Controllable nitrate fusion

Details Controllable nitrate fusion Controllable nitrate fusion

1985-03-01

1986-07-29

Carter, H. T.

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

423 61, C01G 4100

Patent

active

046030433

ABSTRACT:
A process for converting tungsten bearing material to sodium tungstate by adding an oxidizing reactant in small increments to a heated mixture of fused sodium hydroxide and the tungsten bearing material while the temperature is maintained at from about 500.degree. C. to about 700.degree. C.

REFERENCES:
patent: 1255144 (1918-02-01), Ekeley et al.
patent: 1652646 (1927-12-01), Stoddard et al.
patent: 2501952 (1950-03-01), Maier

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