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2 031 837

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C1

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IPC

(21) (22)

Application

93013358/26, 1993-03-15

(22)

Actual filing date

1993-03-15

(45)

Published

1995-03-27

(72)

Inventor

Nagornaja G.A.Koroleva L.I.Smirnov V.F.Rozhnovskaja G.G.Shipov V.B.Gostev V.S.

(73)

Holder

Ehlektrostal'Skoe Nauchno-Proizvodstvennoe Ob"Edinenie

METHOD OF CHARCOAL PREPARING Russian patent published in 1995 - IPC

Abstract RU 2031837 C1

FIELD: chemical technology. SUBSTANCE: cellolignin or lignin is mixed with ortho-phosphoric acid solution taken at concentration 0.3-1.0% (as a dry matter). Mixture is dried up to humidity 5-12% and briquetted at heating under pressure keeping. Briquettes were carbonized at temperature rate rise 20-50 C/h up to 500-700 C, crushed and activated up to total pore volume attainment 0,8-1,2 сm3/g. EFFECT: improved method of charcoal preparing. 5 tbl

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RU 2 031 837 C1

Authors

Nagornaja G.A.

Koroleva L.I.

Smirnov V.F.

Rozhnovskaja G.G.

Shipov V.B.

Gostev V.S.

Dates

1995-03-27—Published

1993-03-15—Filed

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