Chromic oxide production

Details Chromic oxide production Chromic oxide production

1980-07-07

1981-10-20

Carter, Herbert T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group vib metal

423607, C01G 37033

Patent

active

042960762

ABSTRACT:
Chromic oxide of very low (below 40 ppm) insoluble sulphur content is obtained by calcination of a less pure product at a temperature above 1100.degree. C. for at least 10 minutes.

REFERENCES:
patent: 2209907 (1940-07-01), Tarr
patent: 4040860 (1977-08-01), Mansmann et al.
patent: 4052225 (1977-10-01), Mansmann et al.
patent: 4127643 (1978-11-01), Carlin
Kovel et al., "Zhurmal Prikladnoi Khimii", vol. 43, 1970, pp. 236-240, (pp. 245-248 of translation applied).

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