Patent ID: 6479421
Filing Date: 2002-11-12
Classification: B01J,C01B,C01F,C01P,C10G

Abstract:
A process for making an HTL compound having an XRD pattern which has 2 theta peak positions that are nearly identical to those found in ICDD card 35-965, comprising:(a) preparing a reaction mixture comprising an aluminum-containing compound, a magnesium-containing compound, a cerium-containing compound, and a vanadium-containing compound under conditions such that a product obtained from the reaction mixture is an HTL compound whose XRD pattern is not that of ICDD card 35-965; (b) converting said HTL compound whose XRD pattern is not that of ICDD card 35-965 into a microspheroidal form suitable for use as an SOx sorbent; (c) heat treating said HTL compound whose XRD pattern is not that of ICDD card 35-965 at a temperature of from 300Â° C. to 850Â° C. to obtain a collapsed, heat treated HTL compound whose XRD pattern is not that of ICDD card 35-965; and (d) hydrating said collapsed, heat treated, HTL compound whose XRD pattern is not that of ICDD card 35-965 to obtain an HTL compound having an XRD pattern which has 2 theta peak positions that are nearly identical to those found in ICDD card 35-965, and which is suitable for use as an SOx sorbent.