公开(公告)号：AT205826T

公开(公告)日：2001-10-15

申请号：AT96937292

申请日：1996-10-30

Applicant: BASF AG

Inventor： LAQUA GERHARD ,  SCHONER ULRICH ,  OTTERBACH ANDREAS ,  SCHWARZ HANS VOLKMAR

IPC: B01J31/04 ,  B01J31/12 ,  B01J31/20 ,  C07B61/00 ,  C07C263/04 ,  C07C265/14 ,  C07C269/04 ,  C07C271/08 ,  C07C271/20

Abstract: Organic diurethanes and/or polyurethanes are prepared by reacting organic diamines and/or polyamines (a) with urea and/or alkyl cabamates (b) and alcohols (c) in the presence of soluble zirconium compounds, preferably zirconium alkoxides, zirconium acetate or zirconium acetylacetonate, as catalyst (d). They can be used for preparing diisocyanates and/or polyisocyanates by thermal dissociation.

公开(公告)号：CA2235328A1

公开(公告)日：1997-05-15

申请号：CA2235328

申请日：1996-10-30

Applicant: BASF AG

Inventor： SCHWARZ HANS VOLKMAR ,  OTTERBACH ANDREAS ,  SCHONER ULRICH ,  LAQUA GERHARD

IPC: B01J31/04 ,  B01J31/12 ,  B01J31/20 ,  C07B61/00 ,  C07C263/04 ,  C07C265/14 ,  C07C269/04 ,  C07C271/08 ,  C07C271/20

Abstract: The invention concerns a method of producing organic di- and/or polyurethanes by reacting organic di- and/or polyamines (a) with urea and/or carbamic acid alkyl esters (b) and alcohols (c) in the presence of soluble zirconium compounds, preferably zirconium alcoholates, zirconium acetate or zirconium actylacetonate, as a catalyst (d). The invention also concerns the use of such compounds in the production of di- and/or polyisocyanates by thermal decomposition.

公开(公告)号：CA2139535A1

公开(公告)日：1995-08-18

申请号：CA2139535

申请日：1995-01-04

Applicant: WOLFF STEFAN ,  BRANDT PETER ,  BRUCHMANN BERND ,  LAQUA GERHARD ,  SIEBENHAAR URSULA ,  TESCH HELMUT ,  RENZ HANS ,  WITZEL TOM ,  MERGER FRANZ ,  BASF AG

Inventor： WOLFF STEFAN ,  BRANDT PETER ,  BRUCHMANN BERND ,  LAQUA GERHARD ,  SIEBENHAAR URSULA ,  TESCH HELMUT ,  RENZ HANS ,  WITZEL TOM ,  MERGER FRANZ

IPC: C07C265/14 ,  C07C271/66 ,  C07C275/60 ,  C07C275/62 ,  C07D229/00 ,  C07D251/34 ,  C08G18/78 ,  C08G18/79 ,  C09K3/10 ,  C07C267/00 ,  C07C271/08 ,  C07C275/14 ,  C07C275/58

Abstract: the polyisocyanate mixtures modified by urethane, allophanate, urea, biuret, carbodiimide, uretdione and/or isocyanurate groups and having an isocyanate content of from 1 to 34% by weight whith are obtainable from diisocyanates having isocyanate groups of differing reactivity selected from the group consisting of 2-butyl-2-ethylpentane-1,5-diisocyanate, 2-(3-isocyanatopropyl)cyclohexyl-1-isocyanate and/or 1-(isocya-natomethyl)-1-(3-isocyanatopropyl)cyclohexane.

公开(公告)号：DE102004025445A1

公开(公告)日：2005-02-10

申请号：DE102004025445

申请日：2004-05-19

Applicant: BASF AG

Inventor： DIETERLE MARTIN ,  LAQUA GERHARD ,  MUELLER-ENGEL KLAUS JOACHIM

IPC: B01J8/02 ,  C07B41/00 ,  C07C45/34 ,  C07C45/35 ,  C07C51/16 ,  C07C51/235 ,  C07C51/25 ,  C07C51/255 ,  C07C27/14 ,  C07C57/05 ,  C07B33/00

Abstract: Gas-phase partial oxidation of an organic compound by passing a mixture of the compound, oxygen and an inert diluent gas through a bed of catalyst at elevated temperature comprises counteracting deactivation of the catalyst by increasing the gas pressure without altering the gas hourly space velocity. An independent claim is also included for apparatus comprising an oxidation reactor and a pressure-regulating device downstream of the reactor's outlet.

公开(公告)号：DE10257577A1

公开(公告)日：2004-07-01

申请号：DE10257577

申请日：2002-12-10

Applicant: BASF AG

Inventor： HELFERT HERBERT ,  LAQUA GERHARD ,  BUCKEL GERHARD ,  EIDEN ULRICH

IPC: B01D53/14 ,  C07C7/11

Abstract: Processing of decomposable gases by scrubbing with a liquid in a packed column comprises supplying the gas under pressure to the lower part of the column and supplying the liquid at a lower temperature than the gas to the upper part of the column, the liquid being cooled during recycle.

