PRODUCTION OF ABSORBENT FOR SULFUR COMPOUND

摘要

PURPOSE:To improve heat resistance of an absorbent for sulfur compd. by extrusion-molding a mixture which consists of titanium oxide fired at >=800 deg.C and iron oxide as a main component and is blended with zirconium compd. and calcining the molded form at 500 deg.C or more. CONSTITUTION:Zirconium compd. is blended as a molding auxiliary with a mixture consisting of titanium oxide fired at high temp. not lower than 800 deg.C and iron oxide as a main component. Then this mixture is extrusion-molded and the molded form of an absorbent for sulfur compd. is produced by calcining this molded form at 500 deg.C or more. As zirconium compd. being the molding auxiliary, zirconium oxide, zirconium nitrate and zirconium hydroxide, etc., are used and the blending amount is preferably regulated to 1-3wt.% expressed in terms of zirconium oxide. Even when the obtained molded form is calcined at high temp., it is not affected by oxidation and its heat resistance is extremely good.