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2 218 452

(13)

(51)

IPC

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Application

2001126452/02, 2001-09-28

(24)

Start date

2001-09-28

(22)

Actual filing date

2001-09-28

(45)

Published

2003-12-10

(72)

Inventor

Frejdlina R.G.Teterin V.V.Saburov L.N.Guljakin A.I.Skorodumov V.A.

(73)

Holder

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

WAY TO WIN MAGNESIUM FROM SYNTHETIC CARNALLITE Russian patent published in 2003 - IPC

Abstract RU 2218452 C2

FIELD: non- ferrous metallurgy, winning of magnesium by electrolysis of molten chlorides. SUBSTANCE: proposed way includes crystallization of spent electrolyte removed from electrolyzer, its crushing, mixing with chlorine-magnesium solution and synthesis of carnallite. Then its dewatering with extraction of solid anhydrous and/or deeply dewatered carnallite and its loading for electrolysis. In correspondence with invention spent electrolyte is endured in molten state prior to crystallization with production of clarified part directed for crystallization, bottom residue and melt enriched with oxides. EFFECT: increased quality of synthetic carnallite, additional recovery of magnesium for production of potash-magnesium fertilizers and/or anti-sleet preparation. 4 cl

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RU 2 218 452 C2

Authors

Frejdlina R.G.

Teterin V.V.

Saburov L.N.

Guljakin A.I.

Skorodumov V.A.

Dates

2003-12-10—Published

2001-09-28—Filed