CN106984139A - Anion exchange resin produces the handling process of waste gas - Google Patents
Anion exchange resin produces the handling process of waste gas Download PDFInfo
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- CN106984139A CN106984139A CN201710278524.0A CN201710278524A CN106984139A CN 106984139 A CN106984139 A CN 106984139A CN 201710278524 A CN201710278524 A CN 201710278524A CN 106984139 A CN106984139 A CN 106984139A
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- exchange resin
- anion exchange
- waste gas
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- 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
- B01D53/14—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 absorption
- B01D53/1406—Multiple stage absorption
-
- 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
- B01D53/14—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 absorption
- B01D53/1425—Regeneration of liquid absorbents
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- 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
- B01D53/14—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 absorption
- B01D53/1487—Removing organic compounds
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- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Anion exchange resin produces the handling process of waste gas, is related to production of resins technical field, comprises the following steps, and a, by the trimethylamine exhaust collection of generation and is sent to the bottom of spray column, and absorbing liquid is uniformly sprayed on spray column top；B, by step a absorb after absorbing liquid be sent to absorptive separation column, using polymeric adsorbent carry out absorb absorb night in trimethylamine；Parsed after c, resin adsorption saturation with purified water, obtain desorbed solution；D, desorbed solution is collected after carry out concentration, the trimethylamine mass concentration of concentration desorbed solution is to go to ammonification workshop after 50%, for aminating reaction；E, repeat step a steps, and the absorbing liquid after step b processing is reused in step a, and supplement new absorbing liquid.Trimethylamine of the present invention can be recycled, and recovery utilization rate is up to 95%, and pollution-free byproduct is produced, and the feature of environmental protection is good, and cost is low.
Description
Technical field
The present invention relates to production of resins technical field, and in particular to anion exchange resin produces the handling process of waste gas.
Background technology
Anion exchange resin is the ion exchange resin containing basic group in the molecule.The energy in water or polar solvent
It is swelled, there is alkalescence in water, the anion in solution can be exchanged with its hydroxide ion or nonmetallic ion.Contain hydroxyl
The resin of ion, according to the size of dissociation constant, can be divided into strong basicity, medium basic and the class of alkalescent three.Strong alkalinity anion
Contain quaternary ammonium group-N (CH in exchanger resin, mainly molecule3) 3OH resin.Weak-base anion-exchange resin, there is isophthalic two
Amine-for-aldehyde resin, melamine-guanidine formaldehyde resin etc..
Anion exchange resin is widely used in the preparation of pure water, high purity water, and wastewater treatment, the extraction of biochemical product is put
Penetrating property element is refined, tungsten, the extraction of molybdenum in antibiotic separation etc. and hydrometallurgy.For example：Treatment of Industrial Water, steam power plant's hard water is soft
Change, prepared by high purity water, prepared by desalination dealkalize water, Ion exchange resin, the field such as Industrial Wastewater Treatment.In recent years, with the moon from
Sub-exchange resin purposes scope constantly expands, and the imbalance between supply and demand of anion exchange resin becomes increasingly conspicuous, however, cloudy season exchanges tree
Fat can produce the trimethylamine waste gas of great master in process of production, not only can be to manufacturing enterprise if waste gas cannot be controlled effectively
Employee's physical and mental health cause very major injury, surrounding enviroment can also be had undesirable effect, at present the tail gas of trimethylamine on the market
Handling process cost is higher, it is impossible to accomplish effectively processing.
The content of the invention
The technical problems to be solved by the invention are that providing a kind of trimethylamine can recycle, and recycle
Height, free of contamination anion exchange resin produces the handling process of waste gas.
The technical problems to be solved by the invention are realized using following technical scheme：
Anion exchange resin produces the handling process of waste gas, it is characterised in that：Comprise the following steps,
A, by the trimethylamine exhaust collection of generation and the bottom of spray column is sent to, absorption is uniformly sprayed on spray column top
Liquid；
B, by step a absorb after absorbing liquid be sent to absorptive separation column, using polymeric adsorbent carry out absorb absorb night in
Trimethylamine；
Parsed after c, resin adsorption saturation with purified water, obtain desorbed solution；
D, desorbed solution is collected after carry out concentration, the trimethylamine mass concentration of concentration desorbed solution is to go to ammonia after 50%
Change workshop, for aminating reaction；
E, repeat step a steps, and the absorbing liquid after step b processing is reused in step a, and supplement new suction
Receive liquid.
Described absorbing liquid by weight include following components raw material, the parts by weight of water 70~80, the parts by weight of ethanol 20~30,
The parts by weight of sodium chloride 10~15 and the parts by weight of sodium hydroxide 1~3.Ethanol of the present invention, sodium chloride and sodium hydroxide can increase
Plus absorbing liquid is to the absorptivity of trimethylamine tail gas.
