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2 177 908

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IPC

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Application

2000105858/12, 2000-03-10

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Start date

2000-03-10

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Actual filing date

2000-03-10

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Published

2002-01-10

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Inventor

Alekseeva G.N.Demidov V.P.Alifanova N.N.Shipkova N.L.Tonkov L.I.Galkin E.A.Khusainov U.G.Minnibaev A.M.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo

METHOD OF PREPARING COAGULANT BASED ON MIXED ALUMINIUM SALTS Russian patent published in 2002 - IPC

Abstract RU 2177908 C2

FIELD: technology of inorganic substances, more particularly preparation of aluminium hydroxofluorochlorosulfate based coagulant in water preparation, purification of sewage and solutions, or in other industries. SUBSTANCE: method comprises treatment of aluminium hydroxide with sulfuric acid at elevated temperature, maintenance and crystallization of product. Treatment of aluminium hydroxide with sulfuric acid gives aluminium sulfate melt and after it has been maintained, aluminium hydroxochloride solution is added in amount of 0.6-1.0. EFFECT: increased coagulating power of product. 1 ex, 2 tbl

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RU 2 177 908 C2

Authors

Alekseeva G.N.

Demidov V.P.

Alifanova N.N.

Shipkova N.L.

Tonkov L.I.

Galkin E.A.

Khusainov U.G.

Minnibaev A.M.

Dates

2002-01-10—Published

2000-03-10—Filed