Production of carbon

Details Production of carbon Production of carbon

C - Chemistry, Metallurgy

01

B

252/26

C01B 31/10 (2006.01) B01J 21/18 (2006.01) C01B 31/14 (2006.01)

Patent

CA 1075664

ABSTRACT Granular active carbon having satisfactory absorbency and hardness characteristics and having a high proportion of its porosity in the below 2000 .ANG. 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°C to 250°C between unheated pressure rolls.

261788

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