CN107759825A - A kind of sewage disposal high adsorption ion exchange resin preparation method - Google Patents
A kind of sewage disposal high adsorption ion exchange resin preparation method Download PDFInfo
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- 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
- C08J9/36—After-treatment
- C08J9/40—Impregnation
- C08J9/42—Impregnation with macromolecular compounds
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- 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
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
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- 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
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3202—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the carrier, support or substrate used for impregnation or coating
- B01J20/3206—Organic carriers, supports or substrates
- B01J20/3208—Polymeric carriers, supports or substrates
- B01J20/321—Polymeric carriers, supports or substrates consisting of a polymer obtained by reactions involving only carbon to carbon unsaturated bonds
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- 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
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
- B01J20/3242—Layers with a functional group, e.g. an affinity material, a ligand, a reactant or a complexing group
- B01J20/3268—Macromolecular compounds
- B01J20/3272—Polymers obtained by reactions otherwise than involving only carbon to carbon unsaturated bonds
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- 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
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
- B01J20/3242—Layers with a functional group, e.g. an affinity material, a ligand, a reactant or a complexing group
- B01J20/3268—Macromolecular compounds
- B01J20/3272—Polymers obtained by reactions otherwise than involving only carbon to carbon unsaturated bonds
- B01J20/3274—Proteins, nucleic acids, polysaccharides, antibodies or antigens
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
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- 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
- C08J2325/06—Polystyrene
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- 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
- C08J2405/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2401/00 or C08J2403/00
- C08J2405/08—Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
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- 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
- C08J2405/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2401/00 or C08J2403/00
- C08J2405/14—Hemicellulose; Derivatives thereof
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- 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
- C08J2471/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
- C08J2471/02—Polyalkylene oxides
Abstract
The invention discloses a kind of sewage disposal high adsorption ion exchange resin preparation method, comprise the following steps：Macropore chloromethylated polystyrene resin is sent into the piperazine aqueous solution and is swelled, adds 2 ethylaminoethanols, is heated up, is stirred, is cooled, washing, modified guar is added and stirs, filter, washing, be dried to obtain pretreatment polystyrene resin；In ice-water bath, thionyl chloride is added dropwise into pretreatment polystyrene resin, adjusts temperature, is incubated, cools, washs, filtering, is sent into nitrobenzene and is swelled, add trimethylamine reaction, obtain sewage disposal high adsorption ion exchange resin.Modified guar is prepared using following technique：Chitosan, glacial acetic acid are well mixed, water is added and stirs, polyethylene glycol is added, heating stirring, heating, adds guar gum, bamboo charcoal powder stirs to obtain modified guar.
Description
Technical field
The present invention relates to ion-exchange resin technique field, more particularly to a kind of sewage disposal high adsorption ion exchange
Process for preparing resins.
Background technology
Water resource is the important substance basis of the human society survival and development.With the development of modern industry, water pollution is asked
Inscribe day heat seriously, it is very harmful to the mankind, therefore industrial wastewater treatment technology is carried out, contamination hazard is reduced, is always domestic and international
Industrial quarters and the problem of environmental administration's primary study.
The existing conventional chemical precipitation method are widely used in the processing procedure of waste water, but useless using chemical precipitation method processing
During water, substantial amounts of sludge can be produced, it is necessary to deal carefully with or dispose.Ion exchange resin treatment waste water, it can both realize in waste water
Pollutant removal, there is recyclable material therein, the sludge that chemical precipitation method is brought can be effectively avoided, with quantity of wastewater effluent
Increase, adsorption capacity and adsorption activity to ion exchange resin require high, it would be highly desirable to solve.
The content of the invention
Based on technical problem existing for background technology, the present invention proposes a kind of sewage disposal high adsorption ion exchange
Process for preparing resins, the gained ion exchange resin rate of adsorption is fast, and selectivity is high, is firmly combined between carrier, can after absorption
Elution is complete, and easily desorbs, regenerates, and can realize repeatedly, recycle.
