公开(公告)号：CA1172235A

公开(公告)日：1984-08-07

申请号：CA388839

申请日：1981-10-27

Applicant: STANDARD OIL CO OHIO

Inventor： MILBERGER ERNEST C ,  LEMANSKI MICHAEL F ,  SPITNALE GREGORY G

IPC: C07D307/60 ,  B01J27/18 ,  B01J27/198 ,  C01B25/37 ,  C01B25/45 ,  C07B61/00 ,  C07C51/215 ,  B01J23/22

Abstract: (5246) A process is provided for the preparation of fluid bed oxidation catalysts containing the mixed oxides of vanadium and phosphorus, comprising the steps of preparing the catalyst precursor, comminuting the precursor, introducing the precursor into water to form an aqueous slurry and spray drying the slurry. The resulting microspheroidal particles are excellent fluid, bed catalysts for the preparation of maleic anhydride from 4-carbon atom hydrocarbons. 23.