Preparation method of coating solution for ion exchange membrane

An ion-exchange membrane and solution technology, applied in the field of ion-exchange membranes, can solve the problems of unpublished materials showing the coating method for ion-exchange membranes, and achieve the effect of low cell voltage value and reduced cell voltage

Active Publication Date: 2020-12-25
SHANDONG DONGYUE POLYMER MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although foreign companies have successfully developed ion-exchange membranes and commercialized them, there is no public information showing the coatings for ion-exchange membranes and the methods of coating solutions used.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The preparation method of described ion-exchange membrane coating solution comprises the following steps:

[0032] (1) Add nano-titanium oxide and nano-zirconia particles to the bonding solution to form a mixed phase, wherein the bonding solution is a solution formed by dissolving perfluorosulfonic acid resin in methanol-water solution, and the concentration of nano-oxide particles and bonding solution The mass ratio is 1:10. The mixed phase is mixed evenly, and the solvent is evaporated and dried until the mixed phase becomes solid particles, and the solid particles are solidified at 100°C for 70 minutes, and then the solid Particles are broken into micron particles with a particle size of 2-10 μm;

[0033] (2) Mix the above-mentioned micron particles with nano oxide particles and bonding solution, then disperse evenly to obtain a coating solution for ion exchange membranes, wherein the nano oxide particles are the nano titanium oxide particles mentioned in step (1) M...

Embodiment 2

[0035] The preparation method of described ion-exchange membrane coating solution comprises the following steps:

[0036] (1) Add nano-zinc oxide particles to the bonding solution to form a mixed phase, wherein the bonding solution is a solution formed by dissolving perfluorosulfonic acid resin in ethanol-ethylene glycol-n-propanol solution, and the nano-oxide particles and adhesive The mass ratio of the solution is 1:5, the mixed phase is mixed evenly, and the solvent is volatilized and dried until the mixed phase becomes a solid particle, and the solid particle is placed at 120 ° C for 45 minutes, and then the The solid particles are broken into micron particles with a particle size of 3-8um;

[0037] (2) Mix the above-mentioned micron particles with nano-zinc oxide particles and a binding solution, and then disperse uniformly to obtain a coating solution for ion-exchange membranes, wherein the mass ratio of the micro-particles to the nano-zinc oxide particles is 1:1; the mi...

Embodiment 3

[0039] The preparation method of described ion-exchange membrane coating solution comprises the following steps:

[0040] (1) Add nano-titanium oxide and nano-silicon oxide particles to the bonding solution to form a mixed phase, wherein the bonding solution is a solution formed by dissolving perfluorocarboxylic acid resin in DMSO-acetone solution, and the nano-oxide particles and bonding solution The mass ratio of the mixed phase is 2:1, the mixed phase is mixed evenly, and the solvent is volatilized and dried until the mixed phase becomes a solid particle, and the solid particle is placed at 190 ° C for 100 minutes, and then the Solid particles are broken into micron particles with a particle size of 2-15um;

[0041] (2) Mix the above-mentioned micron particles with nano oxide particles and bonding solution, then disperse evenly to obtain a coating solution for ion exchange membranes, wherein the nano oxide particles are the nano titanium oxide particles mentioned in step (1...

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Abstract

The invention belongs to the technical field of ion exchange membranes, and particularly relates to a preparation method of a coating solution for an ion exchange membrane. The preparation method comprises the following steps: (1) adding nano oxide particles into a bonding solution to form a mixed phase, then volatilizing and drying the mixed phase to form solid particles, curing the solid particles at a high temperature, and crushing the solid particles into micron particles; and (2) mixing the micron particles with nano oxide particles and a bonding solution, and then uniformly dispersing toobtain the coating solution for the ion exchange membrane. After the prepared coating solution for the ion exchange membrane is used to coat a base membrane of the ion exchange membrane, the voltageof an obtained ion exchange membrane tank is remarkably reduced, and the coating solution is suitable for the electrolysis industry of alkali chloride and can stably and efficiently treat the alkali chloride solution with wide-range concentration, and the coating solution is suitable for running in a novel zero-polar-distance electrolytic cell under the condition of high current density.

Description

technical field [0001] The invention belongs to the technical field of ion exchange membranes, and in particular relates to a preparation method of a coating solution for ion exchange membranes. Background technique [0002] Due to their excellent permselectivity, ion exchange membranes have been widely used in electrolytic oxidation and reduction operations. The application of perfluorinated ion exchange membranes in the salt electrolysis industry has caused revolutionary changes in the chlor-alkali industry. In addition, it is widely used in the electrolysis of potassium chloride to produce potassium carbonate, sodium chloride to produce sodium carbonate, sodium chloride to produce sodium sulfite, and sodium sulfate to produce caustic soda and sulfuric acid. In recent years, in order to improve production efficiency and reduce energy consumption, ion exchange membranes with more stable performance are constantly being pursued. It is expected that ion exchange membranes ca...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): C09D201/06C09D201/08C09D7/61C08J9/36C25B13/08
CPCC09D201/06C09D201/08C09D7/61C08J9/365C25B13/08C08K2201/011C08K2003/2241C08K2003/2244C08K2003/2296C08K2201/005C08J2300/102C08J2300/104C08J2400/104C08J2400/105C08K3/22C08K3/36
Inventor张志浩滕培峰王玉顺杨淼坤张江山张永明
OwnerSHANDONG DONGYUE POLYMER MATERIAL