Process for the production of carbon molecular sieves

Details Process for the production of carbon molecular sieves Process for the production of carbon molecular sieves

1981-08-21

1983-12-13

Konopka, P. E.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Inorganic carbon containing

55 68, 55 75, 252444, 264 293, 423445, 423449, B01J 2020, C01B 3108, B01D 5302

Patent

active

044204159

ABSTRACT:
Carbon molecular sieves having excellent oxygen adsorption properties may be obtained from a vinylidene chloride copolymer. The copolymer is carbonized for the removal of its chlorine components and the resulting char is pulverized. Specific amounts of a carbonaceous sintering agent such as coal tar pitch and an organic binder such as microcrystalline cellulose are then added to the pulverized product and the mixture is shaped into pellets. By thermally treating the pellets under specific conditions in a specific manner, carbon molecular sieves having pore diameters suitable for the adsorption of oxygen may be obtained. The molecular sieves are suitable for concentrating nitrogen in air.

REFERENCES:
patent: 3801513 (1974-04-01), Munzner et al.
patent: 4046709 (1977-09-01), Yuki
patent: 4124529 (1978-11-01), Jungten et al.
patent: 4256469 (1981-03-01), Leitger
patent: 4264339 (1981-04-01), Jungten et al.

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