Continuous solvent extraction with bottom gas injection

Details Continuous solvent extraction with bottom gas injection Continuous solvent extraction with bottom gas injection

1995-07-12

1997-06-24

Kim, Christopher

Chemical apparatus and process disinfecting, deodorizing, preser

Physical type apparatus

Means separating or dissolving a material constituent

422256, 422258, 366107, 3661671, 3661731, 210643, 210151, B01D 1104

Patent

active

056414625

ABSTRACT:
A method and apparatus for solvent extraction where the heavy and light phases are directed counter-currently into vertical mixing zones created by high-strength gas jets injecting gas up through the liquids to create an emulsion plume between the two liquids. The gas jets are at certain intervals along the countercurrent flow paths of the liquids with settling zones on either side of each the mixing zone. The phases disengage in the settling zones, flowing from the mixing zone in opposite countercurrent directions. The system has minimal backmixing, no moving parts, and good contact between phases.

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patent: 5048598 (1991-09-01), Takemae et al.
patent: 5076930 (1991-12-01), Rubin
patent: 5324109 (1994-06-01), Johari
patent: 5393429 (1995-02-01), Nakayama et al.

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