Purification process

Details Purification process Purification process

2005-05-17

2005-05-17

Silverman, Stanley S. (Department: 1754)

Chemistry: physical processes

Physical processes

Crystallization

C023S29500G

Reexamination Certificate

active

06893474

ABSTRACT:
In a method of purifying an aluminium salt from a first aqueous aluminium salt solution of a raw material containing impurities, which comprise salts of at least one more noble metal than aluminium dissolved therein, a method of purifying a metal salt from inorganic impurities in an aqueous solution thereof is included. A plant for carrying out the method is also shown.

REFERENCES:
patent: 3890226 (1975-06-01), Hanami et al.
patent: 5558847 (1996-09-01), Kaaber et al.
patent: 497853 (1938-12-01), None
patent: 7903250-4 (1981-07-01), None

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