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2 021 244

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IPC

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Application

4947144/04, 1991-06-20

(22)

Actual filing date

1991-06-20

(45)

Published

1994-10-15

(72)

Inventor

Majstrenko V.N.Lisitskij V.V.Shapovalov V.D.Rasulev Z.G.Kuzina L.G.

(73)

Holder

Bashkirskij Gosudarstvennyj Universitet

METHOD OF 1,2-DICHLOROETHANE SYNTHESIS Russian patent published in 1994 - IPC

Abstract RU 2021244 C1

FIELD: chemical technology. SUBSTANCE: to synthesize 1,2-dichloroethane process is carried out at the molar ratio ethylene:chlorine = 0.995:1.0-1.005: 1.0, at the rate of chlorine feeding to reactor containing 5-10 vol.% oxygen 300-900m3/h, and ethylene rate feeding 268-860m3h in the presence of 0.005-0.5 wt.-% ferric (III) chloride at 84-102 C under pressure 1,0·105-1,8·105 Pa. Abgases from the stage of 1,2-dichloroethane isolation by condensation are passed at 40-80 C through the aqueous 1-5 wt.-% solution of ferrous (II) chloride which is prepared preliminary by dissolving of ferrous (II) carbonate with aqueous solution of hydrochloric acid formed at absorption of hydrogen chloride from the purification stage of raw 1,2-dichloroethane. 1,2-Dichloroethane is used as a solvent. EFFECT: improved method of synthesis. 1 tbl

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RU 2 021 244 C1

Authors

Majstrenko V.N.

Lisitskij V.V.

Shapovalov V.D.

Rasulev Z.G.

Kuzina L.G.

Dates

1994-10-15—Published

1991-06-20—Filed

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