Recovery of alkali metal constituents from coal conversion...

Details Recovery of alkali metal constituents from coal conversion... Recovery of alkali metal constituents from coal conversion...

C - Chemistry, Metallurgy

10

G

48/32, 196/6.1

C10G 1/04 (2006.01) C10G 1/08 (2006.01) C10J 3/00 (2006.01) C10J 3/54 (2006.01)

Patent

CA 1146892

ABSTRACT OF THE DISCLOSURE A coal gasification operation (32) or similar conversion process is carried out in the presence of an alkali metal-containing catalyst producing char particles containing alkali metal residues. Alkali metal con- the particles (45, 55) to increase their size and density and then leaching the particles of increase size and density with water, to extract the water-soluble alkali metal constituents. C

366368

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