CN109180850A - A kind of composite pore-forming is preparing the application in macroreticular ion exchange resin - Google Patents
A kind of composite pore-forming is preparing the application in macroreticular ion exchange resin Download PDFInfo
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- CN109180850A CN109180850A CN201811097907.9A CN201811097907A CN109180850A CN 109180850 A CN109180850 A CN 109180850A CN 201811097907 A CN201811097907 A CN 201811097907A CN 109180850 A CN109180850 A CN 109180850A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F212/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
- C08F212/02—Monomers containing only one unsaturated aliphatic radical
- C08F212/04—Monomers containing only one unsaturated aliphatic radical containing one ring
- C08F212/06—Hydrocarbons
- C08F212/08—Styrene
-
- 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
- B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/08—Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/16—Organic material
- B01J39/18—Macromolecular compounds
- B01J39/20—Macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/26—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- C02F2001/425—Treatment of water, waste water, or sewage by ion-exchange using cation exchangers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2201/00—Foams characterised by the foaming process
- C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
- C08J2201/042—Elimination of an organic solid phase
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2325/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
- C08J2325/02—Homopolymers or copolymers of hydrocarbons
- C08J2325/04—Homopolymers or copolymers of styrene
- C08J2325/08—Copolymers of styrene
Abstract
The invention belongs to ion-exchange resin technique field, it is related to a kind of composite pore-forming and is preparing the application in macroreticular ion exchange resin；(1) softened water, Nacl, methylene blue and polyvinyl alcohol water solution are mixed, stirring, heating obtains water phase；(2) it prepares organic phase: styrene and composite pore-forming is mixed, composite pore-forming is that 3:1 is compounded with mass ratio by solid wax and polystyrene resin；Heating, stirring and dissolving are pumped into divinylbenzene, and initiator is added, and stirring obtains organic phase；(3) organic phase is mixed with water；Heating reaction, filters off liquid；It is added after toluene is extracted, filtered and adds water, cleaning, heated-air drying；Sulfuric acid is added, heating reaction is cooling, is diluted with water, washes, made the transition with alkali to obtain the final product；The present invention reduces the dosage of pore-foaming agent using composite pore-forming, by the way that macromolecule linear polymer is added, so that resin increases a plurality of line style duct, enhances the mechanical strength of resin, simple production process, environment friendly and pollution-free.
Description
Technical field
The invention belongs to ion-exchange resin technique fields, and in particular to a kind of composite pore-forming is preparing macroporous type ion
Application in exchanger resin.
Background technique
Macroreticular ion exchange resin is widely used in water process, and the removal of various zwitterions is adsorbed micro organic in water
Object is poisoned from organic matter and is polluted to protect subsequent resin bed, suitable for the dephenolize of waste water, deoils, removes trinitro- water
Toluene and waste water containing chloro pesticide, various printing and dyeing, the purification of paper waste, the decoloration of liquid glucose, the purification of gas, it can also be used to natural
The concentration such as product, biological products, the separating-purifying of organic compound, radioactive element, separation, can be also used for pharmaceutical industry,
As medical drug, enzyme, pesticide, chemical reaction catalyst carrier.
There is macroreticular ion exchange resin adsorption function to adsorb the pore structure of resin unlike other adsorbents
And its performance indexes can be adjusted in very large range, can satisfy the actual requirement of a variety of application fields, it can
Realize the enrichment, separation and recycling to useless Organic substance in water；Influence of the structure of resin for its absorption property is huge, influences to inhale
The structure of attached resin mainly includes pore-foaming agent type and the factors such as dosage and the degree of cross linking in synthesis process.
