公开(公告)号：GB907067A

公开(公告)日：1962-10-03

申请号：GB820561

申请日：1961-03-07

Applicant: BASF AG

Inventor： FRIEDRICHSEN WILHELM ,  WERNER HEINZ

Abstract: Aliphatic nitriles are prepared by leading an N-alkyl substituted formamide over a dehydration catalyst in the presence of water vapour and at a temperature of between 450 and 700 DEG C. Specified catalysts are silicic acid, aluminium phosphate, acid phosphates and tungstic acid activated with zinc oxide. The catalysts may be supported on suitable carriers and used in fixed or fluidised beds. Examples describe the preparation of acetonitrile and propionitrile.

公开(公告)号：FR1288283A

公开(公告)日：1962-03-24

申请号：FR854667

申请日：1961-03-06

Applicant: BASF AG

Inventor： FRIEDRICHSEN WILHELM ,  WERNER HEINZ