公开(公告)号：EP1706370A1

公开(公告)日：2006-10-04

申请号：EP05700737.9

申请日：2005-01-07

Applicant: BASF Aktiengesellschaft

Inventor： KNÖSCHE, Carsten ,  SOHN, Martin ,  PENZEL, Ulrich ,  PALLASCH, Hans-Jürgen ,  GEORGI, Gunter ,  MACKENROTH, Wolfgang ,  SCHWARZ, Hans Volkmar ,  MAIXNER, Stefan ,  MOLZ, Gerald ,  STROEFER, Eckhard

IPC: C07C209/84 ,  C07C211/50

CPC classification number: C07C209/84 ,  C07C211/50

Abstract: The invention relates to a method for the distillative recovery of TDA from an educt flow containing TDA, high boilers, and low boilers in a partition column in which a partition is disposed in the longitudinal direction of the column so as to form a common upper column zone (2), a common bottom column zone (3), a feeding section (4) that encompasses a rectification section (5) and a stripping section (6), and a withdrawal section (7) encompassing a rectification section (9) and a stripping section (8). The inventive method comprises the following steps: A) the educt flow (13) is delivered to the feeding section (4) of the partition column (1); B) a low boiler fraction is discharged via the top (11) of the column; C) TDA is discharged via a lateral discharge point (14) located in the withdrawal section (7) of the partition column (1); D) a high boiler fraction is discharged via the bottom (12) of the column.

公开(公告)号：EP1646604A1

公开(公告)日：2006-04-19

申请号：EP04740321.7

申请日：2004-06-25

Applicant: BASF Aktiengesellschaft

Inventor： STEINBRENNER, Ulrich ,  STROEFER, Eckhard ,  SOHN, Martin ,  QUASCHNING, Veronika ,  MÖHWALD, Helmut ,  THIELE, Kai ,  DEBERDT, Filip ,  JACOBS, Jan, D. ,  PINKOS, Rolf

IPC: C07C209/78 ,  C07C209/86 ,  C07C211/50

CPC classification number: C07C209/86 ,  C07C209/78 ,  C07C211/50

Abstract: The invention relates to a method for the production of diaminodiarylmethanes, comprising the steps: a) reaction of an aromatic amine with an agent liberating methylene groups in the presence of homogenous acid catalysts, b) removal of the homogenous acid catalyst from the reaction product, c) work-up and purification of the reaction product, whereby the homogenous acid catalyst is removed from the reaction mixture by adsorption on a solid adsorption agent.

公开(公告)号：EP1444189A2

公开(公告)日：2004-08-11

申请号：EP02787574.9

申请日：2002-11-05

Applicant: BASF AKTIENGESELLSCHAFT

Inventor： STRÖFER, Eckhard ,  SOHN, Martin ,  HASSE, Hans ,  SCHILLING, Klemens

IPC: C07C47/04 ,  C07C47/058 ,  C07C45/82 ,  C07C45/79

CPC classification number: C07C47/04 ,  C07C45/79 ,  C07C45/82 ,  C07C47/02

Abstract: The invention relates to an aqueous formaldehyde solution, containing formaldehyde in the form of monomeric formaldehyde, methylene glycol and polyoxymethylene glycols in a total concentration x ≥ 65 wt. %. Said solution is characterized in that the average molar mass M of the polyoxymethylene glycols is equal or inferior to the values, which are obtained according to formula I, depending on the formaldehyde concentration, whereby M represents the average molar mass and x the total concentration of formaldehyde in the form of monomeric formaldehyde, methylene glycol and polyoxymethylene glycols in wt. % (formaldehyde total concentration).

公开(公告)号：EP1646604B1

公开(公告)日：2008-01-02

申请号：EP04740321.7

申请日：2004-06-25

Applicant: BASF Aktiengesellschaft

Inventor： STEINBRENNER, Ulrich ,  STROEFER, Eckhard ,  SOHN, Martin ,  QUASCHNING, Veronika ,  MÖHWALD, Helmut ,  THIELE, Kai ,  DEBERDT, Filip ,  JACOBS, Jan, D. ,  PINKOS, Rolf

IPC: C07C209/78 ,  C07C209/86 ,  C07C211/50

CPC classification number: C07C209/86 ,  C07C209/78 ,  C07C211/50

Abstract: The invention relates to a method for the production of diaminodiarylmethanes, comprising the steps: a) reaction of an aromatic amine with an agent liberating methylene groups in the presence of homogenous acid catalysts, b) removal of the homogenous acid catalyst from the reaction product, c) work-up and purification of the reaction product, whereby the homogenous acid catalyst is removed from the reaction mixture by adsorption on a solid adsorption agent.

