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2 067 590

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Application

93040781/04, 1993-08-10

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Actual filing date

1993-08-10

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Published

1996-10-10

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Inventor

Nikulin S.S.Sidorov S.L.Shapovalova N.N.Kudrjavtsev L.D.Molodyka A.V.Garshin A.P.Naumova Ju.M.Nenakhov V.S.Raspopov I.V.Obraztsov P.V.

(73)

Holder

Nikulin Sergej Savvovich

PROCESS FOR RECOVERING OIL-FILLED BUTADIENE-(α-METHYL) STURENE RUBBER Russian patent published in 1996 - IPC

Abstract RU 2067590 C1

FIELD: chemical industry. SUBSTANCE: as oil-filled butadiene-(a-methyl) styrene rubber is recovered, rubber latex is mixed with preliminarily prepared oil oxidant-containing slurry. Polydimethyl diallyl ammonium chloride is added to the oil slurry in amount of 0.5-1.5 kg/t of rubber. Aqueous sodium chloride solution with sodium chloride as dry matter in amount of 20-50 kg/t of rubber, acidified serum to adjust pH of the medium to 4.5-5.5 and mineral acid to adjust pH of the total mixture to 3.5-4.5 are subsequently added. Rubber crumb is then recovered, the claimed process uses the recycle of serum. EFFECT: more efficient recovery process. 2 tbl

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RU 2 067 590 C1

Authors

Nikulin S.S.

Sidorov S.L.

Shapovalova N.N.

Kudrjavtsev L.D.

Molodyka A.V.

Garshin A.P.

Naumova Ju.M.

Nenakhov V.S.

Raspopov I.V.

Obraztsov P.V.

Dates

1996-10-10—Published

1993-08-10—Filed

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