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公开(公告)号:AT450492T
公开(公告)日:2009-12-15
申请号:AT04763312
申请日:2004-07-17
Applicant: BASF SE
Inventor: SCHLIEPHAKE VOLKER , HAMMON ULRICH , BECHER ROLF-DIETER , MUELLER-ENGEL KLAUS
Abstract: Process for operating a continuous heterogeneously catalyzed gas phase partial oxidation of at least one organic compound using compressed air as the oxygen source which is filtered before its compression.
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公开(公告)号:DE102008042010A1
公开(公告)日:2009-04-16
申请号:DE102008042010
申请日:2008-09-12
Applicant: BASF SE
Inventor: HEILEK JOERG , HAMMON ULRICH , MUELLER-ENGEL KLAUS-JOACHIM , SCHLIEPHAKE VOLKER , BAUMANN DIETER
Abstract: The procedure for continuous separation of target product (X) in the form of fine particle of crystallisate from a liquid phase (P) existing from the target product (X) and/or by the target product of different constituents, comprises indirectly operating a heat exchanger having primary and secondary areas, which are spatially separated with one another through a material divider that serves as an area for transmitting heat from the secondary area to the primary area by passing a stream at the liquid phase (P) in the secondary area of the heat exchanger. The procedure for continuous separation of target product (X) in the form of fine particle of crystallisate from a liquid phase (P) existing from the target product (X) and/or by the target product of different constituents, comprises indirectly operating a heat exchanger having primary and secondary areas, which are spatially separated with one another through a material divider that serves as an area for transmitting heat from the secondary area to the primary area by passing a stream at the liquid phase (P) in the secondary area of the heat exchanger during the primary area flows throughable simultaneously to a liquid cooling medium so that it forms fine particles of crystallisate of the target product in the secondary area under disposition of a liquid residual phase from the liquid phase (P). The total mole fraction of the liquid phase has the value of M b, p ges at the constituent (B i). The liquid residual phase (R) contains ingredients with a total mole fraction of M b, r (ges) greater than M b, p (ges) in comparison with the liquid phase (P). The content of residual phase in the target product is 70 wt.%. The cooling medium is suspended by fine particles of crystallisate of the target product in the liquid residual phase under receiving a suspension (S) having a crystallization grade (Y). The secondary area of the heat exchanger continuously takes the suspension with the temperature T s (aus). The suspension of fine particle crystallisate from the extracted suspension in load of discharge device is introduced with temperature (TS) to a mixing buffer container by a pump and the liquid phase is separated from the suspension contained in the discharge device. The temperature of the suspension in the buffer container is elevated from the way of secondary area in the buffer container and/or pipelines of the buffer container by external energy source at a value of T(pu) above of T s(aus) and/or the total mole fraction of the ingredients is increased in the liquid residual phase of the suspension in the buffer container through external additive in the ingredients at a value of M b, p u (ges) above of M b, r (ges). The T(pu)-T s(aus) is greater than or equal to 0.1 K. The increasing of M b, r ges at M b, r (ges) is greater than or equal to 0.1%. The content of the liquid residual phase at the target product is greater than or equal 90 wt.%. The crystallization grade (Y) is 0.20-0.40.
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公开(公告)号:DE102007004960A1
公开(公告)日:2008-07-31
申请号:DE102007004960
申请日:2007-01-26
Applicant: BASF SE
Inventor: DIEFENBACHER ARMIN , HAMMON ULRICH , SCHLIEPHAKE VOLKER , SIEDER GEORG
IPC: C07C57/05 , C07C57/07 , C08F2/02 , C08F2/04 , C08F220/06
Abstract: In production of acrylic acid (I) by partial gas phase oxidation, where the product gas mixture (containing (I), steam and by-products) is selectively condensed in a column and part of a withdrawn acidic water stream (containing (I)) is recycled to the column, (I) is extracted with an organic solvent from another part of the acidic water and (I) is thermally separated from the extract before recycling, purifying and/or taking up in alkali. In the production of acrylic acid (I) by partial gas phase oxidation of 3C precursor(s) (II) with oxygen over a solid catalyst at elevated temperature, the product gas mixture containing (I), steam and by-products (III) (optionally after (in)direct cooling) is passed upwards through a selective condensation column with separators. Water and (III) are withdrawn at a first side outlet above the introduction site; acidic water containing (I) and (III) is withdrawn at a second, higher side outlet; a residual gas containing lower-boiling (III) is withdrawn at the head; and a liquid containing (I) and higher boiling (III) is obtained at the sump. Part of the acidic water is recycled to the column (optionally after cooling) and the crude (I) is purified by further thermal treatment. The novel features are that (I) is extracted with an organic solvent (IV) from another part of the acidic water; (I) is thermally separated from the obtained solution of (I) in (IV); and the obtained (I) is recycled to the column, or is further purified and/or taken up in aqueous metal hydroxide solution.
