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1 616 036

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A1

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Application

4665778/26, 1989-01-16

(22)

Actual filing date

1989-01-16

(45)

Published

1996-01-20

(72)

Inventor

Ivanov B.E.Krokhina S.S.Fridland N.S.Platova E.V.Badeeva E.K.Loskutov L.G.Kljuev B.L.Mitrokhin A.M.Beskopyl'Nyj A.M.Kalashnikov I.V.

METHOD FOR PRODUCTION OF SODIUM HYPOPHOSPHITE Russian patent published in 1996 - IPC

Abstract SU 1616036 A1

FIELD: chemistry of inirganic compounds. SUBSTANCE: elementary phosphorus is subjected to reaction with trimethylamine, ethylene oxide and water at molar ratio of components of 1:(10-20):(8-20) in medium of solvent at temperature of 40-80 C with subsequent treatment of reaction mass with equimolar quantity of sodium hydroxide. Solvent is used in form of isopropanol and water. β-oxyethyltrimethylammonium hydroxide formed in treatment of reaction mass with sodium hydroxide is returned for recycle with elementary phosphorus. EFFECT: reduced toxicity and provided wasteless production method due to recycle of b-pxyethyltrimethylammonium hydroxide in course of reaction. 3 cl

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SU 1 616 036 A1

Authors

Ivanov B.E.

Krokhina S.S.

Fridland N.S.

Platova E.V.

Badeeva E.K.

Loskutov L.G.

Kljuev B.L.

Mitrokhin A.M.

Beskopyl'Nyj A.M.

Kalashnikov I.V.

Dates

1996-01-20—Published

1989-01-16—Filed

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