Patent · US Expired

Method for producing oligomers

US6852898B2 · kind B2 · utility

8Cited by

0References

20Claims

0Family size

Assignee

BASF SE

Inventors

Ralf Schulz · Speyer, DE
Thomas Heidemann · Viernheim, DE
Peter Schwab · Bad Dürkheim, DE
Peter Zehner · Ludwigshafen, DE

Key dates

Filing date	Mar 22, 2001
Grant date	Feb 8, 2005
Priority date	—
Expiry date	May 25, 2021

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C2/08
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

In a process for preparing essentially unbranched oligomers of alkenes having from 4 to 6 carbon atoms starting from the alkenes or a hydrocarbon stream comprising such alkenes over a nickel-containing heterogeneous catalyst in an adiabatically operated reactor at from 20 to 300° C. and pressures of from 1 to 100 bar, a first substream of the output from the reactor is worked up to isolate the oligomers and the second substream is recirculated together with fresh alkene or a fresh hydrocarbon stream comprising such alkenes to the reactor.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.