公开(公告)号：MY127068A

公开(公告)日：2006-11-30

申请号：MYPI20012613

申请日：2001-06-01

Applicant: BASF AG

Inventor： DR FRANK OHLBACH ,  DR PETER BA?LER ,  DR JOHANN-PETER MELDER ,  DR ANDREAS ANSMANN ,  HERMANN LUYKEN ,  DR ROLF-HARTMUTH FISCHER ,  DR STEFAN MAIXNER

IPC: C07D201/16 ,  C07D223/10 ,  B01D3/00 ,  C01C1/10 ,  C07D201/08

Abstract: A PROCESS FOR DISTILLATIVE REMOVAL OF AMMONIA FROM SOLUTIONS (I) WHICH INCLUDE A LACTAM AND AMMONIA COMPRISES EFFECTING SAID REMOVAL IN A DISTILLATION APPARATUS (A) AT AN ABSOLUTE PRESSURE OF LESS THAN 10X105 KPA (10 BAR).

公开(公告)号：MY127246A

公开(公告)日：2006-11-30

申请号：MYPI20011864

申请日：2001-04-19

Applicant: BASF AG

Inventor： HERMANN LUYKEN ,  DR FRANK OHLBACH ,  DR ANDREAS ANSMANN ,  DR JOHANN-PETER MELDER ,  DR STEFAN MAIXNER ,  DR ROLF-HARTMUTH FISHER ,  DR PETER BABLER

IPC: C07D201/08 ,  C07D223/10 ,  C07D201/16

Abstract: A PROCESS IS PROVIDED FOR THE PREPARATION OF CYCLIC LACTAMS OF FORMULA (??): IN WHICH N AND M CAN EACH HAVE THE VALUES 0,1, 2, 3, 4, 5, 6, 7, 8 AND 9 AND THE SUM OF N+M IS AT LEAST 3, PREFERABLY AT LEAST 4, AND R1 AND R2 ARE C6-C12-ARYL, C5?C7-CYCLOALKYL OR C6?C12-ARYL GROUPS, BY REACTING A COMPOUND (?) OF THE FORMULA (?) IN WHICH R1, R2, M AND N ARE AS DEFINED ABOVE AND R ARE [SIC] NITRILE, CARBOXAMIDE AND CARBOXYLIC ACID GROUPS, WITH STEAM IN THE GAS PHASE.