公开(公告)号：EP1575904B1

公开(公告)日：2010-10-13

申请号：EP03789262.7

申请日：2003-12-13

Applicant: BASF SE

Inventor： SOHN, Martin ,  STROEFER, Eckhard ,  NEVEJANS, Filip ,  PENZEL, Ulrich ,  PALLASCH, Hans-Jürgen ,  LEUTHOLD, Rene ,  BRODHAGEN, Andreas ,  WÖLFERT, Andreas ,  MACKENROTH, Wolfgang ,  MAURER, Markus

IPC: C07C263/10 ,  C07C265/14

CPC classification number: C07C263/10 ,  C07C265/14

Abstract: The invention relates to a method for the continuous production of polyisocyanates by reaction of organic amines with phosgene, characterised in that the reaction occurs in at least three stages, whereby the first stage is in a mixing unit, the second stage in at least one residence time unit and the third stage in at least one material separating apparatus and the pressure in each subsequent stage is lower than in the previous stage.

公开(公告)号：EP2155386A1

公开(公告)日：2010-02-24

申请号：EP08750014.6

申请日：2008-05-05

Applicant: BASF SE

Inventor： COELHO TSOU, Joana ,  SCHWAB, Ekkehard ,  KUBANEK, Petr ,  MACKENROTH, Wolfgang ,  OEHLENSCHLÄGER, Steffen ,  VOSS, Hartwig ,  NETO, Samuel

IPC: B01J23/89 ,  C07C209/36

CPC classification number: B01J23/892 ,  B01J21/18 ,  B01J23/8933 ,  B01J23/8966 ,  B01J37/03 ,  B01J37/16 ,  B01J37/18 ,  C07C209/36 ,  C07C211/50

Abstract: The invention relates to a method for producing aromatic amines by the catalytic hydration of the corresponding nitro compounds, particularly for producing toluylenediamine by the hydration of dinitrotoluene, characterized in that hydration catalysts are employed, in which a mixture of nickel, palladium and an addition element, selected from the group containing cobalt, iron, vanadium, manganese, chromium, platinum, iridium, gold, bismuth, molybdenum, selenium, tellurium, stannous, and antimony, is present as the active component on a carrier.

Abstract translation: 本发明涉及一种通过相应硝基化合物的催化水合制备芳香胺的方法，特别是用于通过二硝基甲苯的水合生产甲苯二胺，其特征在于使用水合催化剂，其中使用镍，钯和添加元素 选自包含钴，铁，钒，锰，铬，铂，铱，金，铋，钼，硒，碲，亚锡和锑的组中的至少一种作为活性组分存在于载体上。

公开(公告)号：EP1575908B2

公开(公告)日：2010-01-20

申请号：EP03785813.1

申请日：2003-12-13

Applicant: BASF SE

Inventor： SOHN, Martin ,  STROEFER, Eckhard ,  NEVEJANS, Filip ,  PENZEL, Ulrich ,  PALLASCH, Hans-Jürgen ,  VAN DEN ABEEL, Peter ,  DEBERDT, Filip ,  JACOBS, Jan D. ,  MACKENROTH, Wolfgang

IPC: C07C263/20

CPC classification number: C07C263/10 ,  C07C263/20 ,  Y10S203/08 ,  C07C265/14

Abstract: The invention relates to a method for producing isocyanates by reacting amines with phosgene in the presence of inert organic solvents inside a reactor and by subsequently processing the reaction mixture exiting the reactor. The invention is characterized in that the separating out of the solvent ensues in a two-step or multi-step, preferably two-step distillation process, and the solvent is separated out in a first apparatus under a pressure of 0.1 to 15 bar and in a second or other apparatuses under a pressure of 1 to 900 mbar. The condensation heat of the solvent vapor from the first apparatus is used for partially or completely vaporizing solvent in the second apparatus.