Processes for using bastnaesite/metal oxide compounds

摘要

Bastnaesite materials and Mg[A] (and/or Al[B]) materials can be chemically reacted by use of reactions wherein a Al[B] ingredient such as alumina is made into a sol by use of a mono-protonic acid before Mg[A] (and/or Al[B]) materials is (are) reacted with the bastnaesite material. The resulting compounds are then used as SOx catalyst/absorbent materials in fluid catalytic cracking units and/or in fixed bed units.