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Class Information
Number: 585/901
Name: Chemistry of hydrocarbon compounds > Catalyst and recycle considerations > With recycle, rehabilitation, or preservation of solvent, diluent, or mass action agent
Description: Collection of documents (under unnumbered subclass CATALYST AND RECYCLE CONSIDERATIONS) (a) to prevent loss of, (b) to restore effectiveness, or (c) to return to a stage of a process, either directly to indirectly, from which it has been withdrawn from use in that stage, a material which is a solvent or diluent or an agent, usually a normally undesired by-product of the process, which regulates the equilibrium of the process to favor production of desired product.

Sub-classes under this class:

Class Number Class Name Patents
585/902 Recycle of solvent and catalyst 6

Patents under this class:

Patent Number Title Of Patent Date Issued
8663461 Extraction process with novel solvent regeneration methods Mar. 4, 2014
7875754 Method of improving alkylate yield in an alkylation reaction Jan. 25, 2011
7723557 Method for the preparation of linear alpha-olefins and reactor system therefore with improved disposal of high molecular weight oligomers May. 25, 2010
7652181 Alkylation reactor design with effluent recycle and impure benzene regeneration Jan. 26, 2010
7556717 Method and device for extractive distillation Jul. 7, 2009
7541505 Process for the production of phenyl alkanes operating in a moving bed Jun. 2, 2009
7291685 Process for producing low polymer of .alpha.-olefin Nov. 6, 2007
7169961 Process for producing low polymer of .alpha.-olefin Jan. 30, 2007
6849769 Method for the continuous hydroformylation of polyakenes having 30 to 700 carbon atoms Feb. 1, 2005
5237122 Alkylation catalyst regeneration Aug. 17, 1993
4769504 Process for converting light alkanes to higher hydrocarbons Sep. 6, 1988
4754095 Chemical conversion process Jun. 28, 1988
4166025 Process for purifying aromatic hydrocarbons Aug. 28, 1979
4139571 C.sub.8 Alkyl aromatic hydrocarbon isomerization by recycling benzene and toluene Feb. 13, 1979
4123471 Olefin production process Oct. 31, 1978
4079093 Aromatic hydrocarbon alkylation process Mar. 14, 1978
4079095 Manufacture of light olefins Mar. 14, 1978
4048242 Process for the production of cyclopentene from dicyclopentadiene Sep. 13, 1977
4009217 Process for production and dehydrogenation of ethylbenzene Feb. 22, 1977
3969091 Process for desiccant drier regeneration Jul. 13, 1976
3957896 Process for preparing 2,6-dimethylnaphthalenes May. 18, 1976

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