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. 25, 2005
Filed:
May. 11, 2000
Ralf Schulz, Speyer, DE;
Marc Walter, Frankenthal, DE;
Hans-peter Neumann, Ludwigshafen, DE;
Wolfgang Brox, Heidelberg, DE;
Ralf Schulz, Speyer, DE;
Marc Walter, Frankenthal, DE;
Hans-Peter Neumann, Ludwigshafen, DE;
Wolfgang Brox, Heidelberg, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
C-C-olefins are oligomerized in a process in which a stream of an olefin-containing hydrocarbon mixture is passed over a heterogeneous, nickel-containing oligomerization catalyst in n successive adiabatically operated reaction zones, where n≧2, and the hydrocarbon mixture experiences a temperature increase 66 Tin each reaction zone and the hydrocarbon mixture enters the first reaction zone at a temperature Tand before entering each further reaction zone is cooled to a temperature which in each case may be up to 20° C. above or below T, and the relative catalyst volumes of the individual reaction zones are such that the difference in ΔTbetween any two reaction zones is not more than 20° C.