Selective chromate removal from a chlorate solution

Details Selective chromate removal from a chlorate solution Selective chromate removal from a chlorate solution

1979-07-02

1981-05-19

Sneed, Helen M. S.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group vib metal

134 13, 210721, 2604385R, C01G 3700, C07F 1100

Patent

active

042684862

ABSTRACT:
A method has been devised for removing hexavalent chromium from concentrated aqueous alkali metal chlorate solutions by reacting the solution with a hydrazine compound and separating trivalent chromium compound from the solution. Alkali metal hypohalites may be simultaneously removed from the chlorate solution by reaction with excess hydrazine compound.

REFERENCES:
patent: 3537896 (1970-11-01), Nobse et al.

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