公开(公告)号：ES2058974T3

公开(公告)日：1994-11-01

申请号：ES91106180

申请日：1991-04-18

Applicant: BASF AG

Inventor： AICHINGER HEINRICH DR ,  RUPPEL WILHELM DR ,  SEUBERT ROLF DR ,  BOEHNING KARL-HEINZ DR ,  SCHEIDMEIR WALTER DR ,  SCHMIDT JOHANNES DR ,  SCHWARZMANN MATTHIAS DR

IPC: B01J23/18 ,  B01J8/02 ,  B01J23/22 ,  B01J27/198 ,  C07B61/00 ,  C07C51/265 ,  C07D307/89

Abstract: Preparation of phthalic anhydride in a tubular reactor equipped with separate salt baths, in which the first catalyst bed relative to the direction of flow is operated at a salt bath temperature which is higher by 2 to 20 DEG C than the following bed or the following beds.

公开(公告)号：DE59102994D1

公开(公告)日：1994-10-27

申请号：DE59102994

申请日：1991-04-18

Applicant: BASF AG

Inventor： AICHINGER HEINRICH DR ,  RUPPEL WILHELM DR ,  SEUBERT ROLF DR ,  BOEHNING KARL-HEINZ DR ,  SCHEIDMEIR WALTER DR ,  SCHMIDT JOHANNES DR ,  SCHWARZMANN MATTHIAS DR

IPC: B01J23/18 ,  B01J8/02 ,  B01J23/22 ,  B01J27/198 ,  C07B61/00 ,  C07C51/265 ,  C07D307/89

Abstract: Preparation of phthalic anhydride in a tubular reactor equipped with separate salt baths, in which the first catalyst bed relative to the direction of flow is operated at a salt bath temperature which is higher by 2 to 20 DEG C than the following bed or the following beds.

公开(公告)号：AT111906T

公开(公告)日：1994-10-15

申请号：AT91106180

申请日：1991-04-18

Applicant: BASF AG

Inventor： AICHINGER HEINRICH DR ,  RUPPEL WILHELM DR ,  SEUBERT ROLF DR ,  BOEHNING KARL-HEINZ DR ,  SCHEIDMEIR WALTER DR ,  SCHMIDT JOHANNES DR ,  SCHWARZMANN MATTHIAS DR

IPC: B01J23/18 ,  B01J8/02 ,  B01J23/22 ,  B01J27/198 ,  C07B61/00 ,  C07C51/265 ,  C07D307/89

Abstract: Preparation of phthalic anhydride in a tubular reactor equipped with separate salt baths, in which the first catalyst bed relative to the direction of flow is operated at a salt bath temperature which is higher by 2 to 20 DEG C than the following bed or the following beds.

公开(公告)号：DE4013051A1

公开(公告)日：1991-11-07

申请号：DE4013051

申请日：1990-04-24

Applicant: BASF AG

Inventor： AICHINGER HEINRICH DR ,  RUPPEL WILHELM DR ,  SEUBERT ROLF DR ,  BOEHNING KARL-HEINZ DR ,  SCHEIDMEIR WALTER DR ,  SCHMIDT JOHANNES DR ,  SCHWARZMANN MATTHIAS DR

IPC: B01J23/18 ,  B01J8/02 ,  B01J23/22 ,  B01J27/198 ,  C07B61/00 ,  C07C51/265 ,  C07D307/89

Abstract: Preparation of phthalic anhydride in a tubular reactor equipped with separate salt baths, in which the first catalyst bed relative to the direction of flow is operated at a salt bath temperature which is higher by 2 to 20 DEG C than the following bed or the following beds.