Method for the production of activated carbon spheres containing

Details Method for the production of activated carbon spheres containing Method for the production of activated carbon spheres containing

1974-05-28

1976-04-27

Douglas, Winston A.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

210 40, 252421, 252422, 252445, 423244, 423449, C01B 3110, C01B 3102

Patent

active

039533450

ABSTRACT:
Spheres of activated carbon are obtained by adding to 100 parts by weight of pitch 10 to 50 parts by weight of an aromatic solvent compatible with said pitch and 2 to 50% by weight, based on the total weight of said pitch and said aromatic solvent, of a nitrogen-containing compound, melting and mixing them with one another, molding the resultant mixture in the form of spheres, removing the aromatic solvent by means of solvent extraction to convert said spheres into porous pitch spheres containing 2 to 60% by weight of nitrogen, infusibilizing the resultant micro-porous pitch spheres and thereafter activating the infusibilized pitch spheres.

REFERENCES:
patent: 3668110 (1972-06-01), Shea et al.
patent: 3775344 (1973-11-01), Amagi et al.
patent: 3786134 (1974-01-01), Amagi et al.
patent: 3823221 (1974-07-01), Wakefield et al.
patent: 3917806 (1975-11-01), Amagi et al.

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