PROCESS FOR PRODUCTION OF FLYING ASHES FOR FIXING OF SULFUR INSIDE FLAME UTILIZABLE DIRECTLY TOO

摘要

Sulphur is immobilized within flames and immediately utilizable fly-ash is produced, when an aq. soluble calcium cpd contg. soln or a slurry is added to coal or to a coal-water mixt, in such a proportion that the Ca/s molar ratio should be 1-2 and the CaO/(SiO2+AlO3) wt ratio should be 0.5-1.5. The prepd mixt are subsequently fired