| 摘要 |
1342876 Surface modified inorganic substances BRITISH PETROLEUM CO Ltd 9 Dec 1970 [19 Dec 1969] 61920/69 Heading C1A [Also in Divisions C2 C3 and C5] A catalyst support comprises an inorganic solid particulate material containing surface hydroxyl groups modified by reaction to provide units of formula where the free valency is attached to Z where Z is a residue obtained by removing an OH from the solid inorganic material containing OH groups and where R 1 and R 2 are aryl, alkyl, alkoxy and aryloxy groups containing up to 10 carbon atoms or halogen or where one R 1 or R 2 is a monovalent phosphorus-containing group containing up to 10 carbon atoms of formula where n is an integer, R<SP>1</SP> is a divalent organic radical containing up to 20 carbon atoms, R 3 and R 4 are aryl (which may be substituted) or alkyl groups containing up to 10 carbon atoms, or where one of R 3 or R 4 is a monovalent siliconcontaining group of formula -(CH 2 ) 2 Si(CH 3 ) 2 Cl or where one of R 3 or R 4 is hydrogen. Suitable inorganic materials are zeolitic molecular sieves, alumina, titania, silica-alumina, active carbon and silica. The catalyst supports are produced by refluxing the inorganic solid material with a compound containing phosphorus and silicon of formula where R 5 is an alkoxy or aryloxy group containing up to 10 carbon atoms or halogen, dissolved in an inert solvent. Transition metalcontaining catalysts may be produced by reacting the catalyst support with compound of a transition metal selected from rhodium, cobalt, iridium, palladium, nickel and rhenium at -80 to 200‹ C. In an alternative method the transition metal compound may be reacted with a compound containing silicon and phosphorus of formula at -80‹ C. to 250‹ C., preferably in solution, and then reacting the resulting complex dissolved in a solvent at 10-250‹ C. with the solid inorganic particulate material. The catalysts may be used for the isomerization of olefines, for the polymerization of conjugated dienes, and for the polymerizaion of acetylenically unsaturated monomers. In a typical Example (1) triethoxy vinyl silane was reacted with diphenyl phosphene and silica was treated with the resulting reacgion product, ethanol being azeotroped from the reaction mixture. The resulting catalyst support was treated in Example 9 with Rh 2 (CO) 4 Cl 2 and the resulting catalyst used in Example 11 for the hydroformylation of hexene-1. In Example (15) silica was reacted with a toluene solution of the complex prepared by reacting rhodium dicarbonyl chloride with 2-diphenyl phosphino ethyl triethoxyl silane. In Example 31 alumina was reacted with a complex prepared from [(C 2 H 5 O) 3 SiCH 2 CH 2 - P(C 6 H 5 ) 2 ] and [RhCl(C 8 H 12 )] in benzene. |
