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公开(公告)号:DE10054924C2
公开(公告)日:2003-10-23
申请号:DE10054924
申请日:2000-11-06
Applicant: BASF AG
Inventor: SCHERZER DIETRICH , WITTSTOCK KLAUS , REGENAUER WOLFGANG , LUTTER HEINZ-DIETER
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公开(公告)号:DE10141598A1
公开(公告)日:2003-03-06
申请号:DE10141598
申请日:2001-08-24
Applicant: BASF AG
Inventor: JUNGE DIETER , SCHERZER DIETRICH , WITTSTOCK KLAUS , FUEGER CLAUS
IPC: B01J19/00
Abstract: A micro-reactor for chemical reactions has two parallel plates (1, 2) fixed to each other. One plate (1) has a number of reaction chambers (3) with closures and seals, feed and discharge tubes (12, 13, 14). Lower plate (1) chamber (3) apertures (6) are aligned with closures (7) to the top plate (2). Each closure has one end which may be inserted separately with a seal (11) in the other plate (2). The seal is an O-ring seal which engages in a circular groove (10) in the closure free end. The feed and product discharge tubes and the process monitoring systems are axial passages within the closures. The plate (1) having the reactor chambers is secured within a precisely-fitting U-shaped frame (4). The upper plate (2) with closures is attached by screws to the frame.
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公开(公告)号:DE19927131A1
公开(公告)日:1999-12-30
申请号:DE19927131
申请日:1999-06-15
Applicant: BASF AG
Inventor: ERBES JOERG , HOFMANN JUERGEN , WITTSTOCK KLAUS
Abstract: The solvent of a polymer solution can be exchanged with styrene or styrene derivatives by bringing the styrene (derivative) vapor into contact with the polymer solution at a decreased temperature, and separation of the gaseous styrene/solvent-mixture obtained from the styrene-containing polymer solution.
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公开(公告)号:AU1230999A
公开(公告)日:1999-05-31
申请号:AU1230999
申请日:1998-10-21
Applicant: BASF AG
Inventor: FISCHER WOLFGANG , BAUMGARTEL MICHAEL , LOTH WOLFGANG , SCHADE CHRISTIAN , WITTSTOCK KLAUS
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公开(公告)号:DE10103425A1
公开(公告)日:2002-08-01
申请号:DE10103425
申请日:2001-01-26
Applicant: BASF AG
Inventor: WITTSTOCK KLAUS , GOETZ ALEXANDER , NEUHAUS RALF , DOLCH STEFAN , KATSICHTIS CHARILAOS
Abstract: To mix two flows or homogenize an inhomogenous flow in a mixer (21), the two flows follow a serpentine path in at least two overlaid planes (7,14), where the flow cross section is continuously reduced in the flow directions in each plane. The flows are shifted continuously between the planes by connecting passages. To mix or homogenize flows, in a static mixer, the flow(s) is (are) fed into a premixing zone at a feed layer (1) and, in the flow direction, alternate between the planes by the connecting passages. The flows come together in a hollow zone at the outflow end of the static mixer. The overlaid planes are heated electrically, or the flows are heated by a fluid. The part-flows are eddied as they are transferred between the planes. The flow(s) travel(s) through two successive static mixers. The flow structure is extended by the reduction of the flow cross section. The flows are branched as they pass through the mixer. The flows are crossed over into parallel flow planes. An independent claim is included for a static mixer with overlaid flow plane layers, with a separation plane (12) between them, to mix at least two flows. The planes have flow structure configurations. Preferred Features: The separation plane has a pattern of passage openings. The flow channels run continuously in the flow direction, in serpentine paths in a mirror image when assembled with the separation plane between them. Dividing edges are shaped at the separation plane. The flow channel structures form longitudinal chambers, interconnected by passage openings, and defined by deflection edges which direct the flow(s) to the passage openings. The parallel planes are fitted together with centering units to give the correct positioning. The planes can be separated easily. The dimensions of the static mixer are set according to applications in the macroscopic or microscopic working range.
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公开(公告)号:DE10103424A1
公开(公告)日:2002-08-01
申请号:DE10103424
申请日:2001-01-26
Applicant: BASF AG
Inventor: KATSICHTIS CHARILAOS , NEUHAUS RALF , KRAEMER MARKUS , SCHOLZ GUENTER , LEBERFINGER MARCUS , WITTSTOCK KLAUS
Abstract: Production of polyisocyanate-polyaddition products, by reaction of polyisocyanates with compounds containing NCO-reactive H atoms optionally in presence of chain-extenders, catalysts and other additives, is effected continuously in a multi-modular plate reactor having inlet, mixing, (optionally) dwell, (optionally) heating and cooling and outlet modules.
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公开(公告)号:DE10054924A1
公开(公告)日:2002-05-23
申请号:DE10054924
申请日:2000-11-06
Applicant: BASF AG
Inventor: SCHERZER DIETRICH , WITTSTOCK KLAUS , REGENAUER WOLFGANG , LUTTER HEINZ-DIETER
Abstract: A process for detecting cell holes during foam formation in foam forming substances with recording of the sound alteration due to the holes by at least one device and assessment of the sound level with the aid of at least one evaluation unit is new. Independent claims are also included for: (1) a sound detection unit as above, including a device for recording sound alterations connected to a sound level evaluation unit; (2) a computer program with a program code for detecting, recording, and measuring the sound levels; and (3) a holder containing the sound alteration detector fixed to the holder.
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公开(公告)号:DE19958689A1
公开(公告)日:2001-06-07
申请号:DE19958689
申请日:1999-12-06
Applicant: BASF AG
Inventor: SCHERZER DIETRICH , JUNGE DIETER , SCHROF WOLFGANG , WITTSTOCK KLAUS , FUEGER CLAUS , GOETZ ALEXANDER , REGENAUER WOLFGANG
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