In the preparation of macroporous ion-exchange resin, monomer, pore-foaming agent, initiator mutually it is miscible together, polymerize start when, just
Understand some active nuclei heart to generate in pore-foaming agent.If pore-foaming agent used is good solvent to polymer, also instant
Swollen dose, then gradually using up with monomer, the growth of copolymer are limited in a solvent more and more, the polymer chain link of generation
Swelling can be upheld in a solvent, such as toluene.With gradually rising for polymerization temperature, the copolymer of crosslinking gradually curing molding makes
Occurs the separation of phase between polymer and solvent, final solvent, which is extracted, to be steamed, and makes to leave porous sky on polymer backbone
The heart also necessarily reduces entwining for chain in this way；Due to the reduction entwined, the loose of structure is necessarily caused, this must just increase friendship
Join the dosage of agent to compensate.The skeleton of existence is copolymerized in good solvent, since the separation of phase is later, chain stretches in polymerization process
It opens and is easier, the aperture of products therefrom is smaller, and specific surface is larger.
If pore-foaming agent used is the solvent of monomer, and is precipitating reagent to condensate, such as 200# gasoline, solid paraffin.?
When polymerization starts, greatly still carry out in a solvent, but after chain link increase, by precipitating reagent polar functionalities gene
Repel, so that it is gradually crispaturaed, the separation of phase occur.Condensate in precipitating reagent just by being settled out.In such polymerization progress, volume
The chain link being precipitated out that contracts touches together, and just adhered to one another, the condensate bonded in the growth of chain is stirring
Under, in the aqueous systems with dispersing agent, there is superfine small ball to be bonded agglomeratingly as the botryoidal microspheres of cluster.In this way
Obtained small ball, aperture is larger, and specific surface is smaller.
Based on current single pore-foaming agent pore, one kind is added in solid paraffin in the contradiction between aperture and specific surface area
The linear polymer polystyrene resin of larger molecular weight is as composite pore-forming.By to its dosage and polymer molecular weight come
Cell size and specific surface are adjusted, more excellent performance of ion exchange resin is obtained.
Summary of the invention
In order to overcome single pore-foaming agent pore, pore-foaming agent dosage is big, and due to the size of various single pore-foaming agent molecular weight,
Caused pore size is different, relatively more simple, and easy collapse hole, the less defect in duct.Polyphenyl is added in the present invention in solid paraffin
Vinyl prepares macroreticular ion exchange resin as composite pore-forming, since polystyrene molecular weight is larger, and is line
Type, in macromolecular scaffold after extracting, polymer will increase a plurality of line style hole, and the machinery for considerably increasing resin is strong
Degree, exchange capacity.
Specific step is as follows:
(1) it prepares water phase: softened water is added in reaction kettle, then, Nacl is added, methine is added in stirring and dissolving
Indigo plant develops the color, and adds polyvinyl alcohol water solution, stirring, spare after heating；
(2) it prepares organic phase: taking styrene that batching kettle is added, then, composite pore-forming is added, composite pore-forming is by solid wax
It is compounded with polystyrene resin with mass ratio for 3:1；60 DEG C of stirring 30min are warming up to, after dissolution, divinylbenzene is added,
And initiator is added, and it stirs, obtains organic phase, it is spare；Wherein, the mass ratio of styrene, divinylbenzene and initiator be 19~
20:3~4:0.2~0.3；Composite pore-forming quality: the gross mass of styrene and divinylbenzene is 0.13~0.18:1.
(3) converging operation: in organic water phase for being added to step (1) preparation that step (2) are prepared, obtaining mixed liquor,
Mixed liquor is warming up to 72~78 DEG C, maintains reaction 2h, then be warming up to 85 DEG C, reaction 1h is maintained, is finally warming up to 93~97 DEG C,
It maintains 5~6h of reaction that then mixture is evacuated in extraction kettle, filters off reaction liquid, Archon after being polymerize；Toward extraction kettle
Middle addition toluene is warming up to 77~85 DEG C, after stirring 45min, drains toluene in kettle；Repetitive operation is three times；
(4) Archon after polymerization is added water to submerge into extraction kettle after toluene filter to the greatest extent in kettle to be extracted, open steam valve and be warming up to
It 90~105 DEG C, controls pressure in kettle and is no more than 0.02Mpa, reaction 5h is cleaned after reaction；Then hot air drying is carried out
It is dry, obtain semi-finished product resin；
(5) prepared by resin: the semi-finished product resin that sulfuric acid and step (4) obtain is added and is mixed, 132 DEG C of maintenances are warming up to
6h, it is cooling, resin is obtained, is slowly diluted with water, alkali is added to make the transition, obtains macroporous type strongly acidic styrene's cation exchange tree
Rouge.
