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公开(公告)号：AT340819T
公开(公告)日：2006-10-15
申请号：AT04721865
申请日：2004-03-19
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：CA2519816A1
公开(公告)日：2004-10-07
申请号：CA2519816
申请日：2004-03-19
Applicant: BASF AG
Inventor： DEMETER JURGEN , DEININGER JURGEN , WINTERLING HELMUT , HEEGER MICHAEL , ZEHNER PETER , GANN MARTIN , KORY GAD , SOTJE OLIVER , POLT AXEL , TREULING ULRICH , WEINLE WERNER
Abstract: The invention relates to a method for producing polyamides, their oligomers or mixtures thereof, optionally containing other reaction products, by reacting aminonitriles or dinitriles and diamines or a mixture containing aminonitril e, dinitrile and diamine and optionally additional polyamide-forming monomers and/or oligomers with water in a reactor (1) with a vertical longitudinal axis. According to said method, the reaction product is exfiltrated from the sump in the reactor (1) and accumulated ammonia and optionally other accumulated low-molecular compounds and water are drawn off via the head (2) . The invention is characterised in that the reactor (1) comprises at least tw o chambers (4) arranged in a longitudinal direction one above the other, that the chambers (4) are separated from one another by liquid-tight floors (5), that each chamber (4) is connected to the one (4) immediately below by a respective liquid overflow (6) and a liquid product stream is drawn off via the liquid overflow (6) of the lowest chamber (4), that the gas chamber (7) above the liquid level in each chamber (4) is connected to the respective chamber (4) lying immediately above it via one or several conduits (8), whic h open respectively into a gas diffuser (9) comprising orifices (11) for the discharge of gas below the liquid level. The reactor also comprises at least one respective deflector plate (12) positioned vertically around each gas diffuser (9), the upper end of said plate terminating below the liquid level and the lower end terminating above the liquid-tight floor (5) of the chambe r (4), thus sub-dividing each chamber (4) into one or more compartments suppli ed with gas (13) and one or more compartments without gas (14).
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公开(公告)号：AT230423T
公开(公告)日：2003-01-15
申请号：AT98118312
申请日：1998-09-25
Applicant: BASF AG
Inventor： AUER HEINZ , BEISER KLAUS , CIPRIAN JUERGEN DR , FRANZ LOTHAR DR , FRANZISCHKA WOLFGANG 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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Patent Agency Ranking
公开(公告)号：ID26310A
公开(公告)日：2000-12-14
申请号：ID20002218
申请日：1999-04-22
Applicant: BASF AG
Inventor： BIRNBACH STEFAN , DOCKNER TONI , MOHR JURGEN , BENFER REGINA , BIEG WALTER , PETERS JARREN , RUGE BERND , WEINLE WERNER , ZEHNER PETER
IPC: C07D317/36 , C07D317/38
Abstract: A process for the continuous production of 1,3-dioxolan-2-ones such as ethylene carbonate or propylene carbonate by reacting a corresponding oxirane with carbon dioxide in the liquid phase in the presence of a catalyst comprises conducting the reaction in a two-part reactor in whose first part the reaction is taken with backmixing to a conversion of not less than 80% of the oxirane II and in whose second part the reaction is completed under nonbackmixing conditions, and passing the carbon dioxide in countercurrent to the oxirane II in the entire reactor.
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公开(公告)号：DE19742342A1
公开(公告)日：1999-04-01
申请号：DE19742342
申请日：1997-09-25
Applicant: BASF AG
Inventor： AUER HEINZ , BEISER KLAUS , CIPRIAN JUERGEN DR , FRANZ LOTHAR DR , FRANZISCHKA WOLFGANG 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：NO160666C
公开(公告)日：1989-05-16
申请号：NO813548
申请日：1981-10-21
Applicant: BASF AG
Inventor： PFOHL SIGBERG , WEINLE WERNER , ZEHNER PETER
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公开(公告)号：FI812880L
公开(公告)日：1982-04-23
申请号：FI812880
申请日：1981-09-15
Applicant: BASF AG
Inventor： PFOHL SIGBERG , WEINLE WERNER , ZEHNER PETER
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公开(公告)号：DE2264876A1
公开(公告)日：1975-04-24
申请号：DE2264876
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
IPC: D01D5/00
Abstract: Extruded plastic filaments (e.g. polyolefine) are passed from an extrusion nozzle into a high energy flow of auxiliary fluid (pref. water) whereby the filaments are split into short fibres (e.g. micro-fibres) by the shearing action of the auxiliary fluid flow. Pref. the filaments are extruded from nozzles surrounding a nozzle for the auxiliary fluid and pref. the nozzles are directed towards a cylindrical splitting chamber in which the high energy flow is produced and the filaments are split. The splitting chamber may be located in a main chamber filled with auxiliary fluid. The high energy flow may have a velocity of 37 m/sec and a pressure of 7 atm. The fibres produced are uniform, and high temp. heating of the auxiliary fluid and the use of solvents are eliminated resulting in a more economic process.
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