Process for removing aluminum and silica from alkali metal halid

Details Process for removing aluminum and silica from alkali metal halid Process for removing aluminum and silica from alkali metal halid

1983-11-18

1984-05-22

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

210662, 210670, 210681, 423179, 423499, 204128, C25B 116, C25B 126

Patent

active

044500572

ABSTRACT:
A process for removing dissolved aluminum and silica contaminants from concentrated alkali metal halide brines used in membrane electrolytic cells is disclosed. The process involves contacting an acidified brine at a pH of between about 2.0 and about 3.0 with a strong macroreticular cationic chelating resin.

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patent: 4207152 (1980-06-01), Kadija et al.
patent: 4242185 (1980-12-01), McRae
patent: 4261803 (1981-04-01), Suhara et al.
patent: 4274929 (1981-06-01), Novak
patent: 4417961 (1983-11-01), Ezzell et al.

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