CN104941578A - Silica-gel composite particles for purification and preparation method thereof - Google Patents
Silica-gel composite particles for purification and preparation method thereof Download PDFInfo
- Publication number
- CN104941578A CN104941578A CN201510273064.3A CN201510273064A CN104941578A CN 104941578 A CN104941578 A CN 104941578A CN 201510273064 A CN201510273064 A CN 201510273064A CN 104941578 A CN104941578 A CN 104941578A
- Authority
- CN
- China
- Prior art keywords
- silica
- composite particles
- reaction
- parts
- gel composite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Catalysts (AREA)
Abstract
The invention discloses silica-gel composite particles for purification and a preparation method thereof. The silica-gel composite particles are of porous structures microscopically, the pore volume is 0.6-1.8cm<3>/g, the specific surface area is 150-350m<2>/g and the pore-diameter distribution is 0.5-50nm; the water content of the silica-gel composite particles is less than or equal to 5%; the size of the particles is 1-10mm; the removal rate of the silica-gel composite particles for formaldehyde is more than or equal to 95%; the silica-gel composite particles comprises the following components in parts by weight: 40-90 parts of silicon dioxide gel, 1-20 parts of diatomite, 1-20 parts of aluminium oxide, 1-15 parts of active carbon, 1-15 parts of active catalyst component, 1-5 parts of photocatalyst and 1-20 parts of bonding agent. The preparation method comprises the following steps: carrying out mechanical mixing on the silicon dioxide gel loaded with a catalyst and other components, and then granulating into balls or forming a rod shape; drying and obtaining a coarse product; and activating at constant temperature, cooling, sieving and obtaining a finished product. The silica-gel composite particles and the preparation method disclosed by the invention have the advantage that harmful gases such as the formaldehyde, ammonia and methylbenzene can be absorbed by high efficiency.
Description
Technical field
The invention belongs to environment-friendly materials technical field, particularly a kind ofly effectively can dispel formaldehyde, the Bio-sil composite particles that purifies air and preparation method thereof.
Background technology
Environmental protection is the problem that people pay close attention to always, the environmental pollution that social development and scientific and technological progress bring has become the problem of puzzlement human health, especially the pernicious gas such as formaldehyde in the finishing pollution in our daily life, car, Long Term Contact can cause breathing problem, affects cardio-pulmonary function, nervous system, even cause gene mutation and canceration, because indoor decoration pollution causes the report endangering health of people of common occurrence.EPA's statistics shows, room air pollution degree is outdoor 2-5 times, even reaches more than 100 times time serious.Therefore, how effectively the pernicious gas such as degradation of formaldehyde becomes the focus that people pay close attention to.In December, 2014 the indoor air chemical pollution committee of China, national indoor cart environment and environment-friendly products Quality Supervision and Inspection Center environment hold environmental protection industry development conference in national indoor cart in 2014 in Beijing, the status quo and development trend of environmental protection industry (epi) has been made and has summed up and analyze.As can be seen here, people are to the active demand of novel effective environment-friendly products.
At present, the purified product on market is, photocatalyst series products pure based on active carbon class, diatom mainly.Although active carbon and diatom is pure can adsorb pernicious gas, adsorb saturated after lose effect, even may cause secondary pollution.Photocatalyst series products has the ability of certain resolving harmful gas, but needs competence exertion effect under ultraviolet effect due to it, thus also limit its scope of application.
Silica gel is a kind of high activity sorptive material, has the features such as specific area is large, pore passage structure is flourishing, primary particle is thin, and it can the pernicious gas such as formaldehyde, ammonia in selective absorption air, especially stronger to the adsorption capacity of polar gas molecule.Patent CN 104258806 provides a kind of preparation method for surrounding air purification silica gel particle, and this porous silica gel particles specific area is 250-500m
2/ g, pore volume are 1.2-2.0mL/g, average pore size 5-50nm, average grain diameter is 10-100 μm, and the clearance of PARA FORMALDEHYDE PRILLS(91,95) is greater than 85%.As pure in diatom by the purified product that can obtain having decomposing formaldehyde ability at porous material composite catalyzing composition, diatom prepared by a kind of Multi-functional photocatalyst diatom purification particle (CN 201310142911) is pure is exactly composite photo catalyst in the porous material, play the object of decomposing formaldehyde, but owing to taking diatomite as primary raw material, specific area is little, pore volume is little, and photocatalyst catalyst needs just to play effectiveness under ultraviolet light, therefore formaldehyde removing ability does not reach desirable level.
Summary of the invention
The object of the present invention is to provide the pernicious gases such as a kind of formaldehyde can removed in air, ammonia, toluene, especially particularly preferred Bio-sil composite particles for purification of air of the removal effect of PARA FORMALDEHYDE PRILLS(91,95) and preparation method thereof.
For achieving the above object, solution of the present invention is:
Silica gel composite particles is used in a kind of purification, wherein: this silica gel composite particles microcosmic is loose structure, pore volume 0.6-1.8cm
3/ g, specific area 150-350m
2/ g, pore-size distribution 0.5-50nm; Water content≤5% of this silica gel composite particles; Granular size is 1-10mm; Clearance>=95% of this silica gel particle PARA FORMALDEHYDE PRILLS(91,95).
Described purification silica gel composite particles, its weight consists of: silica dioxide gel 40-90 part, diatomite 1-20 part, alundum (Al2O3) 1-20 part, active carbon 1-15 part, active catalyst component 1-15 part, photocatalyst 1-5 part, adhesive 1-20 part.
