Catalytic tri-and tetramerization of ethylene: A mechanistic overview

G Tembe - Catalysis Reviews, 2023 - Taylor & Francis
On purpose, selective oligomerization of ethylene to its linear trimer and tetramer such as 1-
hexene and 1-octene has assumed significant commercial interest. Catalytic systems based …

α-Olefin Trimerization for Lubricant Base Oils with Modified Chevron–Phillips Ethylene Trimerization Catalysts

JW Baek, JH Ko, JH Park, JY Park, HJ Lee… - …, 2022 - ACS Publications
α-Olefin trimers are used at a bulk scale as top-tier lubricant base oils, with putative future
applications as diesel fuels obtainable from renewable ethylene. α-Olefin trimers are …

Methods for oligomerizing olefins

DH Mcconville, L Ackerman, RT Li, X Bei… - US Patent …, 2008 - Google Patents
The present invention provides a method of producing oligo mers of olefins, comprising
reacting olefins with a catalyst under oligomerization conditions. The catalyst can be the …

Trimerization

X Gao, CAG Carter, LD Henderson - US Patent 8,252,955, 2012 - Google Patents
(57) ABSTRACT A new PNP ligand is useful in ethylene oligomeriza tions. In combination
withi) a Source of chromium and ii) an activator Such as methylalumoxane; the ligand of this …

Tetramerization

X Gao, CAG Carter, LD Henderson - US Patent 7,829,749, 2010 - Google Patents
In one embodiment, the present invention provides a new family of PNP ligands defined by
the formula: wherein each of Ph, Ph., Phi and Pha is a phenyl group bonded to a …

Process for generating alpha olefin comonomers

JR Lattner, JF Walzer Jr, K Sankaranarayanan… - US Patent …, 2011 - Google Patents
Related US Application Data (63) Continuation-in-part of application No. 1 1/518,456, filed
on Sep. 8, 2006, and a continuation-in-part of application No. 11/517,871, filed on Sep. 8 …

Oligomerisation in the presence of both a tetramerisation catalyst and a further oligomerisation catalyst

A Bollmann, H Maumela, K Blann - US Patent 8,076,523, 2011 - Google Patents
This invention relates to a process for the oligomerization of at least one olefinic compound
in the form of an olefin or a compound including art olefinic moiety by contacting the at least …

Olefin compositions

BE Kreischer, RD Knudsen - US Patent 10,435,336, 2019 - Google Patents
A composition comprising: a) at least 76 mol% C 10 monoolefins, the C 10 monoolefins
comprising i) at least 3 mol% 2-butyl-1-hexene, ii) at least 8 mol% 3-propyl-1-heptene, iii) at …

Process for generating linear apha olefin comonomers

JS Buchanan, K Sankaranarayanan… - US Patent …, 2011 - Google Patents
The present invention relates to an in-line method for gener ating comonomer, from
monomer, Such as ethylene. The comonomer generated is stored prior to transporting to a …

Continuous ethylene tetramerization process

P Zoricak, SJ Brown, PS Chisholm - US Patent 9,688,588, 2017 - Google Patents
A continuous flow process for the oligomerization of ethylene using a chromium catalyst
having a phosphorus-nitrogen-phosphorus (“P—N—P”) ligand provides high selectivity to …