公开(公告)号：MY122991A

公开(公告)日：2006-05-31

申请号：MYPI20011884

申请日：2001-04-20

Applicant: BASF AG

Inventor： DR EBERHARD FUCHS ,  DR PETER BA?LER ,  DR JOHANN-PETER MELDER ,  DIETER BAUMANN ,  DR ROLF-HARTMUTH FISCHER

IPC: C07D201/08 ,  C07D223/12

Abstract: A PROCESS FOR THE PREPARATION OF CAPROLACTAM, WHEREIN (A) A MIXTURE (I) CONTAINING 6-AMINOCAPRONITRILE AND WATER IS CAUSED TO REACT IN THE VAPOR PHASE IN THE PRESENCE OF A CATALYST TO FORM A MIXTURE (II) CONTAINING CAPROLACTAM, AAMMONIA, WATER , HIGH BOILING COMPONENTS AND LOW BOILING COMPONENTS, (B)AMMONIA IS REMOVED FROM MIXTURE (II) TO GIVE A MIXTURE (III) COMPONENTS AND LOW BOILING COMPONENTS, (C) WATER IS REMOVED FROM MIXTURE (III) TO GIVE A MIXTURE (IV) CONTAINING CAPROLACTAM, HIGH BOILING COMPONENTS AND LOW BOILING AND (D) A SOLID V CONTAINING CAPROLACTAM IS THEN THE OBTAINED FROM THE MIXTURE (IV) BY RECRYSTALLIZATION, THE PROPOTION BY WEIGHT OF CAPROLACTAM IN SOILD (V) BEING GREATER THAN IN MIXTURE (IV).

公开(公告)号：MY124889A

公开(公告)日：2006-07-31

申请号：MYPI20011961

申请日：2001-04-26

Applicant: BASF AG

Inventor： DR EBERHARD FUCHS ,  DR FRANK OHLBACH ,  DR PETER BA?LER ,  DR JOHANN-PETER MELDER ,  DIETER BAUMANN ,  DR ROLF-HARTMUTH FISCHER

IPC: C07D201/02 ,  C07D223/10 ,  C07B61/00 ,  C07D201/08 ,  C07D201/16

Abstract: A PROCESS FOR THE PREPARATION OF CAPROLACTAM IS PROVIDED, WHEREIN A) A MIXTURE (?) CONTAINING 6-AMINOCAPRONITRILE AND WATER IS REACTED IN THE LIQUID PHASE, IN THE PRESENCE OF A CATALYST, TO GIVE A MIXTURE (??) CONTAINING CAPROLACTAM, AMMONIA, WATER, HIGH-BOILING COMPONENTS AND LOW-BOILING COMPONENTS, B) AMMONIA IS THEN REMOVED FROM THE MIXTURE (??) TO GIVE A MIXTURE (???) CONTAINING CAPROLACTAM, WATER, HIGH-BOILING, COMPONENTS AND LOW-BOILING COMPONENTS, C) WATER IS THEN REMOVED FROM THE MIXTURE (???) TO GIVE A MIXTURE (?V) CONTAINING CAPROLACTAM, HIGH-BOILING COMPONENTS AND LOW-BOILING COMPONENTS, AND D) A SOLID (V) CONTAINING CAPROLACTAM IS THEN OBTAINED FROM THE MIXTURE (?V) BY CRYSTALLIZATION, THE PROPORTION BY WEIGHT OF CAPROLACTAM IN THE SOLID (V) BEING GREATER THAN IN THE MIXTURE (?V).