Described active catalyst component comprises one or more of nano zine oxide, iron oxide, molybdenum oxide, vanadium oxide, cupric oxide, tungsten oxide, cobalt oxide, cerium oxide, nickel oxide, manganese oxide, Nano Silver, nm of gold, metal platinum or nano titanium oxide.
Described adhesive is one or more of starch, dextrin, waterglass, polyvinyl alcohol, hydroxyethylcellulose, hydroxypropyl cellulose, polyacrylamide, CMC, hydroxypropyl methylcellulose, ethyl cellulose, sodium carboxymethylcellulose or microcrystalline cellulose.
A kind of purification uses the preparation method of silica gel composite particles as follows:
Step 1, catalyst activity component and silica dioxide gel to be uniformly mixed, and to add deionized water, mix rear reduction mixing speed, keep stirring 1-24 hour, make catalyst be diffused in the network structure of silica dioxide gel;
Plate and frame filter press squeezed into by step 2, slurry load being crossed catalyst, the water filtration in material fallen, obtains the silica dioxide gel that load has catalyst;
Step 3, by step 2) in material 40-90 part, diatomite 1-20 part, alundum (Al2O3) 1-20 part, active carbon 1-15 part, active catalyst component 1-15 part, photocatalyst 1-5 part, adhesive 1-20 part of obtaining carry out mechanical mixture, then carry out granulation balling-up or become bar-shaped;
Step 4, employing low temperature drying stove or pneumatic conveying drying, carry out drying by the wet feed after granulation, obtain thick product under 80-200oC;
Step 5, by thick product under high temperature furnace 300-650oC constant temperature activation 2-5 hour, sieve after cooling and obtain finished product.
In described step 1, the preparation method of silica dioxide gel is as follows: 1) to be the water glass solution of 5-25% and concentration by concentration the be sulfuric acid of 5-30% is in reaction in-tank mixing, and controls reaction temperature is 20-50oC, and pH value in reaction is 4-10, reacts 0.5-2 hour; 2) after reaction terminates, temperature of reaction kettle is brought up to 60-100oC, keep temperature 1-5 hour, make silica dioxide gel slaking; 3) material that reaction terminates is got to storage tank, Temperature fall, to below 60oC, adopts plate and frame filter press to carry out washing removing sulfate; 4) required silica dioxide gel filter cake is obtained.
A kind of purification uses the preparation method of silica gel composite particles as follows:
Step 1, catalyst activity component and silica dioxide gel to be uniformly mixed, and to add deionized water, mix rear reduction mixing speed, keep stirring 1-24 hour, make catalyst be diffused in the network structure of silica dioxide gel;
Step 2, then employing spraying dry or expansion drying have the silica dioxide gel of catalyst to carry out drying to load, obtain the silica gel powder that load has catalytic component;
Step 3, load there are silica white 40-90 part of catalyst, diatomite 1-20 part, alundum (Al2O3) 1-20 part, active carbon 1-15 part, active catalyst component 1-15 part, photocatalyst 1-5 part, adhesive 1-20 part, appropriate amount of deionized water to carry out mechanical mixture, then carry out granulation balling-up or become bar-shaped;
Step 4, employing low temperature drying stove or pneumatic conveying drying, carry out drying by the wet feed after granulation at 100-300oC, obtain thick product;
Step 5, by thick product under high temperature furnace 300-650oC constant temperature activation 2-5 hour, sieve after cooling and obtain finished product.
In described step 1, the preparation method of silica dioxide gel is as follows: 1) to be the water glass solution of 5-25% and concentration by concentration the be sulfuric acid of 5-30% is in reaction in-tank mixing, and controls reaction temperature is 20-50oC, and pH value in reaction is 4-10, reacts 0.5-2 hour; 2) after reaction terminates, temperature of reaction kettle is brought up to 60-100oC, keep temperature 1-5 hour, make silica dioxide gel slaking; 3) material that reaction terminates is got to storage tank, Temperature fall, to below 60oC, adopts plate and frame filter press to carry out washing removing sulfate; 4) required silica dioxide gel filter cake is obtained.
After adopting such scheme, silica gel composite particles pore volume 0.6-1.8cm of the present invention
3/ g, specific area 150-350m
2/ g, the pernicious gases such as pore-size distribution 0.5-50nm has the feature such as bigger serface, high porosity, and energy efficient adsorption formaldehyde, ammonia, first are stupid, and compound various active component, can divide the pernicious gas of desorption, that improves its PARA FORMALDEHYDE PRILLS(91,95) dispels ability, and formaldehyde clearance reaches more than 95%; Further, silica gel composite particles amount of silica gel is high, nontoxic, preparation process simple, is a kind of safe environment-friendly materials.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of purification silica gel composite particles preparation method of the present invention.
Detailed description of the invention
Present invention is disclosed a kind of purification silica gel composite particles, this silica gel composite particles microcosmic is loose structure, pore volume 0.6-1.8cm
3/ g, specific area 150-350m
2/ g, pore-size distribution 0.5-50nm; Water content≤5% of this silica gel composite particles; Granular size is 1-10mm; Clearance>=95% of this silica gel particle PARA FORMALDEHYDE PRILLS(91,95).
