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2 017 688

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C1

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IPC

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Application

5003369/02, 1991-07-08

(22)

Actual filing date

1991-07-08

(45)

Published

1994-08-15

(72)

Inventor

Aleksandrova I.L.Karaguljan L.I.Klantsov V.F.Miljutkin V.S.Vjazkov V.A.

(73)

Holder

Groznenskij Neftjanoj Nauchno-Issledovatel'Skij Institut

METHOD OF AMORPHOUS ALUMINOSILICATE FILLER MAKING Russian patent published in 1994 - IPC

Abstract RU 2017688 C1

FIELD: inorganic chemistry. SUBSTANCE: aluminium salt containing cations Al3+ (aluminium sulfate) is added to the solution of sodium silicate. Before addition aluminium sulfate is mixed with ammonium nitrate solution (concentration is 40-60 g/l as NH4NO3) following by precipitation of aluminosilicate hydrogel at pH 9.4-9.7, filtration, drying and grinding. Method is used for production of amorphous aluminosilicates. EFFECT: improved method of production. 1 tbl

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RU 2 017 688 C1

Authors

Aleksandrova I.L.

Karaguljan L.I.

Klantsov V.F.

Miljutkin V.S.

Vjazkov V.A.

Dates

1994-08-15—Published

1991-07-08—Filed

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