Linde Aktiengesellschaft

Saudi Basic Industries Corporation

Bernd H Mueller

Wolfgang Mueller

Fuad Mosa

Peter M Fritz

Anton Wellenhofer

Florian Winkler

Stephan Peitz

Mohammed Hassan Al-Hazmi

Vugar O Aliyev

Uwe Rosenthal

Normen Peulecke

Wolfgang Peter Mueller

Marco Harff

Heinz Boelt

Marko Hapke

Anina Woehl

Helmut Fritz

Heinz Bölt

Andreas Meiswinkel

Anina Wöhl

Richard Schneider

Abdullah Al-Qahtani

Abdullah Alqahtani

Volker Goeke

Carsten Taube

Mohammed Al-Masned

Khalid Al-Eidan

Andreas Meiswinkle

Sultan Al-Otaibi

Mohammed Al-Hazmi

Karl-Heinz Hofmann

Syriac Palackal

Aliyev Vugar

Bashkar Reddy Aluri

Fuad Mohammed Mosa

Abdellah Al-Dugathier

Shahid Majeed Azam

Bhaskar Reddy Aluri

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

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

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Munich, Germany

Bernd H Mueller