Process for preparing activated carbon

Catalyst – solid sorbent – or support therefor: product or process – Solid sorbent – Free carbon containing

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502437, C01B 3112, B01J 2020

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active

049372238

ABSTRACT:
A process for preparing activated carbon, which comprises adding alkali to lignin or its derivative, followed by heat treatment to obtain activated carbon.

REFERENCES:
patent: 2216757 (1940-10-01), Scheffler
patent: 4082694 (1978-04-01), Wennerberg et al.
Studies on Active Carbon Made from Spent Sulfite Liquor (I), P 731.2:U 661.183.2, Sadakichi Kishimoto, Kenji Mori.
J. of the Korean Chemical Society, vol. 20, No. 2, 1976, pp. 153-157, Application of Lignin (I), "Preparation of Active Carbon and Its Adsorptivity" Park, Lee and Lee.
Nippon Kagaku Kaishi, J. of the Chemical Society of Japan, Chemistry and Industrial Chemistry, 1988.
STN International, CA File Search Results, pp. 32, 33, 42, Jan. 17, 1989 ("Microencapsulation of Dispersions of, With Cellulosic Gel Matrix").

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