Softened water described in step (1), Nacl, methylene blue and polyvinyl alcohol water solution mass ratio be 550~
600:25~30:0.001~0.002:15~18.
The temperature of heating described in step (1) is 55~60 DEG C.
Initiator described in step (2) is azodiisobutyronitrile, in ammonium persulfate, potassium peroxydisulfate, benzoyl peroxide
The mixing of any one or more than one.
Toluene described in step (3) with polymerize after Archon mass ratio be 4~5:1.
The temperature of heated-air drying described in step (4) is 70~80 DEG C of 4~6h of time.
The mass ratio of sulfuric acid described in step (5) and semi-finished product resin is 5.5~6.0:1.
In being diluted with water described in step (5), the mass ratio of water and resin is 4~6:1.
Alkali described in step (5) plus in alkali transition is the liquid alkaline of mass fraction 30%；The mass ratio of resin and liquid alkaline is
3.5~4.2:1
The invention has the following beneficial effects:
(1) polystyrene resin is added as composite pore-forming, due to polyphenyl second in the present invention in pore-foaming agent solid paraffin
Olefine resin is linear polymer (general molecular weight is 10~500,000), it and organic matter dissolve each other jointly, forms high molecular polymerization bone
Frame.During making large-pore white balls used polymerization process, both compounds and monomer polymerization, formed after secured polymeric skeleton ball through good
Swelling solvent swell, extraction, obtain porous and line style aperture polymerization sphere, and this sphere more has its special superiority energy.
(2) use of pore-foaming agent can be greatly reduced using solid wax and polystyrene resin as composite pore-forming by the present invention
Amount, considerably increases the mechanical strength of resin, exchange capacity.
(3) resin that the present invention is produced using solid wax and polystyrene resin as composite pore-forming, antifouling property
By force, exchange velocity is fast, selectivity is high, stability is big, high catalytic efficiency, regeneration frequency are low, long service life.
Specific embodiment
A specific embodiment of the invention will be described below.
Embodiment 1:
200# gasoline is used to prepare macroporous type strongly acidic styrene type cation exchange resin, synthesis step as pore-foaming agent
Rapid following (following proportion is calculated by 1t sold resin):
(1) it prepares aqueous phase substance: reaction kettle is added in the softened water of 550Kg, adds Nacl 25Kg, it is completely molten to it
Solution is added the polyvinyl alcohol water solution 15Kg of methylene blue 1g and 1788 (4%) aqueous solutions, is thoroughly mixed, is warming up to 58
It is DEG C spare；
(2) it prepares organic phase: taking styrene 190Kg that batching kettle is added, be pumped into divinylbenzene 40Kg, 200# gasoline 95Kg,
And initiator benzoyl peroxide 2.5Kg is added, and 5min is stirred, organic phase is obtained, it is spare；
(3) converging operation: prepared organic phase is put into water phase, and 72 DEG C are warming up to after being sufficiently mixed, and maintains reaction
2h, then 85 DEG C of maintenance reaction 1h are warming up to, 93 DEG C of maintenance reaction 5h are finally warming up to, material is evacuated to distillation still with dnockout pumps
In, filter off reaction solution, Archon after being polymerize.
(4) hot water is added into distillation still and distills 4h, be subject to and check that then hot water cleans without 200# gasoline in distillate
Once, cold water is primary, heated-air drying, and drying temperature is 75 DEG C, time 5h.
