公开(公告)号：DE10308488A1

公开(公告)日：2004-09-09

申请号：DE10308488

申请日：2003-02-26

Applicant: BASF AG

Inventor： FISCHER ROLF-HARTMUTH ,  GALL MARTIN ,  HUBER-DIRR SYLVIA ,  LIANG SHELUE ,  NOEBEL THOMAS ,  RUST HARALD ,  STEIN FRANK

IPC: B01J21/04 ,  B01J23/04 ,  C07C45/48 ,  C07C45/82 ,  C07C49/395 ,  C07C45/54 ,  B01D3/36 ,  C07C49/297

公开(公告)号：MY117784A

公开(公告)日：2004-08-30

申请号：MYPI9902135

申请日：1999-05-28

Applicant: BASF AG

Inventor： STEIN FRANK ,  KRUG THOMAS ,  GALL MARTIN ,  IFFLAND GABRIELE

IPC: C07C27/00 ,  C07C29/149 ,  C07C31/20 ,  C07C51/47 ,  C07C67/03 ,  C07C67/56 ,  C07C69/44 ,  C07C69/675

Abstract: A PROCESS FOR PREPARING 1,6-HEXANEDIOL FROM A CARBOXYLIC ACID MIXTURE OBTAINED AS BY-PRODUCT IN THE OXIDATION OF CYCLOHEXANE TO CYCLOHEXANONE/CYCLOHEXANOL WITH OXYGEN OR OXYGEN-COMPRISING GASES AND BY AQUEOUS EXTRACTION OF THE REACTION MIXTURE AND COMPRISING ADIPIC ACID, 6-HYDROXYCAPROIC ACID AND SMALL AMOUNTS OF 1,4-CYCLOHEXANEDIOLS BY ESTERIFICATION OF THE ACIDS AND HYDROGENATION, BYA) REACTING THE MONO- AND DICARBOXYLIC ACIDS IN THE AQUEOUS DICARBOXYLIC ACID MIXTURE WITH A LOW MOLECULAR WEIGHT ALCOHOL TO FORM THE CORRESPONDING CARBOXYLIC ESTERS,B) CONDUCTING A FIRST DISTILLATION TO REMOVE EXCESS ALCOHOL AND LOW BOILERS FROM THE ESTERIFICATION MIXTURE OBTAINED, C) CONDUCTING A SECOND DISTILLATION TO SEPARATE THE BOTTOM PRODUCT INTO AN ESTER FRACTION WHICH IS ESSENTIALLY FREE FROM 1,4-CYCLOHEXANEDIOLS AND A FRACTION WHICH INCLUDES AT LEAST THE LARGER PROPORTION OF THE 1,4-CYCLOHEXANEDIOLS,D) SUBJECTING THE ESTER FRACTION ESSENTIALLY FREE FROM 1,4-CYCLOHEXANEDIOLS TO A CATALYTIC HYDROGENATION, ANDE) SUBJECTING THE HYDROGENATION EFFLUENT TO A DISTILLATION TO RECOVER 1,6-HEXANEDIOL IN A CONVENTIONAL MANNER,COMPRISES USING AN AQUEOUS DICARBOXYLIC ACID MIXTURE COMPRISING MORE THAN 20 PPM OF COBALT AND MORE THAN 40 PPM OF PHOSPHORUS IN THE FORM OF PHOSPHATE AND PASSING THIS AQUEOUS DICARBOXYLIC ACID MIXTURE THROUGH A CATION EXCHANGER AND AFTER THE ESTERIFICATION OF STEP (A) THROUGH AN ANION EXCHANGER.

公开(公告)号：AU2002242651A1

公开(公告)日：2002-07-24

申请号：AU2002242651

申请日：2002-01-08

Applicant: BASF AG ,  GALL MARTIN ,  KAIBEL GERD ,  KRUG THOMAS ,  RUST HARALD ,  STEIN FRANK

Inventor： GALL MARTIN ,  KAIBEL GERD ,  KRUG THOMAS ,  RUST HARALD ,  STEIN FRANK

IPC: C07D309/30 ,  B01D3/14 ,  C07C29/80 ,  C07C31/20 ,  C07D315/00

Abstract: A process for working up by distillation the crude products obtained in the process according to DE-A 196 07 954 and containing 1,6-hexanediol (HDO), 1,5-pentanediol (PDO) or caprolactone (CLO) in order to obtain the corresponding pure products, the working-up by distillation being carried out in each case in a dividing wall column (TK) in which a dividing wall (T) is arranged in the longitudinal direction of the column with formation of an upper common column region ( 1 ), a lower common column region ( 6 ), a feed section ( 2, 4 ) having a rectification section ( 2 ) and stripping section ( 4 ), and a take-off section ( 3, 5 ) having a stripping section ( 3 ) and rectification section ( 5 ), with feeding of the respective crude product HDO, PLO or CLO in the middle region of the feed section ( 2, 4 ) and removal of the high boiler fraction (C) from the bottom of the column, of the low boiler fraction (A) via the top of the column and of the medium boiler fraction (B) from the middle region of the take-off section ( 3, 5 ), or in thermally coupled columns.

