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2 130 037

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Application

96109727/04, 1996-05-14

(22)

Actual filing date

1996-05-14

(45)

Published

1999-05-10

(72)

Inventor

Dobrovinskij V.E.Komarov S.M.Pautov P.G.Bespalov V.P.Andreev V.A.Malygina K.S.Shamsutdinov V.G.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Nauchno-Issledovatel'Skij Institut

BUTYL RUBBER ISOLATION METHOD Russian patent published in 1999 - IPC

Abstract RU 2130037 C1

FIELD: rubber industry. SUBSTANCE: butyl rubber polymerizate is mixed with water steam and water in crumb- former to give pulp which is then degassed in two consecutive degassers, the second of them being of vacuum type. After each of the two degassers, there are two process streams. Streams containing fine rubber crumb fractions are directed into crumb-formers. The second stream from the first degasser containing coarser crumb is directed into the second degasser. The second stream from the second degasser passing concentrator and containing coarser crumb is directed into rubber crumb neutralizer. EFFECT: improved process flowsheet. 4 cl, 2 dwg, 1 tbl, 4 ex

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RU 2 130 037 C1

Authors

Dobrovinskij V.E.

Komarov S.M.

Pautov P.G.

Bespalov V.P.

Andreev V.A.

Malygina K.S.

Shamsutdinov V.G.

Dates

1999-05-10—Published

1996-05-14—Filed

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