Electrowinning process with electrode compartment to avoid conta

Details Electrowinning process with electrode compartment to avoid conta Electrowinning process with electrode compartment to avoid conta

1991-09-24

1993-07-06

Valentine, Donald R.

Chemistry: electrical and wave energy

Processes and products

204 67, 204 69, 204130, 204243R, 204252, 204294, 204295, C25C 302, C25C 700, C25C 704

Patent

active

052250512

ABSTRACT:
An electrolytic process and apparatus for reducing calcium oxide in a molten electrolyte of CaCl.sub.2 -CaF.sub.2 with a graphite anode in which particles or other contamination from the anode is restricted by the use of a porous barrier in the form of a basket surrounding the anode which may be removed from the electrolyte to burn the graphite particles, and wherein the calcium oxide feed is introduced to the anode compartment to increase the oxygen ion concentration at the anode.

REFERENCES:
patent: 2913382 (1959-11-01), Everts
patent: 4214955 (1980-07-01), Bowman
patent: 4225401 (1980-09-01), Divisek et al.
patent: 4409083 (1983-10-01), Upperman et al.
patent: 4988417 (1991-01-01), DeYoung

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