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2 139 845

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IPC

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Application

98105918/04, 1998-03-25

(24)

Start date

1998-03-25

(22)

Actual filing date

1998-03-25

(45)

Published

1999-10-20

(72)

Inventor

Starostina E.B.Sedel'Nikov A.I.Radbil' B.A.Zolin B.A.Klimanskij V.I.Zaikina N.V.

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju Nauchno-Vnedrencheskaja Firma

METHOD OF REMOVING TERPENE HYDROCARBONS FROM SULFUR Russian patent published in 1999 - IPC

Abstract RU 2139845 C1

FIELD: wood chemical, and paper and pulp industries. SUBSTANCE: terpene hydrocarbons are treated with 1.0-10% aqueous solution of acid halogenamide at ratio of oxidizer to terpene hydrocarbons from 0.1 to 1:1 at pH of medium from 1 to 12. Oxidizer includes sodium salt crystallohydrate of paratoluenesulfonic acid chloroamide, acetic acid N-chloroamide and N,N-dichlorourea. EFFECT: improved method of removing terpene hydrocarbons to total sulfur content of not higher than 0.005 % and increased yield of the desired product. 6 cl, 1 tbl

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RU 2 139 845 C1

Authors

Starostina E.B.

Sedel'Nikov A.I.

Radbil' B.A.

Zolin B.A.

Klimanskij V.I.

Zaikina N.V.

Dates

1999-10-20—Published

1998-03-25—Filed

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