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公开(公告)号：DE10313681A1
公开(公告)日：2004-10-07
申请号：DE10313681
申请日：2003-03-26
Applicant: BASF AG
Inventor： DEININGER JUERGEN , DEMETER JUERGEN , KORY GAD , SOETJE OLIVER , WINTERLING HELMUT , ZEHNER PETER , HEEGER MICHAEL , GANN MARTIN , POLT AXEL , TREULING ULRICH , WEINLE WERNER
Abstract: Polyamides, oligomers thereof or mixtures thereof, if required with further reaction products, are prepared by reacting aminonitriles or dinitriles and diamines or a mixture containing aminonitrile, dinitrile and diamine, and, if required, further polyamide-forming monomers and/oligomers with water in a reactor ( 1 ) having a vertically oriented longitudinal axis, by a process in which, in the reactor ( 1 ), the reaction product is removed from the bottom and ammonia formed and any further low molecular weight compounds formed and water are taken off via the top ( 2 ), wherein the reactor ( 1 ) has at least two chambers ( 4 ) arranged one on top of the other in the longitudinal direction, the chambers ( 4 ) being separated from one another by liquid-tight trays ( 5 ), each chamber ( 4 ) being connected by a liquid overflow ( 6 ) to the chamber ( 4 ) directly underneath and a liquid product stream being taken off by the liquid overflow ( 6 ) of the lowermost chamber ( 4 ), the gas space ( 7 ) above the liquid level in each chamber ( 4 ) being connected to the chamber ( 4 ) arranged directly above in each case by one or more conduit pipes ( 8 ) which in each case opens or open into a gas distributor ( 9 ) having orifices ( 11 ) for gas exit below the liquid level, and comprising in each case at least one baffle plate ( 12 ) which is arranged vertically around each gas distributor ( 9 ) and whose upper end terminates below the liquid level and whose lower end terminates above the liquid-tight tray ( 5 ) of the chamber ( 4 ) and which separates each chamber ( 4 ) into one or more gassed ( 13 ) and into one or more ungassed ( 14 ) spaces.
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公开(公告)号：AT243722T
公开(公告)日：2003-07-15
申请号：AT99917985
申请日：1999-04-15
Applicant: BASF AG
Inventor： AUER HEINZ , CIPRIAN JUERGEN , FRANZ LOTHAR , FRANZISCHKA WOLFGANG , IFFLAND GABRIELE , WECK ALEXANDER , WEINLE WERNER
IPC: C08G65/20 , C08G65/30 , C08G65/32 , C08G65/331
Abstract: The present invention relates to a process for preparing hydroxyl-containing polymers, in particular for preparing polytetrahydrofuran with terminal hydroxyl groups, from the corresponding acyloxy-containing polymers by transesterification with alcohols in the presence of an alkali metal- or alkaline earth metal-containing catalyst, which entails the appropriate acyloxy-containing polymer being introduced together with the alcohol and the catalyst into a first prereactor (I) and converted therein at least partly to the hydroxyl-containing polymer, and the reaction solution being fed into the upper zone (IIa) of a distillation column (II) into whose lower zone (IIb) alcohol in vapor phase is additionally fed. This involves a phase exchange at the coherent and the disperse phase at the transition from the prereactor to the distillation column. Preferably, in addition to the first prereactor, a further 3 prereactors are used which serve as holdup reactors.
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公开(公告)号：DE59806798D1
公开(公告)日：2003-02-13
申请号：DE59806798
申请日：1998-09-25
Applicant: BASF AG
Inventor： AUER HEINZ , BEISER KLAUS , CIPRIAN DR , FRANZ DR , FRANZISCHKA DR , PESSEL ULRICH-DIETER , WEINLE WERNER
Abstract: The foam produced during the continuous production of hydroxyl (OH) group terminated polytetrahydrofuran is removed and by transesterification of the corresponding ester group containing polymer. A process for preparing OH group containing polymers, especially for preparing polytetrahydrofuran with terminal OH groups, by transesterification of the corresponding ester group-containing polymers with alcohols. Tranesterification is carried out continuously in at least one stirred reactor (I,II,III,IV), where at least one reactor (I,II,III,IV) being connected via a line (3,3') to a generally cylindrical container (5,13'), with a diameter of about 2-4 times the diameter of the line (3,3'), to take up the foam formed in the stirred reactor(s) (I,II,III,IV) and to pass the foam tangentially into the cylindrical container (5,13) at a speed sufficient to separate the foam into a gaseous phase and a liquid phase. The gas phase is led off via a line (9) and the liquid phase is led off via a line (7,15).
