CN109529787A - A kind of preparation method of formaldehyde absorbing molecular sieve - Google Patents
A kind of preparation method of formaldehyde absorbing molecular sieve Download PDFInfo
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- CN109529787A CN109529787A CN201811509252.1A CN201811509252A CN109529787A CN 109529787 A CN109529787 A CN 109529787A CN 201811509252 A CN201811509252 A CN 201811509252A CN 109529787 A CN109529787 A CN 109529787A
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- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
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- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
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- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
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- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
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- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
- B01J20/048—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium containing phosphorus, e.g. phosphates, apatites, hydroxyapatites
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- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/12—Naturally occurring clays or bleaching earth
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
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Abstract
The invention discloses a kind of preparation methods of formaldehyde absorbing molecular sieve, comprising the following specific steps dehydration and drying to water content is less than 18wt% and obtains modified molecular screen powder after NaX type molecular screen primary powder 1) is carried out calcium ion-exchanged；2) by the modified molecular screen powder and kaolin after step 1) ion exchange, foreign earthenware soil, attapulgite, anhydrous sodium pyrophosphate, carboxymethyl cellulose, binder, ammonium-containing compound are uniformly mixed, it is granulated, it is dry, it is finally activated in 500-580 DEG C and formaldehyde absorbing molecular sieve is made；Using formaldehyde absorbing molecular sieve prepared by the present invention have formaldehyde adsorption performance it is good, safety and environmental protection, will not secondary pollution the advantages of.
Description
Technical field
The present invention relates to binding molecules to sieve field, is especially a kind of preparation method of formaldehyde absorbing molecular sieve.
Background technique
Present people's house, hotel, hotel, factory, office, school have all carried out the finishing of different-format, ornament materials
It is very good-looking with the appearance of paint, but it is very big to hide the formaldehyde harmfulness volatilized in the material.Formaldehyde not only endangers people
Class also endangers indoor pet and plant, very low to the survival rate of toy or flower landscape, to pregnant woman and fetus by it is infertile to
It is lopsided abnormal.The volatility of formaldehyde is up to 3-15, can generate carcinogenic substance to human or animal.Inspection result shows to drip first for one
Aldehyde injects wood appearance, then does not stop to wash away with tap water, about needs 28 talentes that can completely remove.Formaldehyde belongs to organic original
Material, is medically called " formalin " to 35-40% formalin.Its concentration reaches 0.06- in every cubic metres of air
0.07mg/m3When, children can pant, when reaching 0.1mg/m in air3When have peculiar smell and sense of discomfort, reach 0.6mg/m3When
It stimulates eyes to shed tears, nausea and vomiting, reaches 30mg/m3When can causing death quickly.There is formaldehyde in a word where, to
Habit, office, rest can all generate harm, and generated formaldehyde is ubiquitous in finishing material and furniture, therefore is developed
A kind of molecular sieve of effective formaldehyde adsorption has important environment protection significance.
Summary of the invention
The shortcomings that overcoming the above prior art: the technical problem to be solved by the present invention is to provide a kind of formaldehyde adsorption
Can good, safety and environmental protection, will not secondary pollution formaldehyde absorbing molecular sieve preparation method.
Technical solution of the invention is as follows: a kind of preparation method of formaldehyde absorbing molecular sieve, including walks in detail below
It is rapid:
1) after NaX type molecular screen primary powder being carried out calcium ion-exchanged, dehydration and drying to water content is less than 18wt% and obtains modified molecules
Sieve powder；
2) by the modified molecular screen powder and kaolin after step 1) ion exchange, foreign earthenware soil, attapulgite, anhydrous pyrophosphoric acid
Sodium, carboxymethyl cellulose, binder, ammonium-containing compound are uniformly mixed, and are granulated, dry, finally activate in 500-580 DEG C and first is made
Aldehyde binding molecule sieve；Each group distribution ratio is as follows in parts by weight: 80-100 parts of modified molecular screen powder；5-7.5 parts of kaolin；Ocean
15-25 parts of earthenware soil；8-12 parts of attapulgite；1-1.5 parts of anhydrous sodium pyrophosphate；1-1.5 parts of carboxymethyl cellulose；Binder 0.8-
1.7 part；0.3-0.45 parts of ammonium-containing compound.
The calcium ion-exchanged is that NaX type molecular screen primary powder and calcium containing compound powder are used steam fumigating after mixing
It steams or NaX type molecular screen primary powder and calcium containing compound powder is added after mixing in 80-105 DEG C of water and heat 6-10h.
The mass ratio of the NaX type molecular screen primary powder and calcium containing compound is 1 ︰ (0.18-0.23).
