Patent ID: 6929736
Filing Date: 2005-08-16
Classification: B01J,C01B,C01F,C01P,C10G

Abstract:
1. A solid solution comprising magnesium and aluminum and at least one SO 2 →SO 3 oxidation catalyst comprising a metal selected from the group consisting of cerium, vanadium, platinum, palladium, rhodium, molybdenum, tungsten, copper, chromium, nickel, iridium, manganese, cobalt, iron, ytterbium and uranium prepared by the method comprising: reacting a source of aluminum and a source of magnesium which are free of a hydrotalcite like compound to form a non-hydrotalcite like reaction product having a magnesium to aluminum ratio of 2:1 to 5:1 and thereafter; heat treating said non-hydrotalcite like reaction product at a temperature in the range of from about 300° C. to about 850° C. until such reaction product displays an X-ray diffraction pattern having at least a reflection at a two theta peak position at about 43 degrees and about 62 degrees.