(5) prepared by resin: sulfuric acid and semi-finished product resin being put into reaction kettle with the ratio of 5.5:1, are warming up to 132 DEG C of maintenances
6h, it is cooling, it is slowly diluted with water, dilution water and resin quality ratio are 4:1, add the liquid alkaline that mass fraction is 30% to make the transition, tree
The mass ratio of rouge and liquid alkaline is 3.5:1, obtains macroporous type strongly acidic styrene type cation exchange resin.
Embodiment 2:
Solid wax is used to prepare macroporous type strongly acidic styrene type cation exchange resin as pore-foaming agent, synthesis step is such as
Under (following proportion calculated by 1t sold resin):
(1) it prepares aqueous phase substance: reaction kettle is added in the softened water of 550Kg, adds Nacl 25Kg, it is completely molten to it
Solution is added the polyvinyl alcohol water solution 15Kg of methylene blue 1g and 1788 (4%) aqueous solutions, is thoroughly mixed, is warming up to 58
It is DEG C spare；
(2) it prepares organic phase: taking styrene 190Kg that batching kettle is added, add solid paraffin 69Kg, be warming up to 60 DEG C and stir
20min is mixed, after completely dissolution to it, divinylbenzene 40Kg is pumped into, and initiator benzoyl peroxide 2.5Kg is added, stirs
5min obtains organic phase, spare；
(3) converging operation: prepared organic phase is put into water phase, and 78 DEG C are warming up to after being sufficiently mixed, and maintains reaction
2h, then 85 DEG C of maintenance reaction 1h are warming up to, 95 DEG C of maintenance reaction 5h are finally warming up to, material is evacuated to extraction kettle with dnockout pumps
In, reaction solution is filtered off, Archon after being polymerize is spare；Toluene is added into extraction kettle, with polymerize after Archon mass ratio be 4:1,
80 DEG C are warming up to, after stirring 45min, drains toluene in kettle, continuous operation is three times.
(4) it is directly added into extraction kettle with hot water after toluene filter to the greatest extent in kettle to be extracted and submerges sphere, open steam valve heating
To 100 DEG C, pressure is in 0.02Mpa or less 5h in control kettle, after reaction, first primary with 5Kg detergent wash, reusable heat
Three times, cold water is primary for washing；Heated-air drying, drying temperature are 75 DEG C, time 5h；
(5) prepared by resin: sulfuric acid and semi-finished product resin being put into reaction kettle with the ratio of 5.5:1, are warming up to 132 DEG C of maintenances
6h, it is cooling, it is slowly diluted with water, dilution water and resin quality ratio are 4:1, add the liquid alkaline that mass fraction is 30% to make the transition, tree
The mass ratio of rouge and liquid alkaline is 3.5:1, obtains macroporous type strongly acidic styrene type cation exchange resin.
