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Rubber gasket for ionic membrane electrolytic cell

A technology of ionic membrane electrolyzer and rubber gasket, applied in electrolysis process, electrolysis components, etc., can solve the problem of high cost of use, achieve the effect of prolonging service life, reducing use and improving anti-corrosion ability

Inactive Publication Date: 2010-08-04
宏泽(江苏)科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use cost of this kind of gasket is relatively high, and the performance of the rubber gasket directly determines whether the electrolytic cell can operate normally and the cycle of operation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] The specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings and examples. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0016] The technical scheme of concrete implementation of the present invention is:

[0017] A rubber gasket used on an ion-exchange membrane electrolyzer. The main component of the rubber gasket is EPDM rubber, and the rubber gasket also contains the following ingredients: peroxide, active agent, anti-aging agent, supplement Strong filler material, complex material and silicon coupling agent.

[0018] In the present invention, the preferred technical solution is that the amount of EPDM rubber used is 100 parts by weight. And the preferred peroxide is dicumyl oxide, and the added amount of peroxide is 0.9~2.5 parts by weight. The active agen...

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PUM

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Abstract

The invention discloses a rubber gasket for an ionic membrane electrolytic cell. The rubber gasket comprises 100 parts of ethylene propylene diene rubber as a main component and other components including 0.9-2.5 parts of peroxide, 2-5 parts of active agent, 1-2 parts of antiager, 70-100 parts of reinforcing agent, 8-15 parts of compounding ingredient and 1-3 parts of silane coupling agent. Dicumyl peroxide is selected as the peroxide, zinc oxide and / or stearic Acid are / is selected as the active agent, 2-benzimidazolethiol and / or acetone-amine antiager are / is selected as the antiager, the reinforcing agent comprises semi-reinforced black charcoal, general black charcoal and white black charcoal, and the compounding ingredient comprises naphthenic oil, liquid paraffin and terpene resin. In the invention, the service life of the rubber gasket is multiplied through improving the chemical components of the rubber gasket.

Description

technical field [0001] The invention relates to a rubber gasket, in particular to a rubber gasket used on an ion membrane electrolyzer. Background technique [0002] The ionic membrane electrolyzer is a special equipment for the chlor-alkali industry, which produces caustic soda (NaOH) and chlorine gas (Cl) through the electrolysis of brine (NaCl) 2 ), etc., the electrolytic cell is generally composed of several to more than one hundred unit cells, each unit cell is sealed by a rubber gasket, and the rubber gasket is divided into a cathode side gasket and an anode side gasket, and the middle of the two A layer of ionic membrane is sandwiched, and the whole electric cell is locked by a hydraulic press or multiple pull rods to achieve a sealed effect. The use environment of the rubber gasket is as follows: the cathode gasket should be exposed to sodium hydroxide solution at about 90 °C, and the anode gasket should be exposed to chlorine gas, hydrochloric acid, sodium hypochlo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B1/46C08L23/16C08K13/02C08K5/14C08K3/22C08K5/09C08K5/37C08K5/17C08K3/04C08K3/36
Inventor 刘跃生曹旭
Owner 宏泽(江苏)科技股份有限公司