公开(公告)号：DE2514990A1

公开(公告)日：1976-10-14

申请号：DE2514990

申请日：1975-04-05

Applicant: BASF AG

Inventor： REISS WOLFGANG DIPL CHEM DR ,  WINDERL SIEGFRIED DIPL CHEM DR ,  SCHROEDER WOLFGANG DIPL CHEM D ,  HOFFMANN HERWIG DIPL CHEM DR

IPC: C07C29/42 ,  B01J31/00 ,  C07B61/00 ,  C07C27/00 ,  C07C33/046 ,  C07C67/00 ,  C07C33/04

Abstract: In a process for the manufacture of butynediol by the reaction of formaldehyde and acetylene in aqueous solution, in which a catalyst is used which is produced by the action of acetylene and formaldehyde on copper (II) compounds, the catalyst becomes inactive when it is treated for a relatively long period with formaldehyde at elevated temperature in the absence of acetylene so that it must constantly remain in contact with acetylene-containing solution if its temperature is above 70 DEG C.