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Chemistry Of Hydrocarbon Compounds > Unsaturated Compound Synthesis > By Alkyl Transfer, E.g., Disproportionation, Etc. By Alkyl Transfer, E.g., Disproportionation, Etc.By Alkyl Transfer, E.g., Disproportionation, Etc. patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.12/28/06 - 20060293548 - Metathesis catalyst and process The invention provides a method of preparing a metathesis catalyst, the method including the steps of mixing a transition metal oxide containing aqueous solution having a pH of 9 or higher with a carrier. The water is then removed from the mixture by means of evaporation to provide a metathesis ... 06/01/06 - 20060116542 - Metathesis catalyst and process An olefin metathesis process and a catalyst composition suitable for such process comprising (a) rhenium, (b) one or more metal(s) from Columns 5 and 6 of the Periodic Table, and (c) a support made from an alumina; wherein surface area of the catalyst is at least 200 m2/g as determined ... 04/27/06 - 20060089517 - Olefin metathesis A process for the production of propylene from the metathesis of ethylene and 2-butene is disclosed wherein a mixed C4 stream is first treated to enrich and separate the 2-butene from 1-butene and isobutene by isomerization of 1-butene and concurrent fractional distillation of the 2-butene and isobutene to provide the ... 03/02/06 - 20060047176 - Butane removal in c4 upgrading processes Disclosed herein is a process for producing a selected butene, comprising obtaining a C4 feed stream comprising C4 paraffins and C4 olefins, splitting the C4 feed stream to form a first stream comprising a first butene and a second stream comprising a second butene, isomerizing at least a part of ... 06/09/05 - 20050124839 - Catalyst and process for the metathesis of ethylene and butene to produce propylene A process for producing propylene from a C4 feed containing 2-butene includes contacting said feed with ethylene in a metathesis reaction zone containing a metathesis catalyst under metathesis reaction conditions to provide an effluent including propylene, said metathesis catalyst consisting essentially of a transition metal or oxide thereof supported on ... ### FreshPatents.com Support |