Embodiment 3:
Using composite pore-forming to consolidate wax and polystyrene resin to prepare macroporous type strongly acidic styrene as pore-foaming agent is sun
Ion exchange resin, synthesis step are following (following proportion is calculated by 1t sold resin):
(1) it prepares aqueous phase substance: reaction kettle is added in the softened water of 550Kg, adds Nacl 25Kg, it is completely molten to it
Solution is added the polyvinyl alcohol water solution 15Kg of methylene blue 1g and 1788 (4%) aqueous solutions, is thoroughly mixed, is warming up to 58
It is DEG C spare；
(2) it prepares organic phase: taking styrene 190Kg that batching kettle is added, composite pore-forming 40Kg is added, is warming up to 60 DEG C and stirs
20min is mixed, after completely dissolution to it, divinylbenzene 40Kg is pumped into, and initiator benzoyl peroxide 2.5Kg is added, stirs
5min obtains organic phase, spare；
(3) converging operation: prepared organic phase is put into water phase, and 78 DEG C are warming up to after being sufficiently mixed, and maintains reaction
2h, then 85 DEG C of maintenance reaction 1h are warming up to, 97 DEG C of maintenance reaction 6h are finally warming up to, material is evacuated to extraction kettle with dnockout pumps
In, reaction solution is filtered off, Archon after being polymerize is spare；Toluene is added into extraction kettle, with polymerize after Archon mass ratio be 5:1,
85 DEG C are warming up to, after stirring 45min, drains toluene in kettle, continuous operation is three times；
(4) it is directly added into extraction kettle with hot water after toluene filter to the greatest extent in kettle to be extracted and submerges sphere, open steam valve heating
To 105 DEG C, pressure is in 0.02Mpa or less 5h in control kettle, after reaction, first primary with 5Kg detergent wash, reusable heat
Three times, cold water is primary for washing；Heated-air drying, drying temperature are 75 DEG C, time 5h；
(5) prepared by resin: sulfuric acid and semi-finished product resin being put into reaction kettle with the ratio of 5.5:1, are warming up to 132 DEG C of maintenances
6h, it is cooling, it is slowly diluted with water, dilution water and resin quality ratio are 4:1, add the liquid alkaline that mass fraction is 30% to make the transition, tree
The mass ratio of rouge and liquid alkaline is 3.5:1, obtains macroporous type strongly acidic styrene type cation exchange resin.
The physical and chemical index of the macroporous type strongly acidic styrene type cation exchange resin of 1 embodiment 1,2,3 of table production synthesis
By table 1 it is found that the present invention uses the macropore strong acid polystyrene cation exchange tree of composite pore-forming preparation
Rouge indices comply with standard；And with embodiment 1, the comparison of embodiment 2 it is found that strong using the macropore of composite pore-forming preparation
Acid styrene type cation exchange resin indices are better than the tree using the single pore-foaming agent preparation such as gasoline, solid paraffin
Rouge；The design is rationally simple, low in cost, practical, and safety and environmental protection has a extensive future.
Illustrate: above embodiments are only to illustrate the present invention and not limit the technical scheme described by the invention；Therefore,
Although this specification is referring to above-mentioned each embodiment, the present invention has been described in detail, the common skill of this field
Art personnel should be appreciated that and still can modify to the present invention or equivalent replacement；And all do not depart from spirit of the invention and
The technical solution and its improvement of range, should all cover in scope of the presently claimed invention.
Claims (10)
1. a kind of composite pore-forming is preparing the application in macroreticular ion exchange resin, which is characterized in that steps are as follows:
(1) it prepares water phase: softened water being mixed with Nacl, stirring and dissolving, methylene blue is added, it is water-soluble to add polyvinyl alcohol
Liquid, stirring are spare after heating；
(2) it prepares organic phase: composite pore-forming being added in styrene, composite pore-forming is by solid wax and polystyrene resin with matter
Amount is than being that 3:1 is compounded；60 DEG C of stirring 30min are warming up to, after dissolution, divinylbenzene is added, and initiator is added, stirs,
Organic phase is obtained, it is spare；Wherein, the mass ratio of styrene, divinylbenzene and initiator is 19~20:3~4:0.2~0.3；It is multiple
Close pore-foaming agent quality: the gross mass of styrene and divinylbenzene is 0.13~0.18:1；
(3) converging operation: in organic water phase for being added to step (1) preparation that step (2) are prepared, stirring to get mixed liquor,
Mixed liquor is warming up to 72 ~ 78 DEG C, maintains 2 h of reaction, then be warming up to 85 DEG C, reaction 1h is maintained, is finally warming up to 93 ~ 97 DEG C,
It maintains 5 ~ 6 h of reaction then to go in extraction kettle, filters off reaction liquid, Archon after being polymerize；First is added into extraction kettle
Benzene is warming up to 77 ~ 85 DEG C, after stirring 45 min, drains toluene in kettle, repetitive operation is three times；
(4) the polymerization sphere that step (3) obtains is placed in 65~75 DEG C of hot water and is submerged, stirred, be warming up to 100~105 DEG C,
Control is blown pressure in oily kettle and is reacted, after reaction；Heated-air drying obtains semi-finished product resin；
(5) the semi-finished product resin that addition sulfuric acid and step (4) obtain is mixed, and is warming up to 132 DEG C of maintenance 6h, cooling, is obtained
Resin is slowly diluted with water, and alkali is added to make the transition, and obtains macroporous type strongly acidic styrene type cation exchange resin.
