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2 354 614

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(51)

IPC

C02F11/14(2006-01-01)

C02F1/54(2006-01-01)

B01D21/01(2006-01-01)

(21) (22)

Application

2007145610/15, 2007-12-11

(24)

Start date

2007-12-11

(22)

Actual filing date

2007-12-11

(45)

Published

2009-05-10

(72)

Inventor

Iokhan Fridrikh KnauehrLobanov Fedor IvanovichKarmazinov Feliks VladimirovichKhartan Khans-Georg

(73)

Holder

Lobanov Fedor Ivanovich

SUSPENSION DEHYDRATION PROCEDURE Russian patent published in 2009 - IPC C02F11/14 C02F1/54 B01D21/01

Abstract RU 2354614 C1

FIELD: chemistry.

SUBSTANCE: procedure involves suspension flocculation herewith solid and liquid phases are isolated. Besides, the procedure ensures suspension pre-homogenisation in an agitation tank at rate of suspension rotation 2900 rpm or higher. Then it is mixed with flocculant in the agitation tank at rate of rotation 2900 rpm or higher. According to the preferential version of the procedure, the stage of suspension homogenisation involves addition of alkali diethyldithiocarbonate and/or dimethyldithiourethane.

EFFECT: improved efficiency of water and solid phase isolation.

7 cl, 4 ex

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RU 2 354 614 C1

Authors

Iokhan Fridrikh Knauehr

Lobanov Fedor Ivanovich

Karmazinov Feliks Vladimirovich

Khartan Khans-Georg

Dates

2009-05-10—Published

2007-12-11—Filed