公开(公告)号：MX9805834A

公开(公告)日：1998-10-31

申请号：MX9805834

申请日：1998-07-20

Applicant: BASF AG

Inventor： MOHR JURGEN ,  VANSANT FRANS

IPC: C08J5/18 ,  C07C29/80 ,  C07C29/94 ,  C07C31/20 ,  C08G63/12 ,  C08G63/16 ,  C08G63/672 ,  D01F6/62

Abstract: La presente invencion se refiere a un proceso para obtener glicoles de contenido bajo de aldehídos, en el cual la planta utilizada para obtener el(los) glicol(es) se trata en su superficie, toda o en partes, con por lo menos un compuesto fosforoso reductivo.

公开(公告)号：CA2345053C

公开(公告)日：2008-07-15

申请号：CA2345053

申请日：1999-09-21

Applicant: BASF AG

Inventor： THEIS GERHARD ,  VANSANT FRANS ,  HASSE HANS ,  ADRIAN TILL ,  BESSLING BERND

IPC: C07C29/80 ,  C07C29/10 ,  C07C31/20

Abstract: The invention relates to a method for obtaining highly pure monoethylene glycol from the product of hydrolysis of ethylene oxide by distillation, by means of dehydration under pressure, preferably in a cascade, vacuum dehydration and subsequent pure distillation. During the vacuum dehydration, an aqueous stream containing monoethylene glycol in a concentration of less than 1 wt. %, preferably less than 0.1 wt. %, medium boilers and light boilers is drawn off and then sluiced out, optionally after reprocessing.

公开(公告)号：CA2244271C

公开(公告)日：2005-11-29

申请号：CA2244271

申请日：1997-01-20

Applicant: BASF AG

Inventor： STAATZ HARTMUT ,  SCHOLL STEPHAN ,  POLT AXEL WERNER ,  MOHR JURGEN ,  VANSANT FRANS ,  KRUGER SIEGFRIED

IPC: B01D1/06 ,  C07C29/80

Abstract: The invention concerns a method of vaporizing a fluid containing vaporizable oxidation-sensitive compounds in a vaporizer in which, for vaporization purposes, the fluid is brought into contact with a heated solid surface, direct contact between the resultant vapour phase and the heated solid surface axing largely prevented. The invention further concerns a vaporizer comprising a heatable solid surface (16), a device (2, 3) for heating the solid surface, and a device (10) for feeding a fluid containing vaporizable compounds to the healable solid surface. The fluid-feeding device is designe d and disposed (12, 14, 18) in the vaporizer such that direct contact between the resultant vapour phase and the healable solid surface is largely prevented.

公开(公告)号：AR020655A1

公开(公告)日：2002-05-22

申请号：ARP990104764

申请日：1999-09-22

Applicant: BASF AG

Inventor： BESSLING BERND ,  HASSE HANS ,  THEIS GERHARD ,  ADRIAN TILL ,  VANSANT FRANS

IPC: C07C29/10 ,  C07C29/80 ,  C07C31/20

公开(公告)号：GR3036046T3

公开(公告)日：2001-09-28

申请号：GR20010400841

申请日：2001-06-14

Applicant: BASF AG

Inventor： MOHR JUERGEN ,  VANSANT FRANS

IPC: C08J5/18 ,  C07C29/80 ,  C07C29/94 ,  C07C31/20 ,  C08G63/12 ,  C08G63/16 ,  C08G63/672 ,  D01F6/62

Abstract: PCT No. PCT/EP97/00271 Sec. 371 Date Jul. 16, 1998 Sec. 102(e) Date Jul. 16, 1998 PCT Filed Jan. 21, 1997 PCT Pub. No. WO97/27164 PCT Pub. Date Jul. 31, 1997A process for obtaining glycols of low aldehyde content in which the plant used to obtain the glycol(s) is surface-treated, in whole or in part, with at least one reductive phosphorus compound.