A kind of sewage disposal proposed by the present invention high adsorption ion exchange resin preparation method, comprises the following steps：
It S1, will be swelled in the macropore chloromethylated polystyrene resin feeding piperazine aqueous solution, add 2- ethylaminoethanols, rise
Temperature, stir, cool, washing, addition modified guar, bamboo charcoal powder stir, and filter, and washing, are dried to obtain pretreatment polyphenyl
Vinyl；
S2, in ice-water bath, be added dropwise thionyl chloride into pretreatment polystyrene resin, adjust temperature, be incubated, cooling,
Washing, filtering, it is sent into nitrobenzene and is swelled, adds trimethylamine reaction, obtain sewage disposal high adsorption ion exchange resin.
Preferably, in S1, macropore chloromethylated polystyrene resin, the piperazine aqueous solution, 2- ethylaminoethanols, modified Guar
Glue, the weight ratio of bamboo charcoal powder are 60-70：180-200：2-4：100-120：5-8；The concentration of the piperazine aqueous solution is 30-34wt%.
Preferably, in S1, it is dense that 60-70 part macropore chloromethylated polystyrenes resin is sent into 180-200 parts by weight
Spend to be swelled 5-8h in the 30-34wt% piperazine aqueous solution, add 2-4 part 2- ethylaminoethanols, be warming up to 70-90 DEG C, stir 14-
20h, cool, washing, addition 100-120 parts modified guar, 5-8 part bamboo charcoal powders stir, and filter, and washing, are dried to obtain
Pre-process polystyrene resin.
Preferably, in S1, modified guar is prepared using following technique：Chitosan, glacial acetic acid are well mixed, add water
Stir, add polyethylene glycol, heating stirring, heating, add guar gum and stir to obtain modified guar.
Preferably, in the preparation technology of S1 modified guar, chitosan, glacial acetic acid, water, polyethylene glycol, guar gum
Weight ratio is 10-20：2-4：25-45：70-90：18-22.
Preferably, in S1, modified guar is prepared using following technique：By weight by 10-20 parts chitosan, 2-4 parts
Glacial acetic acid is well mixed, and is added 25-45 part water and is stirred, adds 70-90 part polyethylene glycol, is warming up to 85-90 DEG C of stirring 7-
10h, 110-120 DEG C is warming up to, adds 18-22 parts guar gum stirring 60-120min, mixing speed 720-800r/min, obtain
To modified guar.
Preferably, in S2, pretreatment polystyrene resin, thionyl chloride, nitrobenzene, the weight ratio of trimethylamine are 90-
100：4-6：200-280：9-13.
Preferably, in S2, in ice-water bath, pre-processed to 90-100 parts in polystyrene resin 4-6 is added dropwise by weight
Part thionyl chloride, adjusts the temperature to 85-95 DEG C, is incubated 4-8h, cools, and washs, filtering, molten in feeding 200-280 part nitrobenzene
Swollen 6-10h, 9-13 parts trimethylamine reaction 8-12h is added, obtains sewage disposal high adsorption ion exchange resin.
The present invention has bigger serface and high porosity, the Sewage Environment of complexity can be dealt with, suitable for sewage disposal.This
Invention will disperse between modified guar and pretreatment polystyrene resin, bamboo charcoal powder, and mutual combination degree is high, soft plasticity
Good, water-retaining property is strong, and shrinkage factor is small, and specific surface area is high, and adsorption activity is high, makes gained resin specific surface area high, aperture
It is uniformly suitable, exchange capacity is significantly improved, it is high to the adsorption activity of heavy metal ions in sewage, it is environment-friendly；And it is modified Guar
In glue, dissolve chitosan in acetic acid, the three-dimensional net structure formed with polyethylene glycol due to hydrogen bond action, not only lubricity
It is good, and preparation process it is green, it is pollution-free, without discharge.