The calcium containing compound is one or more of calcium oxide, calcium chloride, calcium carbonate.
The binder is myrica extract, SG natural plant gum is one or more.
The ammonium-containing compound is one or both of ammonium chloride, ammonium sulfide.
The beneficial effects of the present invention are: the present invention exchanges NaX type molecular screen primary powder by calcium containing compound, in conjunction with kaolinite
Soil, foreign earthenware soil, attapulgite, anhydrous sodium pyrophosphate, carboxymethyl cellulose, physical absorbent is made in ammonium-containing compound, to absorption
Formaldehyde afterwards ensures to penetrate at 180 days.Formaldehyde adsorbent absorption property of the present invention is good, and the molecular sieve of adsorption saturation adds water
It impregnates, can carry out except aldehyde, impregnate except after aldehyde appearance can be packed by molecular sieve is cooling after 200 DEG C of dryings process 2-8h regeneration of drying box
Device continue to use or it is in bulk as cat litter can also make other desiccant, the physical property adsorption conditions of molecular sieve be no high temperature,
It under no pressure, will not penetrate, adsorb safety and environmental protection than normal activated carbon, it will not secondary pollution.Formaldehyde absorbing molecule of the present invention
The large amount of adsorption of the formaldehyde of sieve adsorbs duct diameter and is greater than formaldehyde molecule diameter in 15wt%, but not excessive, surface duct diameter mistake
Greatly, binding molecule penetrates readily through, and inner duct is too small to be related to adsorption storage energy, above molecular sieve give-and-take conditions and variousization
The proportion for learning agent is discharged and designs for 4.6A into being 4.5A according to the chemical molecular diameter of formaldehyde.The present invention is in adsorption process
Molecular sieve surface has a kind of feature easily identified, that is, starting molecular sieve is canescence, once formaldehyde adsorption, an oxidation
Carbon, carbon dioxide, benezene material, molecular sieve will become peony or spot color, and absorption is more long, and color is deeper.Adsorbent can be anti-
It uses 5 years or more again.Molecular sieve absorption ensures not penetrate, facilitates recovery processing.
Specific embodiment
The present invention is described in further details with specific embodiment below, but the present invention is not only limited in detail below in fact
Apply example.
Embodiment one
Formaldehyde absorbing molecular sieve is prepared according to step in detail below:
1) 100 DEG C or more of steam is used to fumigate after mixing with 200g calcium chloride 1000g NaX type molecular screen primary powder
220min, dehydration and drying to water content are less than 18wt% and obtain modified molecular screen powder；
2) following each component is weighed in parts by weight: 85 parts of modified molecular screen powder；6 parts of kaolin；Foreign 25 parts of earthenware soil；Concave convex rod
12 parts of soil；1.5 parts of anhydrous sodium pyrophosphate；1.5 parts of carboxymethyl cellulose；1.7 parts of myrica extract；0.45 part of ammonium chloride；It will weigh
Each component be uniformly mixed, using pelletizer complete different size specification granulation, the particle made hangs 12h or more, then puts
Dried to the dry cup of refractory ceramics with 105 DEG C of thermostatic drying chamber through 2-3h, place into 575 DEG C of high temperature resistance furnace through 2h activation at
Reason is subsequently cooled to 30 DEG C or so and formaldehyde absorbing molecular sieve is made, detects to this batch sample.Measure formaldehyde adsorption amount >=
18wt%；Carbon monoxide absorption >=4.1wt%；Carbon dioxide adsorption >=13 wt %；Benezene material adsorbs >=15 wt%, Static Water
>=25.6 wt% are adsorbed, Dynamic Water adsorbs >=24.3 wt%.
Embodiment two
Formaldehyde absorbing molecular sieve is prepared according to step in detail below:
1) 1000g NaX type molecular screen primary powder and 180g calcium carbonate powder are used to 100 DEG C or more of steam fumigating after mixing
220min is steamed, dehydration and drying to water content is less than 18wt% and obtains modified molecular screen powder；
2) following each component is weighed in parts by weight: 80 parts of modified molecular screen powder；7.5 parts of kaolin；Foreign 15 parts of earthenware soil；It is concave-convex
12 parts of stick soil；1.5 parts of anhydrous sodium pyrophosphate；1.5 parts of carboxymethyl cellulose；0.5 part of myrica extract；0.8 part of SG natural plant gum；Vulcanization
0.3 part of ammonium；Weighed each component is uniformly mixed, the granulation of different size specification is completed using pelletizer, the particle made dries in the air
12h or more is set, then is put into the dry cup of refractory ceramics and is dried with 105 DEG C of thermostatic drying chamber through 2-3h, places into high temperature resistance furnace 575
It DEG C is activated through 2h, is subsequently cooled to 30 DEG C or so and formaldehyde absorbing molecular sieves are made, this batch sample is detected.It measures
Formaldehyde adsorption amount >=19.2wt%；Carbon monoxide absorption >=3.9wt%；Carbon dioxide adsorption >=14 wt %；Benezene material absorption >=
13 wt%, Static Water adsorb >=23.6 wt%, and Dynamic Water adsorbs >=24.2 wt%.