Composition prepared by silica gel composite particles of the present invention comprises following components by weight percent: silica dioxide gel 40-90 part, diatomite 1-20 part, alundum (Al2O3) 1-20 part, active carbon 1-15 part, active catalyst component 1-15 part, photocatalyst 1-5 part, adhesive 1-20 part.Wherein active catalyst component comprises one or more of nano zine oxide, iron oxide, molybdenum oxide, vanadium oxide, cupric oxide, tungsten oxide, cobalt oxide, cerium oxide, nickel oxide, manganese oxide, Nano Silver, nm of gold, metal platinum or nano titanium oxide.Wherein adhesive is one or more of starch, dextrin, waterglass, polyvinyl alcohol, hydroxyethylcellulose, hydroxypropyl cellulose, polyacrylamide, CMC, hydroxypropyl methylcellulose, ethyl cellulose, sodium carboxymethylcellulose or microcrystalline cellulose.
Coordinate shown in Fig. 1, disclosed a kind of purification uses the preparation method of silica gel composite particles as follows:
Step 1, catalyst activity component and silica dioxide gel to be uniformly mixed, and to add deionized water, mix rear reduction mixing speed, keep stirring 1-24 hour, make catalyst be diffused in the network structure of silica dioxide gel;
Wherein the preparation method of silica dioxide gel is as follows:
1) to be the water glass solution of 5-25% and concentration by concentration the be sulfuric acid of 5-30% is in reaction in-tank mixing, and controls reaction temperature is 20-50oC, and pH value in reaction is 4-10, reacts 0.5-2 hour;
2) after reaction terminates, temperature of reaction kettle is brought up to 60-100oC, keep temperature 1-5 hour, make silica dioxide gel slaking;
3) material that reaction terminates is got to storage tank, Temperature fall, to below 60oC, adopts plate and frame filter press to carry out washing removing sulfate;
4) required silica dioxide gel filter cake is obtained.
Plate and frame filter press squeezed into by step 2, slurry load being crossed catalyst, the water filtration in material fallen, obtains the silica dioxide gel that load has catalyst.
Step 3, by step 2) in material 40-90 part, diatomite 1-20 part, alundum (Al2O3) 1-20 part, active carbon 1-15 part, active catalyst component 1-15 part, photocatalyst 1-5 part, adhesive 1-20 part of obtaining carry out mechanical mixture, then carry out granulation balling-up or become bar-shaped.
Step 4, employing low temperature drying stove or pneumatic conveying drying, carry out drying by the wet feed after granulation, obtain thick product under 80-200oC.
Step 5, by thick product under high temperature furnace 300-650oC constant temperature activation 2-5 hour, sieve after cooling and obtain finished product.
Disclosed a kind of purification uses the another kind of preparation method of silica gel composite particles as follows:
Step 1, catalyst activity component and silica dioxide gel to be uniformly mixed, and to add deionized water, mix rear reduction mixing speed, keep stirring 1-24 hour, make catalyst be diffused in the network structure of silica dioxide gel;
Step 2, then employing spraying dry or expansion drying have the silica dioxide gel of catalyst to carry out drying to load, obtain the silica gel powder that load has catalytic component;
Step 3, load there are silica white 40-90 part of catalyst, diatomite 1-20 part, alundum (Al2O3) 1-20 part, active carbon 1-15 part, active catalyst component 1-15 part, photocatalyst 1-5 part, adhesive 1-20 part, appropriate amount of deionized water to carry out mechanical mixture, then carry out granulation balling-up or become bar-shaped;
Step 4, employing low temperature drying stove or pneumatic conveying drying, carry out drying by the wet feed after granulation at 100-300oC, obtain thick product;
Step 5, by thick product under high temperature furnace 300-650oC constant temperature activation 2-5 hour, sieve after cooling and obtain finished product.
The present invention is described in detail below in conjunction with specific embodiment.But embodiment is just in order to illustration purpose, and the scope of content of the present invention is not restricted to this.
embodiment 1
Prepared by silica dioxide gel: (1) by 500kg concentration be 20% water glass solution squeeze in reactor, inject 1000kg deionized water simultaneously; (2) stirring also control temperature is 35oC; (3) squeeze into the sulfuric acid that concentration is 25%, controlling pH value in reaction is 8-9 mixing; (3), after forming gel, continue reaction 30min, then increase the temperature to 90oC aging 2 hours, make silica dioxide gel slaking; (4), after aging end, reaction paste is transferred to storage tank; (5) treat that material temperature degree drops to below 60oC, adopt plate and frame filter press washing, obtain silica dioxide gel filter cake; (6) silica filter cake is transferred in homogenate tank, and add active catalyst component 10 parts, mix and low rate mixing 5h, make catalytic component fully be diffused into gel network structure inside; (7) last, slurry is delivered to filter press and filters, obtain the filter cake that load has active catalyst.