The gained ion exchange resin rate of adsorption of the invention is fast, and selectivity is high, is firmly combined between carrier, can after absorption
Elution is complete, and easily desorbs, regenerates, and can realize repeatedly, recycle；Performance survey is carried out to gained ion exchange resin
It is fixed：Its full exchange capacity is 3.05-3.14mmol/g, and adsorption capacity reduced by only 1.22-1.85% after regenerating ten times, after processing
Water can reach drinking water standard (GB5749-2011).
Embodiment
Below, technical scheme is described in detail by specific embodiment.
Embodiment 1
A kind of sewage disposal high adsorption ion exchange resin preparation method, comprises the following steps：
It S1, will be swelled in the macropore chloromethylated polystyrene resin feeding piperazine aqueous solution, add 2- ethylaminoethanols, rise
Temperature, stir, cool, washing, addition modified guar, bamboo charcoal powder stir, and filter, and washing, are dried to obtain pretreatment polyphenyl
Vinyl；
S2, in ice-water bath, be added dropwise thionyl chloride into pretreatment polystyrene resin, adjust temperature, be incubated, cooling,
Washing, filtering, it is sent into nitrobenzene and is swelled, adds trimethylamine reaction, obtain sewage disposal high adsorption ion exchange resin.
Modified guar is prepared using following technique：Chitosan, glacial acetic acid are well mixed, water is added and stirs, add
Enter polyethylene glycol, heating stirring, heating, add guar gum and stir to obtain modified guar；
Embodiment 2
A kind of sewage disposal high adsorption ion exchange resin preparation method, comprises the following steps：
S1,60 parts of macropore chloromethylated polystyrene resins are sent into 200 parts of concentration by weight is 30wt% piperazine water
8h is swelled in solution, adds 2 parts of 2- ethylaminoethanols, is warming up to 90 DEG C, stirs 14h, is cooled, washing, adds 120 parts of modified Guars
Glue, 5 parts of bamboo charcoal powders stir, and filter, and washing, are dried to obtain pretreatment polystyrene resin；
S2, in ice-water bath, by weight to 100 parts pretreatment polystyrene resins in be added dropwise 4 parts of thionyl chlorides, regulation
Temperature is incubated 4h to 95 DEG C, cools, and washs, and filtering, is sent into 280 parts of nitrobenzene and is swelled 6h, adds 13 parts of trimethylamine reactions
8h, obtain sewage disposal high adsorption ion exchange resin.
Embodiment 3
A kind of sewage disposal high adsorption ion exchange resin preparation method, comprises the following steps：
S1,70 parts of macropore chloromethylated polystyrene resins are sent into 180 parts of concentration by weight is 34wt% piperazine water
5h is swelled in solution, adds 4 parts of 2- ethylaminoethanols, is warming up to 70 DEG C, stirs 20h, is cooled, washing, adds 100 parts of modified Guars
Glue, 8 parts of bamboo charcoal powders stir, and filter, and washing, are dried to obtain pretreatment polystyrene resin；
S2, in ice-water bath, by weight to 90 parts pretreatment polystyrene resins in be added dropwise 6 parts of thionyl chlorides, regulation
Temperature is incubated 8h to 85 DEG C, cools, and washs, and filtering, is sent into 200 parts of nitrobenzene and is swelled 10h, adds 9 parts of trimethylamine reactions
12h, obtain sewage disposal high adsorption ion exchange resin.
