PROCESS FOR SEPARATING HYDROGEN HALIDES FROM GASES CONTAINING SULPHUR DIOXIDE

摘要

PCT No. PCT/EP95/03497 Sec. 371 Date Feb. 25, 1997 Sec. 102(e) Date Feb. 25, 1997 PCT Filed Sep. 6, 1995 PCT Pub. No. WO96/09245 PCT Pub. Date Mar. 28, 1996Disclosed and claimed is a process for selectively separating hydrogen halides from sulfur-dioxide-containing gases by using an adsorbent made from a porous ceramic support material which is impregnated with an alkaline earth metal salt solution and, after evaporation of the solvent, the alkaline earth metal salt is pyrolysed at 200 DEG to 800 DEG C. to give alkaline earth metal oxide .Xh2O, where x is a number from 0 to 1.