Prepared by silica gel composite particles: filter cake, by admixed together to 80 parts of filter cakes, 15 parts of diatomite, 15 parts of alundum (Al2O3)s, 5 parts of active carbons, 3 parts of photocatalysts, 5 parts of adhesives, broken into fine grained chippings and mixes with unclassified stores by (1) in quick mixer; (2) material mixed is carried out extruding and ball blast, obtain spheric granules; (4) carry out drying with pneumatic conveying drying or fluidized drying to spheric granules, baking temperature is 120oC, obtains dry spheric granules product; (5) in high temperature furnace, carry out activation 3 hours at 450oC, after obtaining finished product, send to packaging.
embodiment 2
Prepared by silica dioxide gel: (1) by 500kg concentration be 20% water glass solution squeeze in reactor, inject 1000kg deionized water simultaneously; (2) stirring also control temperature is 40oC; (3) squeeze into the sulfuric acid that concentration is 25%, controlling pH value in reaction is 8-9 mixing; (3), after forming gel, continue reaction 30min, then increase the temperature to 90oC aging 2 hours, make silica dioxide gel slaking; (4), after aging end, reaction paste is transferred to storage tank; (5) treat that material temperature degree drops to below 60oC, adopt plate and frame filter press washing, obtain silica dioxide gel filter cake; (6) silica filter cake is transferred in homogenate tank, and add active catalyst component 13 parts, mix and low rate mixing 8h; (7) last, slurry is delivered to filter press and filters, obtain the filter cake that load has active catalyst.
Prepared by silica gel composite particles: filter cake, by admixed together to 85 parts of filter cakes, 20 parts of diatomite, 15 parts of alundum (Al2O3)s, 5 parts of active carbons, 2.5 parts of photocatalysts, 6 parts of adhesives, broken into fine grained chippings and mixes with unclassified stores by (1) in quick mixer; (2) material mixed is carried out extruding and ball blast, obtain spheric granules; (4) carry out drying with pneumatic conveying drying or fluidized drying to spheric granules, baking temperature is 130oC, obtains dry spheric granules product; (5) in high temperature furnace, carry out activation 2.5 hours at 500oC, after obtaining finished product, send to packaging.
embodiment 3
Prepared by silica dioxide gel: (1) by 500kg concentration be 15% water glass solution squeeze in reactor, inject 800kg deionized water simultaneously; (2) stirring also control temperature is 30oC; (3) squeeze into the sulfuric acid that concentration is 20%, controlling pH value in reaction is 8-9 mixing; (3), after forming gel, continue reaction 30min, then increase the temperature to 95oC aging 2 hours, make silica dioxide gel slaking; (4), after aging end, reaction paste is transferred to storage tank; (5) treat that material temperature degree drops to below 60oC, adopt plate and frame filter press washing, obtain silica dioxide gel filter cake; (6) silica filter cake is transferred in homogenate tank, and add active catalyst component 8 parts, mix and low rate mixing 3h; (7) last, slurry is delivered to filter press and filters, obtain the filter cake that load has active catalyst.
Prepared by silica gel composite particles: filter cake, by admixed together to 70 parts of filter cakes, 20 parts of diatomite, 20 parts of alundum (Al2O3)s, 5 parts of active carbons, 4 parts of photocatalysts, 5 parts of adhesives, broken into fine grained chippings and mixes with unclassified stores by (1) in quick mixer; (2) material mixed is carried out extruding and ball blast, obtain spheric granules; (4) carry out drying with pneumatic conveying drying or fluidized drying to spheric granules, baking temperature is 100oC, obtains dry spheric granules product; (5) in high temperature furnace, carry out activation 4 hours at 300oC, after obtaining finished product, send to packaging.
embodiment 4
Prepared by silica dioxide gel: (1) by 500kg concentration be 15% water glass solution squeeze in reactor, inject 800kg deionized water simultaneously; (2) stirring also control temperature is 35oC; (3) squeeze into the sulfuric acid that concentration is 15%, controlling pH value in reaction is 7-8 mixing; (3), after forming gel, continue reaction 30min, then increase the temperature to 90oC aging 2 hours, make silica dioxide gel slaking; (4), after aging end, reaction paste is transferred to storage tank; (5) treat that material temperature degree drops to below 60oC, adopt plate and frame filter press washing, obtain silica dioxide gel filter cake; (6) silica filter cake is transferred in homogenate tank, and add active catalyst component 10 parts, mix and low rate mixing 20h, make catalyst fully be diffused into gel network structure inside; (7) last, adopt expansion drying to obtain the silica gel powder that load has catalyst.
Prepared by silica gel composite particles: 70 parts of loads have the silica gel powder of catalyst, 15 parts of diatomite, 15 parts of alundum (Al2O3)s, 5 parts of active carbons, 4 parts of photocatalysts, 5 parts of adhesives, appropriate amount of deionized water rapid mixing in mixer even by (1); (2) material mixed is carried out extruding and ball blast, obtain spheric granules; (4) carry out drying with pneumatic conveying drying or fluidized drying to spheric granules, baking temperature is 150oC, obtains dry spheric granules product; (5) in high temperature furnace, carry out activation 2.5 hours at 500oC, after obtaining finished product, send to packaging.
comparative example
Prepared by silica dioxide gel: preparation method is the same with embodiment 1, only needs leapfrog rapid (6) and step (7), without the need to carrying out the load of active catalyst.
Prepared by silica gel composite particles: (1) 80 part of silica filter cake, 5 parts of direct rapid mixing of adhesive are even; (2) mixed material is carried out extruding and ball blast, obtain spheric granules; (3) carry out drying with pneumatic conveying drying or fluidized drying to spheric granules, baking temperature is 120oC, obtains dry spheric granules product; (5) in high temperature furnace, 450oC heat treatment 3 hours, finished product is obtained.
