SOLVENT EXTRACTION PROCESS Russian patent published in 2000 - IPC

Abstract RU 2149671 C1

FIELD: physico-chemical processes. SUBSTANCE: in a method of extraction of substance or composition of substances, sample of raw material is first brought into contact with extraction solvent containing C_1-4-fluorohydrocarbon and cosolvent. Then, extract solution is separated from raw material. Method can be used for extraction of natural products such as aromatic or aromatized oils and biologically-active compounds such as pesticides, and pharmaceutical agents. EFFECT: enhanced process efficiency. 48 cl, 3 tbl, 11 ex

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RU 2 149 671 C1

Authors

Pauehll Richard Llevellin

Nehouks Timoti Dzhejms

Vil'De Piter Frederik

Dates

2000-05-27—Published

1995-03-15—Filed