公开(公告)号：DE59405784D1

公开(公告)日：1998-05-28

申请号：DE59405784

申请日：1994-12-14

Applicant: BASF AG

Inventor： HAMPRECHT GERHARD ,  FUCHS EBERHARD ,  GERBER MATTHIAS ,  WALTER HELMUT ,  WESTPHALEN KARL-OTTO

IPC: A01N43/40 ,  A01N43/90 ,  C07D213/80 ,  C07D471/04 ,  C07D491/04 ,  C07D491/048

Abstract: Pyridine-2,3-dicarboximides of the general formula I in which R denotes hydrogen, alkoxy or optionally substituted alkyl, cycloalkyl, alkenyl or alkynyl and R , R and R are identical or different and represent hydrogen, halogen, cyano, optionally substituted alkyl, benzyl, cycloalkyl, alkenyl, alkynyl, alkoxy, phenoxy or phenylthio, a 5- or 6-membered heterocyclic radical having one or two hetero atoms selected from the group consisting of oxygen, sulphur and nitrogen, or optionally substituted phenyl, with the proviso that a) R represents fluorine and R and R have the abovementioned general meaning, or b) R represents fluorine, chlorine, C1-C3-alkoxy, C2-C5-alkenyloxy, C2-C5-alkynyloxy, trifluoromethyl or cyano and R and R have the abovementioned general meanings, or c) R represents halogen or C1-C3-alkoxy, C2-C5-alkenyloxy, C2-C5-alkynyloxy and R and R have the abovementioned general meanings, with the exception of 5-chloropyridine-2,3-dicarboximide, and their environmentally compatible salts.C

公开(公告)号：SK84297A3

公开(公告)日：1998-03-04

申请号：SK84297

申请日：1995-12-22

Applicant: BASF AG

Inventor： ACHHAMMER GUNTHER ,  BASSLER PETER ,  FISCHER ROLF ,  FUCHS EBERHARD ,  LUYKEN HERMANN ,  SCHNURR WERNER ,  WITZEL TOM

IPC: C07D201/02 ,  C07C209/48 ,  C07C211/12 ,  C07D201/08 ,  C07D223/10

Abstract: The invention concerns the simultaneous preparation of caprolactam and hexamethylene diamine from adipodinitrile, by the following steps: (a) the adipodinitrile is partially hydrogenated, producing a mixture substantially containing 6-aminocapronitrile, hexamethylene diamine, ammonia, adipodinitrile and hexamethylene imine (= "the mixture"); (b) the mixture obtained in step (a) is distilled, producing ammonia, as the forerunnings, and a residue I, in the presence of a compound A which is inert in the distillation conditions, the ammonia not being separated totally; (c) the residue I, substantially containing "the mixture", inert compound A and ammonia, the ammonia content being less than that of the mixture used in step (b), is subjected to a second distillation, producing a mixture of the inert compound A and ammonia, as the forerunnings, and a residue II; (d) the base II, substantially containing "the mixture" and inert compound A, is subjected to distillation in a third column, producing the inert compound A, as the forerunnings, and a residue III; (e) the base III, substantially containing "the mixture" and optionally an inert compound B, is subjected to distillation in a fourth column, producing forerunnings KP1, which substantially contain hexamethylene imine, optionally inert compound B and hexamethylene diamine, and a residue IV; (f) the forerunnings KP1 are subjected in a fifth column to distillation, producing forerunnings KP2, which substantially contain hexamethylene imine and optionally inert compound B, and a residue V, which substantially contains hexamethylene diamine with a degree of purity of at least 95 %, the forerunnings KP2 being fed to the third column or optionally only partially fed to the third column, and the rest being discarded; and (g) the residue IV, substantially containing 6-aminocapronitrile and adipodinitrile, is subjected in a sixth column to distillation, producing 6-aminocapronitrile with a degree of purity of at least 95 %, as forerunnings, and adiponitrile in the residue. The resultant 6-aminocapronitrile is cyclized to form caprolactam.

公开(公告)号：MX9708676A

公开(公告)日：1998-02-28

申请号：MX9708676

申请日：1996-05-07

Applicant: BASF AG

Inventor： FUCHS EBERHARD ,  WITZEL TOM ,  FLICK KLEMENS

IPC: C07D201/08

Abstract: Las lactamas cíclicas se preparan mediante la reaccion de amino carbonitrilos con agua, en fase líquida, en presencia de catalizadores heterogéneos basados en dioxido de titanio con un contenido de rutilo en el rango desde 0.1 a 95 % por peso y un contenido de anatasa en el rango de 99.9 a 5 % por peso, en cada caso con base en el contenido total del dioxido de titanio.

