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Application

98106705/04, 1998-04-10

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Actual filing date

1998-04-10

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Published

1999-05-27

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Inventor

Golubev A.N.Dedov A.S.Denisov A.K.Zakharov V.Ju.Masljakov A.I.Nasonov Ju.B.Orekhov V.T.Shatalov V.V.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa Kirovo-Chepetskij Khimicheskij Kombinat Im.B.P.Konstantinova

METHOD OF PREPARING 1,1,2,2-TETRAFLUOROETHANE Russian patent published in 1999 - IPC

Abstract RU 2130916 C1

FIELD: chemical industry. SUBSTANCE: method comprises catalytically hydrogenating tetrafluoroethylene at elevated temperature using alumopalladium catalyst. Metallic palladium is applied onto alpha-aluminium oxide in amount of 2 wt %. Optimum hydrogenation is conducted at 100-110 C at contact compound height to diameter ratio under isothermal conditions at tetrafluoroethylene amount of 0.11-1.45 l/h per 1 g of catalyst. Method makes it possible to increase conversion of tetrafluoroethylene to 99.9% and yield of desired product to 99.9%. EFFECT: more efficient preparation method. 5 cl, 10 ex, 1 tbl

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RU 2 130 916 C1

Authors

Golubev A.N.

Dedov A.S.

Denisov A.K.

Zakharov V.Ju.

Masljakov A.I.

Nasonov Ju.B.

Orekhov V.T.

Shatalov V.V.

Dates

1999-05-27—Published

1998-04-10—Filed

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