| 摘要 |
This invention relates to a process for making 3-hydroxypropanal by intimately contacting (a) ethylene oxide, (b) ditertiary phosphine-modified cobalt carbonyl catalyst, said phosphine being a hydrocarbylene-bis(monophosphabicyclononane) in which each phosphorus atom is joined to hydrocarbylene and is a member of a bridge linkage without being a bridgehead atom and which hydrocarbylene-bis(monophosphabicyclononane) has 18 to 50 carbon atoms, 8 carbon atoms thereof together with a phosphorus atom being members of each of the two bicyclic skeletal structures, (c) a catalyst promoter comprising an acid and a metal salt promoter selected from a salt of a metal of Group IIA, Group IIB, Group IIIB and the Rare Earth Series of the Periodic Table of the Elements (CAS version), (d) carbon monoxide, and (e) hydrogen, the molar ratio of carbon monoxide to hydrogen being from about 4:1 to about 1:6, in liquid-phase solution in an inert reaction solvent, at a temperature of from about 30 degrees C. to about 150 degrees C. and a pressure of from about 50 psi to about 10,000 psi. The use of the acid/metal salt promoter enhances the activity of the catalyst. |
