The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 17, 2017
Filed:
May. 06, 2014
Applicant:
Sasol Technology (Proprietary) Limited, Rosebank, ZA;
Inventors:
Molise Stephen Mokhadinyana, Sasolburg, ZA;
Munaka Christopher Maumela, Sasolburg, ZA;
Moses Mokgolela Mogorosi, Sasolburg, ZA;
Matthew James Overett, Johannesburg, ZA;
Jan-Albert Van Den Berg, Vanderbijlpark, ZA;
Werner Janse Van Rensburg, Gardens, ZA;
Kevin Blann, Johannesburg, ZA;
Assignee:
Sasol Technology (Proprietary) Limited, Rosebank, ZA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 2/36 (2006.01);
U.S. Cl.
CPC ...
C07C 2/36 (2013.01); C07C 2531/14 (2013.01); C07C 2531/24 (2013.01); C07C 2531/34 (2013.01);
Abstract
A process for the tetramerization of ethylene includes contacting ethylene with a catalyst under ethylene oligomerization conditions. The catalyst comprises a source of chromium, a ligating compound, and an activator. The ligating compound includes a phosphine that forms part of a cyclic structure.