Patent · US Expired

Method for the hydroformylation of olefins comprising 2 to 8 carbon atoms

US6969777B2 · kind B2 · utility

5Cited by

2References

9Claims

0Family size

Assignee

BASF SE

Inventors

Helmut Walz · Ludwigshafen, DE
Willi Schönmann · Schifferstadt, DE
Rolf Muller · Karben, DE
Roland Krokoszinski · Bad Dürkheim, DE

Key dates

Filing date	Jun 27, 2001
Grant date	Nov 29, 2005
Priority date	—
Expiry date	Nov 18, 2021

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C45/50
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Olefins having from 2 to 8 carbon atoms are hydroformylated in a process in which (i) an olefin-containing feed in which a proportion of a saturated hydrocarbon having from 2 to 8 carbon atoms is present and also carbon monoxide and hydrogen are fed into a reaction zone and reacted in the presence of a hydroformylation catalyst, (ii) a stream consisting essentially of unreacted olefin and saturated hydrocarbon is separated off from the output from the reaction zone, (iii) the stream is separated into an olefin-enriched fraction and an olefin-depleted fraction by rectification, and (iv) at least part of the olefin-enriched fraction is recirculated to the reaction zone.

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