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2 090 550

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IPC

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Application

93050697/04, 1993-11-04

(22)

Actual filing date

1993-11-04

(45)

Published

1997-09-20

(72)

Inventor

Bubnova B.G.Krylov V.K.Shkol'Naja Z.I.Besedin V.I.Sirotkin V.I.Fokov E.M.

(73)

Holder

Ljuberetskoe Nauchno-Proizvodstvennoe Ob"Edinenie

METHOD FOR ISOLATION OF ANHYDROUS SODIUM FORMATE FROM AQUEOUS SOLUTIONS Russian patent published in 1997 - IPC

Abstract RU 2090550 C1

FIELD: chemical technology. SUBSTANCE: benzene, toluene or xylene were used as an azeotrope-forming agent for salt dehydration. Aqueous layer of the obtained azeotrope mixture is fed to the main stage of alcohol synthesis and organic layer is used repeatedly in the process of distillation. Volume ratio of an aqueous salt solution : azeotroper = (1-1.5):2. Method is used for production of polyhydric alcohols. EFFECT: improved method of isolation.

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RU 2 090 550 C1

Authors

Bubnova B.G.

Krylov V.K.

Shkol'Naja Z.I.

Besedin V.I.

Sirotkin V.I.

Fokov E.M.

Dates

1997-09-20—Published

1993-11-04—Filed

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