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公开(公告)号：DE59607379D1
公开(公告)日：2001-08-30
申请号：DE59607379
申请日：1996-11-05
Applicant: BASF AG
Inventor： BESSLING BERND , ZECK SEBASTIAN , PLUECKHAN JUERGEN , MAYER THOMAS , LOEFFLER ULRICH , SPIEGEL GUENTER , BALLENWEG RUBENS , BRUDI GERHARD , GIESELBERG KLAUS , HILPRECHT LUTZ , TERJUNG WINFRIED , AUER HEINZ , POLT WERNER , SCHOLL STEPHAN
IPC: B01D3/00 , B01D3/16 , C07D301/32 , C07D303/02 , C07D303/04
Abstract: PCT No. PCT/EP96/04818 Sec. 371 Date May 18, 1998 Sec. 102(e) Date May 18, 1998 PCT Filed Nov. 5, 1996 PCT Pub. No. WO97/19069 PCT Pub. Date May 29, 1997A process for distilling ethylene oxide out of a mixture including ethylene oxide in a column at an absolute pressure of from 2 to 10 bar and a temperature of 20 to 180 DEG C. by withdrawing pure ethylene oxide in the liquid or gaseous state overhead or via a sidestream in the rectifying section of the column includes effecting the distillation in a column having on its inside a plurality of successive zones of structured sheet-metal packing or dumped beds of packing elements, these zones being assigned one or more extinguishing systems on the outside of the column.
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22.发明专利
公开(公告)号：CA2358097A1
公开(公告)日：2000-07-13
申请号：CA2358097
申请日：1999-12-24
Applicant: BASF AG
Inventor： ZHAO QI , DILLMANN PETER , DIEBOLD BERND , HUFFER STEPHAN , FRANKE AXEL , SCHOLL STEPHAN , MUELLER-STEINHAGEN HANS
IPC: C08F2/01 , C08F10/00 , C23C18/16 , C23C18/31 , C23C18/34 , C23C18/36 , C23C18/40 , C23C18/48 , C23C18/50 , C23C18/52 , F28F19/02 , F28F19/06
Abstract: The invention relates to a method for producing a heat exchanger. Said metho d is characterised in that a metal polymer dispersion layer having a halogenat ed polymer is chemically deposited on a heat exchange surface in a currentless manner. The invention also relates to a method for producing a heat exchange r. Said method is characterised in that a metal phosphor layer having a thickne ss of 1 to 15 .mu.m is applied by currentless chemical deposition before the metal polymer dispersion layer is applied. The invention also relates to a heat exchanger which can be produced by an inventive method and to the utilisation of a coating which is produced by currentlessly, chemically depositing a metal polymer dispersion layer having a halogenated polymer in order to make the coated surfaces less likely to accumulate solid materials from fluids whereby deposits are formed.