公开(公告)号：BG101661A

公开(公告)日：1998-02-27

申请号：BG10166197

申请日：1997-06-24

Applicant: BASF AG

Inventor： ACHHAMMER GUENTHER ,  BASSLER PETER ,  FISCHER ROLF ,  FUCHS EBERHARD ,  LUYKEN HERMANN ,  SCHNURR WERNER ,  WITZEL TOM

IPC: C07D201/02 ,  C07C209/48 ,  C07C211/12 ,  C07D201/08 ,  C07D223/10

Abstract: The invention concerns the simultaneous preparation ofcaprolactam and hexamethylene diamine from adipodinitrile, by thefollowing steps: (a) the adipodinitrile is partially hydrogenated,producing a mixture substantially containing 6-aminocapronitrile,hexamethylene diamine, ammonia, adipodinitrile and hexamethyleneimine ( "the mixture"); (b) the mixture obtained in step (a) isdistilled, producing ammonia, as the forerunnings, and a residueI, in the presence of a compound A which is inert in thedistillation conditions, the ammonia not being separated totally;(c) the residue I, substantially containing 'the mixture", inertcompound A and ammonia, the ammonia content being less than thatof the mixture used in step (b), is subjected to a seconddistillation, producing a mixture of the inert compound A andammonia, as the forerunnings, and a residue II; (d) the base II,substantially containing "the mixture" and inert compound A, issubjected to distillation in a third column, producing the inertcompound A, as the forerunnings, and a residue III; (e) the baseIII, substantially containing "the mixture" and optionally aninert compound B, is subjected to distillation in a fourth column,producing forerunnings KP, which substantially containhexamethylene imine, optionally inert compound B and hexamethylenediamine, and a residue IV; (f) the forerunnings KP are subjectedin a fifth column to distillation, producing forerunnings KP2,which substantially contain hexamethylene imine and optionallyinert compound B, and a residue V, which substantially containshexamethylene diamine with a degree of purity of at least 95 %,the forerunnings KP2 being fed to the third column or optionallyonly partially fed to the third column, and the rest beingdiscarded; and (g) the residue IV, substantially containing6-aminocapronitrile and adipodinitrile, is subjected in a sixthcolumn to distillation, producing 6-aminocapronitrile with adegree of purity of at least 95 %, as forerunnings, andadiponitrile in the residue. The resultant 6-aminocapronitrile iscyclized to form caprolactam.

公开(公告)号：TR9701387T1

公开(公告)日：1998-02-21

申请号：TR9701387

申请日：1996-05-07

Applicant: BASF AG

Inventor： FUCHS EBERHARD ,  MELDER JOHANN-PETER ,  SCHNURR WERNER ,  FISCHER ROLF

IPC: C07D201/08 ,  C07D223/12

CPC classification number: C07D201/08 ,  C07D223/12

公开(公告)号：BR9509948A

公开(公告)日：1998-01-27

申请号：BR9509948

申请日：1995-11-29

Applicant: BASF AG

Inventor： FUCHS EBERHARD ,  ACHHAMMER GUNTHER

IPC: C07D201/08 ,  C07D223/10

Abstract: An improved process for the preparation of caprolactam by heating 6-aminocapronitrile in the presence of a heterogenous catalyst and water under superatmospheric pressure without rapid deactivation of the catalysts used. The process further includes the addition of a low or high boiling alcohol in the heating phase, after which the products are obtained by distillation. The process further includes a method of working up the top and bottom products of the reactors to achieve higher yields.

公开(公告)号：BR9509937A

公开(公告)日：1998-01-27

申请号：BR9509937

申请日：1995-11-22

Applicant: BASF AG

Inventor： FUCHS EBERHARD ,  WITZEL TOM

IPC: C07D201/12

Abstract: Caprolactam is prepared by cleaving oligomers or polymers containing essentially the repeating unit -[-N(H)-(CH2)5-C(O)-]- in the presence of a catalyst at elevated temperatures by a process in which the cleavage is carried out in the liquid phase in the presence of a heterogeneous catalyst and of an organic solvent.

公开(公告)号：AU3338597A

公开(公告)日：1998-01-07

申请号：AU3338597

申请日：1997-06-13

Applicant: BASF AG

Inventor： FUCHS EBERHARD

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

Abstract: PCT No. PCT/EP98/03098 Sec. 371 Date Dec. 9, 1998 Sec. 102(e) Date Dec. 9, 1998 PCT Filed Jun. 13, 1997 PCT Pub. No. WO97/47596 PCT Pub. Date Dec. 18, 1997Crude caprolactam is purified by reaction with a complex hydride of boron or of aluminum.

公开(公告)号：NO975268D0

公开(公告)日：1997-11-17

申请号：NO975268

申请日：1997-11-17

Applicant: BASF AG

Inventor： FUCHS EBERHARD ,  WITZEL TOM ,  FLICK KLEMENS

IPC: C07D201/08

Abstract: Production of cyclic lactams by the reaction of amino carboxylic acid nitriles with water, performed in the liquid phase in the presence of heterogeneous catalysts based on titanium dioxide with a rutile content in the range from 0.1 to 95 wt.% and an anatase content in the range from 99.9 to 5 wt.% in relation to the total titanium dioxide content.

公开(公告)号：SK63597A3

公开(公告)日：1997-11-05

申请号：SK63597

申请日：1995-11-22

Applicant: BASF AG

Inventor： FUCHS EBERHARD ,  WITZEL TOM

IPC: C07D201/12

Abstract: Caprolactam is prepared by cleaving oligomers or polymers containing essentially the repeating unit -[-N(H)-(CH2)5-C(O)-]- in the presence of a catalyst at elevated temperatures by a process in which the cleavage is carried out in the liquid phase in the presence of a heterogeneous catalyst and of an organic solvent.