METHOD FOR PRODUCTION OF WHITE BLACK Russian patent published in 1996 - IPC

Abstract RU 2054379 C1

FIELD: tire and industrial rubber industry. SUBSTANCE: method for production of white black includes reaction of silicon-fluorine-containing solution with 20-35 mas.% of ammonia water of total quantity of solution and mixing. Formed suspension of silica gel is subjected to reaction with remaining quantity of ammonia water at temperature of 65-80 C. Sediment is separated, washed and dried. Obtained product features high specific surface. EFFECT: higher efficiency. 1 tbl

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RU 2 054 379 C1

Authors

Cherevina T.M.

Volkova O.V.

Perebejnos A.A.

Sajko I.G.

Krasil'Nikova M.K.

Dates

1996-02-20—Published

1992-02-10—Filed