| 摘要 |
1289088 Olefin conversion catalysts GULF RESEARCH & DEVELOPMENT CO 7 April 1970 [5 May 1969] 16303/70 Heading B1E [Also in Division C5] A catalyst for use in olefin conversion reactions comprises (a) alumina, (b) molybdenum or rhenium and (c) silver or copper. The catalyst may contain from 4 to 12, preferably from 7 to 9, weight per cent of molybdenum or rhenium and from 0.1 to 6, preferably from 0.5 to 3, weight per cent of silver or copper; the molybdenum or rhenium and the silver or copper may be in oxide form. The specification gives details relating to the preparation of such catalysts by methods which generally are conventional. Examples relate to catalysts which comprise gamma alumina, 8 weight per cent of molybdenum and varying amounts of silver or copper; comparative catalysts comprise gamma alumina, 8 weight per cent of molybdenum and either 2.8 weight per cent of zinc or 1.4 weight per cent of cobalt or 1.4 weight per cent of nickel or 6.0 weight per cent of gold. The alumina used in the preparation of the catalysts has a surface area of 282 m<SP>2</SP>/g, an average pore volume of 0.515 ml/g and an average pore diameter of 74 Angstroms. |
