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2 262 483

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(51)

IPC

(21) (22)

Application

2004115169/15, 2004-05-19

(24)

Start date

2004-05-19

(22)

Actual filing date

2004-05-19

(45)

Published

2005-10-20

(72)

Inventor

Shchelkonogov A.A.Frejdlina R.G.Guljakin A.I.Shchelkonogov M.A.Saburov L.N.

(73)

Holder

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

SYNTHETIC CARNALLITE PREPARATION METHOD Russian patent published in 2005 - IPC

Abstract RU 2262483 C1

FIELD: nonferrous metallurgy.

SUBSTANCE: invention is dealing with preparation of magnesium chloride feed for electrolytic production of magnesium and chlorine. In order to obtain synthetic carnallite, magnesium chloride is first mixed with potassium chloride-containing reagent including magnesium oxide followed by dehydration of resulting mixture. Novelty resides in additionally introducing aqueous hydrochloric acid when mixing the two solutions so that mixture contains at least 2 g hydrogen chloride per 1 g magnesium oxide.

EFFECT: enabled preparation of synthetic carnallite with low magnesium oxide content.

2 cl

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RU 2 262 483 C1

Authors

Shchelkonogov A.A.

Frejdlina R.G.

Guljakin A.I.

Shchelkonogov M.A.

Saburov L.N.

Dates

2005-10-20—Published

2004-05-19—Filed