公开(公告)号：MY136889A

公开(公告)日：2008-11-28

申请号：MYPI20015864

申请日：2001-12-24

Applicant: BASF AG

Inventor： GALL MARTIN ,  KAIBEL GERD DR ,  KRUG THOMAS ,  RUST HARALD ,  STEIN FRANK DR

IPC: C07D309/30 ,  B01D3/14 ,  C07C29/80 ,  C07C31/20 ,  C07D315/00

Abstract: A PROCESS FOR WORKING UP BY DISTILLATION THE CRUDE PRODUCTS OBTAINED IN THE PROCESS ACCORDING TO DE-A 196 07 954 AND CONTAINING 1,6-HEXANIDIOL (HDO),1,5-PENTANIDIOL (PDO) OR CAPROLACTONE (CLO) IN ORDER IN OBTAIN THE CORESPONDING PURE PRODUCTS,THE WORKING-UP BY DISTILLATION BEONG CARIED OUT IN EACH CASE IN A DIVIDING WALL COLUMN (TK) IN WHICH A DIVIDING WALL (T) IS ARRANGED IN THE LOGITUDINAL DIRECTION OF DIRECTION OF THE COLUMN WITH FORMATION OF AN UPPER COMMON COLUMN REGION (1),A LOWER COMMON COLUMN REGION (6),A FEED SECTION (2,4) HAVING A RECTIFICATION SECTION (2) AND STRIPPING SECTION (4) AND A TAKE-OFF SECTION (3,5) HAVING A STRIPPING SECTION (3) AND RETIFICATION SECTION (5),WITH FEEDING OF THE RESPECTIVE CRUDE PRODUCT HDO,PLO OR CLO IN THE MIDDLE REGION OF THE FEED SECTION (2,4) AND REMOVAL OF THE HIGH BOILER FRACTION (C) FROM THE BOTTOM OF THE COLUMN,OF THE LOW BOILER FRACTION (A) VIA THE TOP OF COLUMN AND OF THE MEDIUM BOILRE FRACTION (B) FROM THR MIDDLE REGION OF THE TAKE-OFF SECTION (3,5),OR IN THERMALLY COUPLED COLUMNS.

公开(公告)号：AT268310T

公开(公告)日：2004-06-15

申请号：AT99915573

申请日：1999-03-11

Applicant: BASF AG

Inventor： TEICH FRIEDHELM ,  SCHELLING HEINER ,  KOESTER HERBERT ,  KRATZER HORST ,  REICHERT WOLFGANG ,  GALL MARTIN ,  ZIEGLER BERND

IPC: F26B21/10 ,  B01J3/00 ,  C01B33/00 ,  C01B33/12 ,  F26B7/00 ,  F26B21/14

Abstract: In a process for drying microporous, fluid-containing particles, the heat required for increasing the temperature is supplied by convection by reducing the interfacial tension of the fluid, preferably to 0 to 1/10, in particular to 0 to 1/20, of the interfacial tension of the fluid at room temperature, by appropriately increasing the temperature at from close to the critical pressure to supercritical pressure of the fluid. Furthermore, microporous, three-dimensionally networked particles are prepared by a process in which the drying process is used. In addition, an apparatus is used for carrying out the drying process, the apparatus comprising a pressure container having an inner container and pressure-withstanding outer container and suitable measuring and control apparatuses and pump apparatuses and heat exchangers, the inner container being provided for holding the particles to be dried and a gap being provided between the inner container and the outer container.

公开(公告)号：DE19810565A1

公开(公告)日：1999-09-16

申请号：DE19810565

申请日：1998-03-11

Applicant: BASF AG

Inventor： TEICH FRIEDHELM ,  SCHELLING HEINER ,  KOESTER HERBERT ,  KRATZER HORST ,  REICHERT WOLFGANG ,  GALL MARTIN ,  ZIEGLER BERND

IPC: B01D12/00 ,  B01J13/00 ,  C01B33/158 ,  F26B7/00 ,  F26B17/14 ,  F26B21/14 ,  F26B3/16 ,  F26B3/08 ,  B01J13/02

Abstract: Process for drying microporous particles containing fluid involves passing a traveling bed of the particles in countercurrent to a drying fluid, which has a lower interfacial tension under near to supercritical pressure than at room temperature; preferably in the region of 0 to 1/10, especially 0 to 1/20 that at room temperature. An Independent claim is also included for the production of microporous, 3-dimensionally crosslinked particles.

