Patent · US Expired

Process for the preparation of aldehydes

US4577043A · kind A · utility

12Cited by

3References

9Claims

0Family size

Assignee

Ruhrchemie Aktiengesellschaft · DE

Inventors

Heinz Kalbfell · Schermbeck, DE
Bernhard Lieder · Bottrop, DE
Herbert Mercamp · Dinslaken, DE

Key dates

Filing date	Nov 9, 1984
Grant date	Mar 18, 1986
Priority date	—
Expiry date	Nov 9, 2004

Classification

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

Abstract

The preparation of aldehydes by the reaction of olefins with carbon monoxide and hydrogen in the presence of water and water-soluble rhodium/phosphine complex compounds as catalysts. The method comprises first cooling the organic part of the liquid phase to 70.degree. to 90.degree. C. in a stripping column by treatment with the carbon monoxide/hydrogen mixture fed into the reactor, further cooling the organic part to 20.degree. to 40.degree. C. by heat exchange with the feed olefin, subsequently relieving the pressure with the consequent formation of waste gas and aqueous and organic phases, and finally separating the phases so as to recover substantially all of the catalyst and the heat of reaction.

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