公开(公告)号：JP2000256279A

公开(公告)日：2000-09-19

申请号：JP2000057164

申请日：2000-03-02

Applicant: BASF AG

Inventor： SANDER MICHAEL ,  PEISKER DIETMAR ,  WELLNER KLAUS ,  BRAUNSBERG HOLGER ,  GEORGI GUNTER ,  PENZEL ULRICH

IPC: B01J35/02 ,  B01J21/06 ,  B01J23/755 ,  B01J35/10 ,  C07B61/00 ,  C07C209/36 ,  C07C211/50

Abstract: PROBLEM TO BE SOLVED: To provide an industrially practicable method for producing an amine by hydrogenation, consuming a small amount of a catalyst, greatly avoiding the occurrence of secondary reaction, capable of setting an excellent catalyst balance, excellently separating an inactive catalytic component. SOLUTION: This method comprises producing an amine by hydrogenating a compound containing at least one nitro group in the presence of a supported catalyst containing at least nickel as a catalytic active metal. The reduced and stabilized supported catalyst contains nickel microcrystal showing a two mode nickel microcrystal particle size distribution having maximum values at 30-80 Angstrom (300-800 nm) and 81-150 Angstrom (810-1,500 nm). The catalyst having 60-80 mass % nickel content, 0-20 mass % SiO2 content, 0-40 mass % ZrO2 content and 0-4 mass % HfO2 content in a reduced passivation state and at least 70% degree of reduction after further reduction for 1 hour at 100 deg.C is used.

公开(公告)号：BR0311461A

公开(公告)日：2005-03-29

申请号：BR0311461

申请日：2003-06-06

Applicant: BASF AG

Inventor： NOACK RAINER ,  SANDER MICHAEL ,  HENNINGSEN MICHAEL

IPC: C07D405/06 ,  C07D521/00

Abstract: The present invention relates to a process for the preparation of 1,2,4-triazol-1-ylmethyloxiranes of the formula I in which A and B are identical or different and, independently of one another, are C 1 -C 4 -alkyl, phenyl-C 1 -C 2 -alkyl, C 3 -C 6 -cycloalkyl, C 3 -C 6 -cycloalkenyl, tetrahydropyranyl, tetrahydrofuranyl, dioxanyl or phenyl, where the phenyl radical can carry one to three substituents chosen from the group: halogen, nitro, C 1 -C 4 -alkyl, C l -C 4 -alkyloxy, phenoxy, amino, C 1 -C 2 -haloalkyl or phenylsulfonyl, which comprises reacting a) an oxirane of the formula II in which A and B have the meanings given above and L is a nucleophilically substitutable leaving group, with 4-amino-1,2,4-triazole of the formula III to give 4-amino-1,2,4-triazolium salts of the formula IV and b) deaminating the 4-amino-1,2,4-triazolium salts IV with alkali metal nitrites and acid or organic nitrites to give 1,2,4-triazol-1-ylmethyloxiranes of the formula I, and to 4-aminotriazolium salts of the formula IV as intermediates.

公开(公告)号：DE50202122D1

公开(公告)日：2005-03-03

申请号：DE50202122

申请日：2002-05-14

Applicant: BASF AG

Inventor： NOACK RAINER ,  SANDER MICHAEL ,  KAISER REINHARD

IPC: C07D405/00 ,  C07D405/06

公开(公告)号：AU2003293872A1

公开(公告)日：2004-07-14

申请号：AU2003293872

申请日：2003-12-13

Applicant: BASF AG

Inventor： SOHN MARTIN ,  STROEFER ECKHARD ,  NEVEJANS FILIP ,  PENZEL ULRICH ,  PALLASCH HANS-JURGEN ,  SANDER MICHAEL ,  SCHWARZ HANS VOLKMAR ,  MACKENROTH WOLFGANG

IPC: C07C263/10 ,  C07C263/20 ,  C07C265/14

Abstract: The present invention relates to a process for preparing isocyanates by reaction of amines with phosgene in a reactor and subsequent separation of the isocyanate from the reaction mixture leaving the reactor and purification of the isocyanate, wherein the separation and purification of the isocyanate is carried out in a column having a pressure at the top of 1-950 mbar, preferably 5-50 mbar, particularly preferably 10-20 mbar, and a temperature at the bottom of 90-250° C., preferably 120-170° C., particularly preferably 130-150° C., and the pure isocyanate stream is preferably taken off in liquid or gaseous form at a side offtake of the column.

