Patent · US Active

Continuous method for the production of neopentyl glycol

US9133083B2 · kind B2 · utility

0Cited by

9References

20Claims

0Family size

Assignee

OXEA GMBH · DE

Inventors

Matthias Eisenacher · Wesel, DE
Kurt Schalapski · Oberhausen, DE
Peter Heymanns · Essen, DE
Rainer Lukas · Essen, DE
Heinz Strutz · Usingen, DE

Key dates

Filing date	Sep 30, 2013
Grant date	Sep 15, 2015
Priority date	—
Expiry date	Sep 30, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C45/75
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A continuous method for preparing neopentyl glycol by addition of isobutyraldehyde and formaldehyde in the presence of a tertiary alkylamine as catalyst to give hydroxypivaldehyde with subsequent hydrogenation in the gas phase at a temperature of 125 to 180° C., is characterized in that the hydrogenation is carried out in the presence of a copper chromite catalyst comprising the activators barium and manganese and at a superatmospheric pressure of 30 to 120 kPa.

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