CN106693917B - The formula and preparation method thereof of adsorbent in a kind of trifluoroiodomethane gas switch cabinet - Google Patents
The formula and preparation method thereof of adsorbent in a kind of trifluoroiodomethane gas switch cabinet Download PDFInfo
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- CN106693917B CN106693917B CN201611181612.0A CN201611181612A CN106693917B CN 106693917 B CN106693917 B CN 106693917B CN 201611181612 A CN201611181612 A CN 201611181612A CN 106693917 B CN106693917 B CN 106693917B
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- Prior art keywords
- adsorbent
- cyclodextrin
- gas switch
- switch cabinet
- trifluoroiodomethane
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- 239000003463 adsorbent Substances 0.000 title claims abstract description 26
- VPAYJEUHKVESSD-UHFFFAOYSA-N trifluoroiodomethane Chemical compound FC(F)(F)I VPAYJEUHKVESSD-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 238000009472 formulation Methods 0.000 title abstract description 3
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 claims abstract description 41
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 31
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 30
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 30
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 30
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229920000858 Cyclodextrin Polymers 0.000 claims abstract description 16
- HFHDHCJBZVLPGP-UHFFFAOYSA-N schardinger α-dextrin Chemical compound O1C(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(O)C2O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC2C(O)C(O)C1OC2CO HFHDHCJBZVLPGP-UHFFFAOYSA-N 0.000 claims abstract description 16
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims abstract description 14
- 235000019441 ethanol Nutrition 0.000 claims abstract description 14
- 229910052740 iodine Inorganic materials 0.000 claims abstract description 14
- 239000011630 iodine Substances 0.000 claims abstract description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000741 silica gel Substances 0.000 claims abstract description 13
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 13
- 229960001866 silicon dioxide Drugs 0.000 claims abstract description 13
- 239000002274 desiccant Substances 0.000 claims abstract description 11
- 239000000292 calcium oxide Substances 0.000 claims abstract description 10
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 10
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000470 constituent Substances 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 6
- 239000012065 filter cake Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 3
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000004571 lime Substances 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims 1
- 235000009508 confectionery Nutrition 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 239000011591 potassium Substances 0.000 claims 1
- 229910052700 potassium Inorganic materials 0.000 claims 1
- 239000002253 acid Substances 0.000 abstract description 8
- 150000004820 halides Chemical class 0.000 abstract description 8
- 239000007787 solid Substances 0.000 abstract description 8
- 238000009413 insulation Methods 0.000 abstract description 6
- 239000002250 absorbent Substances 0.000 abstract description 2
- 230000002745 absorbent Effects 0.000 abstract description 2
- 238000001179 sorption measurement Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 21
- 229960004756 ethanol Drugs 0.000 description 6
- 238000009835 boiling Methods 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 229920000915 polyvinyl chloride Polymers 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 229960000935 dehydrated alcohol Drugs 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000012047 saturated solution Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- 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
- B01J20/02—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
- B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- 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
- B01J20/02—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
- B01J20/041—Oxides or hydroxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- 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
- B01J20/02—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
- B01J20/046—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 halogens, e.g. halides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- 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
- B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/20—Halogens or halogen compounds
- B01D2257/206—Organic halogen compounds
- B01D2257/2068—Iodine
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The present invention relates to absorbent fields, the formula and preparation method thereof of adsorbent, is mixed in a certain ratio: silica-gel desiccant, cyclodextrin, potassium iodide, water, ethyl alcohol, methanol, acetone, glycerol, ethylene glycol, calcium oxide by following component in especially a kind of trifluoroiodomethane gas switch cabinet.Adsorbent provided by the present invention, it can efficiently be widely used in trifluoroiodomethane gas switchgear, aqueous vapor, iodine and the acid halide in switchgear can be adsorbed, adsorption efficiency is high, it can effectively delay the electric elements such as switchgear median generatrix, cable and solid insulation to corrode, while the solid decomposers such as iodine being avoided to adhere to the normal operation for influencing equipment on electrical component.
Description
Technical field
The present invention relates to absorbent fields, in especially a kind of trifluoroiodomethane gas switch cabinet the formula of adsorbent and its
Preparation method.
Background technique
In recent years, in gas-insulated switchgear field, a kind of novel environmentally friendly insulating gas trifluoroiodomethane (CF3I)
Because its excellent electric property and physico-chemical property are widely regarded as most possibly substituting one of the gas of SF6.Traditional SF6 gas
The adsorbent of switchgear for adsorbing the aqueous vapor in switchgear, is kept out primarily to moistureproof design, main component are silica gel
It is dry to close cabinet, prevents the bus in switchgear, cable and solid insulation etc. from contacting the chemical reactions such as generation corrosion with aqueous vapor.
But novel trifluoroiodomethane gas switch cabinet can generate few after prolonged work along with the decomposition of trifluoroiodomethane
The elemental iodine of amount breaks down there are solid insulations such as polyvinyl chloride in switchgear and occurs also generate gas when disruptive discharge
The elemental iodine and acid halide of state, if elemental iodine and the acid halide long-term existence in cabinet can cause internal original part
The normal operation of seriously corroded influence switchgear.Not yet discovery can be adsorbed simultaneously in switchgear currently on the market
The absorption agent prescription of water, iodine and acid halide.