Described trimethylamine tail gas absorbs in spray column by three-level.
Absorbing liquid after described rapid a absorbs absorbs in absorptive separation column by two grades.
The preparation method of described polymeric adsorbent comprises the following steps,
1) by weight by 40~50 parts of dimethyl carbonate, 20~30 parts of butyl acrylate, 20~30 parts of crosslinking agent, elasticity
4~6 parts of agent, 10~18 parts of pore-foaming agent, 8~10 parts of gelatine, 2~4 parts of talcum, 6~8 parts of methyl soyate, bentonite 5~
10 parts are mixed to get single phase A；
2) by 50~60 parts of distilled water, 10~20 parts of naphtha, 3~4 parts of bodied ferric sulfate is configured to the aqueous solution and divided
Dephasing B；
3) the single phase A configured is added in dispersed phase B and is well mixed under agitation, being warming up to reaction temperature is
85~90 DEG C, the reaction time is 5~6 hours；
4) filtering is cleaned after the completion of reacting, vacuum drying obtains polymerizeing ball.
The concentration of described naphtha is 40~60%.
Described elasticator (elasticizer) includes neopelex, polyether-ether-ketone and maleic acid glycosides, and the ratio of three is 2:1:
1。
Described pore-foaming agent is rosin and normal heptane mixture, and the mixed proportion of rosin and normal heptane is 1:1.5~2.5.
The technical problems to be solved by the invention are the trimethylamine tail that will be produced in anion exchange resin production process
Gas is collected by aspiration channel and suspended hood, feeding spray tower bottom, and spray column top is uniformly sprayed absorbing liquid, inhaled by three-level
Receive, by secondary absorption, the trimethylamine in absorbing liquid is adsorbed, is equipped with absorptive separation column for absorbing liquid feeding absorptive separation column
Trimethylamine in special resin, the absorbing liquid of this process outflow is completely by resin adsorption, and absorbing liquid is then collected recycling,
Only need to every month supplement minimal amount of adsorption liquid；Parsed after resin adsorption saturation with purified water, after desorbed solution is collected, concentration
50% is reached to content；Going to workshop again is used for aminating reaction.By this technique, trimethylamine recovery utilization rate up to more than 95%,
Both cost has been saved, environment is protected again.
Specialty resins of the present invention have the gelatine in very big adsorption capacity, resin raw material, talcum and soybean to trimethylamine
Fatty acid methyl ester can not only increase mechanical strength of resin, and can improve polymeric adsorbent pore-size distribution so that even aperture distribution,
So as to more preferable adsorption capacity.The aperture of polymeric adsorbent can not only be expanded in the present invention into pore-foaming agent, make it easier to inhale
Annex III methylamine.
Elasticator (elasticizer) in the present invention can considerably increase the elasticity and toughness of polymeric adsorbent so that polymeric adsorbent is not easy
Fragmentation, adsorbance is big, and the material of absorption is not allowed easy to fall off.
The beneficial effects of the invention are as follows：Trimethylamine of the present invention can be recycled, and recovery utilization rate is up to 95%, pollution-free pair
Product is produced, and the feature of environmental protection is good, and cost is low.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Instantiation is closed, the present invention is expanded on further.
Embodiment 1
Anion exchange resin produces the handling process of waste gas,：Comprise the following steps,
A, by the trimethylamine exhaust collection of generation and the bottom of spray column is sent to, absorption is uniformly sprayed on spray column top
Liquid；
B, by step a absorb after absorbing liquid be sent to absorptive separation column, using polymeric adsorbent carry out absorb absorb night in
Trimethylamine；
Parsed after c, resin adsorption saturation with purified water, obtain desorbed solution；
D, desorbed solution is collected after carry out concentration, the trimethylamine mass concentration of concentration desorbed solution is to go to ammonia after 50%
Change workshop, for aminating reaction；
E, repeat step a steps, and the absorbing liquid after step b processing is reused in step a, and supplement new suction
Receive liquid.
Absorbing liquid includes following components raw material, the parts by weight of water 70, the parts by weight of ethanol 20, the parts by weight of sodium chloride 10 by weight
With the parts by weight of sodium hydroxide 1.
Trimethylamine tail gas absorbs in spray column by three-level.
Absorbing liquid after rapid a absorbs absorbs in absorptive separation column by two grades.
