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公开(公告)号：DE19602640A1
公开(公告)日：1997-07-31
申请号：DE19602640
申请日：1996-01-25
Applicant: BASF AG
Inventor： MOHR JUERGEN DR , VANSANT FRANS , POLT AXEL WERNER DR , SCHOLL STEPHAN DR , KRUEGER SIEGFRIED , STAATZ HARTMUT DR
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 being 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 heatable solid surface. The fluid-feeding device is designed and disposed (12, 14, 18) in the vaporizer such that direct contact between the resultant vapour phase and the heatable solid surface is largely prevented.
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公开(公告)号：CA2244271A1
公开(公告)日：1997-07-31
申请号：CA2244271
申请日：1997-01-20
Applicant: BASF AG
Inventor： VANSANT FRANS , MOHR JUERGEN , SCHOLL STEPHAN , KRUEGER SIEGFRIED , STAATZ HARTMUT , POLT AXEL WERNER
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 being 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 heatable solid surface. The fluid-feeding device is designed and disposed (12, 14, 18) in the vaporizer such that direct contact between the resultant vapour phase and the heatable solid surface is largely prevented.
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公开(公告)号：CA2242591A1
公开(公告)日：1997-07-31
申请号：CA2242591
申请日：1997-01-21
Applicant: BASF AG
Inventor： VANSANT FRANS , MOHR JUERGEN
Abstract: The invention concerns a method of obtaining glycols having a low aldehyde content, the system used for obtaining the glycols being surface-treated completely or partially with at least one reducing phosphorus compound.
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公开(公告)号：CA2345140C
公开(公告)日：2009-06-16
申请号：CA2345140
申请日：1999-09-21
Applicant: BASF AG
Inventor： VANSANT FRANS , HASSE HANS , ADRIAN TILL , THEIS GERHARD , BESSLING BERND
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 lea st 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.
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公开(公告)号：SA1102B1
公开(公告)日：2006-08-12
申请号：SA99200783
申请日：1999-11-30
Applicant: BASF AG
Inventor： THEIS GERHARD , ADRIAN TILL , BEBLING BERND , HASSE HANS , VANSANT FRANS
Abstract: الملخص: عمليةللتقطيرالاستخلاصلاحاديايثيلينجيكول monoethylene glycol عاليالنقاءمنناتجالتحللالمائيلاكسيدالايثيلين ethylene oxide بواسطةنزعالماءبالضغط،ويفضلفيمجموعةمتواحدة،مننزعالماءبالتفريغوالتقطيرالمنقىالتالي،حيثيتماثناءنزعالماءبالتفريغحسبتيارمائييحتويعلىاحاديايثيلينجيكول monoethylene glycol بتركيزاقلمن 1% بالوزن،ويفضلاقلمن 0,1% بالوزن،ومركباتمتوسطةالغليانومركباتمنخفضةالغليان . ويتمازالةالتيارالمائيالذيتمسحبةاختياريابعدالمعالجةمرةأخرىمنالنظام.20 ،
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Patent Agency Ranking
公开(公告)号：ES2212671T3
公开(公告)日：2004-07-16
申请号：ES99969405
申请日：1999-09-21
Applicant: BASF AG
Inventor： THEIS GERHARD , ADRIAN TILL , BESSLING BERND , HASSE HANS , VANSANT FRANS
Abstract: A process for the distillative recovery of high purity monoethylene glycol from the hydrolysis, product of ethylene oxide by pressure dewatering, preferably in a battery, vacuum dewatering and subsequent purifying distillation, wherein during the vacuum dewatering an aqueous stream is withdrawn which contains-monoethylene glycol in a concentration below 1% by weight, preferably below 0.1% by weight, medium boilers and low boilers. The withdrawn aqueous stream is, optionally after further workup, removed from the system.
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公开(公告)号：DE59909416D1
公开(公告)日：2004-06-09
申请号：DE59909416
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: In the preparation of ethylene oxide by direct oxidation of ethylene with air or oxygen using water as heat carrier to dissipate the heat of reaction, with water vapor being formed, a process for optimizing the specific energy consumption is proposed. In this, the water vapor is first expanded in one or more backpressure steam turbine(s) T for operating working machines M, before it is fed to one or more consumers, such as bottoms reboilers or steam injectors, for further utilization.
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公开(公告)号：ES2194518T3
公开(公告)日：2003-11-16
申请号：ES99952457
申请日：1999-09-21
Applicant: BASF AG
Inventor： ADRIAN TILL , BESSLING BERND , HASSE HANS , VANSANT FRANS , THEIS GERHARD
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.
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49.发明专利
公开(公告)号：PL185951B1
公开(公告)日：2003-09-30
申请号：PL32815897
申请日：1997-01-20
Applicant: BASF AG
Inventor： MOHR JUERGEN , VANSANT FRANS , POLT AXEL W , SCHOLL STEPHAN , KRUEGER SIEGFRIED , STAATZ HARTMUT
Abstract: PCT No. PCT/EP97/00245 Sec. 371 Date Jul. 24, 1998 Sec. 102(e) Date Jul. 24, 1998 PCT Filed Jan. 20, 1997 PCT Pub. No. WO97/26970 PCT Pub. Date Jul. 31, 1997The invention relates to a process for evaporating a liquid containing vaporizable oxidation-sensitive compounds in an evaporator in which the liquid is brought into contact with a heated solid surface for evaporation, by a process in which direct contact between the resulting vapor phase and the heated solid surface is substantially avoided. It also directed to an evaporator composed of a heatable solid surface (16), an apparatus (2, 3) for heating the solid surface and an apparatus (10) for feeding a liquid containing vaporizable compounds to the heatable solid surface, wherein the apparatus for feeding the liquid is designed and arranged in the evaporator in such a way (12, 14, 18) that direct contact between a resulting vapor phase and the heatable solid surface is substantially avoided.
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公开(公告)号：PL347580A1
公开(公告)日：2002-04-08
申请号：PL34758099
申请日：1999-09-21
Applicant: BASF AG
Inventor： THEIS GERHARD , ADRIAN TILL , BESSLING BERND , HASSE HANS , VANSANT FRANS
Abstract: A process for the distillative recovery of high purity monoethylene glycol from the hydrolysis, product of ethylene oxide by pressure dewatering, preferably in a battery, vacuum dewatering and subsequent purifying distillation, wherein during the vacuum dewatering an aqueous stream is withdrawn which contains-monoethylene glycol in a concentration below 1% by weight, preferably below 0.1% by weight, medium boilers and low boilers. The withdrawn aqueous stream is, optionally after further workup, removed from the system.
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