公开(公告)号：DE59607733D1

公开(公告)日：2001-10-25

申请号：DE59607733

申请日：1996-10-30

Applicant: BASF AG

Inventor： LAQUA GERHARD ,  SCHONER ULRICH ,  OTTERBACH ANDREAS ,  SCHWARZ VOLKMAR

IPC: B01J31/04 ,  B01J31/12 ,  B01J31/20 ,  C07B61/00 ,  C07C263/04 ,  C07C265/14 ,  C07C269/04 ,  C07C271/08 ,  C07C271/20

Abstract: Organic diurethanes and/or polyurethanes are prepared by reacting organic diamines and/or polyamines (a) with urea and/or alkyl cabamates (b) and alcohols (c) in the presence of soluble zirconium compounds, preferably zirconium alkoxides, zirconium acetate or zirconium acetylacetonate, as catalyst (d). They can be used for preparing diisocyanates and/or polyisocyanates by thermal dissociation.

公开(公告)号：FR2756281B1

公开(公告)日：2000-03-03

申请号：FR9714616

申请日：1997-11-21

Applicant: BASF AG

Inventor： LAQUA GERHARD ,  DERNBACH MATTHIAS

IPC: C07C273/02 ,  C07C273/18 ,  C07C275/28 ,  C07C275/58 ,  C07C275/14

公开(公告)号：ES2288953T3

公开(公告)日：2008-02-01

申请号：ES01933954

申请日：2001-05-10

Applicant: BASF AG

Inventor： HELFERT HERBERT ,  SCHMIDT-RADDE MARTIN ,  LAQUA GERHARD ,  EIDEN ULRICH ,  SCHOLL STEPHAN ,  UBLER CHRISTOPH

IPC: C07D207/26 ,  B01D3/14 ,  B01J3/00 ,  C07D201/16 ,  C07D207/267

Abstract: Procedimiento para la elaboración de residuos de la obtención de pirrolidona, N-vinilpirrolidona o pirrolidona y N-vinilpirrolidona, teniendo los residuos la composición de un producto de cola, que se obtiene mediante reacción de gamma-butirolactona y amoniaco para dar pirrolidona, y/o mediante reacción de pirrolidona y etino para dar N-vinilpirrolidona, respectivamente tras purificación por destilación, caracterizado porque los residuos reunidos de la obtención de pirrolidona y N-vinilpirrolidona se someten a una termólisis, que se lleva a cabo en un tiempo de residencia de 1 a 10 horas, referido a los residuos empleados.

公开(公告)号：DE102006000996A1

公开(公告)日：2007-07-12

申请号：DE102006000996

申请日：2006-01-05

Applicant: BASF AG

Inventor： CREMER ULRICH ,  WEGERLE ULRIKE ,  LAQUA GERHARD ,  HAMMON ULRICH ,  MUELLER-ENGEL KLAUS JOACHIM

IPC: C07B41/08 ,  B01J8/02

Abstract: Heterogeneously catalyzed gas phase partial oxidation of organic compound with oxygen over fixed catalyst bed involves: recovering quality of the fixed catalyst bed by not replacing entire fixed catalyst bed but only its portion by a replacement fixed catalyst bed part; when increasing operating time is accompanied by increasing reduction in quality of the fixed catalyst bed, such that volume-specific activity of the replacement fixed catalyst bed part is lower than volume-specific activity of replaced fixed catalyst bed part in its freshly installed state. Method for heterogeneously catalyzed gas phase partial oxidation of at least one organic starting compound with molecular oxygen over a fixed catalyst bed freshly installed into a reaction chamber, involving conducting a reaction gas mixture comprising the at least one organic starting compound and the molecular oxygen through the fixed catalyst bed, for partial oxidation; and removing the heat of reaction by indirect heat exchange with a fluid heat carrier conducted outside the reaction chamber, involves: recovering the quality of the fixed catalyst bed by not replacing the entire fixed catalyst bed but only its portion by a replacement fixed catalyst bed part; when increasing operating time is accompanied by an increasing reduction in the quality of the fixed catalyst bed, such that the volume-specific activity of the replacement fixed catalyst bed part is lower than the volume-specific activity of the replaced fixed catalyst bed part in its freshly installed state.

公开(公告)号：FR2824064B1

公开(公告)日：2006-03-10

申请号：FR0205191

申请日：2002-04-25

Applicant: BASF AG

Inventor： LAQUA GERHARD ,  KLOTZER MATTHIAS ,  KRASE VOLKER ,  PFAB PETER ,  PFEFFINGER JOACHIM ,  SCHMIDT ANDREAS

IPC: C07C263/12 ,  C07C263/00 ,  C07C265/04 ,  C07C269/00 ,  C07C271/12