Embodiment three
Formaldehyde absorbing molecular sieve is prepared according to step in detail below:
1) 1000g NaX type molecular screen primary powder and 230g calcium chloride are added after mixing in 80-105 DEG C of water and heat 6-10h,
Dehydration and drying to water content is less than 18wt% and obtains modified molecular screen powder；
2) following each component is weighed in parts by weight: 100 parts of modified molecular screen powder；5 parts of kaolin；Foreign 15 parts of earthenware soil；It is concave-convex
8 parts of stick soil；1 part of anhydrous sodium pyrophosphate；1 part of carboxymethyl cellulose；1.7 parts of myrica extract；0.3 part of ammonium chloride；It will be weighed each
Component is uniformly mixed, and the granulation of different size specification is completed using pelletizer, the particle made hangs 12h or more, then is put into height
The warm dry cup of ceramics is dried with 105 DEG C of thermostatic drying chamber through 2-3h, is placed into 575 DEG C of high temperature resistance furnace and is activated through 2h, so
After be cooled to 30 DEG C or so be made formaldehyde absorbing molecular sieves, this batch sample is detected.Measure formaldehyde adsorption amount >=
18.5wt%；Carbon monoxide absorption >=4.3wt%；Carbon dioxide adsorption >=11 wt %；Benezene material adsorbs >=13 wt%, static
Water adsorbs >=25.3 wt%, and Dynamic Water adsorbs >=24 wt%.
The above is only feature implementation examples of the invention, are not limited in any way to the scope of the present invention.It is all to use together
The technical solution formed Deng exchange or equivalence replacement, all falls within rights protection scope of the present invention.
Claims (6)
1. a kind of preparation method of formaldehyde absorbing molecular sieve, it is characterised in that: comprising the following specific steps
1) after NaX type molecular screen primary powder being carried out calcium ion-exchanged, dehydration and drying to water content is less than 18wt% and obtains modified molecules
Sieve powder；
2) by the modified molecular screen powder and kaolin after step 1) ion exchange, foreign earthenware soil, attapulgite, anhydrous pyrophosphoric acid
Sodium, carboxymethyl cellulose, binder, ammonium-containing compound are uniformly mixed, and are granulated, dry, finally activate in 500-580 DEG C and first is made
Aldehyde binding molecule sieve；Each group distribution ratio is as follows in parts by weight: 80-100 parts of modified molecular screen powder；5-7.5 parts of kaolin；Ocean
15-25 parts of earthenware soil；8-12 parts of attapulgite；1-1.5 parts of anhydrous sodium pyrophosphate；1-1.5 parts of carboxymethyl cellulose；Binder 0.8-
1.7 part；0.3-0.45 parts of ammonium-containing compound.
2. the preparation method of formaldehyde absorbing molecular sieve according to claim 1, it is characterised in that: the calcium ion-exchanged is
By NaX type molecular screen primary powder and calcium containing compound powder use steam stifling after mixing or by NaX type molecular screen primary powder with
Calcium containing compound powder is added in 80-105 DEG C of water after mixing and heats 6-10h.
3. the preparation method of formaldehyde absorbing molecular sieve according to claim 1, it is characterised in that: the NaX type molecular sieve
The mass ratio of original powder and calcium containing compound is 1 ︰ (0.18-0.23).
4. the preparation method of formaldehyde absorbing molecular sieve according to claim 1, it is characterised in that: the calcium containing compound is
One or more of calcium oxide, calcium chloride, calcium carbonate.
5. the preparation method of formaldehyde absorbing molecular sieve according to claim 1, it is characterised in that: the binder is red bayberry
Tannin extract, SG natural plant gum are one or more.
6. the preparation method of formaldehyde absorbing molecular sieve according to claim 1, it is characterised in that: the ammonium-containing compound is
One or both of ammonium chloride, ammonium sulfide.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113016634A (en) * | 2021-04-16 | 2021-06-25 | 安徽省农业科学院农产品加工研究所 | Method for preparing urethral protection cat litter by mixed fermentation of probiotics |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113016634A (en) * | 2021-04-16 | 2021-06-25 | 安徽省农业科学院农产品加工研究所 | Method for preparing urethral protection cat litter by mixed fermentation of probiotics |
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Application publication date: 20190329 |