C - Chemistry – Metallurgy – 25 – B
Patent
C - Chemistry, Metallurgy
25
B
23/172, 204/43.1
C25B 1/36 (2006.01) C01D 3/16 (2006.01) C01F 11/46 (2006.01) C25B 15/08 (2006.01)
Patent
CA 1107676
Abstract of the Disclosure In the process for the production of chlorine and alkali metal hydroxide by electrolysis according to the amalgam process using calcium- and/or sulphate containing crude salt, the calcium and/or sulphate contents introduced into the brine circuit by the crude salt are removed from the brine by precipitation of the double salt Na2SO4 . CaSO4. Small particles of glauberite may be introduced to the brine to initiate and accelerate precipitation. Le A 17 756
298182
Aktiengesellschaft Bayer
Fetherstonhaugh & Co.
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