Product checking: the method that heating loss specifies according to HG/T 3065-2008 measures; Pore volume, specific area, aperture adopt Micro Tristar II 3020 to measure according to the method described in DIN66134; The method that formaldehyde clearance specifies according to QB/T 2761-2006 measures.
table one: embodiment products obtained therefrom testing result
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Comparative example | |
| Heating loss (%) | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 |
| Pore volume (cm 3/g） | 1.26 | 1.17 | 1.15 | 1.33 | 0.84 |
| Specific area (m 2/g） | 310 | 297 | 286 | 315 | 245 |
| Average pore size (nm) | 21.7 | 18.6 | 17.5 | 20.4 | 13.2 |
| Formaldehyde clearance (%) | 97 | 96 | 95 | 98 | 83% |
Claims (8)
1. a silica gel composite particles is used in purification, it is characterized in that: this silica gel composite particles microcosmic is loose structure, pore volume 0.6-1.8cm
3/ g, specific area 150-350m
2/ g, pore-size distribution 0.5-50nm; Water content≤5% of this silica gel composite particles; Granular size is 1-10mm; Clearance>=95% of this silica gel particle PARA FORMALDEHYDE PRILLS(91,95).
2. silica gel composite particles is used in a kind of purification as claimed in claim 1, it is characterized in that: its weight consists of: silica dioxide gel 40-90 part, diatomite 1-20 part, alundum (Al2O3) 1-20 part, active carbon 1-15 part, active catalyst component 1-15 part, photocatalyst 1-5 part, adhesive 1-20 part.
3. silica gel composite particles is used in purification as claimed in claim 2 a kind of, it is characterized in that: described active catalyst component comprises one or more of nano zine oxide, iron oxide, molybdenum oxide, vanadium oxide, cupric oxide, tungsten oxide, cobalt oxide, cerium oxide, nickel oxide, manganese oxide, Nano Silver, nm of gold, metal platinum or nano titanium oxide.
4. silica gel composite particles is used in purification as claimed in claim 2 a kind of, it is characterized in that: described adhesive is one or more of starch, dextrin, waterglass, polyvinyl alcohol, hydroxyethylcellulose, hydroxypropyl cellulose, polyacrylamide, CMC, hydroxypropyl methylcellulose, ethyl cellulose, sodium carboxymethylcellulose or microcrystalline cellulose.
5. a kind of purification the as described in any one of claim 2 to 4 uses the preparation method of silica gel composite particles as follows:
Step 1, catalyst activity component and silica dioxide gel to be uniformly mixed, and to add deionized water, mix rear reduction mixing speed, keep stirring 1-24 hour, make catalyst be diffused in the network structure of silica dioxide gel;
Plate and frame filter press squeezed into by step 2, slurry load being crossed catalyst, the water filtration in material fallen, obtains the silica dioxide gel that load has catalyst;
Step 3, by step 2) in material 40-90 part, diatomite 1-20 part, alundum (Al2O3) 1-20 part, active carbon 1-15 part, active catalyst component 1-15 part, photocatalyst 1-5 part, adhesive 1-20 part of obtaining carry out mechanical mixture, then carry out granulation balling-up or become bar-shaped;
Step 4, employing low temperature drying stove or pneumatic conveying drying, carry out drying by the wet feed after granulation, obtain thick product under 80-200oC;
Step 5, by thick product under high temperature furnace 300-650oC constant temperature activation 2-5 hour, sieve after cooling and obtain finished product.
6. a kind of preparation method purified with silica gel composite particles as claimed in claim 5, it is characterized in that: in described step 1, the preparation method of silica dioxide gel is as follows: 1) be the water glass solution of 5-25% and concentration by concentration be that the sulfuric acid of 5-30% is in reaction in-tank mixing, control reaction temperature is 20-50oC, pH value in reaction is 4-10, reaction 0.5-2 hour; 2) after reaction terminates, temperature of reaction kettle is brought up to 60-100oC, keep temperature 1-5 hour, make silica dioxide gel slaking; 3) material that reaction terminates is got to storage tank, Temperature fall, to below 60oC, adopts plate and frame filter press to carry out washing removing sulfate; 4) required silica dioxide gel filter cake is obtained.
7. a kind of purification the as described in any one of claim 2 to 4 uses the preparation method of silica gel composite particles as follows:
Step 1, catalyst activity component and silica dioxide gel to be uniformly mixed, and to add deionized water, mix rear reduction mixing speed, keep stirring 1-24 hour, make catalyst be diffused in the network structure of silica dioxide gel;
Step 2, then employing spraying dry or expansion drying have the silica dioxide gel of catalyst to carry out drying to load, obtain the silica gel powder that load has catalytic component;
Step 3, load there are silica white 40-90 part of catalyst, diatomite 1-20 part, alundum (Al2O3) 1-20 part, active carbon 1-15 part, active catalyst component 1-15 part, photocatalyst 1-5 part, adhesive 1-20 part, appropriate amount of deionized water to carry out mechanical mixture, then carry out granulation balling-up or become bar-shaped;
Step 4, employing low temperature drying stove or pneumatic conveying drying, carry out drying by the wet feed after granulation at 100-300oC, obtain thick product;
Step 5, by thick product under high temperature furnace 300-650oC constant temperature activation 2-5 hour, sieve after cooling and obtain finished product.
