| 摘要 |
1408800 Oxidation/ammoxidation catalyst SNAMPROGETTI SpA 27 Feb 1973 [1 March 1972] 9643/73 Heading B1E [Also in Division C2 and C5] An oxidation or ammoxidation catalyst composition comprises a mixture of the oxides of tellurium and titainium, wherein the atomic ratio Ee/Ti is from 10:1 to 1:5 and wherein the composition is free from molybdenum and vanadium. The composition may also contain an element of Gp V, e.g. phosphorus. The composition may be formed by reacting tellurium, telluric acid or tellerium oxide with titanium dioxide or titanium chloride and, optionally, phosphoric acid. |
