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2 081 231

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C1

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IPC

(21) (22)

Application

94041996/12, 1994-11-22

(22)

Actual filing date

1994-11-22

(45)

Published

1997-06-10

(72)

Inventor

Kanarskij A.V.Platitsyna N.V.Ter-Oganesjan G.Sh.

(73)

Holder

Aktsionernoe Obshchestvo Nauchno-Issledovatel'Skij Institut Tselljulozno-Bumazhnoj Promyshlennosti"

METHOD OF PRODUCTION OF FILTER MEDIUM BASED ON COTTON CELLULOSE AND POWDERY SORBENT Russian patent published in 1997 - IPC

Abstract RU 2081231 C1

FIELD: wood-pulp and paper industry; production of filter paper and cardboard applicable in air drying and cleaning from mechanical and other foreign impurities. SUBSTANCE: the offered methods includes milling of cellulose, its mixing with sorbent, sheet formation, pressing and drying. Sheet after pressing is treated by impregnation with chlorides of metals, for instance, lithium or calcium up to their content in the sheet amounting to 5-12% of material mass, and then, drying to the preset percentage. EFFECT: higher efficiency. 1 cl, 1 tbl

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RU 2 081 231 C1

Authors

Kanarskij A.V.

Platitsyna N.V.

Ter-Oganesjan G.Sh.

Dates

1997-06-10—Published

1994-11-22—Filed

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