Liquid extraction

Details Liquid extraction Liquid extraction

1996-07-03

1997-09-02

Kastler, Scott

Metallurgical apparatus

Means for treating ores or for extracting metals

By means precipitating metal from solution

75726, C22B 1308

Patent

active

056628617

ABSTRACT:
Apparatus for liquid extraction is described. The apparatus includes a mixer to which a solvent stream (15) and a feed stream (16) are fed and in which they are mixed to form a flow stream or dispersion. The flow stream is fed to a two-stage settler (17) having a first settling stage (31) and a second settling stage (32). The first settling stage (31) is dimensioned such that primary phase separation occurs in the first settling stage (31), whilst secondary phase separation occurs in the second settling stage (32). The volume of the first settling stage (31) is less than that of the second settling stage (32).
A process for liquid extraction, and a method for retrofitting a conventional mixer-settler are also described.

REFERENCES:
patent: 4039404 (1977-08-01), Richards et al.
patent: 4334102 (1982-06-01), Decker et al.
patent: 4956097 (1990-09-01), Courduvelis
patent: 5017346 (1991-05-01), Spink et al.

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