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2 639 148

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IPC

C07C45/82(2006-01-01)

C07C45/85(2006-01-01)

C07C49/167(2006-01-01)

(21) (22)

Application

2016105306, 2016-02-17

(24)

Start date

2016-02-17

(22)

Actual filing date

2016-02-17

(45)

Published

2017-12-20

(72)

Inventor

Bispen Tatyana AlekseevnaZajtsev Sergej AleksandrovichZemlyanoj Aleksandr VasilevichMoldavskij Dmitrij DmitrievichMitichuk Vadim Dmitrievich

(73)

Holder

Rossijskaya Federatsiya, Ot Imeni Kotoroj Vystupaet Ministerstvo Promyshlennosti I Torgovli Rossijskoj Federatsii

METHOD FOR PURIFYING PERFLUOROETHYLISOPROPYL KETONE Russian patent published in 2017 - IPC C07C45/82 C07C45/85 C07C49/167

Abstract RU 2639148 C2

FIELD: chemistry.

SUBSTANCE: invention relates to a method for purifying perfluoroethylisopropyl ketone (PFEC) used as a fire extinguishing agent, a solvent, a medium for carrying out chemical and biochemical processes. The method includes the excretion of hexafluoropropane Dimer from "raw" PFEC and subsequent rectification, while excretion is carried out by treatment with gaseous fluorine, then washed with aqueous sodium bicarbonate, dried with zeolite and the resulting mixture is rectified.

EFFECT: method allows to obtain perfluoroethylisopropyl ketone of the required purity.

1 dwg, 4 ex

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RU 2 639 148 C2

Authors

Bispen Tatyana Alekseevna

Zajtsev Sergej Aleksandrovich

Zemlyanoj Aleksandr Vasilevich

Moldavskij Dmitrij Dmitrievich

Mitichuk Vadim Dmitrievich

Dates

2017-12-20—Published

2016-02-17—Filed