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2 473 393

(13)

(51)

IPC

B03B7/00(2006-01-01)

(21) (22)

Application

2011119711/03, 2011-05-16

(24)

Start date

2011-05-16

(22)

Actual filing date

2011-05-16

(45)

Published

2013-01-27

(72)

Inventor

Safrygin Jurij StepanovichOsipova Galina VladimirovnaBuksha Jurij VladimirovichTimofeev Vladimir Ivanovich

(73)

Holder

Zakrytoe Aktsionernoe Obshchestvo Vnii Galurgii Vnii Galurgii)

METHOD OF MAKING POTASSIUM CHLORIDE Russian patent published in 2013 - IPC B03B7/00

Abstract RU 2473393 C1

FIELD: process engineering.

SUBSTANCE: invention relates to producing potassium chloride from sylvinite ores by their flotation. Proposed method comprises flotation of sylvinite ores, extraction of halite waste pile, settling, flushing and filtration of clay-salt slime. Filtration is performed at settling and filtering centrifuge, produced slime is mixed with extracted halite waste pile to make homogeneous mass. then, mix is cooled to below minus 20 degrees Centigrade and stored at exposed sites.

EFFECT: simplified process.

3 ex

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RU 2 473 393 C1

Authors

Safrygin Jurij Stepanovich

Osipova Galina Vladimirovna

Buksha Jurij Vladimirovich

Timofeev Vladimir Ivanovich

Dates

2013-01-27—Published

2011-05-16—Filed