发明名称 |
FOERFARANDE FOER FRAMSTAELLNING AV ALKALIMETALLKARBONAT |
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 |
FI782273(A) |
申请公布日期 |
1979.01.20 |
申请号 |
FI19780002273 |
申请日期 |
1978.07.18 |
申请人 |
DIAMOND SHAMROCK CORP |
发明人 |
O'LEARY KEVIN JOSEPH;HORA CHARLES JOSEPH;DERESPIRIS DONALD LOUIS |
分类号 |
C01D7/07;C08J5/22;C25B1/14;C25B1/46;C25B13/08;(IPC1-7):C25B/ |
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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