Process for producing alkali metal chromates and dichromates

Details Process for producing alkali metal chromates and dichromates Process for producing alkali metal chromates and dichromates

1970-04-24

1976-01-13

Carter, Herbert T.

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

423597, 423 61, 423 53, 423633, C01G 3714

Patent

active

039325989

ABSTRACT:
An improved process for producing alkali metal chromates and dichromates wherein ferrochrome alloy containing at least 1% carbon by weight is reacted with a molten mixture of an alkali metal nitrate and an alkali metal carbonate at a temperature of at least 350.degree.C. The ferrochrome alloy can be prepared by smelting chromite ore in the presence of carbon.

REFERENCES:
patent: 901436 (1908-10-01), Gibbs
patent: 1526325 (1925-02-01), Drefahl
patent: 2402102 (1946-06-01), Udy
patent: 3046091 (1962-07-01), Van Hoozer

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