公开(公告)号：DE102005042392A1

公开(公告)日：2007-03-08

申请号：DE102005042392

申请日：2005-09-06

Applicant: BASF AG

Inventor： WOELFERT ANDREAS ,  KNOESCHE CARSTEN ,  DAIS ANDREAS ,  CHENG TSUNG-CHIEH ,  MATTKE TORSTEN ,  STROEFER ECKHARD

IPC: C07C263/10 ,  B01J12/00 ,  B01J19/24 ,  B01J19/26 ,  C07B43/10 ,  C07C265/14

Abstract: The present invention relates to a process for preparing isocyanates and an apparatus suitable for this purpose, and also its use. In the process, an amine and phosgene, both in the gas phase, react in the presence of an inert medium. A number, n, of amine streams are reacted with a number, n +1, of phosgene streams in a reactor. The number n is a positive integer of at least 1. All amine and phosgene streams are introduced into the reactor through annular gaps for mixing.

公开(公告)号：DE50306115D1

公开(公告)日：2007-02-08

申请号：DE50306115

申请日：2003-05-19

Applicant: BASF AG

Inventor： WOELFERT ANDREAS ,  MUELLER CHRISTIAN ,  STROEFER ECKHARD ,  BRODHAGEN ANDREAS

IPC: C07C263/10 ,  B01J19/24 ,  C07C265/14

Abstract: The present invention relates to a continuous process for preparing isocyanates by reacting primary amines with phosgene, wherein the reaction is carried out in a cascade of at least two tube reactors and the gas phase formed in the reaction is separated off in a phase separator after each reactor and only the liquid phase is passed to the next reactor or to product purification and the reaction volume of the first tube reactor is only a fraction of the total reaction volume.

公开(公告)号：DE102004060120A1

公开(公告)日：2006-06-14

申请号：DE102004060120

申请日：2004-12-13

Applicant: BASF AG

Inventor： JOKISCH CARL ,  BRUCHMANN BERND ,  WOELFERT ANDREAS ,  BEY OLIVER ,  BAYER ALEXANDER ,  BINDER HORST

IPC: C07D251/30

Abstract: Procedure for partial trimerization of (cyclo) aliphatic isocyanate in the present of at least a catalyst, where the procedure is carried out at least partially in a tube reactor showing at least partially a Reynolds-number of at least 2300 in a power induction of at least 0.2 W/l.

公开(公告)号：DE102004053661A1

公开(公告)日：2006-05-04

申请号：DE102004053661

申请日：2004-11-03

Applicant: BASF AG

Inventor： SESING MARTIN ,  VOS HARTWIG ,  STROEFER ECKHARD ,  ROHDE THORSTEN ,  WOELFERT ANDREAS

IPC: C07C263/10 ,  C07C263/20

Abstract: The invention provides a process for preparing isocyanates by reacting the corresponding amines with phosgene in the presence of solvents, wherein compounds which form salt melts with hydrogen chloride are used as solvents.

公开(公告)号：DE10311865A1

公开(公告)日：2004-09-30

申请号：DE10311865

申请日：2003-03-17

Applicant: BASF AG

Inventor： STROEFER ECKHARD ,  WEBER MARKUS ,  WOELFERT ANDREAS ,  MUELLER CHRISTIAN ,  SOHN MARTIN ,  LANG NEVEN ,  KNOESCHE CARSTEN ,  KLOETZER MATTHIAS ,  HENDREICH REGINA ,  MORGENSCHWEIS KONRAD ,  FIENE MARTIN ,  THIELE KAI ,  MURRAR IMBRIDT

IPC: C01B7/04 ,  C07C263/10 ,  C07C265/14

Abstract: A method for the production of polyurethane components, especially isocyanates, involves using a system made up of components used in micro-technology.

