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Method for preparing novel ion exchange membrane

A technology of ion exchange membrane and ion exchange resin, which is applied in the field of preparation of new ion exchange membranes, can solve the problems of unsatisfactory anti-pollution and electrical conductivity, high energy consumption, etc., achieve excellent electrical conductivity and hinder the penetration of heavy metal ions, and solve the problem of distribution Inhomogeneous, strong stability effect

Inactive Publication Date: 2015-11-11
JIANGSU HUAHUI ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the bipolar membrane simply synthesizes two membranes into one ion exchange membrane, which has relatively high energy consumption and cannot meet the current development needs in terms of pollution resistance and conductivity.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The ion exchange resin and the monomer solution are mixed in the irradiation tube, and the formula weight ratio of the ion exchange resin and the monomer solution is 1:2-4, and the irradiation tube is put into 60 The Co irradiation chamber was carried out solution treatment, the radiation activity was 5000Ci, the dose rate was 30Gy / min, and the formula of the monomer solution was N,N-dimethylaminoethyl methacrylate 20, styrene 30, dimethacrylate Methylformamide 10, dimethyl sulfoxide 8, methylpyrrolidone 3;

[0019] Put the mixed resin and monomer solution into a Soxhlet extractor, wash with toluene for 8 hours, vacuum dry for 24 hours, and control the temperature to be 80-95°C. After the reaction, the resin and monomer solution separate out polymer powder;

[0020] The resulting polymer powder is blended into the nitrogen methyl pyrrolidone to form a 10wt% homogeneous solution;

[0021] Spread the homogeneous solution on the glass plate, put the glass plate into the d...

Embodiment 2

[0028] The ion exchange resin and the monomer solution are mixed in the irradiation tube, and the formula weight ratio of the ion exchange resin and the monomer solution is 1:2-4, and the irradiation tube is put into 60 The Co irradiation chamber was carried out solution treatment, the radiation activity was 5000Ci, the dose rate was 30Gy / min, and the formula of the monomer solution was N,N-dimethylaminoethyl methacrylate 50, styrene 60, dimethacrylate Methylformamide 18, dimethyl sulfoxide 15, methylpyrrolidone 7;

[0029] Put the mixed resin and monomer solution into a Soxhlet extractor, wash with toluene for 8 hours, vacuum dry for 24 hours, and control the temperature to be 80-95°C. After the reaction, the resin and monomer solution separate out polymer powder;

[0030] The resulting polymer powder is blended into the nitrogen methyl pyrrolidone to form a 10wt% homogeneous solution;

[0031] Spread the homogeneous solution on the glass plate, put the glass plate into the ...

Embodiment 3

[0038] The ion exchange resin and the monomer solution are mixed in the irradiation tube, and the formula weight ratio of the ion exchange resin and the monomer solution is 1:2-4, and the irradiation tube is put into 60The Co irradiation chamber was carried out solution treatment, the radiation activity was 5000Ci, the dose rate was 30Gy / min, and the formula of the monomer solution was N,N-dimethylaminoethyl methacrylate 30, styrene 50, dimethacrylate Methylformamide 15, dimethyl sulfoxide 12, methylpyrrolidone 5;

[0039] Put the mixed resin and monomer solution into a Soxhlet extractor, wash with toluene for 8 hours, vacuum dry for 24 hours, and control the temperature to be 80-95°C. After the reaction, the resin and monomer solution separate out polymer powder;

[0040] The resulting polymer powder is blended into the nitrogen methyl pyrrolidone to form a 10wt% homogeneous solution;

[0041] Spread the homogeneous solution on the glass plate, put the glass plate into the d...

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Abstract

The invention discloses a method for preparing a novel ion exchange membrane. The method comprises the following step: mixing ion exchange resin with a certain molar ratio of monomer solution in an irradiation tube, wherein the activity of irradiation is 5000Ci, the dosage rate is 30Gy / min, and the monomer solution is prepared from the raw materials in parts by weight: 20-50 parts of N,N-dimethylamido ethyl methacrylate, 30-60 parts of styrene, 10-18 parts of dimethyl formamide, 8-15 parts of dimethyl sulfoxide and 3-7 parts of methyl pyrrolidone. According to the method, the ion exchange membrane produced by the preparation process integrates dual characters of anionic membranes and cationic membranes, has very good electrical conductivity and use performance and particularly achieves a good effect in the aspect of pollution resistance; and due to the adoption of special processes, the current efficiency is increased, the energy consumption is lowered, the operation and maintenance costs during use are low, and the cleaning cycle for a membrane reactor is prolonged.

Description

technical field [0001] The invention relates to a preparation method of an ion membrane, in particular to a preparation method of a novel ion exchange membrane. Background technique [0002] The bipolar membrane is usually prepared by an anion exchange membrane layer and a cation exchange membrane layer. The anion and anode membrane layers and their adjacent areas that constitute the bipolar membrane are called the intermediate interface layer. When the bipolar membrane is placed between the cathode and anode of the cell, under the action of the DC electric field, the interfacial layer of the bipolar membrane can dissociate the water between the interfaces to generate hydrogen ions and hydroxide ions. Hydrogen ions enter the cathode compartment through the cation exchange membrane layer, and hydroxide ions enter the anode compartment through the anion exchange membrane. Bipolar membranes and their hydrolytic ionization technology play a very broad role in chemical productio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/16C08J7/14C08F212/08C08F220/34C08J5/22
Inventor 毛斌毛雪明毛成伟童红柱罗汉东凌华存
Owner JIANGSU HUAHUI ENVIRONMENTAL PROTECTION TECH