Saudi Basic Industries Corporation

Linde Aktiengesellschaft

Sabic Global Technologies B.v.

Linde Gmbh

Marco Harff

Andreas Meiswinkel

Mohammed Hassan Al-Hazmi

Normen Peulecke

Uwe Rosenthal

Heinz Bölt

Wolfgang Müller

Anina Wöhl

Shahid Azam

Abdullah Al-Qahtani

Abdullah Alqahtani

Wolfgang Peter Mueller

Bernd H Müller

Anina Woehl

Bernd Muller

Anton Wellenhofer

Shehzada Khurram

Heinz Boelt

Abduljelil Iliyas

Bernd H Mueller

Andreas Meiswinkle

Wolfgang Mueller

Bernd Mueller

Stephan Peitz

Fuad Mosa

Karl-Heinz Hofmann

Hans-Jörg Zander

Christian Thaller

Ralf Noack

Hans-Jorg Zander

Andreas Metzner

Lars-Erik Gärtner

Wolfgang MÜLLER

Shahid Khurram

Bernd H Muller

Normen N Peulecke

Shahid Majeed Azam

Bernd MÜLLER

Abdullah Mohammed Al-Qahtani

Anina WÖHL

Lars-Erik Gartner

Mohammed H Al-hazmi

The present invention relates to a method for preparing a catalyst composition for the oligomerization of ethylene and a respective catalyst composition pre-formation unit.

Method for preparing a catalyst composition for oligomerization of ethylene and respective catalyst composition pre-formation unit

The present invention relates to a catalyst composition and a process for the oligomerization of ethylene to produce 1-hexene or 1-octene, wherein the catalyst composition comprises a chromium compound; an NPNPN ligand of the formula (R) (R)N&#x2014;P(R)&#x2014;N(R)&#x2014;P(R)&#x2014;N(R)(R), wherein R, R, R, R, R, Rand Rare each independently hydrogen, halogen, amino, trimethylsilyl or C-Chydrocarbyl, preferably straight-chain or branched C-Calkyl, phenyl, C-Caryl or C-Calkyl-substituted phenyl.

Catalyst composition and process for oligomerization of ethylene to produce 1-hexene and/or 1-octene

A process for deactivation of an olefin oligomerization catalyst is described, including contacting a catalyst composition with a catalyst quenching medium to form a deactivated catalyst composition, and recovering excess catalyst quenching medium. The catalyst quenching medium includes an alcohol having at least 6 carbon atoms, an organic amine, an amino alcohol, or a combination comprising at least one of the foregoing. The catalyst quenching medium is present in a molar ratio of catalyst quenching medium to catalyst of at least 3:1. A process for the oligomerization of an olefin is also described, including feeding the olefin, a solvent, and a catalyst composition into a reactor, oligomerizing the olefin in the reactor to form a reaction product stream including linear alpha olefins, solvent, and the catalyst composition, and contacting the reaction product stream with a catalyst quenching medium.

Process for deactivation of an olefin oligomerization catalyst

A catalyst composition including: (a) a chromium compound; (b) a ligand of the general structureRRP&#x2014;N(R)&#x2014;P(R)&#x2014;NRRor&#x2003;&#x2003;(A)RRP&#x2014;N(R)&#x2014;P(XR)Ror RRP&#x2014;N(R)&#x2014;P(XR), with X&#x2550;O or S,&#x2003;&#x2003;(B)wherein R, R, R, R, R, R, Rand Rare independently C-C-alkyl, C-C-aryl, C-C-cycloalkyl, aralkyl, alkylaryl, or trialkylsilyl, or any cyclic derivatives of (A) and (B), wherein at least one of the P or N atoms of the PNPN-unit or PNP-unit is a member of the ring system, the ring system being formed from one or more constituent compounds of structures (A) or (B) by substitution; and (c) an activator or co-catalyst; and a process for tri- and/or tetramerization.

Catalyst composition and process for oligomerization of ethylene

The present invention relates to a process for the oligomerization of ethylene, comprising: a) oligomerization of ethylene in a reactor in the presence of solvent and catalyst; b) transferring reactor overhead effluent to an externally located cooling device and recycling condensed effluent into the reactor; c) transferring the reactor bottom effluent to a series of fractionation columns and, in the following order, i) optionally separating a Cfraction, ii) separating a Cfraction, iii) simultaneously separating Cand Cfractions and recycling thereof into the reactor , and iv) separating residues comprising &#x2265;Cfractions, spent catalyst polymer material and quench media, from the process, wherein the solvent is separated in any of the steps i)-iv)and/or in an additional step.

Process for oligomerization of ethylene

The present invention relates to a method for oligomerization of ethylene, comprising the steps:

Method for oligomerization of ethylene

A catalyst composition including: (a) a chromium compound; (b) a ligand of the general structure

A process for oligomerization of ethylene, comprising subjecting a catalyst composition to a gas phase of ethylene and conducting an oligomerization, wherein the catalyst composition comprises (a) a chromium compound, (b) a metalated ligand, and (c) an activator or cocatalyst; and catalyst composition as well as a metalated ligand.

Metalated ligand, catalyst composition, and use thereof in the oligomerization of ethylene

The present invention relates to a method for purification of a hydrocarbon stream containing linear alpha olefins, isomers thereof and at least one organic amine, the linear alpha olefins, isomers and the amine having boiling points under atmospheric pressure which differ by at most 5&#xb0; C., comprising the step of removing a major amount of the organic amine from the hydrocarbon stream by distillation, wherein the distillation is carried out to that, together with the amine, between 5% and 95 wt % of the isomers, based on the total amount of the isomers in the hydrocarbon stream, are removed from the hydrocarbon stream in an amine/isomer-rich fraction.

Method for purification of a hydrocarbon stream containing olefin and amine

The present invention relates to a method for purifying a crude PNPNH compound by metalation and re-protonation.

Method for purifying a crude PNPNH compound

A method for purifying a crude PNPNH compound of the general structureRRP&#x2014;N(R)&#x2014;P(R)&#x2014;N(R)&#x2014;Hwherein R, R, R, Rand Rare independently halogen, amino, trimethylsilyl, C-C-alkyl, substituted C-C-alkyl, C-C-aryl and substituted C-C-aryl, or any cyclic derivative wherein at least one of the P or N atoms of the PNPN&#x2014;H structure is a member of a ring system, the ring system being formed from one or more constituent compounds of the PNPNH-structure by substitution, the method comprising the steps: A. a) dissolving the crude PNPNH-compound in a C-Calcohol or mixture thereof under heating; b) cooling the solution obtained in step a), c) precipitating the PNPNH compound, separating and optionally drying, or B. (i) washing the crude PNPNH compound with C-Calcohol or a mixture thereof, (ii) separating the PNPNH compound and optionally drying thereof.

Growing community of inventors

Munich, Germany

Marco Harff