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Class Information
Number: 585/644
Name: Chemistry of hydrocarbon compounds > Unsaturated compound synthesis > By alkyl transfer, e.g., disproportionation, etc. > Plural stage or averaging
Description: Subject matter in which the effluent from an alkyl transfer reaction or stage is sent to another alkyl transfer reaction or stage or in which olefins of at least two different carbon contents are reacted to produce olefin material having a carbon content numbering between the carbon content numbers of the starting olefins.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8647999 Method for regenerating a catalyst containing a CHA zeolite Feb. 11, 2014
8389784 Method of producing propylene containing biomass-origin carbon Mar. 5, 2013
7973209 Fractionation recovery processing of light olefins free of carbon dioxide Jul. 5, 2011
7947860 Dividing wall separation in light olefin hydrocarbon processing May. 24, 2011
7816572 Propylene and isoprene production Oct. 19, 2010
7737317 Fractionation recovery processing of FCC-produced light olefins Jun. 15, 2010
7364650 Fischer tropsch composition and process Apr. 29, 2008
7220886 Olefin metathesis May. 22, 2007
7214841 Processing C4 olefin streams for the maximum production of propylene May. 8, 2007
7074976 Propylene production Jul. 11, 2006
6727396 Process for the production of linear alpha olefins and ethylene Apr. 27, 2004
6686510 Production of high-purity isobutene and propylene from hydrocarbon fractions with four carbon atoms Feb. 3, 2004
6646172 Preparation of propene Nov. 11, 2003
6639116 Simplified methods of making 1,3-cyclohexadiene Oct. 28, 2003
6583329 Olefin metathesis in a distillation column reactor Jun. 24, 2003
6566568 Molecular averaging of light and heavy hydrocarbons May. 20, 2003
6562230 Synthesis of narrow lube cuts from Fischer-Tropsch products May. 13, 2003
6538169 FCC process with improved yield of light olefins Mar. 25, 2003
6518469 Process for improved yields of higher molecular weight olefins from lower molecular weight olefins Feb. 11, 2003
6515193 Process for production of higher linear internal olefins from butene Feb. 4, 2003
6433240 Preparation of propene and, if desired, 1-butene Aug. 13, 2002
6429348 Method for selectively producing propylene by catalytically cracking an olefinic hydrocarbon feedstock Aug. 6, 2002
6369286 Conversion of syngas from Fischer-Tropsch products via olefin metathesis Apr. 9, 2002
6313365 Ruthenium metathesis catalyst and method for producing olefin reaction product by metathesis reaction using the same Nov. 6, 2001
6281402 Alternated process for olefin metathesis Aug. 28, 2001
6271430 Preparation of propene Aug. 7, 2001
6235958 Process for converting C5 olefinic cuts by metathesis using a catalyst based on rhenium and cesium May. 22, 2001
6175047 Ruthenium metathesis catalyst and method for producing olefin reaction product by metathesis reaction using the same Jan. 16, 2001
6166279 Preparation of olefins Dec. 26, 2000
6075173 Process for production of isobutene and propylene from hydrocarbon cuts containing four carbon atoms Jun. 13, 2000
5990369 Process for producing light olefins Nov. 23, 1999
5877365 Process and plant for the conversion of olefinic C.sub.4 cuts to polyisobutene and to propylene Mar. 2, 1999
5698760 Olefin metathesis Dec. 16, 1997
5672802 Process for the preparation of alpha olefins Sep. 30, 1997
5620935 Method for the regeneration of a catalyst Apr. 15, 1997
5177291 Metathesis process for olefines and a catalyst to be applied therein Jan. 5, 1993
5146033 Homogeneous rhenium catalysts for metathesis of olefins Sep. 8, 1992
5059733 Process for making 1-hexene and high octane blending components Oct. 22, 1991
5059734 Process for selectively producing C5 to C18 straight chain .alpha. olefins Oct. 22, 1991
5057638 Process for making 1-hexene from 1-butene Oct. 15, 1991
5057637 Process for producing C.sub.5 to C.sub.18 straight chain .alpha.-olefins from the corresponding internal olefins Oct. 15, 1991
5057636 Process for recovering N-hexenes from a mixture of C.sub.6 olefin isomers by oligomerizing the branched-chain C.sub.6 olefin isomers in the mixture using a moderate strength acid catlyst Oct. 15, 1991
5026935 Enhanced production of ethylene from higher hydrocarbons Jun. 25, 1991
5026936 Enhanced production of propylene from higher hydrocarbons Jun. 25, 1991
4568788 Olefin disproportionation and catalyst therefor Feb. 4, 1986
4499328 Olefin metathesis and catalyst Feb. 12, 1985
4436949 Olefin conversion process Mar. 13, 1984
4291187 Olefin disproportionation process Sep. 22, 1981
4255605 Diisopropyl from butenes Mar. 10, 1981
4211885 High octane gasoline components from catalytic cracking gasoline, propylene, and isobutane by disproportionation, cleavage and alkylation Jul. 8, 1980

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