公开(公告)号：DE19855910A1

公开(公告)日：2000-06-08

申请号：DE19855910

申请日：1998-12-03

Applicant: BASF AG

Inventor： VANSANT FRANS ,  DE HERT JOZEF ,  KOEFFER DIETER ,  THEIS GERHARD ,  TERJUNG WINFRIED

IPC: B01D1/22 ,  B08B3/08 ,  B08B9/08 ,  B01D1/00 ,  B01D3/00

Abstract: The rinsing apparatus for removing residue from the sump run-off of an evaporator comprises (a) a run-off container (7), (b) a collector container (8), (c) a run-off valve (10), (d) a rinsing water valve (11), (e) run-off container valve (12), (f) rinsing run-off valve (13), (g) vent valve (14), (h) a delivery pipe (17) from the sump to the run-off valve (10), (i) a inlet pipe (3) for the rinsing agent, (j) a run-off pipe device (6,16) and a connector to the devices (a) to (j). An Independent claim is included for the use of a rinsing apparatus.

公开(公告)号：AU6466399A

公开(公告)日：2000-04-10

申请号：AU6466399

申请日：1999-09-21

Applicant: BASF AG

Inventor： ADRIAN TILL ,  BESSLING BERND ,  HASSE HANS ,  VANSANT FRANS ,  THEIS GERHARD

IPC: C07C29/10 ,  C07C29/76 ,  C07C29/80 ,  C07C31/20

Abstract: A process for the distillative recovery of high purity monoethylene glycol from the hydrolysis product of ethylene oxide by pressure dewatering, vacuum dewatering and subsequent purifying distillation, which includes the pressure dewatering columns or at least the first pressure dewatering column of the battery (2, 3, 4) having a stripping section with at least one separating stage, preferably with from 2 to 10 separating stages, particularly preferably with from 3 to 6 stages, and a portion of the overhead stream of the pressure dewatering column(s) (2, 3, 4) having a stripping section being removed from the system.

公开(公告)号：DE19843697A1

公开(公告)日：2000-03-30

申请号：DE19843697

申请日：1998-09-23

Applicant: BASF AG

Inventor： ADRIAN TILL ,  BESLING BERND ,  HASSE HANS ,  VANSANT FRANS ,  THEIS GERHARD

IPC: C07C29/10 ,  C07C29/80 ,  C07C31/20

Abstract: The invention relates to a method for obtaining highly pure monoethylene glycol from the product of hydrolysis of ethylene oxide by distillation, by means of dehydration under pressure, preferably in a cascade, vacuum dehydration and subsequent pure distillation. During the vacuum dehydration, an aqueous stream containing monoethylene glycol in a concentration of less than 1 wt. %, preferably less than 0.1 wt. %, medium boilers and light boilers is drawn off and then sluiced out, optionally after reprocessing.

公开(公告)号：DE19843652A1

公开(公告)日：2000-03-30

申请号：DE19843652

申请日：1998-09-23

Applicant: BASF AG

Inventor： THEIS GERHARD ,  ADRIAN TILL ,  BESLING BERND ,  HASSE HANS ,  VANSANT FRANS

IPC: C07C29/10 ,  C07C29/76 ,  C07C29/80 ,  C07C31/20

Abstract: The invention relates to a method for obtaining highly pure monoethylene glycol from the product of hydrolysis of ethylene oxide by distillation, by means of dehydration under pressure, preferably in a cascade, vacuum dehydration and subsequent pure distillation. According to the inventive method, the pressure dehydration column or at least the first pressure dehydration column of the cascade (2, 3, 4) has a stripping section with at least one separation stage, preferably 2-10 separation stages, especially 3-6 stages, and in that part of the top flow of the dehydration column(s) (2, 3, 4) is sluiced out with the stripping section.

公开(公告)号：CA2343767A1

公开(公告)日：2000-03-30

申请号：CA2343767

申请日：1999-09-20

Applicant: BASF AG

Inventor： THEIS GERHARD ,  VANSANT FRANS

IPC: F01K27/02 ,  C07C29/10 ,  C07C29/80 ,  C07C31/20 ,  C07D301/08 ,  C07D301/10 ,  C07D301/32 ,  C07D303/04 ,  F22B1/18

Abstract: The invention relates to a method for optimizing the specific energy consumption of a method for producing ethylene oxide by direct oxidization o f ethylene with air or oxygen, using water as the heat transfer medium for removing the heat of the reaction so that water vapor is formed. According t o the invention, the water vapor is first expanded in one or several back pressure steam turbine(s) T for operating machines M before being supplied f or use by one or several other consumers, such as bottom evaporators or steam injectors.