公开(公告)号：DE19909168A1

公开(公告)日：2000-09-07

申请号：DE19909168

申请日：1999-03-03

Applicant: BASF AG

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

IPC: B01J35/02 ,  B01J21/06 ,  B01J23/755 ,  B01J35/10 ,  C07B61/00 ,  C07C209/36 ,  C07C211/50 ,  C07C209/32 ,  C07B43/04

Abstract: Production of amines (I) by hydrogenating at least one nitro compound (II) in presence of a supported catalyst (A) that contains nickel as catalytically active metal, optionally together with at least one metal of subgroups I, V, VI and/or VIII. The reduced and stabilized catalyst contains nickel crystallites with a bimodal distribution of size, with maxima at 30-80 and 81-150 Angstrom , and after reduction at 100 degrees C has a degree of reduction at least 70%. The support is one or more of zirconia, hafnia and/or silica and the reduced and passivated catalyst contains, by weight, 60-80% nickel; 0-20% silica; 0-40% zirconia and 0-4% hafnia.

公开(公告)号：DE102007039127A1

公开(公告)日：2008-03-06

申请号：DE102007039127

申请日：2007-08-18

Applicant: BASF AG

Inventor： KLOETZER MATTHIAS ,  BLANKERTZ HEINRICH-JOSEF ,  GEORGI GUNTER ,  STROEFER ECKHARD ,  KRASE VOLKER ,  SCHULZ GERHARD ,  WARZECHA ANDREAS

IPC: C07C263/12 ,  C07C263/18 ,  C07C265/14

Abstract: The invention relates to a multistage process for the continuous preparation of organic, distillable isocyanates, preferably diisocyanates, particularly preferably aliphatic or cycloaliphatic diisocyanates, by reaction of the corresponding organic amines with urea and alcohols to liberate ammonia and form low molecular weight monomeric urethanes and thermal dissociation of the latter, in which by-products formed are at least partly utilized.

公开(公告)号：AT372317T

公开(公告)日：2007-09-15

申请号：AT05700737

申请日：2005-01-07

Applicant: BASF AG

Inventor： KNOESCHE CARSTEN ,  SOHN MARTIN ,  PENZEL ULRICH ,  PALLASCH HANS-JUERGEN ,  GEORGI GUNTER ,  MACKENROTH WOLFGANG ,  SCHWARZ HANS VOLKMAR ,  MAIXNER STEFAN ,  MOLZ GERALD ,  STROEFER ECKHARD

IPC: C07C209/84 ,  C07C211/50

Abstract: The invention relates to a process for distillatively preparing TDA from a reactant stream comprising TDA, high boilers and low boilers in a dividing wall column in which a dividing wall is disposed in the longitudinal direction of the column to form an upper combined column region ( 2 ), a lower combined column region ( 3 ), a feed section ( 4 ) having a rectifying section ( 5 ) and stripping section ( 6 ), and also a withdrawal section ( 7 ) having a rectifying section ( 9 ) and stripping section ( 8 ), which comprises the following steps: a. feeding the reactant stream ( 13 ) into the feed section ( 4 ) of the dividing wall column ( 1 ); b. drawing off a low boiler fraction via the top of the column ( 11 ); c. drawing off TDA via a side draw ( 14 ) in the withdrawal section ( 7 ) of the dividing wall column ( 1 ); d. drawing off a low boiler fraction via the bottom of the column ( 12 ).

公开(公告)号：DE102004001456A1

公开(公告)日：2005-08-11

申请号：DE102004001456

申请日：2004-01-08

Applicant: BASF AG

Inventor： KNOESCHE CARSTEN ,  SOHN MARTIN ,  PENZEL ULRICH ,  PALLASCH HANS-JUERGEN ,  GEORGI GUNTER ,  MACKENROTH WOLFGANG ,  SCHWARZ HANS VOLKMAR ,  MAIXNER STEFAN ,  MOLZ GERALD ,  STROEFER ECKHARD

IPC: C07C209/84 ,  C07C211/50

Abstract: The invention relates to a process for distillatively preparing TDA from a reactant stream comprising TDA, high boilers and low boilers in a dividing wall column in which a dividing wall is disposed in the longitudinal direction of the column to form an upper combined column region ( 2 ), a lower combined column region ( 3 ), a feed section ( 4 ) having a rectifying section ( 5 ) and stripping section ( 6 ), and also a withdrawal section ( 7 ) having a rectifying section ( 9 ) and stripping section ( 8 ), which comprises the following steps: a. feeding the reactant stream ( 13 ) into the feed section ( 4 ) of the dividing wall column ( 1 ); b. drawing off a low boiler fraction via the top of the column ( 11 ); c. drawing off TDA via a side draw ( 14 ) in the withdrawal section ( 7 ) of the dividing wall column ( 1 ); d. drawing off a low boiler fraction via the bottom of the column ( 12 ).

公开(公告)号：DE10124600A1

公开(公告)日：2002-11-28

申请号：DE10124600

申请日：2001-05-21

Applicant: BASF AG

Inventor： VANOPPEN DOMINIC ,  SCHWAB EKKEHARD ,  MUELLER JOERN ,  PENZEL ULRICH ,  GEORGI GUNTER ,  WEIDNER BERND ,  TITTELBACH-HELMRICH DIETRICH ,  DAHLHAUS JUERGEN

IPC: B01J23/76 ,  B01J21/06 ,  B01J23/755 ,  B01J23/78 ,  B01J23/83 ,  B01J35/10 ,  B01J37/03 ,  B01J37/16 ,  C07B61/00 ,  C07C209/36 ,  C07C211/46 ,  C07C211/47 ,  C07C211/50 ,  C07C211/51 ,  C07C211/44

Abstract: Production of a supported nickel catalyst involves co-precipitating nickel and at least one other metal (M), selected from silicon, zirconium, hafnium, alkaline earth metals, yttrium, lanthanum and cerium, and optionally a Group 5-11 metal dopant, from a solution containing the corresponding metal salts onto a particulate titania (TiO2) support, and drying, calcining, reducing and optionally passivating the product. An Independent claim is included for a process in which the above catalyst is used.

公开(公告)号：DE10105277A1

公开(公告)日：2002-08-14

申请号：DE10105277

申请日：2001-02-02

Applicant: BASF AG

Inventor： ZEHNER PETER ,  BEY OLIVER ,  GEORGI GUNTER ,  MUELLER JOERN

IPC: C07B43/04 ,  C07B61/00 ,  C07C209/36 ,  C07C211/45 ,  C07C211/46 ,  C07C211/47 ,  C07C211/50 ,  C07B31/00

Abstract: The invention relates to a method for hydrogenating liquid organic compounds. Said method is characterised in that the hydrogen that is present in the reactor contains constituent parts of at least one gas that is inert during the hydrogenation reaction.