摘要:
The present invention is related to a process for telomerizing a conjugated diene which comprises reacting said conjugated diene with a compound containing active hydrogen in the presence of a catalyst system comprising at least one transition metal compound, at least one phosphorus-containing compound, and at least one salt which forms a liquid under the conditions of the telomerization process.
摘要:
A novel non-aqueous catalytic composition comprises at least one quaternary ammonium and/or phosphonium salt in which the anion is selected from the group consisting of tetrafluoroborate, tetrachloroborate, hexafluorophosphate, hexafluoroantimonate, hexafluoroarsenate, trifluorosulphonate, fluorosulphonate, trifluoromethylsulphonate, trifluoroarsenate, dichlorocuprate, trichlorocuprate, tetrachlorocuprate, and trichlorozincate, and at least one complex of a transition metal from groups 8, 9 or 10, i.e., iron, ruthenium, colbalt, rhodium iridium, nickel, palladium and platinum. The catalyst can be used in a process of total or selective hydrogenation of unsaturated compounds such as monoolefins, diolefins, acetylene compounds, aromatic compounds, or polynuclear aromatic compounds. Hydrogenation may be accompanied by isomerisation.
摘要:
A catalytic composition comprises at least one quaternary ammonium and/or phosphonium salt in which the anion is preferably selected from the group formed by tetrafluoroborate, tetrachloroborate, hexafluorophosphate, hexafluoroantimonate, hexafluoroarsenate, trifluorosulphonate, fluorosulphonate, tetrachloroaluminate, dichlorocuprate, and trichlorozincate, and at least one complex of a transition metal from groups 8, 9 and 10, i.e., iron, ruthenium, cobalt, rhodium, iridium, nickel, palladium and platinum, is for the displacement of the double bond in olefins.
摘要:
The invention concerns a catalytic composition resulting from mixing at least one aluminum halide, at least one quaternary ammonium halide and/or at least one amine halohydrate and at least one cuprous compound, preferable a halide. The invention also concerns a process for the alkylation of isoparaffins by olefins with that composition.
摘要:
The invention concerns a catalytic olefin disproportion (also known as metathesis) process wherein the catalyst produced by dissolving a tungsten and/or molybdenum compound, more particularly a tungsten and/or molybdenum halide substituted with one or more phenoxo groups containing at least two hydrocarbon substituents in the ortho, ortho' positions, in a medium produced by mixing at least one quaternary ammonium halide and/or at least one quaternary phosphonium halide, at least one aluminium halide, and an organometallic aluminium compound.
摘要:
The invention concerns a catalytic composition for olefin disproportion (also known as metathesis) produced by dissolving a tungsten and/or molybdenum compound, more particularly a tungsten and/or molybdenum halide substituted with one or more phenoxo groups containing at least two hydrocarbon substituents in the ortho, ortho' positions, in a medium produced by mixing at least one quaternary ammonium halide and/or at least one quaternary phosphonium halide, at least one aluminum halide, and an organometallic aluminum compound.The invention also concerns an olefin disproportion process using this composition.
摘要:
Co dimerization is conducted of at least one monoolefin, for example a monoolefinic hydrocarbon such as ethylene, propylene or 1-butene, a halogenated monoolefin such as vinyl chloride, or an olefinic functional compound such as methyl acrylate, acrylonitrile, allyl acetate or vinyl acetate, with at least one polyolefin containing at least two conjugated or unconjugated ethylene bonds, for example a diene hydrocarbon such as 1,3-butadiene, piperylene, or isoprene or a polyolefin containing a carboxylic function, such as a fatty acid or a fatty acid ester having 14 to 24 carbon atoms in the fatty chain derived, for example, from a natural oil. The reaction is carried out in the presence of a catalytic system having general formula [RhX.sub.4 ][YR.sub.4 ] where X represents a halogen ion or a SO.sub.4.sup.--, SO.sub.3.sup.-, OH.sup.-, OR.sup.- or R.sup.- group, at least one X being a halogen ion, Y represents a nitrogen atom or a phosphorous atom, and R represents an alkyl, cycloalkyl, alkenyl, aryl, alkylaryl, polystyryl, alkyl polystyryl or acyl radical.