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2 312 815

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IPC

C01F7/38(2006-01-01)

C22B7/00(2006-01-01)

(21) (22)

Application

2006101009/15, 2006-01-10

(24)

Start date

2006-01-10

(22)

Actual filing date

2006-01-10

(45)

Published

2007-12-20

(72)

Inventor

Medvedev Gennadij PanteleevichDashkevich Raisa JakovlevnaKulikov Boris PetrovichAnikeev Vladimir Il'Ich

(73)

Holder

Medvedev Gennadij PanteleevichDashkevich Raisa Jakovlevna

ALUMINUM-CONTAINING RAW MATERIAL PROCESSING METHOD Russian patent published in 2007 - IPC C01F7/38 C22B7/00

Abstract RU 2312815 C2

FIELD: nonferrous metallurgy.

SUBSTANCE: invention is directed to production of alumina and can be used for processing of aluminum-fluorine-carbon-sulfur-containing aluminum production waste, which is considered as man-made variety of aluminum-containing raw material. Processing method comprises preparing charge from aluminum-containing material (above mentioned waste) and limestone followed by caking at 550-800°C and leaching cake, wherein charge is characterized by molar ratios Ca:F₂=0.8-1.2 and Ca:S=1.0.

EFFECT: reduced caking temperature and fuel consumption, and improved quality of cake.

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RU 2 312 815 C2

Authors

Medvedev Gennadij Panteleevich

Dashkevich Raisa Jakovlevna

Kulikov Boris Petrovich

Anikeev Vladimir Il'Ich

Dates

2007-12-20—Published

2006-01-10—Filed