Embodiment 4
A kind of sewage disposal high adsorption ion exchange resin preparation method, comprises the following steps：
S1,62 parts of macropore chloromethylated polystyrene resins are sent into 195 parts of concentration by weight is 31wt% piperazine water
7h is swelled in solution, adds 2.5 parts of 2- ethylaminoethanols, is warming up to 85 DEG C, stirs 16h, is cooled, washing, adds 115 portions of modified melons
That glue, 6 parts of bamboo charcoal powders stir, and filter, and washing, are dried to obtain pretreatment polystyrene resin；
Modified guar is prepared using following technique：10 parts of chitosans, 4 parts of glacial acetic acids are well mixed by weight, added
Enter 25 parts of water to stir, add 90 parts of polyethylene glycol, be warming up to 85 DEG C of stirring 10h, be warming up to 110 DEG C, add 22 parts of Guars
Glue stirs 60min, mixing speed 720r/min, obtains modified guar；
S2, in ice-water bath, by weight to 98 parts pretreatment polystyrene resins in be added dropwise 4.5 parts of thionyl chlorides, adjust
Temperature is saved to 92 DEG C, is incubated 5h, is cooled, is washed, filtering, is sent into 260 parts of nitrobenzene and is swelled 7h, adds 12 parts of trimethylamine reactions
9h, obtain sewage disposal high adsorption ion exchange resin.
Embodiment 5
A kind of sewage disposal high adsorption ion exchange resin preparation method, comprises the following steps：
S1,65 parts of macropore chloromethylated polystyrene resins are sent into 190 parts of concentration by weight is 32wt% piperazine water
6.5h is swelled in solution, adds 3 parts of 2- ethylaminoethanols, is warming up to 80 DEG C, stirs 17h, is cooled, washing, adds 110 portions of modified melons
That glue, 6.5 parts of bamboo charcoal powders stir, and filter, and washing, are dried to obtain pretreatment polystyrene resin；
Modified guar is prepared using following technique：20 parts of chitosans, 2 parts of glacial acetic acids are well mixed by weight, added
Enter 45 parts of water to stir, add 70 parts of polyethylene glycol, be warming up to 90 DEG C of stirring 7h, be warming up to 120 DEG C, add 18 parts of guar gums
120min is stirred, mixing speed 800r/min, obtains modified guar；
S2, in ice-water bath, by weight to 95 parts pretreatment polystyrene resins in be added dropwise 5 parts of thionyl chlorides, regulation
Temperature is incubated 6h to 90 DEG C, cools, and washs, and filtering, is sent into 240 parts of nitrobenzene and is swelled 8h, adds 11 parts of trimethylamine reactions
10h, obtain sewage disposal high adsorption ion exchange resin.
Embodiment 6
A kind of sewage disposal high adsorption ion exchange resin preparation method, comprises the following steps：
S1,68 parts of macropore chloromethylated polystyrene resins are sent into 185 parts of concentration by weight is 33wt% piperazine water
6h is swelled in solution, adds 3.5 parts of 2- ethylaminoethanols, is warming up to 75 DEG C, stirs 18h, is cooled, washing, adds 105 portions of modified melons
That glue, 7 parts of bamboo charcoal powders stir, and filter, and washing, are dried to obtain pretreatment polystyrene resin；
Modified guar is prepared using following technique：16 parts of chitosans, 3.2 parts of glacial acetic acids are well mixed by weight,
Add 42 parts of water to stir, add 82 parts of polyethylene glycol, be warming up to 88 DEG C of stirring 8h, be warming up to 114 DEG C, add 20 parts of Guars
Glue stirs 115min, mixing speed 765r/min, obtains modified guar；
S2, in ice-water bath, by weight to 92 parts pretreatment polystyrene resins in be added dropwise 5.5 parts of thionyl chlorides, adjust
Temperature is saved to 88 DEG C, is incubated 7h, is cooled, is washed, filtering, is sent into 220 parts of nitrobenzene and is swelled 9h, adds 10 parts of trimethylamine reactions
11h, obtain sewage disposal high adsorption ion exchange resin.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (8)
1. a kind of sewage disposal high adsorption ion exchange resin preparation method, it is characterised in that comprise the following steps：
It S1, will be swelled in the macropore chloromethylated polystyrene resin feeding piperazine aqueous solution, add 2- ethylaminoethanols, heating, stir
Mix, cool, washing, addition modified guar, bamboo charcoal powder stir, and filter, washing, are dried to obtain pretreatment polystyrene tree
Fat；
S2, in ice-water bath, be added dropwise thionyl chloride into pretreatment polystyrene resin, adjust temperature, be incubated, cool, washing,
Filtering, it is sent into nitrobenzene and is swelled, adds trimethylamine reaction, obtain sewage disposal high adsorption ion exchange resin.
