摘要:
A process for the preparation of alcohol(s) from alkyl ester(s) wherein hydrogen, carbon monoxide and at least one alkyl ester are brought into contact with a hydrogenation catalyst comprising copper and manganese in a reaction zone to produce at least one alcohol, wherein the molar ratio of hydrogen to carbon monoxide in the reaction zone is in the range of from 100: 1 to 1 : 10.
摘要:
The present invention provides a process for the conversion of carbon oxide(s) and hydrogen containing feedstocks into alcohols in the presence of a particulate catalyst.
摘要:
Systems and methods to produce branched aliphatic alcohols are described. Systems include at least an olefin isomerization unit, a hydroformylation unit, a dehydrogenation unit. Methods for producing branched aliphatic alcohols include isomerization of olefins in a process stream. The isomerized olefins are hydroformylated to produce aliphatic alcohols. After hydroformylation of the aliphatic alcohols, unreacted components from the hydroformylation process may be separated from the aliphatic alcohols products. The unreacted components from the hydroformylation process are introduced into a dehydrogenation unit to form an olefinic hydrocarbon stream, which is recycled back into the main process stream. Addition of multiple streams to the units may be performed to control reaction conditions in the units.
摘要:
Production of unsaturated ketones by the aldol condensation of ketones such as acetone or methyl ethyl ketone by contacting the ketone in the vapour phase with a particulate catalyst comprising at least one basic alkali metal compound supported on an inert substrate at a temperature above 175 DEG C. The product ketones may be hydrogenated to form saturated ketones or alcohols.
摘要:
PCT No. PCT/EP95/04506 Sec. 371 Date Apr. 18, 1997 Sec. 102(e) Date Apr. 18, 1997 PCT Filed Nov. 16, 1995 PCT Pub. No. WO96/16012 PCT Pub. Date May 30, 1996Aldehydes and/or alcohols are prepared by the hydroformylation of olefins of more than 3 carbon atoms by means of a bare rhodium catalyst dissolved homogeneously in the reaction medium, at superatmospheric pressure and at elevated temperatures, and separation of the rhodium catalyst from the liquid reaction mixture, by a process in which a magnetizable, inorganic pigment coated with a polymeric binder is used for separating the homogeneously dissolved, bare rhodium catalyst from the hydroformylation medium, and this pigment, after it has been laden with the rhodium contained in the hydroformylation medium, is separated from the liquid hydroformylation medium by applying an external magnetic field.
摘要:
In the dehydrochlorination of 3,4-dichlorobutene-1 to give chloroprene in a two-phase mixture of water and an alcohol, a bleed stream may be taken from the organic phase to prevent high boiling impurities accumulating. Problems in recovering the alcohol from the bleed are overcome by extracting the bleed with water at a volume ratio of water and organic phase brought into contact at the first extraction step of not less than 15:1, or if the organic phase is substantially free of chloroprene, not less than 6:1.
摘要:
The invention relates to a process for producing functionalized organic molecules having 1 to 3 carbon atoms comprising the step of - contacting carbon dioxide as the only gas or a gas mixture comprising or consisting of carbon dioxide and methane in presence of water with a catalyst comprising or consisting of permanently polarized hydroxyapatite. Further, the invention relates to uses of the process.