公开(公告)号：MY112291A

公开(公告)日：2001-05-31

申请号：MYPI19951775

申请日：1995-06-28

Applicant: BASF AG

Inventor： EBERHARD FUCHS ,  TOM WITZEL

IPC: C07D201/08

Abstract: CYCLIC LACTAMS ARE PREPARED BY REACTING AN AMINOCARBOXYLIC ACID COMPOUND OF THE FORMULA IH2N-(CH2)M-COR1 (I)WHERE R1 IS -OH, -O-C1-C12-ALKYL OR -NR2RJ AND R2 AND R3, INDEPENDENTLY OF ONE ANOTHER, ARE EACH HYDROGEN, C1-C12-ALKYL OR C5-C8-CYCLOALKYL AND M IS AN INTEGER FROM 3 TO 12, WITH WATER BY A PROCESS IN WHICH THE REACTION IS CARRIED OUT IN THE LIQUID PHASE USING A HETEROGENEOUS CATALYST.

公开(公告)号：MY112192A

公开(公告)日：2001-04-30

申请号：MYPI19953607

申请日：1995-11-24

Applicant: BASF AG

Inventor： EBERHARD FUCHS ,  GUNTHER ACHHAMMER

IPC: C07D201/08 ,  C07D223/10

Abstract: CAPROLACTAM IS PREPARED BY REACTING A SOLUTION OF 6-AMINOCAPRO-NITRILE WITH WATER IN THE LIQUID PHASE AT ELEVATED TEMPERATURES BY A PROCESS IN WHICH(a) AN AQUEOUS SOLUTION OF 6-AMINOCAPRONITRILE IN THE LIQUID PHASE IS HEATED WITHOUT THE ADDITION OF A CATALYST IN A REACTOR A TO GIVE A MIXTURE I CONSISTING ESSENTIALLY OF WATER, CAPROLACTAM AND A HIGH-BOILING FRACTION (HIGH BOILER), THEN(b) THE WATER IS REMOVED FROM THE RESULTING MIXTURE I TO GIVE A MIXTURE II CONSISTING ESSENTIALLY OF CAPROLACTAM AND THE HIGH BOILERS, THEN(c) THE CAPROLACTAM AND THE HIGH BOILERS FROM MIXTURE II ARE SEPARATED FROM ONE ANOTHER BY DISTILLATION, AND THEN EITHER (D1) THE HIGH BOILERS FROM STAGE (C) ARE FED INTO THE REACTOR A OF STAGE (A) OR(D2) THE HIGHTBOILERS ARE HEATED SIMILARLY TO STAGE (A) IN A FURTHER REACTOR B AND THEN WORKED UP SIMILARLY TO STAGES (B) AND (C) TO GIVE FURTHER CAPROLACTAM, OR(D3) THE HIGH BOILERS ARE HEATED UNDER REDUCED PRESSURE IN THE PRESENCE OF A BASE IN A REACTOR C AND THE REACTED MIXTURE IS WORKED UP BY DISTILLATION TO GIVE CAPROLACTAM.

公开(公告)号：MY120214A

公开(公告)日：2005-09-30

申请号：MYPI9702639

申请日：1997-06-13

Applicant: BASF AG

Inventor： EBERHARD FUCHS

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

Abstract: CRUDE CAPROLACTAM IS PURIFIED BY REACTION WITH A COMPLEX HYDRIDE OF BORON OR OF ALUMINUM.

公开(公告)号：MY111913A

公开(公告)日：2001-02-28

申请号：MYPI19943084

申请日：1994-11-18

Applicant: BASF AG

Inventor： EBERHARD FUCHS ,  TOM WITZEL

IPC: C07D201/08 ,  C07D223/10

Abstract: A PROCESS FOR PREPARING CYCLIC LACTAMS BY REACTING AMINO CARBONITRILES WITH WATER IN LIQUIDPHASE IN THE PRESENCE OF HETEROGENEOUS CATALYSTS BASED ON'' TITANIUM DIOXIDE, ZIRCONIUM OXIDE, CERIUMOXIDE AND ALUMINUM OXIDE.

