Method of opening chrome ore

Details Method of opening chrome ore Method of opening chrome ore

1977-11-03

1979-10-16

Tung, T.

Chemistry: electrical and wave energy

Processes and products

423596, 75 1R, 75 2, C25B 114

Patent

active

041712480

ABSTRACT:
Disclosed is a method of opening iron oxide-chromic oxide ores of trivalent chromium by contacting the ore with an aqueous alkali metal hypochlorite bleach and recovering a liquid containing hexavalent chromium from the reaction media. The hexavalent chromium produced by the bleaching action is normally in the form of alkali metal chromate. According to a preferred exemplification, the alkali metal chromate is electrolytically converted to an alkali metal dichromate.

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