Process for the removal of cadmium ions from phosphoric acid res

Details Process for the removal of cadmium ions from phosphoric acid res Process for the removal of cadmium ions from phosphoric acid res

1990-05-25

1991-11-26

Rosenberg, Peter D.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iib metal

75722, 75743, C01G 5500

Patent

active

050680943

ABSTRACT:
A process for the removal of cadmium ions by liquid-liquid extraction from wet process phosphoric acid, which had been obtained from crude phosphate ores by dissolution with sulfuric acid, uses salts of long chain alkyl amines or ammonium bases with the chlorocomplexes of polyvalent metal ions, which are dissolved in an inert organic solvent.

REFERENCES:
patent: 3258307 (1966-06-01), George
patent: 3458282 (1969-07-01), Koerner et al.
patent: 3558288 (1971-01-01), Burrows
patent: 4012481 (1977-03-01), Baltz
patent: 4492680 (1985-01-01), Frankenfeld et al.
A. Alian et al., Solvent Extraction Studies on Cadmium, 750515 I.
A. Alain et al., Solvent Extraction Studies on Cadmium, 750523 II.

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