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2 185 386

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IPC

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Application

2000130942/04, 2000-12-13

(24)

Start date

2000-12-13

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Actual filing date

2000-12-13

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Published

2002-07-20

(72)

Inventor

Galochkin A.I.Anan'Ina I.V.Putilova E.S.

(73)

Holder

Altajskij Gosudarstvennyj Universitet

METHOD FOR SULFOETHYLATION OF LIGNO-CARBOHYDRATE MATERIALS Russian patent published in 2002 - IPC

Abstract RU 2185386 C1

FIELD: resin industry and chemical engineering. SUBSTANCE: invention aims at production of sodium salts of sulfoethyl esters of ligno-carbohydrate materials, which can be used as chemical additives for controlling properties of washing fluids when boring oil and gas holes, for stabilizing cement mortars in building industry, and as reagents in ore flotation. Method consists in that preliminarily activated cellulose-based material, in particular unseparated cellulose/lignin/hemicellulose mixture, is affected by sodium beta- chloroethylsulfonate in boiling isopropyl alcohol for 3 h, observing fluid modulus 1:20. EFFECT: utilized total amount of ligno-carbohydrate material, reduced cost of final product, and enabled wasteless technology. 1 tbl

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RU 2 185 386 C1

Authors

Galochkin A.I.

Anan'Ina I.V.

Putilova E.S.

Dates

2002-07-20—Published

2000-12-13—Filed

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