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2 019 539

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Application

3148193/04, 1986-06-10

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Actual filing date

1986-06-10

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Published

1994-09-15

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Inventor

Barabanov V.G.Ryleev G.I.Ozol S.I.Zajtsev S.A.Mitin P.V.Al'Terman V.B.Shal'Nov Ju.V.Utkina I.M.Tsarev V.A.Borisenko A.T.Tokarev A.V.Masljakov A.I.Baev V.M.

(73)

Holder

Nauchno-Proizvodstvennoe Ob"Edinenie Institut Prikladnoj Khimii"

PROCESS FOR PREPARING TETRAFLUOROETHYLENE Russian patent published in 1994 - IPC

Abstract RU 2019539 C1

FIELD: a process for preparing tetrafluoroethylene. SUBSTANCE: tetrafluoroethylene is prepared by pyrolysis of difluorochloromethane at 800-900 C in the presence of overheated steam followed by hardening of the pyrolysis gases from 800-900 C to 300-400 C and indirect cooling with steam delivered to pyrolysis from 300-400 C to 100 C. The cooling is effected by addition of water or delute hydrochloric acid which is production waste of the given process at a 0.3-0.7:1 molar ratio calculated for the pyrolysis gases. EFFECT: lower energy consumption and increased service life of the equipment. 2 tbl

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RU 2 019 539 C1

Authors

Barabanov V.G.

Ryleev G.I.

Ozol S.I.

Zajtsev S.A.

Mitin P.V.

Al'Terman V.B.

Shal'Nov Ju.V.

Utkina I.M.

Tsarev V.A.

Borisenko A.T.

Tokarev A.V.

Masljakov A.I.

Baev V.M.

Dates

1994-09-15—Published

1986-06-10—Filed

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