公开(公告)号：WO2010149701A1

公开(公告)日：2010-12-29

申请号：PCT/EP2010/058909

申请日：2010-06-23

Applicant: BASF SE ,  SCHELLING, Heiner ,  PENZEL, Ulrich ,  STROEFER, Eckhard ,  HABLAWETZ, Dirk ,  BECKWITH, Dave ,  THIELE, Kai ,  JACOBS, Jan D. ,  EIERMANN, Matthias ,  STORCK, Uwe ,  SPEIER, Jon S. ,  GRZANKA, Thomas ,  PORTWOOD, William

Inventor： SCHELLING, Heiner ,  PENZEL, Ulrich ,  STROEFER, Eckhard ,  HABLAWETZ, Dirk ,  BECKWITH, Dave ,  THIELE, Kai ,  JACOBS, Jan D. ,  EIERMANN, Matthias ,  STORCK, Uwe ,  SPEIER, Jon S. ,  GRZANKA, Thomas ,  PORTWOOD, William

IPC: G01N17/04 ,  C07C263/10 ,  B01J19/00

CPC classification number: B01J19/002 ,  B01J2219/00006 ,  B01J2219/00186 ,  B01J2219/00202 ,  B01J2219/00209 ,  C07C263/10 ,  C07C2601/14 ,  G01N17/00 ,  C07C265/14

Abstract: Die Erfindung betrifft ein Verfahren zur Erfassung von Wassereintritten und dadurch resultierende Korrosion in Anlagen zur Herstellung von Isocyanaten durch Umsetzung von Phosgen mit einem oder mehreren primären Aminen in einem Lösungsmittel. Die Erfindung betrifft ferner eine Vorrichtung zur Herstellung solcher Isocyanate, in deren Aufarbeitungsteil an definierten Stellen Sonden zur Überwachung von Korrosion angeordnet sind.

Abstract translation: 本发明涉及一种用于检测水入口的方法，由此导致设备，用于生产异氰酸酯的腐蚀通过光气在溶剂的一种或多种伯胺反应。 本发明还涉及一种用于制备这种异氰酸酯在限定的位置处的探针用于监测腐蚀被布置在后处理部。

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.

公开(公告)号：EP1575906B1

公开(公告)日：2010-11-17

申请号：EP03789264.3

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: C07C263/10 ,  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.