Summary of the invention
In order to solve drawbacks described above and deficiency existing in the prior art, the present invention provides a kind of trifluoroiodomethane gases
The formula of adsorbent in switchgear, and the preparation method of above-mentioned adsorbent is provided.The formula of the adsorbent can adsorb switchgear
In aqueous vapor, iodine and acid halide.
In order to solve the above technical problems, the technical solution adopted by the present invention are as follows: in a kind of trifluoroiodomethane gas switch cabinet
The formula of adsorbent, it is characterised in that: be mixed in a certain ratio by following component: major constituent: silica-gel desiccant, ring paste
Essence, calcium oxide.Secondary solvent component: potassium iodide, water, ethyl alcohol, methanol, acetone, glycerol, ethylene glycol.
The major constituent is submerged by secondary solvent completely.
Preferably, the component containing following parts by weight:
Silica-gel desiccant: 80g
Cyclodextrin: 10g
Potassium iodide: 1g
Water: 1.2ml
Ethyl alcohol: 81ml
Methanol: 8ml
Acetone: 7.5ml
Glycerol: 2ml
Ethylene glycol: 2.5ml
Calcium oxide: 10g.
The preparation method of the formula of adsorbent, step in trifluoroiodomethane gas switch cabinet are as follows: potassium iodide is dissolved in water, second
In the mixed solution that alcohol, methanol, acetone, glycerol and ethylene glycol form；Cyclodextrin is sufficiently impregnated in above-mentioned liquor kalii iodide,
Filter cake is filtered out, drying is being stored at room temperature；By treated cyclodextrin ratio by weight and silica-gel desiccant and calcium oxide
Powder is uniformly mixed.All operations carry out at room temperature.
Working principle of the present invention is as follows: silica-gel desiccant can effectively adsorb the steam in switchgear.Switchgear memory
In solid insulations such as polyvinyl chloride, break down when disruptive discharge occurs can acid halide (HX, wherein X be fluorine element or
Person's chlorine element), calcium oxide can react with HX:
CaO+2HX-------CaX2+H2O
Cyclodextrin can form the complex compound of stable iodine with iodine, impregnate by KI, elemental iodine in conjunction with KI after with
Cyclodextrin it is more firm, such as Fig. 1.
I2+KI-------K++I3 -
Compared with the existing technology, present invention advantageous effects achieved are as follows: adsorbent provided by the present invention, it can be with
It is efficiently widely used in trifluoroiodomethane gas switchgear, aqueous vapor, iodine and the acid in switchgear can be adsorbed
Property halide, adsorption efficiency is high, and the electric elements such as switchgear median generatrix, cable and solid insulation can effectively be delayed to occur
Corrosion, while the solid decomposers such as iodine being avoided to adhere to the normal operation for influencing equipment on electrical component.
Detailed description of the invention
Fig. 1 is main operational principle schematic diagram of the invention.
Specific embodiment
The invention will be further described combined with specific embodiments below.Following embodiment is only used for clearly illustrating
Technical solution of the present invention, and not intended to limit the protection scope of the present invention.
Embodiment one:
1g potassium iodide is dissolved in 0.7ml water, 0.5ml boiling water, 22ml ethyl alcohol, 8ml boiling ethyl alcohol, 51ml dehydrated alcohol, 8ml first
Alcohol, 7.5ml acetone, 2ml glycerol, about 2.5ml ethylene glycol.Cyclodextrin is sufficiently impregnated in saturated solution of potassium iodide, filters out filter
Cake, it is 48 hours dry being stored at room temperature.By treated cyclodextrin 10g and 80g silica-gel desiccant and 10g lime powder
It is uniformly mixed, adsorbent needed for both obtaining.
Embodiment two:
2g potassium iodide is dissolved in 0.5ml water, 0.5ml boiling water, 30ml ethyl alcohol, 10ml boiling ethyl alcohol, 40ml dehydrated alcohol, 5ml
Methanol, 5ml acetone, 3ml glycerol, 3ml ethylene glycol.Cyclodextrin is sufficiently impregnated in saturated solution of potassium iodide, filters out filter cake,
It is stored at room temperature 48 hours dry.Treated cyclodextrin 20g is mixed with 60g silica-gel desiccant and 20g lime powder
Uniformly, adsorbent needed for both obtaining.
Embodiment three:
Prepare 3 identical close test cabinets, trifluoroiodomethane gas is filled in cabinet 1 and the nitrogen containing micro- water mixes
Gas is closed, the adsorbent that embodiment one is prepared is added in cabinet 2 and is filled with the gas with 1 cabinet ingredient of cabinet, is added in cabinet 3
Adsorbent that embodiment two is prepared simultaneously is filled with gas with 1 cabinet ingredient of cabinet, after standing 5h, the cabinet surveyed with micro- water gaging instrument
Water content is about 60ppm in 1, and the water content in cabinet 2 is about 10ppm, and the water content in cabinet 3 is about 10ppm, illustrates two kinds
The adsorbent of proportion being capable of steam in effective absorption casing.
