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公开(公告)号：MY140698A
公开(公告)日：2010-01-15
申请号：MYPI20012292
申请日：2001-05-16
Applicant: BASF AG
Inventor： ECK BERND , BAUMANN DIETER , HEILEK JOERG , MUELLER-ENGEL KLAUS JOACHIM DR
Abstract: CRUDE ACRYLIC ACID IS PURIFIED BATCHWISE BY CRYSTALLIZATION BY A PROCESS WHICH COMPRISES AT LEAST ONE PURIFICATION STAGE AND AT LEAST ONE STRIPPING STAGE AND IN WHICH AT LEAST THE FIRST STRIPPING STAGE IS CARRIED OUT IN A DIFFERENT CRYSTALLIZER FROM THE FIRST PURIFICATION STAGE.
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公开(公告)号：DE50210361D1
公开(公告)日：2007-08-02
申请号：DE50210361
申请日：2002-11-08
Applicant: BASF AG
Inventor： HEILEK JOERG , BAUMANN DIETER , ECK BERND , HAMMON ULRICH , MUELLER-ENGEL KLAUS JOACHIM
Abstract: An apparatus for separating crystals from their suspension in contaminated crystal melt with purification, in which a hydraulic wash column has distributor aids in a distributor space.
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公开(公告)号：AT365066T
公开(公告)日：2007-07-15
申请号：AT02787603
申请日：2002-11-08
Applicant: BASF AG
Inventor： HEILEK JOERG , BAUMANN DIETER , ECK BERND , HAMMON ULRICH , MUELLER-ENGEL KLAUS
Abstract: An apparatus for separating crystals from their suspension in contaminated crystal melt with purification, in which a hydraulic wash column has distributor aids in a distributor space.
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公开(公告)号：DE102005062654A1
公开(公告)日：2007-06-28
申请号：DE102005062654
申请日：2005-12-23
Applicant: BASF AG
Inventor： ECK BERND , RAULS MATTHIAS , FEISE HERMANN JOSEF , LETZELTER THOMAS , GUTH JOSEF
Abstract: Method for extracting alcoholate through crystallization from the corresponding alcohol solution comprises crystallizing alcoholate at an absolute pressure of at least 3 bar and a temperature of at least 120[deg]C.
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公开(公告)号：CZ297503B6
公开(公告)日：2007-01-03
申请号：CZ2000898
申请日：1998-09-10
Applicant: BASF AG
Inventor： ECK BERND , MACHHAMMER OTTO , PROLL THEO , SCHLIEPHAKE VOLKER , THIEL JOACHIM , BRAALLOS KLAUS
Abstract: Způsob frakční kondenzace plynné směsi, která kromě kyseliny akrylové nebo kyseliny metakrylové také obsahuje nejméně jednu další kondenzovatelnou složku a dále vysoký podíl jedné nebo více nekondenzovatelných složek a kde je plynná směs vedena přes kolonu, která má separační vnitřní přepážky a kondenzovatelné složky jsou zkondenzovány chlazením.
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Patent Agency Ranking
公开(公告)号：CZ296309B6
公开(公告)日：2006-02-15
申请号：CZ7399
申请日：1997-07-09
Applicant: BASF AG
Inventor： ECK BERND , MACHHAMMER OTTO , PROLL THEO , SCHLIEPHAKE VOLKER
Abstract: Zpusob prípravy kyseliny akrylové nebo kyseliny methakrylové, který zahrnuje: /a/ prípravu smesi plynných produktu, která má slození reakcní smesi z katalytické oxidace alkanu se 3 nebo 4 atomy uhlíku, alkenu se 3 nebo 4 atomy uhlíku, alkanolu se 3 nebo 4 atomy uhlíku a/nebo alkanalu se 3 nebo 4 atomy uhlíku a/nebo jejich prekurzoru, v plynné fáziza vzniku kyseliny akrylové nebo kyseliny methakrylové, pri kterém se provede /b/ kondenzace uvedené smesi plynných produktu, /c/ krystalizace kyseliny akrylové nebo kyseliny methakrylové z roztoku, získaného ve stupni /b/ a /d/ oddelení výsledných krystalu z matecného louhu.
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公开(公告)号：DE50102615D1
公开(公告)日：2004-07-22
申请号：DE50102615
申请日：2001-07-27
Applicant: BASF AG
Inventor： HEILEK JOERG , ECK BERND , BAUMANN DIETER
Abstract: The present invention relates to the use of an optical line detector for regulating the position of the wash front and/or of the build-up front of the crystal bed of a wash column in a melt crystallization process and a corresponding regulation method. The line detector, for example a CCD camera or a linear array of reflection probes, is arranged in such a way that optical properties of the crystal bed can be detected continuously in a region running parallel to the longitudinal axis of the wash column, this region covering the desired setpoint position of the wash front or of the build-up front.
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公开(公告)号：ES2201539T3
公开(公告)日：2004-03-16
申请号：ES98950022
申请日：1998-09-10
Applicant: BASF AG
Inventor： ECK BERND , MACHHAMMER OTTO , PROLL THEO , SCHLIEPHAKE VOLKER , THIEL JOACHIM , BROLLOS KLAUS
Abstract: A process for the fractional condensation of a gas mixture which, in addition to acrylic acid or methacrylic acid, also contains at least one further condensable component and additionally a high proportion of one or more noncondensable components, wherein the gas mixture is passed through a column having separatory internals and the condensable components are condensed by cooling.
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公开(公告)号：DE59808713D1
公开(公告)日：2003-07-17
申请号：DE59808713
申请日：1998-09-10
Applicant: BASF AG
Inventor： ECK BERND , MACHHAMMER OTTO , PROLL THEO , SCHLIEPHAKE VOLKER , THIEL JOACHIM , BROELLOS KLAUS
Abstract: A process for the fractional condensation of a gas mixture which, in addition to acrylic acid or methacrylic acid, also contains at least one further condensable component and additionally a high proportion of one or more noncondensable components, wherein the gas mixture is passed through a column having separatory internals and the condensable components are condensed by cooling.
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公开(公告)号：DE10039025A1
公开(公告)日：2002-02-21
申请号：DE10039025
申请日：2000-08-10
Applicant: BASF AG
Inventor： ECK BERND , BAUMANN DIETER , HEILEK JOERG
Abstract: Purifying crude acrylic acid melt by converting to a crude acrylic acid suspension by cooling, and separating from remaining residual melt in wash column. In purifying a crude melt of acrylic acid (I) containing (excluding water) >= 80 wt.% (I), >= 100 ppm weight acetic acid and >= 10 ppm weight propionic acid, a suspension of purer (I) crystals (IA) and less pure residual melt (II) is produced by cooling the crude melt in the presence of 0.20- 10 wt.% water with respect to (I); and, after optional mechanical separation of part of (II), (IA) are freed from (II) in a column operating with forced transport of (IA) by washing with a melt of purified (IA).
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