Method of solvent extraction and apparatus therefor

Details Method of solvent extraction and apparatus therefor Method of solvent extraction and apparatus therefor

1995-05-22

1999-07-27

Alexander, Lyle A.

Chemical apparatus and process disinfecting, deodorizing, preser

Physical type apparatus

Means separating or dissolving a material constituent

423 8, 210194, 210634, 210511, B01D 1104

Patent

active

059286164

ABSTRACT:
In a solvent extraction method a contactor comprises a forward extraction section comprising sub-sections thereof and a back extraction section comprising sub-sections thereof. To enable higher concentrations of solute to be obtained in the backwash liquor, the contactor is operated with recycle of partially-loaded solvent, via a line from a back extraction sub-section to a forward extraction sub-section.

REFERENCES:
patent: 3711591 (1973-01-01), Hurst et al.
patent: 3959435 (1976-05-01), Mills et al.
patent: 4028462 (1977-06-01), Domic et al.
patent: 4787979 (1988-11-01), Kolarik et al.
patent: 4832923 (1989-05-01), Lonie

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