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2 074 162

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C1

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Application

93036358/04, 1993-07-14

(22)

Actual filing date

1993-07-14

(45)

Published

1997-02-27

(72)

Inventor

Denisenkov V.F.Il'In A.N.Volkov V.N.Akimenko A.F.Lekomtsev A.G.Ivanova L.M.Plotnikov V.F.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa

METHOD FOR PRODUCTION OF OCTAFLUOROPROPANE Russian patent published in 1997 - IPC

Abstract RU 2074162 C1

FIELD: production of dielectrics and cooling agents. SUBSTANCE: hexafluoropropylene is used as reagent 1, elementary fluorine being used as reagent 2. Fluorination is carried out at 10-30 C in the medium of fluorocarbon liquid which comprises 3-8 mass % of 1,1,3,3-tetraperfluoromethyl-2-pentafluoroethyldifluoropropyl radical. Said liquid represents perfluorolefins having formula (CF3)2CFCR1= CR2CF3 where R1-F1C2F5,CF(CF3)2,R2-F,CF2,CF2CF3 or it represents linear perfluorinated aliphatic compounds having common formula CF3(CF2)nF where n=5-10. EFFECT: improves efficiency of the method. 1 tbl

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RU 2 074 162 C1

Authors

Denisenkov V.F.

Il'In A.N.

Volkov V.N.

Akimenko A.F.

Lekomtsev A.G.

Ivanova L.M.

Plotnikov V.F.

Dates

1997-02-27—Published

1993-07-14—Filed

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