Patent · US Expired

Palladium-containing fixed-bed catalyst for the hydrogenation of butyne-1,4-diol to butene-2-diol-1,2

US5521139A · kind A · utility

4Cited by

6References

11Claims

0Family size

Assignee

BASF SE

Inventors

Franz Josef Brocker · Ludwigshafen, DE
Rainer Becker · Bad Dürkheim, DE
Volkmar Menger · Neustadt, DE
Peter Stops · Altrip, DE

Key dates

Filing date	Sep 30, 1994
Grant date	May 28, 1996
Priority date	—
Expiry date	Sep 30, 2014

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J37/0225
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Catalyst and process for the preparation of butene-2-diol-1,4 by the hydrogenation of butyne-2-diol-1,4 in aqueous solution over a palladium-containing fixed-bed catalyst, which is doped with lead or cadmium, in which a catalyst is used which has been made by applying Pd and Pb or Pd and Cd successively, by vapor deposition or sputtering, to a metal gauze or a metal foil acting as support material followed by forming the catalyst at an elevated temperature in air.

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