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2 041 892

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(51)

IPC

(21) (22)

Application

4950463/05, 1991-06-26

(22)

Actual filing date

1991-06-26

(45)

Published

1995-08-20

(72)

Inventor

Skakal'Skaja L.I.Fajdel' G.I.Britsina T.A.Polunina O.P.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa Institut Plasticheskikh Mass Im.G.S.Petrova S Opytnym Moskovskim Zavodom Plastmass"

PROCESS FOR PREPARING WEAK BASE ANION EXCHANGE MEMBRANE Russian patent published in 1995 - IPC

Abstract RU 2041892 C1

FIELD: recovery of mineral acids from solutions. SUBSTANCE: 30.3-35.6 wt 2-methyl-5-vinylpyridine, 3.0- 3.6 wt divinyl benzene and 0.6-0.8 wt benzoyl peroxide are polymerized in the presence of 60-66 wt fluoroplastic-26. The resulting product is homogenized and dispersed in an organic solvent and a film is moulded from this organic dispersion. EFFECT: improved recovery process. 1 tbl

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RU 2 041 892 C1

Authors

Skakal'Skaja L.I.

Fajdel' G.I.

Britsina T.A.

Polunina O.P.

Dates

1995-08-20—Published

1991-06-26—Filed