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Class Information
Number: 585/613
Name: Chemistry of hydrocarbon compounds > Unsaturated compound synthesis > Diolefin product > By c content reduction, e.g., cracking, etc.
Description: Subject matter wherein the product diolefin molecule contains fewer carbon atoms than a feedstock hydrocarbon molecule.

Sub-classes under this class:

Class Number Class Name Patents
585/615 Butadiene product per se 17
585/614 Isoprene product per se 6

Patents under this class:

Patent Number Title Of Patent Date Issued
8703064 Hydrocabon cracking furnace with steam addition to lower mono-nitrogen oxide emissions Apr. 22, 2014
8080698 Method for olefin production from butanes and cracking refinery hydrocarbons and alkanes Dec. 20, 2011
7563525 Electric reaction technology for fuels processing Jul. 21, 2009
6841709 Method of cutting polymer chains and method for producing chemical raw materials Jan. 11, 2005
6333443 Process for the production of methylacetylene and propadiene Dec. 25, 2001
6194626 Process for the purification of a diolefin hydrocarbon stream from a naphtha steam cracker Feb. 27, 2001
5856600 Production process of depolymerized natural rubber Jan. 5, 1999
5569801 Polymer conversion process Oct. 29, 1996
5536894 MCM-56 as sorbent and catalyst component Jul. 16, 1996
5446228 Benzyltoluenes/benzylxylenes dielectric compositions Aug. 29, 1995
5324486 Hydrocarbon cracking apparatus Jun. 28, 1994
5288934 Process for the conversion of polymers Feb. 22, 1994
5082985 Process for controlling hydrocarbon steam cracking system using a spectrophotometer Jan. 21, 1992
4777318 Process and furnace for the steam cracking of hydrocarbons for the preparation of olefins and diolefins Oct. 11, 1988
4762958 Process and furnace for the steam cracking of hydrocarbons for the preparation of olefins and diolefins Aug. 9, 1988
4412089 Process for the preparation of dienes and/or trienes Oct. 25, 1983
4172816 Catalytic process for preparing olefins by hydrocarbon pyrolysis Oct. 30, 1979

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