Activated carbon adsorption of flotation reagents from tungsten

Details Activated carbon adsorption of flotation reagents from tungsten Activated carbon adsorption of flotation reagents from tungsten

1984-02-27

1985-03-12

Carter, Herbert T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group vib metal

423 53, 423 61, 75101BE, C01G 4100

Patent

active

045044481

ABSTRACT:
Foaming in the hydrometallurgical treatment of a tungsten-containing aqueous solution due to the presence of carbonaceous organic material impurities, such as flotation reagents, is substantially inhibited by the addition of effective amounts of powdered activated carbon, the carbon with the adsorbed impurities being thereafter separated from the solution by filtering. The activated carbon also protects the solvent extraction circuit from contamination. The method is particularly applicable to slurries of tungsten oxide concentrates during the high temperature, high pressure leaching thereof with sodium carbonate solutions in an autoclave.

REFERENCES:
patent: 4342728 (1982-08-01), Queneau et al.
patent: 4379126 (1983-04-01), Kim et al.

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