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Application

3074367/04, 1983-09-26

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Actual filing date

1983-09-26

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Published

1994-09-15

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Inventor

Вarabanov V.G.No L.V.Rozhdestvenskaja О.V.Ryleev G.I.Оzol S.I.Zajtsev S.А.Аl'Terman V.В.Utkina I.М.Тsarev V.А.Вorisenko А.Т.

(73)

Holder

Nauchno-Proizvodstvennoe Ob"Edinenie Institut Prikladnoj Khimii"

PROCESS FOR PREPARING TETRAFLUOROETHYLENE BY PYROLYSIS OF DI-FLUOROCHLOROMETHANE IN THE PRESENCE OF STEAM Russian patent published in 1994 - IPC

Abstract RU 2019537 C1

FIELD: preparation of fluorine containing polymers. SUBSTANCE: tetrafluoroethylene is prepared by pyrolysis of difluorochloromethane in the presence of steam first under adiabatic conditions at 730-780 C till 10-40% conversion of the starting material are attained and then under isothermic conditions at 750-850 C till 65-90% conversion are attained at a steam-to-difluoroethane molar ratio determined by the formula: n=K10(4000/T-5.1)-1 in which K is the conversion of difluorochloroethane at the reactor outlet,%: T is the temperature of the isothermal portion, deg.K. EFFECT: improved properties of the tetrafluoroethylene. 3 tbl

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RU 2 019 537 C1

Authors

Вarabanov V.G.

No L.V.

Rozhdestvenskaja О.V.

Ryleev G.I.

Оzol S.I.

Zajtsev S.А.

Аl'Terman V.В.

Utkina I.М.

Тsarev V.А.

Вorisenko А.Т.

Dates

1994-09-15—Published

1983-09-26—Filed

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