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2 091 363

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C1

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IPC

(21) (22)

Application

95105554/04, 1995-04-11

(22)

Actual filing date

1995-04-11

(45)

Published

1997-09-27

(72)

Inventor

Orlov A.P.Shchavelev V.B.Kopejkina N.V.Pimkin V.G.Zubashvili G.M.

(73)

Holder

Rossijskij Nauchnyj Tsentr Khimija"

METHOD OF PURIFICATION OF HALOHYDROCARBONS OF ETHANE SERIES Russian patent published in 1997 - IPC

Abstract RU 2091363 C1

FIELD: chemical industry. SUBSTANCE: chemical industry, more particularly purification of ozone-nondestructive halohydrocarbons which should replace use of the chlorofluorohydrocarbons which destruct ozone layer of atmosphere. The claimed method of removing halogen containing impurities are inorganic acids is carried out by passing the product to be purified through carbon sorbent with volumetric sorption space of 0.7-0.9 cubic cm/g followed by rectification of the resulting product and passing the rectificate through sorbent over contact period of less than 20 minutes. EFFECT: more efficient purification method.

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RU 2 091 363 C1

Authors

Orlov A.P.

Shchavelev V.B.

Kopejkina N.V.

Pimkin V.G.

Zubashvili G.M.

Dates

1997-09-27—Published

1995-04-11—Filed

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