Example IV:
Prepare 3 identical close test cabinets, ball plate electrode is added in cabinet.Trifluoroiodomethane gas is filled in cabinet 1,
The adsorbent that embodiment one is prepared is added in cabinet 2 and is filled with the gas with 1 cabinet ingredient of cabinet, embodiment is added in cabinet 3
Two adsorbents prepared simultaneously are filled with gas with 1 cabinet ingredient of cabinet.Gap between ball plate electrode is 5cm, is put on plate electrode
The solid insulation for setting polyvinyl chloride material applies power frequency high voltage in ball electrode and makes power-frequency discharge 100 between ball plate electrode
After secondary, the pH value in two cabinets is tested respectively with accurate pH test paper, the results showed that gas pH value is about 6.5 in cabinet 1, cabinet
Gas pH value is about 7 in 2, and gas pH value is about 7 in cabinet 3, in the effective absorption casing of adsorbent for illustrating two kinds of proportions
Acid halide.The ball electrode in cabinet is taken out simultaneously, finds the iodine that thin layer brown is covered in the ball electrode in cabinet 1
Simple substance, and there is no similar phenomenon in the ball electrode in cabinet 2 and cabinet 3, illustrate that the adsorbent of two kinds of proportions is effectively inhaled
The iodine generated in attached discharge process.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (5)
1. adsorbent in a kind of trifluoroiodomethane gas switch cabinet, it is characterised in that: be mixed in a certain ratio by following component and
At: major constituent: silica-gel desiccant, cyclodextrin, calcium oxide；Secondary solvent component: potassium iodide, water, ethyl alcohol, methanol, acetone, sweet
Oil, ethylene glycol；
Major constituent compositional range, mass percent
Silica-gel desiccant 40-80%
Cyclodextrin 10-20%
Calcium oxide 10-20%
The sum of mass percent of silica-gel desiccant, cyclodextrin and calcium oxide is 100%；
Secondary solvent component compositional range, mass percent
Potassium iodide 1-3%
Water 1-2%
Ethyl alcohol 65-85%
Methanol 5-10%
Acetone 5-10%
Glycerol 1-5%
Ethylene glycol 1-5%
The sum of potassium iodide, mass percent of water, ethyl alcohol, methanol, acetone, glycerol and ethylene glycol are 100%；
The major constituent is submerged by secondary solvent completely.
2. adsorbent in a kind of trifluoroiodomethane gas switch cabinet according to claim 1, it is characterised in that: it contains
Following component:
Silica-gel desiccant: 80g
Cyclodextrin: 10g
Potassium iodide: 1g
Water: 1.2mL
Ethyl alcohol: 81mL
Methanol: 8mL
Acetone: 7.5mL
Glycerol: 2mL
Ethylene glycol: 2.5mL
Calcium oxide: 10g.
3. the preparation method of adsorbent, step in trifluoroiodomethane gas switch cabinet described in claim 1 or 2 are as follows: by iodine
Change potassium to be dissolved in the mixed solution of water, ethyl alcohol, methanol, acetone, glycerol and ethylene glycol composition；Cyclodextrin is molten in above-mentioned potassium iodide
It is sufficiently impregnated in liquid, filters out filter cake, be stored at room temperature drying；Treated cyclodextrin ratio by weight is done with silica gel
Drying prescription and lime powder are uniformly mixed；All operations carry out at room temperature.
4. the preparation method of adsorbent in trifluoroiodomethane gas switch cabinet as claimed in claim 3, it is characterised in that: described
Major constituent is submerged by secondary solvent completely.
5. adsorbent is applied to trifluoroiodomethane gas switch in trifluoroiodomethane gas switch cabinet described in claim 1 or 2
In cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611181612.0A CN106693917B (en) | 2016-12-20 | 2016-12-20 | The formula and preparation method thereof of adsorbent in a kind of trifluoroiodomethane gas switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611181612.0A CN106693917B (en) | 2016-12-20 | 2016-12-20 | The formula and preparation method thereof of adsorbent in a kind of trifluoroiodomethane gas switch cabinet |
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| Publication Number | Publication Date |
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| CN106693917A CN106693917A (en) | 2017-05-24 |
| CN106693917B true CN106693917B (en) | 2019-03-19 |
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| CN201611181612.0A Active CN106693917B (en) | 2016-12-20 | 2016-12-20 | The formula and preparation method thereof of adsorbent in a kind of trifluoroiodomethane gas switch cabinet |
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Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5130454B2 (en) * | 2006-10-10 | 2013-01-30 | 地方独立行政法人青森県産業技術センター | Iodine adsorption and recovery method |
| JP5713948B2 (en) * | 2012-03-27 | 2015-05-07 | 株式会社東芝 | Iodine adsorbent |
| CN103920307B (en) * | 2014-03-18 | 2015-11-11 | 东南大学 | A kind of method of iodine in efficient separation and concentration sample |
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