Patent · US Expired

Method for reducing the content of acetals or ketals in alcohol-containing reaction mixtures

US6232512A · kind A · utility

16Cited by

4References

8Claims

0Family size

Assignee

Degussa-Huels AG · DE

Inventors

Thomas Haas · Munster, DE
Bernd Jäger · Fritzlar, DE
Jorg Sauer · Rodenbach, DE
Rudolf Vanheertum · Alzenau, DE

Key dates

Filing date	Aug 31, 1999
Grant date	May 15, 2001
Priority date	—
Expiry date	Aug 31, 2019

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C29/132
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Reduction in the content of acetals or ketone acetals in a reaction mixture containing at least 10 moles alcohol per mole acetal or ketone acetal can be achieved hydrogenolytically when the reaction mixture is hydrogenated at 80.degree. to 250.degree. C. at a hydrogen partial pressure of 0.5 to 30 MPa in the presence of activated carbon charged with noble metal as catalyst.

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