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2 165 798

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IPC

(21) (22)

Application

99118841/03, 1999-09-01

(24)

Start date

1999-09-01

(22)

Actual filing date

1999-09-01

(45)

Published

2001-04-27

(72)

Inventor

Titkov S.N.Vakhrushev A.M.Chistjakov A.A.Gurkova T.M.Mikhajlova I.A.Chujanov V.G.Sof'In A.K.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo

POTASSIUM ORE FLOTATION CONCENTRATION PROCESS Russian patent published in 2001 - IPC

Abstract RU 2165798 C1

FIELD: ore dressing. SUBSTANCE: method includes treatment of sylvite flotation feed with depressant and selector and consequent potassium chloride flotation. Process involves, as depressant, modified urea-formaldehyde resin with weight ratios urea/formaldehyde/polyethylenimine between 1:1.12: 0.05 and 1: 2.70: 0.30. EFFECT: improved flotability of useful mineral in presence of clay-carbonate slimes. 1 tbl, 2 ex

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RU 2 165 798 C1

Authors

Titkov S.N.

Vakhrushev A.M.

Chistjakov A.A.

Gurkova T.M.

Mikhajlova I.A.

Chujanov V.G.

Sof'In A.K.

Dates

2001-04-27—Published

1999-09-01—Filed