High purity activated carbon produced by calcining acid leached

Details High purity activated carbon produced by calcining acid leached High purity activated carbon produced by calcining acid leached

1976-12-20

1978-04-11

Douglas, Winston A.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

423449, C01B 3112, B01J 2118

Patent

active

040838013

ABSTRACT:
A process for the production of activated carbon from coal comprises contacting the coal with mineral acids to leach impurities therefrom and removing the leached coal from the mineral acids. Activated carbon is produced by calcining the leached coal at a temperature in the range of 550.degree. to 775.degree. C.

REFERENCES:
patent: 2040931 (1936-05-01), Fuchs
patent: 2312707 (1943-03-01), Fuchs
patent: 3630959 (1971-12-01), Kiikka
patent: 3876505 (1975-04-01), Stoneburner
patent: 3884830 (1975-05-01), Grant
patent: 3993455 (1976-11-01), Reggel et al.
patent: 3998604 (1976-12-01), Hinkley
patent: 4014817 (1977-03-01), Johnson et al.

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