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Application

95100354/04, 1995-01-11

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Actual filing date

1995-01-11

(45)

Published

1997-07-20

(72)

Inventor

Shatalov V.V.Orekhov V.T.Rjabova E.K.Seregina A.M.

(73)

Holder

Vserossijskij Nauchno-Issledovatel'Skij Institut Khimicheskoj Tekhnologii

METHOD OF CLEANING COOLANTS OF ETHANE AND PROPANE SERIES FROM ACIDIC IMPURITIES Russian patent published in 1997 - IPC

Abstract RU 2084435 C1

FIELD: cooling agents. SUBSTANCE: for the first time, vinylpyridine-based special destination ampholytes having specific characteristics when absorbing halogen-substituted alifatic acids and their anhydrides are utilized for cleaning coolants. Cleaning is performed as a single-step process and sorbent can undergo multiple sorption-regeneration cycles. Cleaned coolants pass testing for "mirror", are stable, and do not "sour" when exposed to light for long time (more than 6 months). EFFECT: simplified and enhanced cleaning process. 1 tbl, 2 dwg

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RU 2 084 435 C1

Authors

Shatalov V.V.

Orekhov V.T.

Rjabova E.K.

Seregina A.M.

Dates

1997-07-20—Published

1995-01-11—Filed

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