Method of producing coal and coal mixtures which are safe to...

Details Method of producing coal and coal mixtures which are safe to... Method of producing coal and coal mixtures which are safe to...

C - Chemistry, Metallurgy

10

L

44/1

C10L 9/08 (2006.01) C10L 9/00 (2006.01)

Patent

CA 1218849

ABSTRACT OF THE DISCLOSURE A method of producing coal or coal mixtures of a fine granular size, especially coal dust, which is safe to store and particularly to transport by road, rail, and sea. The coal comprises up to 10 % volatile constituents, or the coal mixtures comprise one or more components which make up up to 50 % of the weight of the mixture and com- prise up to 15 % volatile constituents, and a residual component or components having up to 10 % volatile con- stituents. The coal or coal mixtures are subjected to a thermal treatment for from 30 seconds to 1 hour at a temperature of between lOO°C and below the ignition temperature of the coal or the coal mixture, or are heated for from 5 to 30 seconds at a temperature above the ignition temperature of the coal or of the mixture to a temperature which is below the ignition temperature.

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