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    • 13. 发明授权
    • Hydroformylation process
    • 氢化工艺
    • US4052461A
    • 1977-10-04
    • US565167
    • 1975-04-04
    • Harold Burnham TinkerDonald E. Morris
    • Harold Burnham TinkerDonald E. Morris
    • B01J31/16B01J31/18B01J31/20B01J31/24C07C45/49C07C45/50C07C47/48B01J21/02
    • B01J31/2404B01J31/1895B01J31/20B01J31/24C07C45/49C07C45/50B01J2231/321B01J2531/822
    • The invention relates to a process for the preparation of aldehydes by the hydroformylation of olefinically unsaturated compounds using a rhodium catalyst which catalyst is provided by (1) introducing rhodium into the reaction solution in the form of an ionic rhodium compound, the said ionic compound consisting of (a) a rhodium-containing cation having rhodium complexed with ligands other than halide, and (b) a non-coordinating anion; and (2) furnishing to the reaction solution at least two moles of a modifying ligand per mole of ionic rhodium compound where the modifying ligand is furnished either pre-coordinated in the said ionic rhodium compound or as a free compound, and where the modifying ligand is a tertiary organo phosphorous compound having from 3 to 90 carbon atoms, or a tertiary organo arsenic compound having from 3 to 90 carbon atoms, or a tertiary organo antimony compound having from 3 to 90 carbon atoms.The process is especially useful for the production of aldehydes from olefinically unsaturated compounds having from 2 to 30 carbon atoms, carbon monoxide, and hydrogen at a total pressure of from 4.6 to 142 kg/cm.sup.2 (50 to 2,000 psig), and at a temperature of from about 60.degree. C to about 180.degree. C.A preferred embodiment of the invention utilizes the modifying ligand at a molar concentration in excess of that required stoichiometrically by the ionic rhodium compound. Another preferred embodiment of this invention employs the modifying ligand as the solvent for the reaction system.