发明名称 |
VERFAHREN ZUR ELEKTROLYTISCHEN HERSTELLUNG VON ALKALICARBONAT |
摘要 |
An alkali metal carbonate substantially free of alkali metal chloride is efficiently produced by electrolyzing an alkali metal chloride in an electrolytic cell having anolyte and catholyte compartments separated by a cation-exchange hydraulically impermeable membrane comprised of a thin film of a fluorinated polymer having pendant carboxylic acid or alkali metal carboxylate groups and a cathode spaced apart from the membrane, injecting into the catholyte compartment of the cell carbon dioxide in a quantity sufficient to convert substantially all the alkali metal hydroxide forming therein to the alkali metal carbonate salt, and utilizing a magnitude of electrolyzing current that reduces alkali metal chloride in the catholyte solids to less than 400 ppm. |
申请公布号 |
DE2831331(A1) |
申请公布日期 |
1979.02.08 |
申请号 |
DE19782831331 |
申请日期 |
1978.07.17 |
申请人 |
DIAMOND SHAMROCK CORP. |
发明人 |
JOSEPH O'LEARY,KEVIN;JOSEPH HORA,CHARLES;LOUIS DERESPIRIS,DONALD |
分类号 |
C01D7/07;C08J5/22;C25B1/14;C25B1/46;C25B13/08;(IPC1-7):C25B1/14 |
主分类号 |
C01D7/07 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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