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Browse by Category: Main > Chemistry
Class Information
Number: 585/311
Name: Chemistry of hydrocarbon compounds > Plural serial diverse syntheses > One synthesis rehabilitates catalyst for other, e.g., by alkylation with ester, etc.
Description: Subject matter in which a catalyst which has deteriorated in its effectiveness in a synthesis process is treated to restore its effectiveness by using it in another hydrocarbon synthesis.










Patents under this class:

Patent Number Title Of Patent Date Issued
8541638 Process to remove dissolved AlCl.sub.3 from ionic liquid Sep. 24, 2013
7935320 Alkylation process with recontacting in settler May. 3, 2011
7638665 Isomerization of benzene-containing feedstocks Dec. 29, 2009
7476773 Process for preparing a gas oil by oligomerization Jan. 13, 2009
7411108 Process for the removal of conjugated olefins from a monoolefin stream Aug. 12, 2008
6846965 Method for the oligomerization of C2 C8-olefins Jan. 25, 2005
6635778 Catalysts systems for the polymerization and copolymerization of alpha-olefins Oct. 21, 2003
6444868 Process to control conversion of C4+ and heavier stream to lighter products in oxygenate conversion reactions Sep. 3, 2002
6303839 Process for producing polymer grade olefins Oct. 16, 2001
6194626 Process for the purification of a diolefin hydrocarbon stream from a naphtha steam cracker Feb. 27, 2001
5914433 Process for producing polymer grade olefins Jun. 22, 1999
5895831 Solid catalyst alkylation process Apr. 20, 1999
5300126 Process for improving olefin etherification catalyst life Apr. 5, 1994
5284986 Upgrading of normal pentane to cyclopentene Feb. 8, 1994
5283385 Upgrading of normal pentane to cyclopentane Feb. 1, 1994
4774364 Integrated alkylation/alkyl tertiary-alkyl ether synthesis process Sep. 27, 1988
4134907 Process for enhancing the fuel value of low BTU gas Jan. 16, 1979
4125567 Terminal olefin preparation Nov. 14, 1978
4026961 Isoparaffin HF alkylation with low-boiling alkyl fluoride-containing fraction May. 31, 1977
4009221 HF recovery with alkyl fluoride formation and utility in alkylation Feb. 22, 1977
3985823 Isoparaffin-olefin alkylation with HF alkylation and isomerization in a soaking zone Oct. 12, 1976
3972956 Avoiding pollution by HF catalyst residues in alkylation Aug. 3, 1976











 
 
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