Patent · US Active

One-stage continuous process for hydroformylating higher olefins or olefin mixtures

US8138379B2 · kind B2 · utility

8Cited by

5References

13Claims

0Family size

Assignee

Evonik Oxeno GmbH · DE

Inventors

Hans-Gerd Lueken · Marl, DE
Stefan Drees · Delmsen, DE
Alfred Kaizik · Marl, DE
Wilfried Bueschken · Haltern, DE

Key dates

Filing date	Oct 28, 2008
Grant date	Mar 20, 2012
Priority date	—
Expiry date	Feb 20, 2029

Classification

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

Abstract

The invention relates to a one-stage continuous process for hydroformylating olefins having at least 5 carbon atoms to the corresponding aldehydes and/or alcohols having at least 6 carbon atoms in the presence of unmodified cobalt catalysts in a process in which, in the presence of an aqueous phase and of an organic phase, catalyst formation, catalyst extraction and hydroformylation proceed in the same reactor, which is characterized in that more aqueous cobalt salt solution is fed into the reactor as an aqueous phase with the liquid reaction mixture and is discharged from the reactor with the gas phase, and in that the level of the aqueous bottom phase is kept constant by continuously conducting a portion of the aqueous bottom phase out of the reactor.

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