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2 069 176

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Application

93031534/26, 1993-06-10

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Actual filing date

1993-06-10

(45)

Published

1996-11-20

(72)

Inventor

Khusnutdinov V.A.Akhmetov T.G.Tagiev N.G.Gonjukh V.M.Kornilov A.V.Grigor'Ev A.L.Vedernikov N.N.

(73)

Holder

Tsentral'Nyj Nauchno-Issledovatel'Skij Institut Geologii Nerudnykh Poleznykh Iskopaemykh

METHOD OF PREPARING MAGNESIUM HYDROXIDE Russian patent published in 1996 - IPC

Abstract RU 2069176 C1

FIELD: chemical engineering. SUBSTANCE: magnesium hydroxide is prepared from waste of magnesium-containing raw materials. For this purpose, magnesium hydroxide is precipitated from magnesium nitrate solution with ammonium hydroxide in presence of urea at stirrer rotation speed 270 r/min and duration of ammonium hydroxide addition at least 20 min, urea concentration being not greater than 5 wt %. EFFECT: reduced cost and accelerated filtration of final product. 3 cl, 1 tbl

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RU 2 069 176 C1

Authors

Khusnutdinov V.A.

Akhmetov T.G.

Tagiev N.G.

Gonjukh V.M.

Kornilov A.V.

Grigor'Ev A.L.

Vedernikov N.N.

Dates

1996-11-20—Published

1993-06-10—Filed

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