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公开(公告)号：DE10120801A1
公开(公告)日：2002-11-07
申请号：DE10120801
申请日：2001-04-27
Applicant: BASF AG
Inventor： BENFER REGINA , NILLES MICHAEL , WEINLE WERNER , ZEHNER PETER
IPC: C07D319/06 , B01D3/00 , B01D3/20 , B01J8/04 , B01J8/18 , B01J8/22 , B01J8/34 , B01J10/00 , B01J19/24 , B01J47/00 , C07C68/04 , C07C69/96 , B01J19/00
Abstract: The invention relates to a reactor (1) for gas/liquid or gas/liquid/solid reactions comprising a vertical longitudinal axis, a feed inlet (2) for a liquid or liquid/solid educt stream in the upper area of the reactor and for a gaseous steam (3) in the lower area of the reactor (1). The reactor also comprises at least two chambers (4) that are arranged one above the other in the longitudinal direction, whereby the chambers (4) are separated from one another by liquid-tight bottoms. Each chamber is connected to the chamber (4) located directly underneath by a liquid overflow (6), and a liquid product stream is withdrawn via the liquid overflow (6) of the lowermost chamber (4). The gas space (7) above the liquid level in each chamber (4) is connected to the chamber (4) directly located thereabove by one or more gas feed pipes (8) each of which discharging into a gas distributor (9) with openings for discharging gas underneath the liquid level. The reactor also comprises at least one baffle plate (12), which is vertically arranged around each gas distributor (9) and whose upper end terminates underneath the liquid level and whose lower end terminates above the liquid-tight bottom (5) of the chamber (4). In addition, the baffle plate divides each chamber (4) into one or more gassed (13) spaces and into one or more ungassed (14) spaces.
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公开(公告)号：DE3161038D1
公开(公告)日：1983-11-03
申请号：DE3161038
申请日：1981-09-21
Applicant: BASF AG
Inventor： PFOHL SIGBERG DR , WEINLE WERNER , ZEHNER PETER DR
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Patent Agency Ranking
公开(公告)号：DE2208921A1
公开(公告)日：1973-09-06
申请号：DE2208921
申请日：1972-02-25
Applicant: BASF AG
Inventor： KUERTEN HERIBERT DR ING , NAGEL OTTO DR ING , SINN RICHARD PROF DR ING , WEINLE WERNER , ENGLER PETER DR ING
Abstract: 1413356 Fibrids of thermoplastic materials BADISCHE ANILIN- & SODA-FABRIK AG 23 Feb 1973 [25 Feb 1972] 8938/73 Heading B5B Fibrids (i.e. short fibres) of a thermoplastics material are made by introducing a high-speed propulsive jet and a slower-moving stream of a liquid co-currently into a mixing tube arranged coaxially with the jet, whereby a shear gradient is set up in the mixing tube between the highspeed jet and the slower-moving liquid stream, and feeding the molten thermoplastics material through a die into the region of the shear gradient, whereby the thermoplastics material is broken up into fibres by the action of shear stresses within the region of the shear-gradient. Specified thermoplastics materials include polyethylene, polypropylene and their waxes and extended waxes, polyamides, polyesters, polyvinyl chloride and polystyrene. In Fig. 1, the apparatus is enclosed in container 4. Melt is supplied via 6 to outlet orifice 2; the spinning medium, suitably water, is supplied via 5 to the outlet orifice 1 of the propulsive jet; 3 is the impulse exchange chamber or mixing tube. If the relatively slow-moving stream of liquid entrained from the container is replaced by liquid coming from a pump, the container may be dispensed with, as in Fig. 2, where 7 is the feed-line for the slow-moving medium (water) spinning being effected in tube 3 which acts as impulse exchange chamber.
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公开(公告)号：MY139354A
公开(公告)日：2009-09-30
申请号：MYPI20040965
申请日：2004-03-18
Applicant: BASF AG
Inventor： DEININGER JURGEN , TREULING ULRICH DR , WEINLE WERNER , DEMETER JUERGEN DR , KORY GAD , SOETJE OLIVER , WINTERLING HELMUT DR , ZEHNER PETER DR , HEEGER MICHAEL , GANN MARTIN , POLT AXEL DR