公开(公告)号：DE10310888A1

公开(公告)日：2004-09-23

申请号：DE10310888

申请日：2003-03-11

Applicant: BASF AG

Inventor： BRODHAGEN ANDREAS ,  SOHN MARTIN ,  NEVEJANS FILIP ,  STROEFER ECKHARD ,  WOELFERT ANDREAS ,  OEHLENSCHLAEGER STEFFEN

IPC: B01J19/24 ,  C07C263/10 ,  C07C265/14

Abstract: Production of polyisocyanates comprises mixing an amine with phosgene, reacting the amine with the phosgene in a tubular reactor, and passing the reactor effluent to a distillation column. Independent claims are also included for: (1) tubular reactor consisting of one or more horizontal and/or vertical segments connected together by sections whose diameter is smaller than that of the narrowest horizontal or vertical segment; (2) use of the above reactor for carrying out gas-liquid reactions; and (3) use of the above reactor for producing isocyanates by reacting primary amines with phosgene.

公开(公告)号：DE10260094A1

公开(公告)日：2004-07-01

申请号：DE10260094

申请日：2002-12-19

Applicant: BASF AG

Inventor： WOELFERT ANDREAS ,  PALLASCH HANS-JUERGEN ,  STROEFER ECKHARD ,  BLANKERTZ HEINRICH-JOSEF

IPC: B01D3/00 ,  B01F3/08 ,  B01F5/00 ,  B01J19/24 ,  C07C263/10 ,  C07C265/14

Abstract: The invention relates to a method for producing (cyclo)aliphatic isocyanates by reacting, in an organic solvent, primary (cyclo)aliphatic amines with phosgene in the liquid phase, and to devices for carrying out this method.

公开(公告)号：DE50101667D1

公开(公告)日：2004-04-15

申请号：DE50101667

申请日：2001-06-29

Applicant: BASF AG

Inventor： WOELFERT ANDREAS ,  PENZEL ULRICH

IPC: B01F3/08 ,  B01F5/00 ,  B01F5/02 ,  B01F5/04 ,  B01F13/10 ,  B01F15/02 ,  B01J19/00 ,  B29B7/32 ,  C07B43/10 ,  C07B61/00 ,  C07C263/10 ,  C07C265/14

Abstract: In a process for mixing reactant streams ( 1, 2; 5 ) to produce a product stream ( 10 ) using a mixing configuration ( 15, 16 ) having a number of reactant feed points, an excess component stream of one reactant is divided into two reactant substreams ( 1, 2 ) and fed into the suction region ( 3, 4 ) of a mixing space ( 12 ) at right angles to a deficient component ( 5 ) entering the mixing space ( 12 ).

公开(公告)号：DE10158160A1

公开(公告)日：2003-06-12

申请号：DE10158160

申请日：2001-11-28

Applicant: BASF AG

Inventor： WOELFERT ANDREAS ,  MUELLER CHRISTIAN ,  STROEFER ECKHARD ,  PFEFFINGER JOACHIM ,  WEBER MARKUS

IPC: C07C263/10 ,  B01J12/00 ,  C07C265/14

Abstract: The invention relates to a method for producing isocyanates by reacting primary amines with phosgene in the gaseous phase. Said method is characterized in that the reaction of amine and phosgene occurs in a reaction channel, the internal dimensions of which have a width/height ratio of at least 2/1.

公开(公告)号：CA2675506A1

公开(公告)日：2008-07-24

申请号：CA2675506

申请日：2008-01-14

Applicant: BASF AG

Inventor： WOELFERT ANDREAS ,  DRIESS HEINZ ,  JACHOW HARALD

IPC: C01B17/16 ,  B01J8/00 ,  B01J8/06 ,  B01J10/00 ,  B01J19/00 ,  B01J19/24

Abstract: The invention relates to a reactor (1) and a method for continuously prod ucing H2S by reacting a feedstock mixture essentially containing gaseous sul fur and hydrogen on a catalyst. The reactor (1) comprises a sulfur melt (9), at least in a bottom subarea (8) of the reactor (1) into which gaseous hydr ogen is introduced. The catalyst is arranged in at least one U-shaped tube ( 21) that is in partial contact with the sulfur melt (9). The at least one U- shaped tube (21) has at least one inlet (23) on a leg (26) above the sulfur melt (9), the feedstock mixture being able to penetrate from a feedstock zon e (10) of the reactor (1) into the U-shaped tube (21) through said inlet (23 ). The at least one U-shaped tube (21) also has an internal flow path, along which the feedstock mixture can be reacted in a reaction zone containing th e catalyst (22), and at least one outlet (24) in another leg (27), a product being able to be discharged into a product zone (7) through said outlet (24 ).