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2 014 288

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C1

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IPC

(21) (22)

Application

4941467/26, 1991-04-08

(22)

Actual filing date

1991-04-08

(45)

Published

1994-06-15

(72)

Inventor

Gromov S.L.Baranov D.A.Mel'Nikov V.D.

(73)

Holder

Moskovskaja Gosudarstvennaja Akademija Khimicheskogo Mashinostroenija

METHOD FOR DEWATERING SLUDGES Russian patent published in 1994 - IPC

Abstract RU 2014288 C1

FIELD: chemical industry. SUBSTANCE: sludge is separated from filtrate and subjected to pressing out by means of evacuating the underlayer space which is periodically supplied with an inert gas. When pressing out is completed evacuating the underlayer space is stopped and then a vacuum is drawn in the overlayer space with filtrate being simultaneously heated. EFFECT: higher quality of dewatering. 2 cl, 1 tbl

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RU 2 014 288 C1

Authors

Gromov S.L.

Baranov D.A.

Mel'Nikov V.D.

Dates

1994-06-15—Published

1991-04-08—Filed

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