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2 077 479

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C1

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IPC

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Application

92011527/25, 1992-11-30

(22)

Actual filing date

1992-11-30

(45)

Published

1997-04-20

(72)

Inventor

Ivakhnjuk G.K.Babkin O.Eh.Nechaev A.B.Glukharev N.F.Levinson V.G.Shtabnoj V.A.

(73)

Holder

Aktsionernoe Obshchestvo Zakrytogo Tipa

METHOD OF PREPARING ACTIVATED CARBON Russian patent published in 1997 - IPC

Abstract RU 2077479 C1

FIELD: sorbent production. SUBSTANCE: particles of styrene/divinylbenzene copolymer is sulfated with sulfuric acid, transformed to gel state, subjected to liquid-phase oxidation with oxygen accompanied with binding of 0.3-0.5 wt % of oxygen, whereupon material is dehydrated and destroyed particles are removed. Remaining particles are subjected to pyrolysis and steam activation. EFFECT: improved procedure. 1 tbl

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RU 2 077 479 C1

Authors

Ivakhnjuk G.K.

Babkin O.Eh.

Nechaev A.B.

Glukharev N.F.

Levinson V.G.

Shtabnoj V.A.

Dates

1997-04-20—Published

1992-11-30—Filed

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