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2 165 888

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Application

99117671/12, 1999-08-12

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Start date

1999-08-12

(22)

Actual filing date

1999-08-12

(45)

Published

2001-04-27

(72)

Inventor

Anikeev V.I.Dashkevich R.Ja.Kirko V.I.Ostrovljanchik V.Ja.Shmargunenko N.S.

(73)

Holder

Nauchno-Issledovatel'Skij Fiziko-Tekhnicheskij Institut

METHOD OF OBTAINING ALUMINA FROM NEPHELINE STOCK Russian patent published in 2001 - IPC

Abstract RU 2165888 C1

FIELD: aluminum production. SUBSTANCE: method includes preparing charge from nepheline stock, limestone, and soda-potash solution. To the charge, kaolin clays in amounts 1-50% are added as low-iron aluminosilicate additive. Charge is caked and cake leached. EFFECT: increased yield of alumina. 3 tbl

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RU 2 165 888 C1

Authors

Anikeev V.I.

Dashkevich R.Ja.

Kirko V.I.

Ostrovljanchik V.Ja.

Shmargunenko N.S.

Dates

2001-04-27—Published

1999-08-12—Filed

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