The preparation method of polymeric adsorbent comprises the following steps,
1) by weight by 40 parts of dimethyl carbonate, 20 parts of butyl acrylate, 20 parts of crosslinking agent, 4 parts of elasticator (elasticizer), pore-foaming agent
10 parts, 8 parts of gelatine, 2 parts of talcum, 6 parts of methyl soyate, 5 parts of bentonite is mixed to get single phase A；
2) by 50 parts of distilled water, 10 parts of naphtha, 3 parts of bodied ferric sulfate is configured to the aqueous solution and obtains dispersed phase B；
3) the single phase A configured is added in dispersed phase B and is well mixed under agitation, being warming up to reaction temperature is
85 DEG C, the reaction time is 5 hours；
4) filtering is cleaned after the completion of reacting, vacuum drying obtains polymerizeing ball.
The concentration of naphtha is 40%.
Elasticator (elasticizer) includes neopelex, polyether-ether-ketone and maleic acid glycosides, and the ratio of three is 2:1:1.
Pore-foaming agent is rosin and normal heptane mixture, and the mixed proportion of rosin and normal heptane is 1:1.5.
Embodiment 2
Anion exchange resin produces the handling process of waste gas, comprises the following steps,
A, by the trimethylamine exhaust collection of generation and the bottom of spray column is sent to, absorption is uniformly sprayed on spray column top
Liquid；
B, by step a absorb after absorbing liquid be sent to absorptive separation column, using polymeric adsorbent carry out absorb absorb night in
Trimethylamine；
Parsed after c, resin adsorption saturation with purified water, obtain desorbed solution；
D, desorbed solution is collected after carry out concentration, the trimethylamine mass concentration of concentration desorbed solution is to go to ammonia after 50%
Change workshop, for aminating reaction；
E, repeat step a steps, and the absorbing liquid after step b processing is reused in step a, and supplement new suction
Receive liquid.
Absorbing liquid includes following components raw material, the parts by weight of water 75, the parts by weight of ethanol 25, the parts by weight of sodium chloride 12 by weight
With the parts by weight of sodium hydroxide 2.
Trimethylamine tail gas absorbs in spray column by three-level.
Absorbing liquid after rapid a absorbs absorbs in absorptive separation column by two grades.
The preparation method of polymeric adsorbent comprises the following steps,
1) by weight by 45 parts of dimethyl carbonate, 25 parts of butyl acrylate, 25 parts of crosslinking agent, 5 parts of elasticator (elasticizer), pore-foaming agent
14 parts, 9 parts of gelatine, 3 parts of talcum, 7 parts of methyl soyate, 7 parts of bentonite is mixed to get single phase A；
2) by 55 parts of distilled water, 15 parts of naphtha, 3.5 parts of bodied ferric sulfate is configured to the aqueous solution and obtains dispersed phase B；
3) the single phase A configured is added in dispersed phase B and is well mixed under agitation, being warming up to reaction temperature is
87 DEG C, the reaction time is 5.5 hours；
4) filtering is cleaned after the completion of reacting, vacuum drying obtains polymerizeing ball.
The concentration of naphtha is 50%.
Elasticator (elasticizer) includes neopelex, polyether-ether-ketone and maleic acid glycosides, and the ratio of three is 2:1:1.
Pore-foaming agent is rosin and normal heptane mixture, and the mixed proportion of rosin and normal heptane is 1:2.
Embodiment 3
Anion exchange resin produces the handling process of waste gas, comprises the following steps,
A, by the trimethylamine exhaust collection of generation and the bottom of spray column is sent to, absorbing liquid is uniformly sprayed on spray column top；
B, by step a absorb after absorbing liquid be sent to absorptive separation column, using polymeric adsorbent carry out absorb absorb night in
Trimethylamine；
Parsed after c, resin adsorption saturation with purified water, obtain desorbed solution；
D, desorbed solution is collected after carry out concentration, the trimethylamine mass concentration of concentration desorbed solution is to go to ammonia after 50%
Change workshop, for aminating reaction；
E, repeat step a steps, and the absorbing liquid after step b processing is reused in step a, and supplement new suction
Receive liquid.
Absorbing liquid includes following components raw material, the parts by weight of water 80, the parts by weight of ethanol 30, the parts by weight of sodium chloride 15 by weight
With the parts by weight of sodium hydroxide 3.
Trimethylamine tail gas absorbs in spray column by three-level.
Absorbing liquid after rapid a absorbs absorbs in absorptive separation column by two grades.
The preparation method of polymeric adsorbent comprises the following steps,
1) by weight by 50 parts of dimethyl carbonate, 30 parts of butyl acrylate, 30 parts of crosslinking agent, 6 parts of elasticator (elasticizer), pore-foaming agent
18 parts, 10 parts of gelatine, 4 parts of talcum, 8 parts of methyl soyate, 10 parts of bentonite is mixed to get single phase A；
2) by 60 parts of distilled water, 20 parts of naphtha, 4 parts of bodied ferric sulfate is configured to the aqueous solution and obtains dispersed phase B；
3) the single phase A configured is added in dispersed phase B and is well mixed under agitation, being warming up to reaction temperature is
90 DEG C, the reaction time is 6 hours；
4) filtering is cleaned after the completion of reacting, vacuum drying obtains polymerizeing ball.
