The invention relates to a method for oligomerizing olefins according to which an olefin is brought into contact with a catalyst system comprising: a) at least one transition metal complex having a multidentate complex ligand, and; b) an alkylalumoxane in quantities in which the molar ratio of aluminum to transition metal is greater than 10, whereby at least one portion of the quantity of the transition complex is added continuously or in portions over the course of oligomerization. The method enables the production of greater quantities of olefin oligomers with a given quantity of alkylalumoxane.
Method for the oligomerization of olefins using a cycloalkylalkyl-substituted triazacyclohexane
申请人:Mihan Shahram
公开号:US20050256357A1
公开(公告)日:2005-11-17
Disclosed is a method for the oligomerization of olefins, wherein an olefin is brought into contact with a catalyst system that is obtained from a chromium source, a cycloalkylalkyl-substituted triazacyclohexane, especially a 1,3,5-tris-(cycloalkylalkyl)-1,3,5-triazacyclohexane and an activator such as an alkyl aluminum compound or an alkylalumoxane.
VERFAHREN ZUR OLIGOMERISIERUNG VON OLEFINEN UNTER VERWENDUNG EINES CYCLOALKYLALKYL-SUBSTITUIERTEN TRIAZACYCLOHEXANS
申请人:Basell Polyolefine GmbH
公开号:EP1483051A2
公开(公告)日:2004-12-08
Compositions and Methods Including Hexahydrotriazines Useful as Direct Injection Fuel Additives
申请人:Cosimbescu Lelia
公开号:US20100107476A1
公开(公告)日:2010-05-06
A fuel, fuel additive concentrate, and method for removing and/or preventing the occurrence of deposits in a fuel injector of an injection engine are provided. The additive concentrate contains at least one hexahydro triazine.