Ammonoxidation von Paraffinen und dafür geeigneter Katalysator.

摘要

Disclosed in a process for ammoxidation of paraffins containing 2-5 C atoms using a complex metal oxide catalyst having ingredients and 3-5 C atoms using a complex metal oxide catalyst which is essentially free of bismuth, and has the elements and the proportions which are represented by the following empirical formula: VSbmPnAaDbCcOx where A is one or more of W, Sn, B, Mo and As; D is one or more of Fe, Co, Ni, Cr, Cu, Mn, Zn, Se, Te, Pb and As; C is one or more of an alkali metal, Ca, Sr, Ba, Tl and where m is greater than 1 and up to 20; n is 0-10; a is 0.2-10; b is 0.5; c is 0-1; a is equal to or less than m; b is equal to or less than m; wherein x is determined by oxidation state of the other elements present, and wherein the antimony has an average valency higher than +3 and the vanadium has an average valency lower than +5, wherein A includes at least 0.2 atoms of W, crystalling Sb2O4 is present in said catalyst, and wherein the foregoing catalyst is on a specified inorganic oxide support material. Also disclosed is the catalyst and how to make it.