METHOD OF HIGH DISPERSED SILICON DIOXIDE PRODUCING Russian patent published in 1994 - IPC

Abstract RU 2022923 C1

FIELD: chemical technology. SUBSTANCE: solution of ammonium silicofluoride is dispersed into ammonia water flow at Weber criteria value = (0.0-20) x We = (0,09 - 20) × 10⁴. Prepared suspension is kept in the flow for 0.5-20 s and filtered off. Initial mixture is heated preliminary up to 40-60 C. Product is used as a mineral filler in tire, rubber and other branches of industry. EFFECT: improved method of silicon dioxide dispersion producing. 2 cl, 1 tbl

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RU 2 022 923 C1

Authors

Gromova I.N.

Murashkevich A.N.

Shugaj A.V.

Kuznetsov V.I.

Nikopenzius P.A.

Dates

1994-11-15—Published

1991-05-22—Filed