Production of carbon from coal granules prepared in a fluid ener

Details Production of carbon from coal granules prepared in a fluid ener Production of carbon from coal granules prepared in a fluid ener

1976-09-21

1978-07-25

Konopka, P. E.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

241 1, 252445, C01B 3110, C01B 3114, B01J 2118

Patent

active

041028120

ABSTRACT:
Granular active carbon having satisfactory adsorbency and hardness characteristics and having a high proportion of its porosity in the below 2000 A range is produced from granules prepared from coal fluid energy milled until not more than 1% of the particles have diameters above 38 microns. The coal has a low ash and high carbon content and may have a British Standard Swelling number from 2 to 7 although it is preferred for the volatile matter content of the coal to be not more than 40% on a dry ash free basis. The granules may be produced by compacting milled particles having a temperature of from 50.degree. C to 250.degree. C between unheated pressure rolls.

REFERENCES:
patent: 2550390 (1951-04-01), Stephanoff
patent: 3539467 (1970-11-01), Bozarth et al.
patent: 3843559 (1974-10-01), Repik
patent: 3951856 (1976-04-01), Repik
patent: 3976597 (1976-08-01), Repik

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