公开(公告)号：US4080270A

公开(公告)日：1978-03-21

申请号：US707215

申请日：1976-07-21

申请人： Kevin J. O'Leary ,  Charles J. Hora, Jr. ,  Donald L. DeRespiris

发明人： Kevin J. O'Leary ,  Charles J. Hora, Jr. ,  Donald L. DeRespiris

IPC分类号： C25B1/14

CPC分类号： C25B1/14

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 sulfononate 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 of 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 carbonate salt to less than 400 ppm.

摘要翻译： 碱性金属碳酸盐基本上不含碱金属氯化物，通过在具有阳离子交换液压不透膜隔离的阳极电解液和阴极电解液室的电解槽中电解碱金属氯化物，由具有侧链磺酸基的氟化聚合物薄膜 和与膜隔开的阴极，将电解质二氧化碳的阴极电解液室注入足以将其中形成的碱金属氢氧化物基本上全部转化为碱金属碳酸盐的量，并利用电解电流的大小降低 碳酸盐中的碱金属氯化物低于400ppm。