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2 006 285

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C1

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IPC

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Application

92000849/26, 1992-10-15

(22)

Actual filing date

1992-10-15

(45)

Published

1994-01-30

(72)

Inventor

Chvokin N.A.Pavelko V.Z.Chernyshev V.I.Kunitskij V.Ja.Firsov O.P.Skvirskij M.E.Shevchuk T.V.

(73)

Holder

Nauchno-Proizvodstvennoe Ob"Edinenie

METHOD OF PRODUCING SORBENT FOR ABSORPTION OF PLATINOIDES Russian patent published in 1994 - IPC

Abstract RU 2006285 C1

FIELD: sorbent production. SUBSTANCE: method involves mixing calcium and aluminium compounds, granulation and heat treatment. Calcium oxide or calcium carbonate is mixed with aluminium oxide. Thus prepared mixture is calcined at 1300-1700 C and ground. Then calcium carbonate or calcium carbide mixed with mineral fiber (its quantity being 0.3-4 mass % ) is added. This mixture is additionally ground before its granulation. Granules are affected by hydrothermal treating, the process takes place before heat treatment of granules is carried out. Ratio of above mentioned fiber's length to its diameter is 50-500. EFFECT: improves efficiency of the method. 5 cl, 1 tbl

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RU 2 006 285 C1

Authors

Chvokin N.A.

Pavelko V.Z.

Chernyshev V.I.

Kunitskij V.Ja.

Firsov O.P.

Skvirskij M.E.

Shevchuk T.V.

Dates

1994-01-30—Published

1992-10-15—Filed

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