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2 714 134

(13)

(51)

IPC

C07C45/85(2006-01-01)

C07C49/167(2006-01-01)

(21) (22)

Application

2019133131, 2019-10-16

(24)

Start date

2019-10-16

(22)

Actual filing date

2019-10-16

(45)

Published

2020-02-12

(72)

Inventor

Barabanov Valerij GeorgievichBispen Tatyana AlekseevnaMitichuk Vadim DmitrievichGoverdovskij Vladimir NikolaevichMoldavskij Dmitrij Dmitrievich

(73)

Holder

Federalnoe Gosudarstvennoe Unitarnoe Predpriyatie Nauchnyj Tsentr Khimiya"

METHOD OF PURIFYING PERFLUOROETHYL ISOSPROPYL KETONE Russian patent published in 2020 - IPC C07C45/85 C07C49/167

Abstract RU 2714134 C1

FIELD: technological processes.

SUBSTANCE: present invention relates to a method of purifying "crude" perfluoroethyl isopropyl ketone containing impurities of a dimer of hexafluoropropene, involving treatment of its "raw" with gaseous halogen with subsequent rectification of the obtained mixture. Raw is treated with gaseous chlorine in the presence of a catalyst: iron (III) chloride, supported on activated carbon, or copper (II) chloride, deposited on activated carbon.

EFFECT: disclosed method enables to obtain perfluoroethylisopropyl ketone with purity of 99_95 %.

1 cl, 9 ex

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RU 2 714 134 C1

Authors

Barabanov Valerij Georgievich

Bispen Tatyana Alekseevna

Mitichuk Vadim Dmitrievich

Goverdovskij Vladimir Nikolaevich

Moldavskij Dmitrij Dmitrievich

Dates

2020-02-12—Published

2019-10-16—Filed