2. a kind of composite pore-forming according to claim 1 is preparing the application in macroreticular ion exchange resin, special
Sign is, softened water described in step (1), Nacl, methylene blue and polyvinyl alcohol water solution mass ratio be 550~600:
25~30:0.001~0.002:15~18.
3. a kind of composite pore-forming according to claim 1 is preparing the application in macroreticular ion exchange resin, special
Sign is that the temperature of heating described in step (1) is 55 ~ 60 DEG C.
4. a kind of composite pore-forming according to claim 1 is preparing the application in macroreticular ion exchange resin, special
Sign is, initiator described in step (2) is azodiisobutyronitrile, ammonium persulfate, potassium peroxydisulfate, appointing in benzoyl peroxide
The one or more than one kinds of mixing of meaning.
5. a kind of composite pore-forming according to claim 1 is preparing the application in macroreticular ion exchange resin, special
Sign is, toluene described in step (3) with polymerize after the mass ratio of Archon be 4~5:1.
6. a kind of composite pore-forming according to claim 1 is preparing the application in macroreticular ion exchange resin, special
Sign is that pressure is no more than 0.02Mpa, reaction time 5h in control kettle described in step (4).
7. a kind of composite pore-forming according to claim 1 is preparing the application in macroreticular ion exchange resin, special
Sign is that the temperature of heated-air drying described in step (4) is 70~80 DEG C, 4 ~ 6h of time.
8. a kind of composite pore-forming according to claim 1 is preparing the application in macroreticular ion exchange resin, special
Sign is that the mass ratio of sulfuric acid described in step (5) and semi-finished product resin is 5.5~6.0:1.
9. a kind of composite pore-forming according to claim 1 is preparing the application in macroreticular ion exchange resin, special
Sign is, is diluted with water described in step (5), and the mass ratio of water and resin is 4~6:1.
10. a kind of composite pore-forming according to claim 1 is preparing the application in macroreticular ion exchange resin, special
Sign is that the alkali described in step (5) plus in alkali transition is the liquid alkaline of mass fraction 30%；The mass ratio of the resin and liquid alkaline
For 3.5 ~ 4.2:1.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111848872A (en) * | 2020-06-16 | 2020-10-30 | 浙江海洋大学 | Preparation method of ion exchange resin for separating medical protein |
| CN112614966A (en) * | 2020-12-11 | 2021-04-06 | 联动天翼新能源有限公司 | Preparation method of porous silicon negative plate, porous silicon negative plate and lithium battery |
| CN116333204A (en) * | 2023-05-24 | 2023-06-27 | 山东德川化工科技有限责任公司 | Preparation method of nuclear-grade cation exchange resin |
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| 钱庭宝等: "《吸附树脂及其应用》", 31 October 1990, 化学工业出版社 * |
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| CN112614966A (en) * | 2020-12-11 | 2021-04-06 | 联动天翼新能源有限公司 | Preparation method of porous silicon negative plate, porous silicon negative plate and lithium battery |
| CN112614966B (en) * | 2020-12-11 | 2022-04-19 | 联动天翼新能源有限公司 | Preparation method of porous silicon negative plate, porous silicon negative plate and lithium battery |
| CN116333204A (en) * | 2023-05-24 | 2023-06-27 | 山东德川化工科技有限责任公司 | Preparation method of nuclear-grade cation exchange resin |
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