Resources Contact Us Home
Browse by Category: Main > Chemistry
Class Information
Number: 585/643
Name: Chemistry of hydrocarbon compounds > Unsaturated compound synthesis > By alkyl transfer, e.g., disproportionation, etc.
Description: Subject matter in which an alkyl or alkenyl moiety of a molecule is transferred to another molecule.

Sub-classes under this class:

Class Number Class Name Patents
585/644 Plural stage or averaging 58
585/646 Using catalyst containing mo, re, or w and another transition metal 163
585/645 Using organic extraneous agent 60
585/647 Using re-containing catalyst 83

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8704029 Conversion of butylene to propylene under olefin metathesis conditions Apr. 22, 2014
8704028 Conversion of acyclic symmetrical olefins to higher and lower carbon number olefin products Apr. 22, 2014
8674155 Systems and methods for processing hydrocarbons Mar. 18, 2014
8647999 Method for regenerating a catalyst containing a CHA zeolite Feb. 11, 2014
8569560 Synthesis of terminal alkenes from internal alkenes via olefin metathesis Oct. 29, 2013
8487154 Market driven alkylation or oligomerization process Jul. 16, 2013
8455708 Flexible production of alkylate gasoline and distillate Jun. 4, 2013
8450551 Method for producing propylene May. 28, 2013
8440874 Olefin isomerization and metathesis catalyst May. 14, 2013
8395005 Production of 1-butene and propylene from ethylene Mar. 12, 2013
8389788 Olefin metathesis reactant ratios used with tungsten hydride catalysts Mar. 5, 2013
8389784 Method of producing propylene containing biomass-origin carbon Mar. 5, 2013
8324440 Support properties of silica supported catalysts and their use in olefin metathesis Dec. 4, 2012
8314278 Process and system for the production of isoprene Nov. 20, 2012
8288604 Method of rapid methylation, kit for preparing PET tracer and method of producing PET tracer Oct. 16, 2012
8258358 Integrated propylene production Sep. 4, 2012
8258357 Production of propylene from butane Sep. 4, 2012
8237003 Metathesis catalyst and process for use thereof Aug. 7, 2012
8178736 Process and system for the production of isoprene May. 15, 2012
8178737 Propylene production May. 15, 2012
8168842 Process for the alkylation of a cycloalkene May. 1, 2012
8153810 Alkylidene complexes of ruthenium containing N-heterocyclic carbene ligands; use as highly active, selective catalysts for olefin metathesis Apr. 10, 2012
8153851 Integrated propylene production Apr. 10, 2012
8119852 Process for manufacturing neohexene Feb. 21, 2012
8119849 Propylene production Feb. 21, 2012
8049054 Process for the preparation of C.sub.5 and/or C.sub.6 olefin Nov. 1, 2011
8039566 Olefin metathesis initiators bearing thiazol-2-ylidene ligands Oct. 18, 2011
8026403 System and process for production of liquid product from light gas Sep. 27, 2011
8013200 Process for producing olefins Sep. 6, 2011
7977522 Process of producing olefins Jul. 12, 2011
7964762 Production of propylene and ethylene from butane and ethane Jun. 21, 2011
7923588 Process for preparing a C4-olefin mixture by selective hydrogenation and metathesis process for using this stream Apr. 12, 2011
7902389 Catalyst complex with carbene ligand Mar. 8, 2011
7838711 Process for continuous ruthenium-catalysed metathesis Nov. 23, 2010
7744750 Process for reducing Bromine Index of hydrocarbon feedstocks Jun. 29, 2010
7732650 Oxygenate conversion to olefins with metathesis Jun. 8, 2010
7728185 Integration of olefin cracking with metathesis to increase light olefins production Jun. 1, 2010
7714179 Method for the production of C.sub.5 aldehydes and propene from a C.sub.4 stream containing 1-butene and 2-butene May. 11, 2010
7696398 Stabilization of olefin metathesis product mixtures Apr. 13, 2010
7683180 Group 8 transition metal carbene complexes as enantionselective olefin metathesis catalysts Mar. 23, 2010
7638672 Method for converting ethylene into propylene Dec. 29, 2009
7635794 Method for metathesis of compounds comprising an olefinic double bond, in particular olefins Dec. 22, 2009
7622590 Catalyst complex with carbene ligand Nov. 24, 2009
7608745 Process for production of propylene and ethylbenzene from dilute ethylene streams Oct. 27, 2009
7586018 Oxygenate conversion to olefins with dimerization and metathesis Sep. 8, 2009
7563358 Process for the production of benzene, toluene, and xylenes Jul. 21, 2009
7550638 Integrated cracking and metathesis process Jun. 23, 2009
7459593 Metathesis unit pretreatment process with formation of octene Dec. 2, 2008
7371917 Preparation of olefins by metathesis over a carbide or oxycarbide of a transition metal May. 13, 2008
7220886 Olefin metathesis May. 22, 2007

1 2 3 4

  Recently Added Patents
Inhibitors of the mevalonate pathway of Streptococcus pneumoniae
Probe for ultrasound diagnostic apparatus
Conductor for transmitting electrical power
Methods and kits for predicting the responsiveness of hepatocellular carcinoma patients to 5-fluorouracil-based combination chemotherapy
Method and system for video parameter analysis and transmission
Method and apparatus for focusing electrical stimulation in the brain during electro-convulsive therapy
Portable massage apparatus
  Randomly Featured Patents
Radiolabeled technetium chelates for use in renal function determinations
Fuel nozzle support and cap
Extended blade server
System for providing several data terminals with access to a digital telephone line
Inline power-based common mode communications in a wired data telecommunications network
Mobile device for irradiation and detection of radiation
Method for capturing and mapping fingerprint images and the apparatus for the same
Improved recovery mechanism and ink jet apparatus provided with such mechanism
Method of coating a piezoelectric substrate with a semiconducting material
Signal monitoring circuit for detecting asynchronous clock loss