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2 256 482

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(51)

IPC

(21) (22)

Application

2004108764/15, 2004-03-24

(24)

Start date

2004-03-24

(22)

Actual filing date

2004-03-24

(45)

Published

2005-07-20

(72)

Inventor

Petrov E.G.Chepelev A.D.Petrova A.G.Semenov E.V.

(73)

Holder

Gosudarstvennoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Gosudarstvennyj Universitet Putej Soobshchenija Ministerstva Putej Soobshchenija Rossijskoj Federatsii"Petrov Evgenij Georgievich

METHOD OF PRODUCING GRANULATED FILTERING MATERIAL Russian patent published in 2005 - IPC

Abstract RU 2256482 C1

FIELD: filtering material for liquid and gaseous fluids.

SUBSTANCE: method comprises introducing suspension of powder-like dolomite (carbonate salt of magnesium and calcium) in amount of 10-20 mass % of clay mass, thermal dehydration, pressing the mixture, and roasting at a temperature of 800-900°C. The dehydrated mixture is pressed at a pressure of 200-350 kg/cm².

EFFECT: enhanced efficiency of purifying water.

1 cl, 3 tbl

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RU 2 256 482 C1

Authors

Petrov E.G.

Chepelev A.D.

Petrova A.G.

Semenov E.V.

Dates

2005-07-20—Published

2004-03-24—Filed