公开(公告)号：CA2488828A1

公开(公告)日：2003-12-31

申请号：CA2488828

申请日：2003-06-06

Applicant: BASF AG

Inventor： HENNINGSEN MICHAEL ,  NOACK RAINER ,  SANDER MICHAEL

IPC: C07D405/06 ,  C07D521/00

Abstract: The invention relates to a method for the production of 1,2,4-triazol-1-yl- methyl-oxiranes of formula (I) wherein A and B are the same or different and independently represent C1-C4-alkyl, phenyl-C1-C2-alkyl,. C3 --C6-cycloalkyl , C3-C6-cycloalkenyl, tetrahydropyranyl, tetrahydrofuranyl, dioxanyl or phenyl . The phenyl radical can contain 1 3 substituents selected form the group: halogen, nitro, C1-C4-alkyl, C1-C4-alkyloxy, phenoxy, amino, C1-C2- halogenalkyl or phenylsulfonyl, characterised in that a) an oxirane of formu la (II) wherein A and B have the above mentioned meaning and L represents a nucleophilically substitutable leaving group which is reacted with 4-amino- 1,2,4-triazol of formula (III), IV to form 4-amino-1,2,4-triazolium salts of formula (IV). The invention also relates to a method for the production of l,2,4-triazolylmethyl-oxiranes.

公开(公告)号：DE19827086A1

公开(公告)日：1999-12-23

申请号：DE19827086

申请日：1998-06-18

Applicant: BASF AG

Inventor： THERRE JOERG ,  SCHWARZ HANS VOLKMAR ,  MAURER MARKUS ,  SANDER MICHAEL ,  STROEFER ECKHARD ,  LEUTHOLD RENE ,  HANTEL BURGHARD ,  RICHTER SIEGFRIED

IPC: C07C263/20 ,  C07C209/62 ,  C07C211/51 ,  C07C263/10 ,  C07C263/18 ,  C07C265/14 ,  C08G18/50 ,  C08G65/26

Abstract: The invention relates to a method for treating distillation residues from the synthesis of toluene diisocyanate by reacting the distillation residues with water. The invention is characterized in that the TDI distillation residues are reacted with water in a continuos or semi-continuos method in a back-mixed reactor in the presence of hydrolyzates.

公开(公告)号：DE50306914D1

公开(公告)日：2007-05-10

申请号：DE50306914

申请日：2003-06-06

Applicant: BASF AG

Inventor： NOACK RAINER ,  SANDER MICHAEL ,  HENNINGSEN MICHAEL

IPC: C07D405/06 ,  C07D521/00

Abstract: The present invention relates to a process for the preparation of 1,2,4-triazol-1-ylmethyloxiranes of the formula I in which A and B are identical or different and, independently of one another, are C 1 -C 4 -alkyl, phenyl-C 1 -C 2 -alkyl, C 3 -C 6 -cycloalkyl, C 3 -C 6 -cycloalkenyl, tetrahydropyranyl, tetrahydrofuranyl, dioxanyl or phenyl, where the phenyl radical can carry one to three substituents chosen from the group: halogen, nitro, C 1 -C 4 -alkyl, C l -C 4 -alkyloxy, phenoxy, amino, C 1 -C 2 -haloalkyl or phenylsulfonyl, which comprises reacting a) an oxirane of the formula II in which A and B have the meanings given above and L is a nucleophilically substitutable leaving group, with 4-amino-1,2,4-triazole of the formula III to give 4-amino-1,2,4-triazolium salts of the formula IV and b) deaminating the 4-amino-1,2,4-triazolium salts IV with alkali metal nitrites and acid or organic nitrites to give 1,2,4-triazol-1-ylmethyloxiranes of the formula I, and to 4-aminotriazolium salts of the formula IV as intermediates.

公开(公告)号：DK1395579T3

公开(公告)日：2005-04-11

申请号：DK02740595

申请日：2002-05-14

Applicant: BASF AG

Inventor： KAISER REINHARD ,  SANDER MICHAEL ,  NOACK RAINER

IPC: C07D405/06

公开(公告)号：AT287401T

公开(公告)日：2005-02-15

申请号：AT02740595

申请日：2002-05-14

Applicant: BASF AG

Inventor： SANDER MICHAEL ,  NOACK RAINER ,  KAISER REINHARD

IPC: C07D405/06 ,  C07D521/00

公开(公告)号：DE10260093A1

公开(公告)日：2004-07-01

申请号：DE10260093

申请日：2002-12-19

Applicant: BASF AG

Inventor： SOHN MARTIN ,  STROEFER ECKHARD ,  NEVEJANS FILIP ,  PENZEL ULRICH ,  PALLASCH HANS-JUERGEN ,  SANDER MICHAEL ,  SCHWARZ HANS VOLKMAR ,  MACKENROTH WOLFGANG

IPC: C07C263/10 ,  C07C263/20 ,  C07C265/14 ,  B01D3/00

Abstract: The present invention relates to a process for preparing isocyanates by reaction of amines with phosgene in a reactor and subsequent separation of the isocyanate from the reaction mixture leaving the reactor and purification of the isocyanate, wherein the separation and purification of the isocyanate is carried out in a column having a pressure at the top of 1-950 mbar, preferably 5-50 mbar, particularly preferably 10-20 mbar, and a temperature at the bottom of 90-250° C., preferably 120-170° C., particularly preferably 130-150° C., and the pure isocyanate stream is preferably taken off in liquid or gaseous form at a side offtake of the column.