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2 147 011

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IPC

(21) (22)

Application

98107554/12, 1998-04-21

(24)

Start date

1998-04-21

(22)

Actual filing date

1998-04-21

(45)

Published

2000-03-27

(72)

Inventor

Chernov V.S.Chistjakov A.A.Ehntenteev A.Z.Vakhrushev A.M.Chujanov V.G.Sof'In A.K.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo

POTASSIUM CHLORIDE PRODUCTION METHOD Russian patent published in 2000 - IPC

Abstract RU 2147011 C1

FIELD: reprocessing of potassium ores, in particular, production of mineral fertilizers. SUBSTANCE: method involves grinding, desliming potassium ore; subjecting it to flotation and dehydration; drying concentrate; separating small fraction from main selwynite flotation feed; desliming together with ground ore; returning for flotation. EFFECT: increased efficiency by enhanced extraction of potassium chloride and improved quality of concentrate. 1 tbl, 1 dwg

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RU 2 147 011 C1

Authors

Chernov V.S.

Chistjakov A.A.

Ehntenteev A.Z.

Vakhrushev A.M.

Chujanov V.G.

Sof'In A.K.

Dates

2000-03-27—Published

1998-04-21—Filed