公开(公告)号：DE19810564A1

公开(公告)日：1999-09-16

申请号：DE19810564

申请日：1998-03-11

Applicant: BASF AG

Inventor： TEICH FRIEDHELM ,  SCHELLING HEINER ,  KOESTER HERBERT ,  KRATZER HORST ,  REICHERT WOLFGANG ,  GALL MARTIN ,  ZIEGLER BERND

IPC: F26B21/10 ,  B01J3/00 ,  C01B33/00 ,  C01B33/12 ,  F26B7/00 ,  F26B21/14 ,  F26B3/08 ,  B01J13/02 ,  C01B33/158

Abstract: In a process for drying microporous particles the heat necessary for raising the temperature is added convectively. Process for drying microporous particles containing fluid comprises reducing the boundary voltage of the fluid preferably to 0-1/10, especially 0-1/20 of the surface voltage of the fluid at room temperature until the temperature is raised corresponding to the sub-critical or close to critical pressure of the fluid. The heat necessary for raising the temperature is added convectively. Independent claims are also included for: (A) a process for producing microporous crosslinked particles comprising: (a) forming particles containing microporous pore fluid; (b) optionally washing and/or desalting the particles using solvent and/or water; (c) optionally partially or completely exchanging the pore fluid, solvent or water in the particles forming particles containing microporous fluid; (d) drying the particles and (e) optionally removing sorbed gases and/or materials of the dried particles; (B) an apparatus for carrying out the drying process comprising a pressure vessel with an inner vessel (1) and an outer vessel (2) as well as measuring and regulating devices and pumps and heat exchangers.

公开(公告)号：DE502004002451D1

公开(公告)日：2007-02-08

申请号：DE502004002451

申请日：2004-02-26

Applicant: BASF AG

Inventor： FISCHER ROLF-HARTMUTH ,  GALL MARTIN ,  HUBER-DIRR SYLVIA ,  LIANG SHELUE ,  NOEBEL THOMAS ,  RUST HARALD ,  STEIN FRANK

IPC: C07C45/78 ,  B01J21/04 ,  B01J23/04 ,  C07C45/48 ,  C07C45/82 ,  C07C49/395

公开(公告)号：DE59909648D1

公开(公告)日：2004-07-08

申请号：DE59909648

申请日：1999-03-11

Applicant: BASF AG

Inventor： TEICH FRIEDHELM ,  SCHELLING HEINER ,  KOESTER HERBERT ,  KRATZER HORST ,  REICHERT WOLFGANG ,  GALL MARTIN ,  ZIEGLER BERND

IPC: F26B21/10 ,  B01J3/00 ,  C01B33/00 ,  C01B33/12 ,  F26B7/00 ,  F26B21/14

Abstract: In a process for drying microporous, fluid-containing particles, the heat required for increasing the temperature is supplied by convection by reducing the interfacial tension of the fluid, preferably to 0 to 1/10, in particular to 0 to 1/20, of the interfacial tension of the fluid at room temperature, by appropriately increasing the temperature at from close to the critical pressure to supercritical pressure of the fluid. Furthermore, microporous, three-dimensionally networked particles are prepared by a process in which the drying process is used. In addition, an apparatus is used for carrying out the drying process, the apparatus comprising a pressure container having an inner container and pressure-withstanding outer container and suitable measuring and control apparatuses and pump apparatuses and heat exchangers, the inner container being provided for holding the particles to be dried and a gap being provided between the inner container and the outer container.

公开(公告)号：ES2201690T3

公开(公告)日：2004-03-16

申请号：ES99913251

申请日：1999-03-11

Applicant: BASF AG

Inventor： TEICH FRIEDHELM ,  SCHELLING HEINER ,  KOSTER HERBERT ,  KRATZER HORST ,  REICHERT WOLFGANG ,  GALL MARTIN

IPC: B01D12/00 ,  B01J13/00 ,  C01B33/158 ,  F26B7/00 ,  F26B17/14 ,  F26B21/14

Abstract: In a process for drying microporous, fluid-containing particles, the fluid-containing particles to be dried are fed as a moving bed countercurrently to a drying fluid, the interfacial tension of the fluid being reduced in comparison with the interfacial tension of the fluid at room temperature, at near-critical to supercritical pressure of the fluid, preferably to a value in the range from 0 to 1/10, in particular from 0 to 1/20, of the interfacial tension at room temperature. Furthermore, microporous, three-dimensionally networked particles are prepared by a process comprising preparation of microporous particles containing pore liquid, exchange of the pore liquid in the particles for a fluid and drying of the fluid-containing particles, the exchange and drying being carried out in the moving bed by the countercurrent method.