Chemistry: electrical and wave energy – Processes and products
Patent
1975-10-01
1976-09-28
Andrews, R. L.
Chemistry: electrical and wave energy
Processes and products
204 97, 204105R, C25C 110, C25B 114, C25B 122
Patent
active
039830160
ABSTRACT:
Disclosed is a method of operating a chromium metal electrolytic cell in series with a chromic acid cell. The feed to the chromium metal cell is the chromic acid-alkali metal dichromate effluent from the chromic acid cell and the product of the chromium metal cell is chromium metal and depleted chromic acid-alkali metal dichromate solution. The depleted chromic acid-alkali metal dichromate solution is recycled to the chromic acid cell with make up alkali metal chromate and alkali metal dichromate.
REFERENCES:
patent: 3305403 (1967-02-01), Carlin
patent: 3423300 (1969-01-01), Joo et al.
patent: 3481851 (1969-12-01), Lancy
Carlin William W.
Ellsworth Arthur C.
Andrews R. L.
Goldman Richard M.
PPG Industries Inc.
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