2. sewage disposal high adsorption ion exchange resin preparation method according to claim 1, it is characterised in that S1
In, macropore chloromethylated polystyrene resin, the piperazine aqueous solution, 2- ethylaminoethanols, modified guar, the weight ratio of bamboo charcoal powder are
60-70：180-200：2-4：100-120：5-8；The concentration of the piperazine aqueous solution is 30-34wt%.
3. sewage disposal according to claim 1 or claim 2 high adsorption ion exchange resin preparation method, it is characterised in that
It is 30-34wt% piperazines by weight by 60-70 part macropore chloromethylated polystyrenes resin feeding 180-200 parts concentration in S1
5-8h is swelled in the piperazine aqueous solution, adds 2-4 part 2- ethylaminoethanols, is warming up to 70-90 DEG C, stirs 14-20h, is cooled, washing, is added
Enter 100-120 parts modified guar, 5-8 part bamboo charcoal powders stir, filter, washing, be dried to obtain pretreatment polystyrene tree
Fat.
4. according to any one of claim 1-3 sewage disposals high adsorption ion exchange resin preparation method, its feature
It is, in S1, modified guar is prepared using following technique：Chitosan, glacial acetic acid are well mixed, water is added and stirs,
Polyethylene glycol is added, heating stirring, heating, guar gum is added and stirs to obtain modified guar.
5. according to any one of claim 1-4 sewage disposals high adsorption ion exchange resin preparation method, its feature
It is, in the preparation technology of S1 modified guar, chitosan, glacial acetic acid, water, polyethylene glycol, the weight ratio of guar gum are 10-
20：2-4：25-45：70-90：18-22.
6. according to any one of claim 1-5 sewage disposals high adsorption ion exchange resin preparation method, its feature
It is, in S1, modified guar is prepared using following technique：10-20 parts chitosan, 2-4 parts glacial acetic acid are mixed by weight
Uniformly, add 25-45 part water to stir, add 70-90 part polyethylene glycol, be warming up to 85-90 DEG C of stirring 7-10h, be warming up to
110-120 DEG C, 18-22 parts guar gum stirring 60-120min is added, mixing speed 720-800r/min, obtains being modified Guar
Glue.
7. according to any one of claim 1-6 sewage disposals high adsorption ion exchange resin preparation method, its feature
It is, in S2, pretreatment polystyrene resin, thionyl chloride, nitrobenzene, the weight ratio of trimethylamine are 90-100：4-6：200-
280：9-13.
8. according to any one of claim 1-7 sewage disposals high adsorption ion exchange resin preparation method, its feature
It is, in S2, in ice-water bath, is pre-processed to 90-100 parts 4-6 part thionyl chlorides are added dropwise in polystyrene resin by weight,
85-95 DEG C is adjusted the temperature to, is incubated 4-8h, is cooled, is washed, filtering, is sent into 200-280 part nitrobenzene and is swelled 6-10h, is added
9-13 parts trimethylamine reacts 8-12h, obtains sewage disposal high adsorption ion exchange resin.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111057162A (en) * | 2019-12-23 | 2020-04-24 | 山东广浦生物科技有限公司 | Modified guar gum and preparation method and application thereof |
| CN111269340A (en) * | 2020-03-31 | 2020-06-12 | 台州学院 | Chelate resin with 1-methanesulfonyl piperazine as ligand and preparation method and application thereof |
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| CN111269340A (en) * | 2020-03-31 | 2020-06-12 | 台州学院 | Chelate resin with 1-methanesulfonyl piperazine as ligand and preparation method and application thereof |
| CN111269340B (en) * | 2020-03-31 | 2020-12-29 | 台州学院 | Chelate resin with 1-methanesulfonyl piperazine as ligand and preparation method and application thereof |
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