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2 081 061

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C1

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IPC

(21) (22)

Application

4937083/25, 1991-05-16

(22)

Actual filing date

1991-05-16

(45)

Published

1997-06-10

(72)

Inventor

Ishchenko L.M.Kosolapova A.P.Zozulja V.I.

(73)

Holder

Groznenskij Neftjanoj Nauchno-Issledovatel'Skij Institut

METHOD OF ZEOLITE TYPE A OR X PRODUCING Russian patent published in 1997 - IPC

Abstract RU 2081061 C1

FIELD: chemical technology. SUBSTANCE: powder-like waste from aluminosilicate catalysts or silica gel production (dry matter content is 93-98 wt. -%) taken at amount of silicon dioxide 200-280 g/l in mixture is treated with sodium hydroxide solution. Then sodium aluminate solution is added followed by hydrothermic mixture crystallization. Product is separated, washed and dried. Product is used as absorbent and catalyst. EFFECT: higher efficiency. 1 tbl

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RU 2 081 061 C1

Authors

Ishchenko L.M.

Kosolapova A.P.

Zozulja V.I.

Dates

1997-06-10—Published

1991-05-16—Filed

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