公开(公告)号：DE10021192A1

公开(公告)日：2001-11-08

申请号：DE10021192

申请日：2000-05-03

Applicant: BASF AG

Inventor： BASLER PETER ,  BAUMANN DIETER ,  FISCHER ROLF ,  FUCHS EBERHARD ,  MELDER JOHANN-PETER ,  OHLBACH FRANK

IPC: C07D223/12 ,  C07D201/08 ,  C07D223/10

Abstract: The invention relates to a method for producing caprolactam, which is characterized by a) reacting, in the presence of a catalyst, a mixture (I) that contains 6-aminocapronitrile and water in the gaseous phase to give a mixture (II) that contains caprolactam, ammonia, water, high-boiling and low-boiling substances, subsequently b) removing the ammonia from mixture (II), thereby producing a mixture (III) that contains caprolactam, water, high-boiling and low-boiling substances, c) removing the water from mixture (III), thereby producing a mixture (IV) that contains caprolactam, high-boiling and low-boiling substances, and finally d) obtaining by crystallization a caprolactam-containing solid substance (V) from mixture (IV), the weight percentage of caprolactam in the solid substance (V) being higher than in mixture (IV).

公开(公告)号：DE10001401A1

公开(公告)日：2001-07-19

申请号：DE10001401

申请日：2000-01-14

Applicant: BASF AG

Inventor： TELES JOAQUIM HENRIQUE ,  REHFINGER ALWIN ,  BASLER PETER ,  RIEBER NORBERT ,  HEFNER WERNER ,  WENZEL ANNE ,  RUDOLF PETER

IPC: B01D3/00 ,  C07B61/00 ,  C07C5/42 ,  C07C11/06 ,  C07D301/12 ,  C07D301/32 ,  C07D303/04 ,  C07C7/148 ,  C07C7/04 ,  C07C11/00 ,  C07D301/19

Abstract: A mixture (M1) comprising an alkene and oxygen is worked up by a process in which (i) oxygen is removed from the mixture (M1) by a nondistillative method to give a mixture (M2) and (ii) the alkene is separated off from the mixture (M2) by distillation.

公开(公告)号：DE19947508A1

公开(公告)日：2001-04-05

申请号：DE19947508

申请日：1999-10-01

Applicant: BASF AG

Inventor： OHLBACH FRANK ,  FISCHER ROLF ,  LUYKEN HERMANN ,  MELDER JOHANN-PETER ,  MERGER MARTIN ,  ANSMANN ANDREAS ,  BASLER PETER

IPC: B01J23/745 ,  B01J37/18 ,  C07B61/00 ,  C07C209/48 ,  C07C211/12 ,  C07C231/06 ,  C07C237/06 ,  C01C1/04 ,  C07C255/04 ,  C07C255/24 ,  C07B35/02 ,  C07B31/00

Abstract: A process for the activation of passivated iron to form a catalytically active component by treatment with hydrogen at elevated temperature and pressure in the presence of a nitrile compound is claimed. Independent claims are included for: (1) the resulting iron catalyst; and (2) a hydrogenation process using the resulting heterogeneous iron catalyst.

公开(公告)号：DE19936547A1

公开(公告)日：2001-02-15

申请号：DE19936547

申请日：1999-08-04

Applicant: BASF AG

Inventor： TELES JOAQUIM HENRIQUE ,  REHFINGER ALWIN ,  BASLER PETER ,  RIEBER NORBERT ,  WENZEL ANNE ,  WALCH ANDREAS ,  HARDER WOLFGANG

IPC: C07B61/00 ,  C07D301/12 ,  C07D303/04 ,  C07B33/00

Abstract: The invention concerns a method for reacting an organic compound with a hydroperoxide using at least a heterogeneous catalyst. Said method is characterised in that the pH and the temperature of the reaction medium are modified during the reaction.

公开(公告)号：DE19839346A1

公开(公告)日：2000-03-02

申请号：DE19839346

申请日：1998-08-28

Applicant: BASF AG

Inventor： FISCHER ROLF ,  BASLER PETER ,  LUYKEN HERMANN ,  OHLBACH FRANK ,  MELDER JOHANN-PETER ,  MERGER MARTIN ,  ANSMANN ANDREAS ,  REHFINGER ALWIN ,  VOIT GUIDO

IPC: C07B61/00 ,  C07C209/48 ,  C07C209/86 ,  C07C211/12

Abstract: The invention relates to a method for the catalytic hydrogenation of adipodinitrile to hexamethylene diamine at a high temperature and at high pressure in the presence of catalysts based on elementary iron as the catalytic component, and ammonia as a solvent. The method is characterised in that a) adipodinitrile is hydrogenated at temperatures of 70 to 220 DEG C and at pressures of 100 to 400 bar in the presence of catalysts based on elementary iron as the catalytic component, and ammonia as a solvent to produce a mixture containing adipodinitrile, 6-aminocapronitrile, hexamethylene diamine and high boilers, until the sum of the 6-aminocapronitrile and adipodinitrile concentration is 1 to 50 wt. % in relation to the ammonia-free hydrogenation mixture; b) ammonia is separated out of the hydrogenation discharge; c) hexamethylene diamine is separated out of the remaining mixture; d) 6-aminocapronitrile and adipodinitrile are separated from the high boilers together or separately and e) 6-aminocapronitrile, adipodinitrile or their mixtures are returned to step a).

公开(公告)号：DE19830598A1

公开(公告)日：2000-01-13

申请号：DE19830598

申请日：1998-07-09

Applicant: BASF AG

Inventor： MERK CLAUDIA ,  BASLER PETER ,  FISCHER ROLF HARTMUTH ,  VOIT GUIDO ,  LUYKEN HERMANN

IPC: C07D295/02 ,  C07C209/48 ,  C07C209/82 ,  C07C209/84 ,  C07C211/12 ,  C07D295/023 ,  C25B3/25 ,  C25B3/04 ,  C07D295/00

Abstract: The invention relates to a method for reducing the quantity of an unsaturated cyclic imine (I) of formula (I) in a mixture containing hexamethylenediamine and an imine (I), R meaning an alkenyl radical with 3, 4, 5, 6, 7, 8, 9, 10, 11 carbon atoms belonging to the ring system, by electrochemically converting the imine (I) into a saturated cyclic amine of formula (II) in the presence of solvated protons.

公开(公告)号：DE19809686A1

公开(公告)日：1999-09-09

申请号：DE19809686

申请日：1998-03-06

Applicant: BASF AG

Inventor： VOIT GUIDO ,  OHLBACH FRANK ,  LUYKEN HERMANN ,  MERGER MARTIN ,  REHFINGER ALWIN ,  FISCHER ROLF HARTMUTH ,  BASLER PETER ,  ANSMANN ANDREAS

IPC: B01J23/02 ,  B01J23/78 ,  C07B61/00 ,  C07C209/00 ,  C07C209/48 ,  C07C211/09 ,  C07C211/12 ,  C07C253/30 ,  C07C255/24

Abstract: The invention relates to a method for hydrogenating aliphatic alpha-, omega-dinitriles in the presence of a heterogeneous fixed-bed catalyst. The method is characterised in that the reaction mixture contains 2 mu mol to 30 mmol Na, K, Rb, Cs, Mg, Ca, Sr, Ba or Mn or mixtures thereof in the form of a basic salt, in relation to 10 mol of the aliphatic alpha-, omega-dinitrile used.