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公开(公告)号:BRPI0721107B1
公开(公告)日:2017-01-24
申请号:BRPI0721107
申请日:2007-12-11
Applicant: BASF SE
Inventor: HÖFER FRANK , LIPOWSKY GUNTER , MÜLLER-ENGEL KLAUS JOACHIM , ZUROWSKI PETER , RISSEL STEFFEN , HAREMZA SYLKE , JÄGER ULRICH , SCHLIEPHAKE VOLKER
IPC: C08K5/17 , C08F220/00 , F28D1/00
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公开(公告)号:BR112012014487A2
公开(公告)日:2016-08-16
申请号:BR112012014487
申请日:2010-12-13
Applicant: BASF SE
Inventor: LIPOWSKY GUNTER , RISSEL STEFFEN , HAREMZA SYLKE , JÄGER ULRICH , SCHLIEPHAKE VOLKER
IPC: C07C57/075 , C07C67/62 , C07C69/54
Abstract: ''processo para inibir polimerização de ácido (met) acrílico e/ou ésteres (met)acrílicos''. é descrito um processo para inibir polimerização de ácido (met)acrílico e/ou ésteres (met)acrílicos introduzindo um gás oxigenoso no ácido (met)acrílico e/ou no éster do ácido (met)acrílico, em que o ácido (met)acrílico e/ou o éster do ácido (met)acrílico tem um grau de pureza de pelo menos 95% e está no estado líquido.
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36.
公开(公告)号:MX2015004184A
公开(公告)日:2015-06-10
申请号:MX2015004184
申请日:2013-09-23
Applicant: BASF SE
Inventor: BETTE VIRGINIE , PETZOLDT JOCHEN , JÄGER ULRICH , SCHLIEPHAKE VOLKER , LANG ORTMUND , KORN TOBIAS JOHANNES , HECHLER CLAUS
Abstract: Un proceso continuo para la preparación de (met)acrilatos de mezclas de alcohol-C10 por reacción de ácido glacial (met)acrílico con una mezcla de isómeros de alcoholes-C10 compuestos de 2- propilheptanol como el isómero principal y al menos uno de los alcoholes-C10 2-propil-4metilhexanol 2-propil-5-metilhexanol, 2- isopropilheptanol, 2-isopropil-4-metilhexanol, 2-isopropil-5-metilhexanol y/o 2-propil-4,4-dimetilpentanol, y el uso de un diéster de ácidos dicarboxílicos que se han esterificado con compuestos que contienen Noxil, como inhibidores de la polimerización en un proceso de este tipo.
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公开(公告)号:BRPI0809044A2
公开(公告)日:2014-09-02
申请号:BRPI0809044
申请日:2008-03-17
Applicant: BASF SE
Inventor: HEILEK JOERG , HAMMON ULRICH , SCHLIEPHAKE VOLKER , MUELLER-ENGEL KLAUS JOACHIM , BLUM TILL
IPC: C07C51/42 , C07C45/78 , C07C45/79 , C07C45/86 , C07C47/22 , C07C51/47 , C07C51/50 , C07C57/04 , C07C59/54 , C07C67/48 , C07C67/56 , C07C67/62
Abstract: A process for transporting a liquid monomer phase which has been withdrawn from a storage vessel and comprises methacrylic monomers to an extent of ≧90% by weight, in a tank truck or in a tanker ship, in which the liquid monomer phase is subjected to a separating operation on the route from the storage vessel into the tank of a tank truck or of a tanker ship in order to separate polymer of the monomer present in dissolved form in the liquid monomer phase.
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公开(公告)号:DE102012217943A1
公开(公告)日:2014-05-15
申请号:DE102012217943
申请日:2012-10-01
Applicant: BASF SE
Inventor: JÄGER ULRICH , SCHLIEPHAKE VOLKER , LANG ORTMUND , PETZOLDT JOCHEN , KORN TOBIAS JOHANNES , BETTE VIRGINIE , HECHLER CLAUS
Abstract: Kontinuierliches Verfahren zur Herstellung von (Meth)acrylaten von C10-Alkoholgemischen durch Umsetzung von Rein-(Meth)acrylsäure mit einem Isomerengemisch von C10-Alkoholen aus 2-Propylheptanol als Hauptisomer und mindestens einem der C10-Alkohole 2-Propyl-4-methylhexanol, 2-Propyl-5-methylhexanol, 2-Isopropylheptanol, 2-Isopropyl-4-mathylhexanol, 2-isopropyl-5-methylhexanol und/oder 2-Propyl-4,4-dimethylpentanol, sowie die Verwendung eines Diester von Dicarbonsäuren, die mit N-Oxyl-gruppenhaltigen Verbindungen verestert sind, als Polymerisationsinhibitoren in einem solchen Verfahren
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39.
公开(公告)号:ZA201205143B
公开(公告)日:2013-09-25
申请号:ZA201205143
申请日:2012-07-11
Applicant: BASF SE
Inventor: LIPOWSKY GUNTER , RISSEL STEFFEN , SCHLIEPHAKE VOLKER , JAGER ULRICH , HAREMZA SYLKE
IPC: C07C20060101
Abstract: A process for inhibiting polymerization of (meth)acrylic acid and/or (meth)acrylic esters by introducing an oxygenous gas into the (meth)acrylic acid and/or the (meth)acrylic ester, in which the (meth)acrylic acid and/or the (meth)acrylic ester has a degree of purity of at least 95% and is in the liquid state.
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40.
公开(公告)号:SG181585A1
公开(公告)日:2012-07-30
申请号:SG2012042263
申请日:2010-12-13
Applicant: BASF SE
Inventor: LIPOWSKY GUNTER , RISSEL STEFFEN , SCHLIEPHAKE VOLKER , JAEGER ULRICH , HAREMZA SYLKE
Abstract: Method for inhibiting the polymerization of (meth)arcylic acid and/or (meth)acrylic acidestersAbstractA process for inhibiting polymerization of (meth)acrylic acid and/or (meth)acrylic estersby introducing an oxygenous gas into the (meth)acrylic acid and/or the (meth)acrylicester, in whith the (meth)acrylic acid and/lof the (meth)acryk ester has a degree of purity of at least 95% and is in the Ilquid state,.No suitable figure
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