Abstract translation: 本发明涉及生产二氨基二芳基甲烷的方法，该方法包括以下步骤：a）在均相酸催化剂存在下，芳族胺与释放亚甲基的试剂反应，b）从反应产物中除去均相酸催化剂， c）反应产物的处理和纯化，由此通过吸附在固体吸附剂上从反应混合物中除去均相酸催化剂。

公开(公告)号：EP1575905A1

公开(公告)日：2005-09-21

申请号：EP03789263.5

申请日：2003-12-13

Applicant: BASF Aktiengesellschaft

Inventor： SOHN, Martin ,  STROEFER, Eckhard ,  NEVEJANS, Filip ,  PENZEL, Ulrich ,  PALLASCH, Hans-Jürgen ,  SANDER, Michael ,  SCHWARZ, Hans, Volkmar ,  MACKENROTH, Wolfgang

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

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

Abstract: The invention relates to a method for producing isocyanates by reacting amines with phosgene inside a reactor followed by separating the isocyanate out from the reaction mixture exiting the reactor and purifying this isocyanate. The invention is characterized in that the isocyanate is separated out and purified in a column with a top pressure of 1 to 950 mbar, preferably 5 to 50 mbar, particularly preferred 10 to 20 mbar, with a bottom temperature of 90 to 250 °C, preferably 120 to 170 °C, particularly preferred 130 to 150 °C, and that the pure isocyanate flow is withdrawn in liquid or gaseous form, preferably in a side-stream of the column.

公开(公告)号：EP1575908A1

公开(公告)日：2005-09-21

申请号：EP03785813.1

申请日：2003-12-13

Applicant: BASF Aktiengesellschaft

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.

公开(公告)号：EP1575906A1

公开(公告)日：2005-09-21

申请号：EP03789264.3

申请日：2003-12-13

Applicant: BASF Aktiengesellschaft

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

IPC: C07C263/10 ,  B01D53/70 ,  C01B7/07

CPC classification number: C01B7/0731 ,  B01D53/002 ,  B01D2257/2045 ,  B01D2257/2064 ,  C01B7/0712 ,  C01B32/80 ,  C07C263/10 ,  Y02P20/154 ,  C07C265/14 ,  C07C265/12 ,  C07C265/10

Abstract: The invention relates to a method for partially or completely separating a substance mixture consisting of hydrogen chloride and phosgene, optionally of solvents and optionally of low-boiling fractions and inert substances such as those that normally arise during the production of isocyanates by reacting amines with phosgene. The inventive method is characterized in that a partial or complete condensation of phosgene is firstly carried out followed by a distillation or stripping inside a column for removing the hydrogen chloride from the bottom product phosgene and lastly, a washing of the top product hydrogen chloride with the process solvent for absorbing the phosgene in the process solvent is carried out. A subsequent purification by means of adsorption on activated carbon or other appropriate methods can be used for removing solvent remnants.

公开(公告)号：EP1575904A1

公开(公告)日：2005-09-21

申请号：EP03789262.7

申请日：2003-12-13

Applicant: BASF Aktiengesellschaft

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：EP1706370B1

公开(公告)日：2007-09-05

申请号：EP05700737.9

申请日：2005-01-07

Applicant: BASF Aktiengesellschaft

Inventor： KNÖSCHE, Carsten ,  SOHN, Martin ,  PENZEL, Ulrich ,  PALLASCH, Hans-Jürgen ,  GEORGI, Gunter ,  MACKENROTH, Wolfgang ,  SCHWARZ, Hans Volkmar ,  MAIXNER, Stefan ,  MOLZ, Gerald ,  STROEFER, Eckhard

IPC: C07C209/84 ,  C07C211/50

CPC classification number: C07C209/84 ,  C07C211/50

Abstract: The invention relates to a method for the distillative recovery of TDA from an educt flow containing TDA, high boilers, and low boilers in a partition column in which a partition is disposed in the longitudinal direction of the column so as to form a common upper column zone (2), a common bottom column zone (3), a feeding section (4) that encompasses a rectification section (5) and a stripping section (6), and a withdrawal section (7) encompassing a rectification section (9) and a stripping section (8). The inventive method comprises the following steps: A) the educt flow (13) is delivered to the feeding section (4) of the partition column (1); B) a low boiler fraction is discharged via the top (11) of the column; C) TDA is discharged via a lateral discharge point (14) located in the withdrawal section (7) of the partition column (1); D) a high boiler fraction is discharged via the bottom (12) of the column.

公开(公告)号：EP1735084A1

公开(公告)日：2006-12-27

申请号：EP05716251.3

申请日：2005-03-21

Applicant: BASF Aktiengesellschaft

Inventor： SOHN, Martin ,  STROEFER, Eckhard ,  SCHUBERT, Olga ,  GRASSLER, Thomas ,  FIENE, Martin ,  SESING, Martin ,  SEIDEMANN, Lothar ,  WALSDORFF, Christian

IPC: B01J8/18 ,  C01B7/04 ,  B01J8/24

CPC classification number: B01J8/1836 ,  B01J8/1872 ,  B01J2208/00132 ,  B01J2208/00212 ,  C01B7/04

Abstract: The invention relates to a method for carrying out exothermic chemical equilibrium reactions in a fluidized bed reactor, wherein the temperature is distributed across the fluidized bed of the fluidized reactor and the temperature difference between the lowest and the highest temperature is at least 10 K. The invention also relates to a fluidized bed reactor for carrying out chemical reactions in a fluidized bed (5), which is characterized in that at least one heat exchanger (12, 28) is arranged in the fluidized bed (5) for controlling temperature distribution.