The concentration of naphtha is 60%.
Elasticator (elasticizer) includes neopelex, polyether-ether-ketone and maleic acid glycosides, and the ratio of three is 2:1:1.
Pore-foaming agent is rosin and normal heptane mixture, and the mixed proportion of rosin and normal heptane is 1:2.5.
The control experiment data such as following table made compared with common polymeric adsorbent：
The invention is by lab scale, pilot scale, and effect substantially, passes through the implementation of this technique so that anion exchange resin
Waste gas is effectively controlled in production process, meanwhile, trimethylamine circulating repetition is utilized, greatly reduce and be produced into
This, solves the green technology problem that waste gas is discharged in anion exchange resin production process.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (8)
1. anion exchange resin produces the handling process of waste gas, it is characterised in that：Comprise the following steps,
A, by the trimethylamine exhaust collection of generation and the bottom of spray column is sent to, absorbing liquid is uniformly sprayed on spray column top；
B, by step a absorb after absorbing liquid be sent to absorptive separation column, using polymeric adsorbent carry out absorb absorb night in three
Methylamine；
Parsed after c, resin adsorption saturation with purified water, obtain desorbed solution；
D, desorbed solution is collected after carry out concentration, the trimethylamine mass concentration of concentration desorbed solution is to go to ammonification car after 50%
Between, for aminating reaction；
E, repeat step a steps, and the absorbing liquid after step b processing is reused in step a, and supplement new absorption
Liquid.
2. anion exchange resin according to claim 1 produces the handling process of waste gas, it is characterised in that：Described suction
Receive liquid includes following components raw material, the parts by weight of water 70~80, the parts by weight of ethanol 20~30, the weight of sodium chloride 10~15 by weight
Part and the parts by weight of sodium hydroxide 1~3.
3. anion exchange resin according to claim 1 produces the handling process of waste gas, it is characterised in that：Described three
Methylamine tail gas absorbs in spray column by three-level.
4. anion exchange resin according to claim 1 produces the handling process of waste gas, it is characterised in that：Described is rapid
Absorbing liquid after a absorbs absorbs in absorptive separation column by two grades.
5. anion exchange resin according to claim 1 produces the handling process of waste gas, it is characterised in that：Described suction
The preparation method of attached resin comprises the following steps,
1) by weight by 40~50 parts of dimethyl carbonate, 20~30 parts of butyl acrylate, 20~30 parts of crosslinking agent, elasticator (elasticizer) 4
~6 parts, 10~18 parts of pore-foaming agent, 8~10 parts of gelatine, 2~4 parts of talcum, 6~8 parts of methyl soyate, bentonite 5~10
Part is mixed to get single phase A；
2) by 50~60 parts of distilled water, 10~20 parts of naphtha, 3~4 parts of bodied ferric sulfate is configured to the aqueous solution and obtains dispersed phase
B；
3) the single phase A configured is added in dispersed phase B and is well mixed under agitation, be warming up to reaction temperature for 85~
90 DEG C, the reaction time is 5~6 hours；
4) filtering is cleaned after the completion of reacting, vacuum drying obtains polymerizeing ball.
6. anion exchange resin according to claim 1 produces the handling process of waste gas, it is characterised in that：Described stone
The concentration of cerebrol is 40~60%.
7. anion exchange resin according to claim 1 produces the handling process of waste gas, it is characterised in that：Described bullet
Property agent include neopelex, polyether-ether-ketone and maleic acid glycosides, the ratio of three is 2:1:1.
8. anion exchange resin according to claim 1 produces the handling process of waste gas, it is characterised in that：Described cause
Hole agent is rosin and normal heptane mixture, and the mixed proportion of rosin and normal heptane is 1:1.5~2.5.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710278524.0A CN106984139A (en) | 2017-04-25 | 2017-04-25 | Anion exchange resin produces the handling process of waste gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710278524.0A CN106984139A (en) | 2017-04-25 | 2017-04-25 | Anion exchange resin produces the handling process of waste gas |
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ID=59417337
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113058382A (en) * | 2021-02-23 | 2021-07-02 | 中国科学院过程工程研究所 | Recovery device system and recovery method for effective components in tail gas |
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| CN113058382B (en) * | 2021-02-23 | 2022-06-21 | 中国科学院过程工程研究所 | Recovery device system and recovery method for effective components in tail gas |
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Application publication date: 20170728 |