A process for the conversion of olefinic hydrocarbons according to the olefin reaction (e.g., the olefin disproportionation reaction) by contacting the olefinic hydrocarbon with a catalyst comprising a coordination compound of molybdenum or tungsten complexed with NO, together with an organoaluminum adjuvant. 15 Claims, No Drawings
This application is a divisional of copending application Ser. No. 717,023, filed Mar. 28, 1968, which is a continuation-in-part of application Ser. No. 694,873, filed Jan. 2, 1968, now abandoned, and application Ser. No. 635,700, filed May 3, 1967, now abandoned.
There is provided an oligomerization process. The process involves the use of a catalyst comprising an acidic solid. The acidic solid may comprise a Group IVB metal oxide, such as zirconia, modified with an oxyanion of a Group VIB metal, such as tungsten. The oligomers produced by this process may be hydrogenated to produce thermally stable lubricants and lubricant additives.
Disproportionation of olefinic hydrocarbons by contact with a catalyst comprising a dicarbonyl(cyclopentadienyl)nitrosyl complex of molybdenum or tungsten and an alkylaluminum halide co-catalyst.
Dinitrosyldihalo complexes of molybdenum or tungsten are produced from (1) an oxytetrahalide of molybdenum or of tungsten, (2) an alkali metal nitrite, (3) a reducing agent which is metallic iron or a borohydride of sodium, potassium, rubidium, or cesium, (4) a ligand-forming compound, (5) in an aprotic diluent.
A process for the conversion of olefinic hydrocarbons according to the olefin reaction (e.g., the olefin disproportionation reaction) by contacting the olefinic hydrocarbon with a catalyst comprising a coordination compound of molybdenum or tungsten complexed with NO, together with an organoaluminum adjuvant.
There is provided a ring opening process using a catalyst comprising a hydrogenation/dehydrogenation component, such as a noble metal, and an acidic solid component comprising a Group IVB metal oxide modified with an oxyanion of a Group VIB metal. An example of this catalyst is zirconia, modified with tungstate and platinum. This catalyst is used to convert cyclic hydrocarbons, such as cyclohexane and benzene, to paraffins, especially branched paraffins.