公开(公告)号：MY114039A

公开(公告)日：2002-07-31

申请号：MYPI19965354

申请日：1996-12-19

Applicant: BASF AG

Inventor： LUTZ HILPRECHT ,  GUNTHER ACHHAMMER ,  EBERHARD FUCHS ,  WERNER SCHNURR ,  ROLF FISCHER ,  GUIDO VOIT ,  PETER BASSLER ,  HERMANN LUYKEN

IPC: C07D201/08 ,  C07C209/48 ,  C07C209/86 ,  C07C211/12 ,  C07D209/48

Abstract: CAPROLACTAM AND HEXAMETHYLENEDIAMINE ARE PREPARED SIMULTANEOUSLY STARTING FROM ADIPONITRILE.

公开(公告)号：MY112193A

公开(公告)日：2001-04-30

申请号：MYPI19953649

申请日：1995-11-28

Applicant: BASF AG

Inventor： EBERHARD FUCHS ,  GUNTHER ACHHAMMER

IPC: C07D201/08 ,  C07D223/10

Abstract: CAPROLACTAM IS PREPARED BY HEATING 6-AMINOCAPRONITRILE IN THE PRESENCE OF A HETEROGENEOUS CATALYST AND WATER UNDER SUPER-ATMOSPHERIC PRESSURE BY A METHOD IN WHICH (a) 6-AMINOCAPRONITRILE, OR A MIXTURE CONTAINING ESSENTIALLY 6-AMINOCAPRONITRILE, AND WATER AND A LOW-BOILING OR A HIGH-BOILING ALCOHOL ARE HEATED IN THE PRESENCE OF A HETEROGENEOUS CATALYST IN A REACTOR A TO GIVE A MIXTURE I,(b) MIXTURE I IS THEN DISTILLED TO GIVE A TOP FRACTION, CAPROLACTAM AND A BOTTOM PRODUCT, AMMONIA BEING REMOVED BEFORE THE DISTILLATION IF IT IS PRESENT IN MIXTURE I, AND THEN (C1) THE TOP FRACTION IS FED INTO THE REACTOR A OF STAGE (A), IF DESIRED THE TOP FRACTION BEING MIXED WITH THE ALCOHOL OR WATER OR 6-AMINOCAPRONITRILE USED IN STAGE (A) BEFORE BEING FED INTO THE REACTOR A, OR(C2) THE TOP''FRACTION, IF DESIRED WITH THE BOTTOM PRODUCT FROM STAGE (B), IS FED INTO A REACTOR B, THE TOP FRACTION BEING MIXED, IF DESIRED, WITH THE ALCOHOL OR WATER OR 6-AMINOCAPRO-NITRILE USED IN STAGE (A) BEFORE BEING FED INTO THE REACTOR B, AND CAPROLACTAM IS THEN OBTAINED SIMILARLY TO STAGE (B) BY DISTILLATION, AND EITHER(D1) THE BOTTOM PRODUCT FROM STAGE (B) IS FED INTO THE REACTOR A OF STAGE (A) OR(D2) IF DESIRED WATER AND IF DESIRED A LOW-BOILING OR A HIGH-BOILING ALCOHOL ARE ADDED TO THE BOTTOM PRODUCT AND THE LATTER IS THEN HEATED SIMILARLY TO STAGE (A) IN A FURTHER REACTOR C TO GIVE A REACTED MIXTURE, FROM WHICH CAPROLACTAM IS OBTAINED BY DISTILLATION, OR (D3) WATER IS ADDED TO THE BOTTOM PRODUCT, WHICH IS THEN HEATED IN A REACTOR D WITHOUT THE ADDITION OF A CATALYST TO GIVE A REACTED MIXTURE, AND CAPROLACTAM IS OBTAINED FROM SAID REACTED MIXTURE BY DISTILLATION, OR(D4)THE BOTTOM PRODUCT TO WHICH WATER AND A BASE HAVE BEEN ADDED IS HEATED IN A REACTOR E TO GIVE A REACTED MIXTURE, FROM WHICH CAPROLACTAM IS OBTAINED BY DISTILLATION.

公开(公告)号：MY111427A

公开(公告)日：2000-04-29

申请号：MYPI19943086

申请日：1994-11-18

Applicant: BASF AG

Inventor： EBERHARD FUCHS ,  TOM WITZEL

IPC: C07D201/08 ,  C07D223/10

Abstract: CYCLIC LACTAMS ARE PREPARED BY REACTING AMINO CARBONITRILES WITH WATER IN LIQUID PHASE IN A FIXED BED REACTOR IN THE PRESENCE OF HETEROGENEOUS CATALYST WHICH HAVE NO SOLUBLE CONSTITUENTS UNDER REACTION CONDITIONS.