8. a kind of preparation method purified with silica gel composite particles as claimed in claim 7, it is characterized in that: in described step 1, the preparation method of silica dioxide gel is as follows: 1) be the water glass solution of 5-25% and concentration by concentration be that the sulfuric acid of 5-30% is in reaction in-tank mixing, control reaction temperature is 20-50oC, pH value in reaction is 4-10, reaction 0.5-2 hour; 2) after reaction terminates, temperature of reaction kettle is brought up to 60-100oC, keep temperature 1-5 hour, make silica dioxide gel slaking; 3) material that reaction terminates is got to storage tank, Temperature fall, to below 60oC, adopts plate and frame filter press to carry out washing removing sulfate; 4) required silica dioxide gel filter cake is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510273064.3A CN104941578A (en) | 2015-05-26 | 2015-05-26 | Silica-gel composite particles for purification and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510273064.3A CN104941578A (en) | 2015-05-26 | 2015-05-26 | Silica-gel composite particles for purification and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104941578A true CN104941578A (en) | 2015-09-30 |
Family
ID=54156949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510273064.3A Pending CN104941578A (en) | 2015-05-26 | 2015-05-26 | Silica-gel composite particles for purification and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104941578A (en) |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105536526A (en) * | 2016-02-24 | 2016-05-04 | 常州大恒环保科技有限公司 | Wet chemical oxidation waste gas treatment device |
| CN106215690A (en) * | 2016-07-28 | 2016-12-14 | 叶君芝 | A kind of composite promoting Degradation Formaldehyde and preparation method thereof |
| CN106432815A (en) * | 2016-09-07 | 2017-02-22 | 华东师范大学 | Biological nano-composite and preparation method and application thereof |
| CN106669604A (en) * | 2016-12-07 | 2017-05-17 | 福建省宇诚环保科技有限公司 | Air purifying material capable of removing ammonia and secondhand smoke and preparation method thereof |
| CN106732364A (en) * | 2016-12-22 | 2017-05-31 | 安徽乐金环境科技有限公司 | Acetaldehyde absorbent being modified based on silica gel and preparation method thereof |
| CN107159150A (en) * | 2017-06-30 | 2017-09-15 | 上海睿沁环保科技有限公司 | A kind of indoor air purification article and preparation method thereof |
| CN107185485A (en) * | 2017-07-12 | 2017-09-22 | 广东格仑帝环保材料科技有限公司 | A kind of porous air purification plate and its preparation method |
| CN107282067A (en) * | 2017-07-10 | 2017-10-24 | 苏州科技大学 | Alumina substrate loads the photocatalyst material and its preparation method of full spectral absorption |
| CN107488868A (en) * | 2016-06-13 | 2017-12-19 | 中国林业科学研究院木材工业研究所 | A kind of composite and its manufacture method with purifying formaldehyde function |
| CN107812512A (en) * | 2017-10-05 | 2018-03-20 | 镇江泽枫霖建筑材料有限公司 | A kind of preparation method of environment-friendly building materials special-purpose formaldehyde adsorbent |
| CN107899421A (en) * | 2017-12-13 | 2018-04-13 | 深圳市格绿丝纳米科技有限公司 | A kind of photocatalysis air-cleaning filter core module processing technology |
| WO2018068729A1 (en) * | 2016-10-12 | 2018-04-19 | 友好净控科技（浙江）有限公司 | Air purification composite catalyst and preparation method thereof |
| CN108786802A (en) * | 2018-07-16 | 2018-11-13 | 刘全德 | A kind of room temperature purify the air of a room pollutant method for preparing catalyst and its application |
| CN109433223A (en) * | 2018-11-20 | 2019-03-08 | 苏州容电环境科技有限公司 | A kind of preparation method and application of the air purifying particles with ornamental value |
| CN110026167A (en) * | 2019-04-30 | 2019-07-19 | 江苏迅驰新能源科技股份有限公司 | A kind of particulate adsorbent material and preparation method thereof for removing formaldehyde |
| CN110624403A (en) * | 2019-09-24 | 2019-12-31 | 华南理工大学 | A filter with functions of removing formaldehyde and deodorizing and its preparation and application |
| CN110639542A (en) * | 2019-09-06 | 2020-01-03 | 华南理工大学 | In-situ hybridization room-temperature formaldehyde removal catalyst, composite gel, and preparation method and application thereof |
| CN110680170A (en) * | 2019-09-24 | 2020-01-14 | 华南理工大学 | Screen window or curtain capable of removing formaldehyde and VOCs and preparation method thereof |
| CN111036071A (en) * | 2018-10-11 | 2020-04-21 | 深圳市寒暑科技新能源有限公司 | Air purifying agent for removing formaldehyde and preparation method and application thereof |
| CN112169838A (en) * | 2020-11-03 | 2021-01-05 | 南京工程学院 | Honeycomb material supported transition metal oxide catalyst and preparation method thereof |
| CN112495361A (en) * | 2020-12-22 | 2021-03-16 | 深圳笨鸟冰虫环保科技有限公司 | Environment-friendly efficient composite photocatalyst |
| CN113198440A (en) * | 2021-04-30 | 2021-08-03 | 北京依依星科技有限公司 | Photocatalyst particles and preparation method thereof |
| CN114288991A (en) * | 2022-01-11 | 2022-04-08 | 武汉纺织大学 | Preparation method of carbonized organic matter adsorbent and solid-liquid separation device |
| CN114307614A (en) * | 2020-09-30 | 2022-04-12 | 宁波方太厨具有限公司 | Formaldehyde removal material and preparation method thereof |
