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IPC

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Application

2004103446/15, 2004-02-05

(24)

Start date

2004-02-05

(22)

Actual filing date

2004-02-05

(45)

Published

2005-08-27

(72)

Inventor

Frejdlina R.G.Guljakin A.I.Saburov L.N.Ovchinnikova N.B.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Nauchno-Issledovatel'Skij I Proektnyj Institut Titana I Magnija"

MAGNESIUM-CONTAINING ORE PROCESSING METHOD Russian patent published in 2005 - IPC

Abstract RU 2259320 C1

FIELD: mining industry.

SUBSTANCE: processing consists in leaching ore with aqueous hydrochloric acid followed by purifying manganese chloride solution via neutralization to remove impurities, concentrating solution, synthesis of carnallite, concentrating and separating synthetic carnallite from mother liquor, and recycling mother liquor into carnallite synthesis stage. Part of mother solution, prior to be recycled, is treated with magnesium sulfate to remove calcium compounds.

EFFECT: increased purity of produced carnallite.

6 cl

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RU 2 259 320 C1

Authors

Frejdlina R.G.

Guljakin A.I.

Saburov L.N.

Ovchinnikova N.B.

Dates

2005-08-27—Published

2004-02-05—Filed