公开(公告)号：EP1575904B2

公开(公告)日：2013-09-04

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

公开(公告)号：EP1546091B1

公开(公告)日：2010-12-01

申请号：EP03769284.5

申请日：2003-09-18

Applicant: BASF SE

Inventor： STRÖFER, Eckhard ,  SCHOLL, Stephan ,  SOHN, Martin ,  WÖLFERT, Andreas ,  PALLASCH, Häns-Jürgen ,  BREDEHÖFT, Jan, Peter

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

CPC classification number: C07C263/10 ,  B01D1/065 ,  C07C263/20 ,  C07C265/14

Abstract: The invention relates to a method for producing isocyanates by reacting primary amines with phosgene in a reactor and a production plant for carrying out said method. The discharged reaction material is provided in the form of a suspension containing the isocyanate that is to be produced as a liquid and carbamyl chlorides as a solid substance, and said suspension is reprocessed in a layer-type evaporator.

公开(公告)号：EP1444189B1

公开(公告)日：2008-05-14

申请号：EP02787574.9

申请日：2002-11-05

Applicant: BASF SE

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：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.

公开(公告)号：EP1575905B1

公开(公告)日：2009-09-09

申请号：EP03789263.5

申请日：2003-12-13

Applicant: BASF SE

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：EP1919611A1

公开(公告)日：2008-05-14

申请号：EP06792946.3

申请日：2006-08-22

Applicant: BASF SE

Inventor： SCHUBERT, Olga ,  SESING, Martin ,  SEIDEMANN, Lothar ,  KARCHES, Martin ,  GRASSLER, Thomas ,  SOHN, Martin

IPC: B01J21/04 ,  B01J23/46 ,  C01B7/04

CPC classification number: C01B7/04 ,  B01J21/04 ,  B01J23/462 ,  B01J23/52 ,  B01J23/72 ,  B01J23/8926

Abstract: Disclosed is a catalyst for gas phase reactions, which is provided with great mechanical stability and comprises one or several active metals on a carrier containing alumina as a carrier material. Said catalyst is characterized in that the alumina moiety of the carrier is composed substantially of alpha-alumina. Ruthenium, copper, and/or gold is/are the preferred active metal/s used. Particularly preferred inventive catalysts contain a) 0.001 to 10 percent by weight of ruthenium, copper, and/or gold, b) 0 to 5 percent by weight of one or several alkaline earth metals, c) 0 to 5 percent by weight of one or several alkali metals, d) 0 to 10 percent by weight of one or several rare earth metals, e) 0 to 10 percent by weight of one or several other metals selected among the group comprising palladium, platinum, osmium, iridium, silver, and rhenium, the percentages being in relation to the total weight of the catalyst, on the carrier made of alpha Al2O3. The disclosed catalysts are preferably used for the oxidation of hydrogen chloride (Deacon reaction).

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：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：EP1601456B1

公开(公告)日：2009-09-30

申请号：EP04713043.0

申请日：2004-02-20

Applicant: BASF SE

Inventor： BRODHAGEN, Andreas ,  SOHN, Martin ,  NEVEJANS, Filip ,  STROEFER, Eckhard ,  WÖLFERT, Andreas ,  OEHLENSCHLÄGER, Steffen

IPC: B01J19/24

CPC classification number: B01J19/242 ,  B01J19/243 ,  B01J2219/00166 ,  B01J2219/182 ,  B01J2219/185 ,  B01J2219/187 ,  C07C263/10 ,  C07C265/14

Abstract: The invention relates to a method for producing polyisocyanates by reacting primary amines with phosgene, comprising the following steps: a) mixing the amine with the phosgene; b) reacting the amine with the phosgene in a reactor, inside of which the mixture stays for a period of time and, optionally; c) transferring the discharge from the reactor from step b) into a distillation column. The invention is characterized in that the reactor cited in step b) is provided in the form of a tubular reactor.