Highly microporous carbons and process of manufacture

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

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502426, 502427, B01J 2002

Patent

active

059654830

ABSTRACT:
A process for further chemical activation of activated carbon is disclosed comprising activation of an active carbon precursor material with a potassium hydroxide solution, pre-drying the blend to 5% to 15% moisture content, activating this blend at from about 650.degree. to about 1100.degree. C., and acid washing and drying the microporous activated carbon product, which is characterized by greater than 50% of its total pore volume comprising pores of from about 8.ANG. to 20.ANG. in width and greater than 70% of its total pore volume comprising pores of less than 20.ANG. in width and greater than 95% of its total pore volume comprising pores of less than 50.ANG. in width.

REFERENCES:
patent: 4039473 (1977-08-01), Schafer
patent: 5064805 (1991-11-01), Otowa
patent: 5162286 (1992-11-01), MacDowall
patent: 5416056 (1995-05-01), Baker

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