| CN114377690A (en) * | 2022-01-19 | 2022-04-22 | 中国科学技术大学 | PtFe-SiO2Nanocomposite material, preparation method and application thereof |
| CN115569646A (en) * | 2022-09-08 | 2023-01-06 | 杭州润涞科技服务有限公司 | Preparation method of rare earth compound capable of decomposing formaldehyde and other pollutant gases |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4443354A (en) * | 1982-03-26 | 1984-04-17 | Minnesota Minning And Manufacturing Company | Sorbent material for reducing formaldehyde emission |
| CN1394674A (en) * | 2002-06-27 | 2003-02-05 | 上海交通大学 | Nano compound photocatalyst for cleaning air and its preparation method |
| KR20050051505A (en) * | 2003-11-27 | 2005-06-01 | 코스모정밀화학 주식회사 | Absorbent for removing moisture and methanol of formaldehyde having high degree of purity |
| CN102527228A (en) * | 2011-12-31 | 2012-07-04 | 南京亿谱环境服务有限公司 | Novel visible color change formaldehyde scavenger |
| CN103212368A (en) * | 2013-04-17 | 2013-07-24 | 胡勇 | Multi-functional photocatalyst diatom purification particles and preparation method thereof |
| CN104258806A (en) * | 2014-09-25 | 2015-01-07 | 刘主良 | Porous silica gel air purifying particles and preparation method thereof |
-
2015
- 2015-05-26 CN CN201510273064.3A patent/CN104941578A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4443354A (en) * | 1982-03-26 | 1984-04-17 | Minnesota Minning And Manufacturing Company | Sorbent material for reducing formaldehyde emission |
| CN1394674A (en) * | 2002-06-27 | 2003-02-05 | 上海交通大学 | Nano compound photocatalyst for cleaning air and its preparation method |
| KR20050051505A (en) * | 2003-11-27 | 2005-06-01 | 코스모정밀화학 주식회사 | Absorbent for removing moisture and methanol of formaldehyde having high degree of purity |
| CN102527228A (en) * | 2011-12-31 | 2012-07-04 | 南京亿谱环境服务有限公司 | Novel visible color change formaldehyde scavenger |
| CN103212368A (en) * | 2013-04-17 | 2013-07-24 | 胡勇 | Multi-functional photocatalyst diatom purification particles and preparation method thereof |
| CN104258806A (en) * | 2014-09-25 | 2015-01-07 | 刘主良 | Porous silica gel air purifying particles and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 张高良: "《工业催化剂的生产》", 31 January 1988 * |
| 王学川 等: "甲醛捕获剂的研究进展及其发展前景", 《中国皮革》 * |
Cited By (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105536526A (en) * | 2016-02-24 | 2016-05-04 | 常州大恒环保科技有限公司 | Wet chemical oxidation waste gas treatment device |
| CN105536526B (en) * | 2016-02-24 | 2018-10-30 | 常州大恒环保科技有限公司 | A kind of wet chemical oxidation waste gas treatment device |
| CN107488868A (en) * | 2016-06-13 | 2017-12-19 | 中国林业科学研究院木材工业研究所 | A kind of composite and its manufacture method with purifying formaldehyde function |
| CN106215690A (en) * | 2016-07-28 | 2016-12-14 | 叶君芝 | A kind of composite promoting Degradation Formaldehyde and preparation method thereof |
| CN106432815A (en) * | 2016-09-07 | 2017-02-22 | 华东师范大学 | Biological nano-composite and preparation method and application thereof |
| WO2018068729A1 (en) * | 2016-10-12 | 2018-04-19 | 友好净控科技（浙江）有限公司 | Air purification composite catalyst and preparation method thereof |
| CN106669604A (en) * | 2016-12-07 | 2017-05-17 | 福建省宇诚环保科技有限公司 | Air purifying material capable of removing ammonia and secondhand smoke and preparation method thereof |
| CN106732364A (en) * | 2016-12-22 | 2017-05-31 | 安徽乐金环境科技有限公司 | Acetaldehyde absorbent being modified based on silica gel and preparation method thereof |
| CN107159150A (en) * | 2017-06-30 | 2017-09-15 | 上海睿沁环保科技有限公司 | A kind of indoor air purification article and preparation method thereof |
| CN107282067A (en) * | 2017-07-10 | 2017-10-24 | 苏州科技大学 | Alumina substrate loads the photocatalyst material and its preparation method of full spectral absorption |
| CN107185485A (en) * | 2017-07-12 | 2017-09-22 | 广东格仑帝环保材料科技有限公司 | A kind of porous air purification plate and its preparation method |
| CN107812512A (en) * | 2017-10-05 | 2018-03-20 | 镇江泽枫霖建筑材料有限公司 | A kind of preparation method of environment-friendly building materials special-purpose formaldehyde adsorbent |
| CN107899421A (en) * | 2017-12-13 | 2018-04-13 | 深圳市格绿丝纳米科技有限公司 | A kind of photocatalysis air-cleaning filter core module processing technology |
| CN108786802A (en) * | 2018-07-16 | 2018-11-13 | 刘全德 | A kind of room temperature purify the air of a room pollutant method for preparing catalyst and its application |
| CN111036071A (en) * | 2018-10-11 | 2020-04-21 | 深圳市寒暑科技新能源有限公司 | Air purifying agent for removing formaldehyde and preparation method and application thereof |
| CN109433223A (en) * | 2018-11-20 | 2019-03-08 | 苏州容电环境科技有限公司 | A kind of preparation method and application of the air purifying particles with ornamental value |
| CN109433223B (en) * | 2018-11-20 | 2022-01-25 | 苏州容电环境科技有限公司 | Preparation method and application of air purification particles with ornamental value |
| CN110026167A (en) * | 2019-04-30 | 2019-07-19 | 江苏迅驰新能源科技股份有限公司 | A kind of particulate adsorbent material and preparation method thereof for removing formaldehyde |