Abstract: POLYAMIDES, OLIGOMERS THEREOF OR MIXTURES THEREOF, IF REQUIRED WITH FURTHER REACTION PRODUCTS, ARE PREPARED BY REACTING AMINONITRILES OR DINITRILES AND DIAMINES OR A MIXTURE CONTAINING AMINONITRILE, DINITRILE AND DIAMINE, AND, IF REQUIRED, FURTHER POLYAMIDE-FORMING MONOMERS AND/OLIGOMERS WITH WATER IN A REACTOR (1) HAVING A VERTICALLY ORIENTED LONGITUDINAL AXIS, BY A PROCESS IN WHICH, IN THE REACTOR (1), THE REACTION PRODUCT IS REMOVED FROM THE BOTTOM AND AMMONIA FORMED AND ANY FURTHER LOW MOLECULAR WEIGHT COMPOUNDS FORMED AND WATER ARE TAKEN OFF VIA THE TOP (2), WHEREIN THE REACTOR (1) -HAS AT LEAST TWO CHAMBERS (4) ARRANGED ONE ON TOP OF THE OTHER IN THE LONGITUDINAL DIRECTION, -THE CHAMBERS (4) BEING SEPARATED FROM ONE ANOTHER BY LIQUID-TIGHT TRAYS (5),-EACH CHAMBER (4) BEING CONNECTED BY A LIQUID OVERFLOW (6) TO THE CHAMBER (4) DIRECTLY UNDERNEAT,H AND A LIQUID PRODUCT STREAM BEING TAKEN OFF BY THE LIQUID OVERFLOW (6) OF THE LOWERMOST CHAMBER (4), -THE GAS SPACE (7) ABOVE THE LIQUID LEVEL IN EACH CHAMBER (4) BEING CONNECTED TO THE CHAMBER (4) ARRANGED DIRECTLY ABOVE IN EACH CASE BY ONE OR MORE CONDUIT PIPES (8) WHICH IN EACH CASE OPENS OR OPEN INTO A GAS DISTRIBUTOR (9) HAVING ORIFICES (11) FOR GAS EXIT BELOW THE LIQUID LEVEL, -AND COMPRISING IN EACH CASE AT LEAST ONE BAFFLE PLATE (12) WHICH IS ARRANGED VERTICALLY AROUND EACH GAS DISTRIBUTOR (9) AND WHOSE UPPER END TERMINATES BELOW THE LIQUID LEVEL AND WHOSE LOWER END TERMINATES ABOVE THE LIQUID-TIGHT TRAY (5) OF THE CHAMBER (4) AND WHICH SEPARATES EACH CHAMBER (4) INTO ONE OR MORE GASSED (13) AND INTO ONE OR MORE UNGASSED (14) SPACES.
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公开(公告)号：AT385845T
公开(公告)日：2008-03-15
申请号：AT02740529
申请日：2002-04-26
Applicant: BASF AG
Inventor： BENFER REGINA , NILLES MICHAEL , WEINLE WERNER , ZEHNER PETER
IPC: B01D3/00 , C07D319/06 , B01D3/20 , B01J8/04 , B01J8/18 , B01J8/22 , B01J8/34 , B01J10/00 , B01J19/24 , B01J47/00 , C07C68/04 , C07C69/96
Abstract: A reactor (1) having a vertical longitudinal axis and an inlet (2) for a liquid or liquid/solid feed stream in the upper region of the reactor and an inlet (3) for a gaseous stream in the lower region of the reactor (1), characterized by at least two chambers (4) arranged above one another in the longitudinal direction, where the chambers (4) are separated from one another by liquid-tight bottom plates, each chamber is connected via a liquid overflow (6) to the chamber (4) located immediately underneath and a liquid product stream is taken off via the liquid overflow (6) of the bottommost chamber (4), the gas space (7) above the liquid surface in each chamber (4) is connected to the chamber (4) located immediately above it by one or more guide tubes (8) which opens (each open) into a gas distributor (9) provided with openings for exit of gas below the liquid surface, and each chamber is provided with at least one guide plate (12) which is arranged vertically around each siphon like gas distributor (9) and whose upper end is below the liquid surface and whose lower end is above the liquid-tight bottom plate (5) of the chamber (4) and which divides each chamber (4) into one or more spaces into which gas flows (13) and one or more spaces into which gas does not flow (14), is used for gas/liquid or gas/liquid/solid reactions.
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公开(公告)号：CA2326888C
公开(公告)日：2008-01-29
申请号：CA2326888
申请日：1999-04-22
Applicant: BASF AG
Inventor： BIEG WALTER , BENFER REGINA , PETERS JARREN , RUGE BERND , MOHR JURGEN , BIRNBACH STEFAN , WEINLE WERNER , ZEHNER PETER , DOCKNER TONI
IPC: C07D317/36 , C07D317/38
Abstract: The invention relates to a method for continually producing 1,3-dioxolan-2- ones such as ethylene carbonate or propylene carbonate by reacting a corresponding oxirane with carbon dioxide in liquid phase in t he presence of a catalyst. The reaction is carried out in a two-part reactor. In the first part of the reactor, the reaction is carried out with back-mixing until a conversion rate of oxirane II of at least 80 % has been reached. In the second part, the reaction is completed under conditions without back-mixing, the carbon dioxide being guided to the oxirane II in a counterflow throughout the reactor.
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公开(公告)号：DE102005034001A1
公开(公告)日：2007-01-25
申请号：DE102005034001
申请日：2005-07-18
Applicant: BASF AG
Inventor： HERWIG STEPHAN , OSTROWSKI THOMAS , MECKELNBURG DIRK , LOEFFLER ACHIM , JOVANOVIC RENATA , WEINLE WERNER
IPC: C08G65/26
Abstract: The invention provides a process for continuously preparing polyether alcohols using DMC catalysts, which comprises, in a first step, in a continuous reactor, adding alkylene oxides onto H-functional starter substances and transferring the output of this reactor to a second step in a reactor which is divided by closed trays into mutually separate sections, known as compartments, which are connected to one another by external pipelines, in which the output of the reactor from the first step of the reaction passes through the compartments in succession.
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