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1 813 266

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IPC

(21) (22)

Application

4906670/33, 1991-02-01

(22)

Actual filing date

1991-02-01

(45)

Published

1994-05-30

(72)

Inventor

Kaprielov S.S.Shejnfel'D A.V.Rabkin V.V.Ivanov F.M.Mijusov S.P.

(73)

Holder

Nauchno-Issledovatel'Skij Proektno-Konstruktorskij I Tekhnologicheskij Institut Betona I Zhelezobetona

METHOD OF PREPARING AQUEOUS SUSPENSION Russian patent published in 1994 - IPC

Abstract SU 1813266 A3

FIELD: preparing aqueous suspension of microsilica. SUBSTANCE: powder microsilica (being waste of ferroalloy production and having specific surface 20 m²/g) is mixed with 0.03-0.3% aqueous solution of nitriletrimethylenephosphoric acid to produce 50-60% suspension. Viscosity thus prepared suspension is 0.8-1.0 P. EFFECT: increases stability and fluidity of suspension, decreases its aggressive action against metal. 1 tbl

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SU 1 813 266 A3

Authors

Kaprielov S.S.

Shejnfel'D A.V.

Rabkin V.V.

Ivanov F.M.

Mijusov S.P.

Dates

1994-05-30—Published

1991-02-01—Filed