| CN110639542A (en) * | 2019-09-06 | 2020-01-03 | 华南理工大学 | In-situ hybridization room-temperature formaldehyde removal catalyst, composite gel, and preparation method and application thereof |
| CN110639542B (en) * | 2019-09-06 | 2021-04-09 | 华南理工大学 | In-situ hybridization room-temperature formaldehyde removal catalyst, composite gel, and preparation method and application thereof |
| CN110624403B (en) * | 2019-09-24 | 2021-09-17 | 华南理工大学 | Filter screen with formaldehyde and odor removing functions and preparation and application thereof |
| CN110624403A (en) * | 2019-09-24 | 2019-12-31 | 华南理工大学 | A filter with functions of removing formaldehyde and deodorizing and its preparation and application |
| CN110680170A (en) * | 2019-09-24 | 2020-01-14 | 华南理工大学 | Screen window or curtain capable of removing formaldehyde and VOCs and preparation method thereof |
| CN114307614A (en) * | 2020-09-30 | 2022-04-12 | 宁波方太厨具有限公司 | Formaldehyde removal material and preparation method thereof |
| CN112169838A (en) * | 2020-11-03 | 2021-01-05 | 南京工程学院 | Honeycomb material supported transition metal oxide catalyst and preparation method thereof |
| CN112495361A (en) * | 2020-12-22 | 2021-03-16 | 深圳笨鸟冰虫环保科技有限公司 | Environment-friendly efficient composite photocatalyst |
| CN113198440A (en) * | 2021-04-30 | 2021-08-03 | 北京依依星科技有限公司 | Photocatalyst particles and preparation method thereof |
| CN114288991A (en) * | 2022-01-11 | 2022-04-08 | 武汉纺织大学 | Preparation method of carbonized organic matter adsorbent and solid-liquid separation device |
| CN114377690A (en) * | 2022-01-19 | 2022-04-22 | 中国科学技术大学 | PtFe-SiO2Nanocomposite material, preparation method and application thereof |
| CN114377690B (en) * | 2022-01-19 | 2023-10-20 | 中国科学技术大学 | PtFe-SiO 2 Nanocomposite, method for producing the same and use thereof |
| CN115569646A (en) * | 2022-09-08 | 2023-01-06 | 杭州润涞科技服务有限公司 | Preparation method of rare earth compound capable of decomposing formaldehyde and other pollutant gases |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104941578A (en) | Silica-gel composite particles for purification and preparation method thereof | |
| CN111036192B (en) | Coated wear-resistant vanadium-based denitration catalyst and preparation method and application thereof | |
| CN103769239B (en) | Honeycomb type denitrating catalyst with hierarchical porous structure and preparation method thereof | |
| WO2020135202A1 (en) | Honeycomb scr denitration catalyst having three-dimensional hierarchical porous structure and preparation method | |
| CN113289602A (en) | Catalyst for carbonyl sulfide hydrolysis in blast furnace gas and preparation method and application thereof | |
| CN101362072A (en) | Adsorbent and preparation method for removing trace amount of benzene in carbon dioxide | |
| CN101890336A (en) | A kind of activated alumina composite activated carbon material and preparation method thereof | |
| CN112295395B (en) | A kind of flue gas desulfurizer and its preparation method and application | |
| CN107362823B (en) | Catalytic material for degrading indoor formaldehyde at room temperature and preparation method thereof | |
| CN104475122A (en) | Forming SCR catalyst with both water resistance and sulphur resistance and preparation method thereof | |
| CN107572635B (en) | A kind of preparation method of waste water micro-electrolysis iron-carbon filler | |
| US11478783B2 (en) | Wall-flow honeycomb catalyst for dust removal and low-temperature denitrification of flue gas, and preparation process thereof | |
| CN106512598A (en) | Ceramic membrane filtering element having dust removal and catalytic denitration functions and preparation method of ceramic membrane filtering element | |
| CN110124645A (en) | A kind of VOCs catalyst for catalytic combustion and preparation method thereof | |
| CN106964387A (en) | A kind of preparation method and application of the carbon nitrogen nanometer bead of supported copper palldium alloy particle | |
| CN110882691B (en) | A kind of cordierite supported medium temperature denitration catalyst and preparation method thereof | |
| WO2019062448A1 (en) | Desulfurizer, and preparation method therefor and application thereof | |
| CN108837823A (en) | A kind of perovskite type catalyst and its monoblock type forming method and application | |
| CN116462529B (en) | Method for preparing silicon carbide film support body from active coke fly ash | |
| CN111036071A (en) | Air purifying agent for removing formaldehyde and preparation method and application thereof | |
| CN102500372A (en) | Copper oxide loaded attapulgite catalyst and preparation method and applications thereof | |
| CN113426477A (en) | Low-temperature flue gas denitration catalyst for selectively reducing NOx by using CO and application thereof | |
| CN106179226B (en) | NOx adsorbent and preparation method thereof | |
| CN104353355A (en) | Ceramic purifier for purifying ozone in air and preparation method of ceramic purifier | |
| CN105126813A (en) | High-specific-surface denitration catalyst and preparation and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150930 |
|
| WD01 | Invention patent application deemed withdrawn after publication |