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公开(公告)号：JP2000197862A
公开(公告)日：2000-07-18
申请号：JP37620699
申请日：1999-12-02
Applicant: BASF AG
Inventor： VANSANT FRANS DR , DE HERT JOZEF , KOEFFER DIETER , THEIS GERHARD DR , TERJUNG WINFRIED
Abstract: PROBLEM TO BE SOLVED: To provide an apparatus dispensing with washing work probably interrupting continuous evaporation, operated effectively and inexpensively, also usable in the post-treatment of a salt-containing soln. by evaporation and capable of separating a liquid containing dissolved residue in an evaporator without generating the outflow from the bottom portion of the evaporator caused by the clogging with residue. SOLUTION: A washing apparatus for removing residue from the bottom portion outflow pipe of an evaporator generating an upper product and a bottom product and equipped with the bottom part outflow pipe has (a) an outflow container 7, (b) a collection container 8, (c) an outflow valve 10, (d) a washing water valve 11, (e) a container outflow valve 12, (f) washing outflow valve 13, a gas venting valve 14, (h) the piping 17 guided to the outflow valve 10 from the bottom part, (i) a washing agent inlet pipe 3, (j) outflow piping devices 6, 16 and the connection pipelines between the devices (a)-(j).
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公开(公告)号：JP2000297055A
公开(公告)日：2000-10-24
申请号：JP37620799
申请日：1999-12-02
Applicant: BASF AG
Inventor： VANSANT FRANS DR , DE HERT JOZEF , KOEFFER DIETER , THEIS GERHARD DR , TERJUNG WINFRIED
Abstract: PROBLEM TO BE SOLVED: To provide an effective and inexpensive method for recovering all possible glycol as a pure substance which has been formed in a processing operation and for isolating a corresponding mixture generally containing glycol together with salt and water as well so as for high quality products to be obtained. SOLUTION: When isolating glycol from a liquid mixture consisting of glycol, water and salt by (a) vaporizing at least part of water and glycol existing in the mixture and separating a liquid or gaseous medium not containing salt and containing glycol and water, (b) by dehydrating the medium and (c) by isolating glycol from the dehydrated medium, a film evaporator is used for conducting the process (a).
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Patent Agency Ranking
公开(公告)号：AT242756T
公开(公告)日：2003-06-15
申请号：AT99123941
申请日：1999-12-03
Applicant: BASF AG
Inventor： VANSANT FRANS DR , DE HERT JOZEF , KOEFFER DIETER DR , THEIS GERHARD DR , TERJUNG WINFRIED
Abstract: This invention relates to a process for preparing and isolating glycols and to a thin-film evaporator which is used in carrying out the process.
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公开(公告)号：MY121093A
公开(公告)日：2005-12-30
申请号：MYPI9904060
申请日：1999-09-20
Applicant: BASF AG
Inventor： THEIS GERHARD DR , VANSANT FRANS DR
IPC: F01K25/06 , F01K27/02 , C07C29/10 , C07C29/80 , C07C31/20 , C07D301/08 , C07D301/10 , C07D301/32 , C07D303/04 , F22B1/18
Abstract: IN THE PREPARATION OF ETHYLENE OIDE 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：ID27730A
公开(公告)日：2001-04-26
申请号：ID20010668
申请日：1999-09-20
Applicant: BASF AG
Inventor： THEIS GERHARD DR , VANSANT FRANS DR
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：MY122385A
公开(公告)日：2006-04-29
申请号：MYPI9904056
申请日：1999-09-18
Applicant: BASF AG
Inventor： TILL ADRIAN DR , BERND BE XDFLING , HANS HASSE , VANSANT FRANS DR , THEIS GERHARD DR
Abstract: DISCLOSED IS 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 COMPRISES 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. (FIGURE 2)
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公开(公告)号：MY121383A
公开(公告)日：2006-01-28
申请号：MYPI9904083
申请日：1999-09-20
Applicant: BASF AG
Inventor： TILL ADRIAN DR , BERND BE XDFLING , HANS HASSE , VANSANT FRANS DR , THEIS GERHARD DR
Abstract: A PROCESS FOR THE DISTILLATIVE RECOVERY OF HIGH PURITY MONOETHYLENE GLYCOL FROM THE HYDROLYSIS PRODUCT OF ETHYLENE OXIDE BY PRESSURE DEWATERING (2, 3, 4), PREFERABLY IN A BATTERY, VACUUM DEWATERING (5, 10) AND SUBSEQUENT PURIFYING DISTILLATION (6), 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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