METHOD OF PREPARING MEDICINAL LIGNIN Russian patent published in 1999 - IPC

Abstract RU 2140279 C1

FIELD: medicine. SUBSTANCE: hydrolytic lignin is treated with alkali while stirring in two stager at hydromodulus of 6, temperature of 80-85 C, each stage continuing for 1-1.5 hours, with washing operation performed between two stages. The resulting lignin is neutralized with carbon dioxide, washed, ground and dried. EFFECT: greater sorption power of the title product. 2 cl, 1 ex

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RU 2 140 279 C1

Authors

Plisov N.V.

Dykalo N.Ja.

Matantsev V.A.

Dates

1999-10-27—Published

1998-02-03—Filed