EXTRACTION COLUMN AND METHOD FOR USE THEREOF Russian patent published in 2017 - IPC B01D11/04 C10G21/00 

FIELD: chemistry.

SUBSTANCE: disclosed group of inventions relates to extraction of a liquid with a liquid. Counter-current column (1) is configured to allow two or more liquids (2) to flow through it. Column includes inside one common vessel (3) first inlet (41) for first liquid feed stream (51), located in upper part (161), second inlet (42) for second liquid feed stream (52), located in bottom part (162), first outlet (61) for product stream (71), located in upper part (161), second outlet (62) for by-product stream (72), located in bottom part (162). Column also includes also mixing section (8) with agitation means (9), static section (10) with packing (11), collector (12) and/or distributor (13). Inside common vessel (3) there is only one mixing section (8) and only one or two static sections (10). Sections (8) and (10) are not located in upper part or lower part of column.

EFFECT: technical result is possibility of efficient extraction of systems with significant changes of physical properties due to changes in concentration as extraction process progresses and on column height, avoiding formation of emulsion and ash.

14 cl, 3 ex, 4 dwg