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2 085 492

(13)

C1

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IPC

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Application

94028192/25, 1994-07-27

(22)

Actual filing date

1994-07-27

(45)

Published

1997-07-27

(72)

Inventor

Nasyrov G.Z.Nemets N.V.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa Aljuminievo-Magnievyj Institut"

METHOD OF PROCESSING ALUNITE OR ALKALINESS ALUMINOSILICATE ORES TO ALUMINIUM-POTASSIUM ALUM AND ALUMINIUM CHLORIDE Russian patent published in 1997 - IPC

Abstract RU 2085492 C1

FIELD: chemical technology, inorganic chemistry. SUBSTANCE: crushed ore os subjected for roasting and then treated with sulfuric acid solution. Obtained solution is separated from ore solid residue and aluminium-potassium alum is crystallized from solution by addition of potassium chloride at solution cooling. Potassium chloride is dosed to solution to bind its to aluminium-potassium alum 70-80% free aluminium sulfate and obtain solution containing aluminium chloride. EFFECT: improved method of ore processing.

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RU 2 085 492 C1

Authors

Nasyrov G.Z.

Nemets N.V.

Dates

1997-07-27—Published

1994-07-27—Filed

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