FIELD: chemical technology. SUBSTANCE: part of raffinate liquid from extractor upper part is added to extractor between raw and antisolvent inlets at temperature not above that of raffinate liquid at outlet from extractor. Raw is added to middle part of extractor and subjected for contacting with solvent that is fed to upper part of extractor in the presence of antisolvent. The latter is fed to the bottom part of extractor. EFFECT: improved method of refining. 2 dwg
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