Patent · US Expired

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

US6822122B2 · kind B2 · utility

2Cited by

5References

10Claims

0Family size

Assignee

BASF SE

Inventors

Wolfgang Richter · Haar, DE
Roland Krokoszinski · Bad Dürkheim, DE
Rolf Muller · Karben, DE
Michael McAtee · Chesapeake, US

Key dates

Filing date	Dec 16, 2002
Grant date	Nov 23, 2004
Priority date	—
Expiry date	Dec 16, 2022

Classification

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

Abstract

Disclosed is a method for the hydroformylation of olefins comprising 2 to 8 atoms, whereby a) an inflow containing olefins and a gas mixture containing hydrogen and carbon monoxide are fed into a reaction zone and reacted in the presence of a hydroformylation catalyst, b) the reaction product which is released from the raw hydroformylation product is redirected into the reaction zone during the extraction of a gaseous recovery flow. The inventive method is characterised in that c) the recovery flow is brought into intimate contact with a wash liquid in order to eliminate the unreacted olefins contained therein, the wash liquid being a vented hydroformylation product, and the olefin-charged wash liquid and the raw hydroformylation product are redirected for regeneration. Said inventive method enables unreacted olefins to be reclaimed to a large extent from the recovery flow.

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