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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：SA1144B1
公开(公告)日：2006-08-20
申请号：SA97180477
申请日：1997-10-08
Applicant: BASF AG
Inventor： SCHOLL STEPHAN , MOHR DR JURGEN , KRUGER SIEGFRIED , VANSANT FRANS , STAATZ HARTMUT , POLT DR AXEL WERNER
Abstract: الملخص: يتعلقالإختراعبعمليةلتبخيرسائليحتويعلىمركباتقابلةللتبخرحساسةللأكسدة vaporizable oxidation-sensitive compounds فيمبخر evaporator الذيفيهيتصلالسائلمعسطحصلبساخنللتبخير،بواسطةعمليةفيهايتجنبجوهرياالإتصالالمباشربينحالةالبخار vapor phase الناتجوالسطحالصلبالساخن،ومبخر evaporator يشملسطحصلبقابلللتسخين،جهازلتسخينالسطحالصلب. يتعلقالإختراعأيضابمبخر evaporator متكونمنسطحصلبقابلللتسخين (٦١)،جهاز (٢،٣) لتسخينالسطحالصلبوجهاز (١٠) لتغذيةسائليحتويعلىمركباتقابلةللتبخرإلىالسطحالصلبالقابلللتسخين،حيثيصممويرتبالجهازلتغذيةالسائلفيالمبخر evaporator بحيث (١٢،١٤،١٨) يتجنبجوهرياالإتصالالمباشربينحالةالبخار vapor phase الناتجوالسطحالصلبالقابلللتسخين.،
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公开(公告)号：DE10295499D2
公开(公告)日：2004-10-28
申请号：DE10295499
申请日：2002-11-28
Applicant: BASF AG
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Patent Agency Ranking
公开(公告)号：AU2003277868A1
公开(公告)日：2004-04-23
申请号：AU2003277868
申请日：2003-09-18
Applicant: BASF AG
Inventor： STROFER ECKHARD , SCHOLL STEPHAN , SOHN MARTIN , WOLFERT ANDREAS , PALLASCH HANS-JURGEN , BREDEHOFT JAN PETER
IPC: B01D1/06 , C07C263/10 , C07C263/20 , C07C265/14 , B01D3/00
Abstract: Isocyanates are prepared by reacting primary amines with phosgene in a reactor by a process in which a reaction discharge is present in the form of a suspension which contains the isocyanate to be prepared, as a liquid, and carbamyl chlorides as a solid, and the suspension is worked up in a film evaporator, and this process is carried out in a production plant.
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公开(公告)号：DE10158813A1
公开(公告)日：2003-06-12
申请号：DE10158813
申请日：2001-11-30
Applicant: BASF AG
Inventor： STROEFER ECKHARD , ARMBRUSTER HARALD , EGBERS GITTA , FREYHOF REINHARD , FRIESE THORSTEN , HECK LUDWIG E , HILDENBRAND PETER , ZEINER HARTMUT , SCHOLL STEPHAN , GOERTZ HANS-HELMUT
Abstract: According to the invention, the production of oxymethylene homo- or co-polymers from an aqueous solution of formaldehyde and polyoxymethylene glycols is achieved, whereby 1) in a separation stage, water and formaldehyde are at least partly separated out from the aqueous solution, such that a phase containing polyoxymethylene glycols is obtained, in which the molar ratio of polyoxymethylene glycols to formaldehyde is greater than 1:0.6 and 2) the polyoxymethylene glycols obtained in stage 1) are reacted in the presence of polycondensation catalysts with abstraction of water to give oxymethylene homo- or co-polymers.
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公开(公告)号：ES2159833T3
公开(公告)日：2001-10-16
申请号：ES97901560
申请日：1997-01-20
Applicant: BASF AG
Inventor： MOHR JURGEN , VANSANT FRANS , POLT AXEL WERNER , SCHOLL STEPHAN , KRUGER 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：DE19907316A1
公开(公告)日：2000-08-24
申请号：DE19907316
申请日：1999-02-22
Applicant: BASF AG
Inventor： SCHOLL STEPHAN , HERBST HOLGER , MARTAN HANS , DAHLKE UWE , WECK ALEXANDER
Abstract: Heat exchangers (I) comprising hollow panels, each of which has an inlet and outlet for heat-transfer fluid and comprises two plates that are welded together around the edge and at various points, lines or areas internally, are used as evaporators and/or condensers in processes for producing polymerizable monomers. An Independent claim is also included for a process for producing (meth)acrylic acid from a mixture of (meth)acrylic acid and a higher-boiling solvent, comprising distilling the mixture in a column which is connected to an evaporator of type (I) and has stripping and concentrating zones, between which the mixture is fed, a side outlet for (meth)acrylic acid, and top and side inlets for polymerization inhibitor, the amount of inhibitor supplied to the top inlet being less than that supplied to the side inlet.
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30.发明专利
公开(公告)号：PL328158A1
公开(公告)日：1999-01-18
申请号：PL32815897
申请日：1997-01-20
Applicant: BASF AG
Inventor： MOHR JUERGEN , VANSANT FRANS , POLT AXEL WERNER , 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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