PRODUCTION OF COAL LIQUEFACTION CATALYST

摘要

PROBLEM TO BE SOLVED: To provide a producing method of a coal liquefaction catalyst in which the catalytically active mineral material can be recovered from the reaction residue by an ammonia water iron precipitation method (AWIP) and can be reused while clogging of plant with the residue, etc., is prevented. SOLUTION: In the coal liquefaction process to liquefy coal by the reaction of coal 6 and hydrogen 9 in the presence of an ion-sulfur coal liquefaction catalyst and to distill the obtd. reaction liquid to recover the coal liquefaction oil 12, 14, sulfuric acid 15 is added to a catalyst material comprising the residue 13 containing an iron component obtd. by distillation. The obth. iron sulfate soln. 16 is reacted with ammonia water 10 in the presence of a coal slurry 8 prepared by dispersing fine particles of coal in a solvent so as to obtain a coal slurry 7 containing coal with deposition of the catalyst comprising the catalyst with iron highly dispersed to be used for the iron-sulfur coal liquefaction catalyst.