METHOD OF PRODUCING SITOSTEROL FROM TALL PITCH Russian patent published in 1999 - IPC

Abstract RU 2128662 C1

FIELD: wood industry. SUBSTANCE: softwood tall pitch is hydrolyzed with alkali and hydrolyzate is extracted with alcohol-gasoline mixture at ratio from 1:12 to 1:20, respectively, at 25-35 C. Product is obtained by crystallization from ethylacetate solution containing 5-8% water at 5- 15 C. EFFECT: simplified process and essentially improved quality of product. 1 tbl, 8 ex

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RU 2 128 662 C1

Authors

Radbil' B.A.

Kochev D.M.

Zolin B.A.

Klimanskij V.I.

Krepkij E.N.

Lobanova L.V.

Dates

1999-04-10Published

1998-03-17Filed