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:
Mar. 12, 2013
Filed:
Apr. 03, 2009
Jan Van DE Loosdrecht, Sasolburg, ZA;
Michael Steven Datt, Johannesburg, ZA;
Jan Mattheus Botha, Sasolburg, ZA;
Jan Van De Loosdrecht, Sasolburg, ZA;
Michael Steven Datt, Johannesburg, ZA;
Jan Mattheus Botha, Sasolburg, ZA;
Abstract
A process for preparing a cobalt based Fischer-Tropsch synthesis catalyst precursor includes introducing a multi-functional carboxylic acid having the general formula (1) HOOC—C*RC*R—COOH (1) or a precursor thereof, where C* in each of C*Ri and C*R2 is a spcarbon, and Rand Rare the same or different, and are each selected from the group consisting of hydrogen and an organic group, into and/or onto a particulate catalyst support. The ratio of the quantity of multifunctional carboxylic acid used relative to the support surface area is at least 0.3 μmol carboxylic acid/mof support surface area. Simultaneously with the introduction of the carboxylic acid into and/or onto the catalyst support, or subsequent thereto, a cobalt compound is introduced into and/or onto the catalyst support. The impregnated support is calcined to obtain the cobalt based Fischer-Tropsch synthesis catalyst precursor.