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2 069 211

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IPC

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Application

94022664/04, 1994-06-10

(22)

Actual filing date

1994-06-10

(45)

Published

1996-11-20

(72)

Inventor

Gol'Dinov A.L.Denisov A.K.Novoselov F.I.Tsvetkov V.F.Abramov O.B.Zakharova O.M.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa Khimicheskij Kombinat Im.B.P.Konstantinova"

METHOD OF SYNTHESIS OF 1,2-DIFLUOROTRICHLOROETHANE Russian patent published in 1996 - IPC

Abstract RU 2069211 C1

FIELD: chemical technology. SUBSTANCE: method involves treatment of dispersed trichloroethylene with evaporated uranium hexafluoride that is diluted with inert gas at reagent ratio near to stoichiometric one. Condensed 1,2-difluorotrichloroethane or treatment products were added to reaction zone at amount 0.3-2.5 mole 1,2-difluorotrichloroethane per 1 mole uranium hexafluoride simultaneously with parental reagents. Method ensures to increase the yield of the end product up to 96.3% (by organic raw) and enhance quality without decrease content of trichloroethylene and other impurities. Method is used for freons synthesis exhibiting low ozone-destructive capability. EFFECT: improved method of synthesis. 1 tbl

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RU 2 069 211 C1

Authors

Gol'Dinov A.L.

Denisov A.K.

Novoselov F.I.

Tsvetkov V.F.

Abramov O.B.

Zakharova O.M.

Dates

1996-11-20—Published

1994-06-10—Filed

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