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Class Information
Number: 585/519
Name: Chemistry of hydrocarbon compounds > Unsaturated compound synthesis > By addition of entire unsaturated molecules, e.g., polymerization, etc. > With preliminary treatment of feed > Removal of hydrocarbon fraction
Description: Subject matter wherein the preliminary treatment is such as to remove from the feedstock a type of hydrocarbon undesired in the polymerization reaction, e.g., a hydrocarbon of too low or too high molecular weight, of undesired molecular structure, etc.










Patents under this class:

Patent Number Title Of Patent Date Issued
8536398 Method for purifying supply flows containing aromates by means of zeolites Sep. 17, 2013
8440872 Process for preparing poly alpha olefins and lubricant basestocks from Fischer-Tropsch liquids May. 14, 2013
8188327 Isooctene/isooctane process May. 29, 2012
8128879 Apparatus for increasing weight of olefins Mar. 6, 2012
7989668 Lowering nitrogen-containing Lewis bases in molecular sieve oligomerisation Aug. 2, 2011
7956227 Oligomerization of hydrocarbons Jun. 7, 2011
7632976 Low cost selective octene process: RHT-octene Dec. 15, 2009
7326332 Multi component catalyst and its use in catalytic cracking Feb. 5, 2008
7273542 Process and apparatus for recovering olefins Sep. 25, 2007
7238844 Olefin oligomerization Jul. 3, 2007
7183450 Olefin oligomerization Feb. 27, 2007
6963018 Integrated processes for olefin and polyolefin production Nov. 8, 2005
6884914 Olefin oligomerization Apr. 26, 2005
6841711 Process for making a lube base stock from a lower molecular weight feedstock in a catalytic distillation unit Jan. 11, 2005
6706936 Process for making a lube base stock from a lower molecular weight feedstock Mar. 16, 2004
6686511 Process for making a lube base stock from a lower molecular weight feedstock using at least two oligomerization zones Feb. 3, 2004
5994601 Process for preparing butene oligomers from Fischer-Tropsch olefins Nov. 30, 1999
5981818 Integrated cracking and olefins derivative process utilizing dilute olefins Nov. 9, 1999
5414179 Method for controlling the feed composition to a process for polymerizing isobutylene May. 9, 1995
5336827 Process for producing an oligomer Aug. 9, 1994
5177282 Oligomerization of olefins Jan. 5, 1993
5034565 Production of gasoline from light olefins in a fluidized catalyst reactor system Jul. 23, 1991
4898716 Olefin fractionation and catalytic conversion system Feb. 6, 1990
4831203 Integrated production of gasoline from light olefins in a fluid cracking process plant May. 16, 1989
4831205 Catalytic conversion of light olefinic feedstocks in a FCC plant May. 16, 1989
4831204 Production of gasoline from light olefins with FCC gas plant improvement by olefin upgrading May. 16, 1989
4673768 Separation of polymer from hydrocarbon solvent in the manufacture of polymers of ethylene Jun. 16, 1987
4556749 Catalytic conversion of olefins to higher hydrocarbons Dec. 3, 1985
4520225 Process for the pretreatment of light olefin fractions May. 28, 1985
4504691 Olefin fractionation and catalytic conversion system Mar. 12, 1985
4471147 Olefin fractionation and catalytic conversion system Sep. 11, 1984
4469912 Process for converting .alpha.-olefin dimers to higher more useful oligomers Sep. 4, 1984
4218569 Method for processing etherified light hydrocarbon mixtures to remove methanol Aug. 19, 1980
4072730 Process for alkylating aromatic hydrocarbons Feb. 7, 1978











 
 
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