Process for making an ethynylation catalyst

US3954669A · kind A · utility

Assignee

• BASF SE

Inventors

• Franz J. Broecker
• Wolfgang Reiss · Ludwigshafen, DE
• Karl Baer · Weinheim, DE
• Siegfried Winderl
• Wolfgang Schroeder · Aachen, DE
• Herwig Hoffmann · Bischofswerda, DE

Key dates

• Filing date: Nov 19, 1974
• Grant date: May 4, 1976
• Expiry date: Nov 19, 1994

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J23/868
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A new catalyst for the manufacture of butynediol from formaldehyde and acetylene, based on a carbonate which contains copper, has the structure of the natural mineral manasseite, also contains magnesium or aluminum or -- in place of aluminum -- iron or chromium and is converted into the catalyst by reaction of the copper ions with acetylene.