[DE] VERFAHREN ZUR HERSTELLUNG VON 1-OLEFINEN DURCH KATALYTISCHE SPALTUNG VON 1-ALKOXYALKANEN<br/>[EN] METHOD FOR PRODUCING 1-OLEFINS BY CATALYTICALLY SPLITTING 1-ALKOXYALKANES<br/>[FR] PROCEDE DE PRODUCTION DE 1-OLEFINES PAR SEPARATION CATALYTIQUE DE 1-ALCOXYALCANES
申请人:OXENO OLEFINCHEMIE GMBH
公开号:WO2004052809A1
公开(公告)日:2004-06-24
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von 1-Olefinen aus 1-Alkoxyalkanen, insbesondere die Herstellung von 1-Octen aus 1-Alkoxyoctan, durch basische katalysierte Alkoholabspaltung.
The current invention provides a process in which ethers are converted into α-olefins by passage over a modified alumina catalyst. The alumina catalyst is made by treating gamma-alumina with a rare earth metal oxide such as lanthanum oxide, La
2
O
3
. The modified aluminum catalysts convert 1-methoxyoctane into 1-octene with high selectivity at high conversion rates.
[EN] PROCESS FOR PRODUCING 1-OCTENE FROM BUTADIENE IN THE PRESENCE OF TITANIUM CATALYSTS<br/>[FR] PROCEDE POUR PRODUIRE DU 1-OCTENE A PARTIR DE BUTADIENE EN PRESENCE DE CATALYSEURS AU TITANE
申请人:POLIMERI EUROPA SPA
公开号:WO2005047218A1
公开(公告)日:2005-05-26
A method is described for the preparation of 1-octene starting from butadiene, wherein in a first step (a) the bis-hydrodimerization of butadiene to 1,7-octadiene is effected in the presence of a catalyst based on palladium containing one or more tri-substituted monodentate phosphines, in an aprotic polar solvent, in a second step (b) the partial catalytic hydrogenation of 1,7-octadiene to 1-octene is effected in the presence of a titanium compound activated with one or more metal alkyls of group 13 (selected from boron, aluminum, gallium, indium).
[EN] PROCESS FOR THE PREPARATION OF 1-OCTENE<br/>[FR] PROCEDE POUR PREPARER DU 1-OCTENE
申请人:POLIMERI EUROPA SPA
公开号:WO2005047217A1
公开(公告)日:2005-05-26
Process in two steps for the preparation of 1-octene starting from butadiene which comprises: a first step (a) in which the bis-hydrodimerization of butadiene to 1,7-octadiene is effected in the presence of a catalyst based on a palladium complex containing one or more tri-substituted monodentate phosphines, in an aprotic polar solvent optionally containing an organic base; a second step (b) in which the partial catalytic hydrogenation of 1,7-octadiene to 1-octene is effected, the above process being characterized in that: (i) in the first step the aprotic polar solvent is selected from disubstituted cyclic ureas; (ii) in the second step the catalyst is selected from non supported ruthenium complexes having general formula (I I): RuXmLn (I I).
Phosphonium salts and processes for production of and uses for the same, and phosphines deriving the same and processes for production of the phosphines
申请人:KURARAY CO. LTD,
公开号:US20020183196A1
公开(公告)日:2002-12-05
Phosphonium salts represented by the general formula (I)
1
wherein R
1
and R
2
each represents a phenyl group which may be substituted by a lower alkyl group, R
3
represents a phenylene group which may be substituted by a lower alkyl group, R
7
and R
8
each represents a hydrogen atom or a hydrocarbon group having 1 to 12 carbon atoms which may be substituted and R
9
represents a hydrogen atom or a hydrocarbon group having 1 to 5 carbon atoms which may be substituted; processes for producing the same and uses for the same; phosphines providing the same, and processes for producing said phosphines.