Linde Aktiengesellschaft

Saudi Basic Industries Corporation

Müller, Bernd H.

Bernd H Müller

Mohammed Hassan Al-Hazmi

Heinz Bölt

Wolfgang Müller

Uwe Rosenthal

Normen Peulecke

Anina Wöhl

Fuad Mosa

Andreas Meiswinkel

Florian Winkler

Peter M Fritz

Anton Wellenhofer

Vugar O Aliyev

Marko Hapke

Shahid Azam

Marco Harff

Abdullah Al-Qahtani

Stephan Peitz

Helmut Fritz

Richard Schneider

Bhaskar Reddy Aluri

Carsten Taube

Karl-Heinz Hofmann

Sultan Eid Al-Otaibi

Hans-Jörg Zander

Volker Göke

Anina Woehl

Syriac Palackal

Mohammed Zahoor

Ayed Al-Ayed

Mohammed Al-Masned

Khalid Al-Eidan

Abdullah Al-Dugathier

Vugar Aliyev

Wolfgang MÜLLER

Wofgang Müller

Aliyev Vugar

Shahid Majeed Azam

Fuad Mohammed Mosa

Fuad Saudi Basic Industries Corp Mosa

The present invention relates to a method for preparing linear alpha-olefins (LAO) by oligomerization of ethylene in the presence of solvent and homogenous catalyst, comprising the steps of: (i) feeding ethylene, solvent and catalyst into an oligomerization reactor, (ii) oligomerizing the ethylene in the reactor, (iii) removing a reactor outlet stream comprising solvent, linear alpha-olefins, ethylene, and catalyst from the reactor via a reactor outlet piping system, (iv) transferring the reactor outlet stream to a catalyst deactivation and removal step, and (v) deactivating and removing the catalyst from the reactor outlet stream, characterized in that at least one organic amine is added into the oligomerization reactor and/or into the reactor outlet piping system.

Method for preparing linear alpha-olefins

A catalyst composition and a process for di-, tri- and/or tetramerization of ethylene, wherein the catalyst composition comprises a chromium compound, a ligand of the general structure RRP&#x2014;N(R)&#x2014;P(R)&#x2014;N(R)&#x2014;PRR, or any cyclic derivatives thereof, wherein at least one of the P or N atoms of the PNPNP-unit is member of a ring system, the ring system being formed from one or more constituent compounds of the ligand by substitution, and a co-catalyst or activator.

Catalyst composition and process for di-, tri- and/or tetramerization of ethylene

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 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.

The present invention relates to a catalyst composition for oligomerization of ethylene, comprising a chromium compound; a ligand of the general structure RRP&#x2014;N(R)&#x2014;P(R)&#x2014;N(R)&#x2014;H, wherein R, R, R, Rand Rare independently selected from halogen, amino, trimethylsilyl, C-C-alkyl, aryl and substituted aryl; a modifier containing organic or inorganic halide; and an activator or co-catalyst; and a process for oligomerization utilizing that catalyst.

Catalyst composition and process for oligomerization of ethylene

The present invention relates to a method for preparing linear alpha-olefins (LAO) by oligomerization of ethylene in the presence of a solvent and homogeneous catalyst, comprising the steps of:

The present invention relates to a catalyst composition comprising: (a) a binuclear chromium(II) complex; (b) a ligand of the general structure (A) RRP&#x2014;N(R)&#x2014;P(R)&#x2014;N(R)&#x2014;H or (B) RRP&#x2014;N(R)&#x2014;P(R)&#x2014;N(R)&#x2014;PRR, wherein R, R, R, R, R, Rand Rare independently selected from halogen, amino, trimethylsilyl, C-C-alkyl, aryl and substituted aryl, wherein the PNPN- or PNPNP-unit is optionally part of a ring system; and (c) an activator or co-catalyst, as well as to a process for oligomerization of ethylene.

The present invention relates to a catalyst composition and a process for di-, tri- and/or tetramerization of ethylene, wherein the catalyst composition comprises a chromium compound, a ligand of the general structure (A) RRP&#x2014;N(R)&#x2014;P(R)&#x2014;N(R)&#x2014;H or (B) RRP&#x2014;N(R)&#x2014;P(R)&#x2014;N(R)&#x2014;PRR, or any cyclic derivatives of (A) and (B), wherein at least one of the P or N atoms of the PNPN-unit or PNPNP-unit is member of a ring system, the ring system being formed from one or more constituent compounds of structures (A) or (B) by substitution and a co-catalyst or activator.

The present invention relates to a catalyst for oligomerization of ethylene, comprising a functionalized solid support; a ligand immobilized on the solid support by chemical bonding, wherein the immobilized ligand has the structure (R)(R)P&#x2014;N(R)&#x2014;P(R)&#x2014;Y-support or (R)(R)P&#x2014;N(R)&#x2014;P(R)&#x2014;N(R)&#x2014;P(R)&#x2014;Y-support, wherein R, R, R, R, Rand Rare independently selected from aliphatic group, aryl group, amino group and trimethylsilyl group and Y is the functional group of the support or a derivative thereof; and a chromium compound reacted with the ligand; and to a method for its preparation and a process for oligomerization of ethylene utilizing the catalyst.

Catalyst for oligomerization of ethylene, method for its preparation and oligomerization process using the catalyst

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Rostock, Germany

Bernd H Müller