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2 473 467

(13)

(51)

IPC

C01F5/34(2006-01-01)

C25C3/04(2006-01-01)

(21) (22)

Application

2011120568/02, 2011-05-20

(24)

Start date

2011-05-20

(22)

Actual filing date

2011-05-20

(45)

Published

2013-01-27

(72)

Inventor

Lebedev Vladimir AleksandrovichShirev Mikhail Jur'Evich

(73)

Holder

Federal'Noe Gosudarstvennoe Avtonomnoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Ural'Skij Federal'Nyj Universitet Imeni Pervogo Prezidenta Rossii B.N. El'Tsina

METHOD OF OBTAINING SYNTHETIC CARNALLITE Russian patent published in 2013 - IPC C01F5/34 C25C3/04

Abstract RU 2473467 C1

FIELD: chemistry.

SUBSTANCE: invention relates to method of obtaining carnallite from chloro-magnesium solutions. Method includes their purification and concentration, mixing with solid potassium-chlorine-containing waste electrolyte. After mixing, dehydration is performed by heating mixture to content of crystallising water 2-6 moles per 1 mole KCl-MgCl₂ with release of outflowing gases from heating zone. Before mixing, waste electrolyte is heated by gases, isolated from heating zone. Weight ratio of sodium chloride to magnesium chloride is supported 0.78-0.83, and coarseness of waste electrolyte constitutes less than 0.315 mm.

EFFECT: simplification and intensification of the process, enhancement of synthetic carnallite quality and reduction of energy consumption.

1 tbl, 4 ex

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RU 2 473 467 C1

Authors

Lebedev Vladimir Aleksandrovich

Shirev Mikhail Jur'Evich

Dates

2013-01-27—Published

2011-05-20—Filed