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    Separating acrylic acid comprises cooling product gas mixture of partial gas phase oxidation of three carbon precursor compound in cooler and providing cooled product gas mixture with (non)evaporated cooling liquid into absorption column
    12.
    发明专利
    Separating acrylic acid comprises cooling product gas mixture of partial gas phase oxidation of three carbon precursor compound in cooler and providing cooled product gas mixture with (non)evaporated cooling liquid into absorption column 未知

    公开(公告)号：DE102009027401A1

    公开(公告)日：2010-02-18

    申请号：DE102009027401

    申请日：2009-07-01

    Applicant: BASF SE

    Inventor： BLUM TILL ,  ZUROWSKI PETER ,  RISSEL STEFFEN ,  HAREMZA SYLKE ,  FRIESE THORSTEN ,  JAEGER ULRICH ,  SCHLIEPHAKE VOLKER ,  MUELLER-ENGEL KLAUS JOACHIM ,  HAMMON ULRICH ,  HOEFER FRANK

    IPC: C07C57/07

    Abstract: Separating acrylic acid from the product gas mixture of a heterogeneously catalyzed partial gas phase oxidation of at least one 3C-precursor compound to acrylic acid comprises: (a) cooling the product gas mixture in a direct cooler by directly cooling with a finely sprayed cooling liquid, where a portion of the cooling liquid is evaporated and (b) providing the cooled product gas mixture together with evaporated and non-evaporated cooling liquid into an absorption column of a sump region. Method for separating acrylic acid from the product gas mixture of a heterogeneously catalyzed partial gas phase oxidation of at least a 3C-precursor compound to acrylic acid, where the mixture, in addition to acrylic acid, comprises water vapor, glyoxal, low boiling, average boiling, high boiling and highly condensable compounds that are different from the above, as by-products, comprises: (a) cooling the product gas mixture in a direct cooler by directly cooling with a finely sprayed cooling liquid, where a portion of the cooling liquid is evaporated; (b) providing the cooled product gas mixture together with evaporated and non-evaporated cooling liquid into an absorption column of a sump region, where between the absorption room of the absorption column a chimney plate having at least one chimney, is present and connected; (c) providing the cooled product gas mixture and evaporated cooling liquid into the soil absorption column through the chimney of the chimney plate, which forms descending high-boiling absorption medium, where the chimney plate contains a absorbate, which absorbs acrylic acid; (d) removing the acrylic acid from the absorbate; (e) contacting one portion of absorbate filled in the absorption column to the sump room of the absorption column for forming a sump fluid in the sump region, optionally cooling another portion of the absorbate and recycling the chimney plate into the absorption column; (f) contacting the residual quantity in the absorbate or the absorbate in a rectification column with reinforcing and stripping section; (g) enriching the stripping section of the rectification column with the absorbate and feeding out the stripping section of absorption agent with an acrylic acid weight portion of >= 1 wt.%; (h) enriching the rectification section of the rectification column with acrylic acid and feeding out the reinforcing section of a raw acrylic acid, where the weight portion of the acrylic acid is = 90 wt.%; (i) extracting the obtained sump liquid from the sump region of the absorption column, feeding one portion of the obtained sump liquid, as cooling liquid, into the direct cooler and feeding the remaining portion of the liquid into the bottom of a distillation unit comprising a distillation column and a circulating heat exchangers; (j) separating the sump liquid in the distillation column of the distillation unit in exhaust vapors, whose weight portion in the absorption agent is greater than the weight portion of the sump fluid at absorption agent, and into liquid concentrate, whose weight portion is high, when the absorption agent of the boiling components is greater than the high boiling components of the sump liquid; (k) recycling water vapor, possibly its cooling and/or condensation in an indirect heat exchanger and above the chimney plate in the absorption column; (l) leading out a mass flow from the bottom of the distillation column in the standing height of the liquid concentrate with the temperature T 1>from the distillation column; (m) discharging a partial stream of the mass flow from the procedure of the separation of acrylic acid from the product gas mixture; and (n) recycling the residual stream of the mass flow over the circulation heat exchanger with a temperature (T 2>>= T 1>) of absorbed mass flow from the distillation column, into the distillation column; where the average retention time of the components of the partial stream in the distillation unit is = 40 hours.

    15.
    发明专利
    未知

    公开(公告)号：AT537135T

    公开(公告)日：2011-12-15

    申请号：AT04765776

    申请日：2004-10-02

    Applicant: BASF SE

    Inventor： HOEFER FRANK ,  SCHLIEPHAKE VOLKER ,  MUELLER-ENGEL KLAUS JOACHIM

    IPC: C07C51/44 ,  C07C57/04

    Abstract: The invention relates to a method for rectification separation of an acrylic acid-containing liquid consisting in supplying an acrylic acid-rich material flow to a rectification column upstream of a supplying area and in carrying out an inhibiting polymerisation in the top section of the rectification column with the aid of diacrylic acid.

    METODO PARA PREPARAR (MET) ACRILATOS DE MEZCLAS DE ALCOHOL DE C10.
    16.
    发明专利
    METODO PARA PREPARAR (MET) ACRILATOS DE MEZCLAS DE ALCOHOL DE C10. 未知

    公开(公告)号：ES2369339T3

    公开(公告)日：2011-11-29

    申请号：ES09713787

    申请日：2009-02-26

    Applicant: BASF SE

    Inventor： MEISENBURG UWE ,  HOEFER FRANK ,  SCHWALM REINHOLD ,  GRUBER NICK ,  KARRER LOTHAR

    IPC: C07C67/08 ,  C07C67/54 ,  C07C69/54 ,  C09D133/06 ,  C09J133/06

    Abstract: Método para la producción discontinua de (met) acrilatos de mezclas de alcoholes de C10, mediante la reacción de ácido (met) acrílico con una mezcla isomérica de alcoholes de C10 compuesta de 2-propilheptanol como isómero principal y al menos uno de los alcoholes C10 2-propil-4-metilhexanol, 2-propil-5-metilhexanol, 2-isopropilheptanol, 2isopropil-4-metilhexanol, 2-isopropil-5-metilhexanol y/o 2-propil-4, 4-dimetilpentanol, en presencia de al menos un catalizador ácido y al menos un inhibidor de polimerización y en presencia de un solvente que forma un azeótropo con agua, el azeótropo se destila y se concentra, en cuyo caso el condensado se divide en una fase acuosa y una orgánica, caracterizado porque a) la esterificación se realiza en un reactor con evaporador de recirculación y b) en presencia de un solvente, y c) porque el producto crudo se purifica a continuación mediante destilación para purificación.

    17.
    发明专利
    未知

    公开(公告)号：AT522492T

    公开(公告)日：2011-09-15

    申请号：AT09713787

    申请日：2009-02-26

    Applicant: BASF SE

    Inventor： MEISENBURG UWE ,  HOEFER FRANK ,  SCHWALM REINHOLD ,  GRUBER NICK ,  KARRER LOTHAR

    IPC: C07C67/08 ,  C07C67/54 ,  C07C69/54 ,  C09D133/06 ,  C09J133/06

    Abstract: Process for preparing (meth)acrylates of C10-alcohol mixtures, by reacting (meth)acrylic acid with an isomer mixture of C10-alcohols composed of 2-propylheptanol as the main isomer and at least one of the C10-alcohols 2-propyl-4-methylhexanol, 2-propyl-5-methylhexanol, 2-isopropylheptanol, 2-isopropyl-4-methylhexanol, 2-isopropyl-5-methylhexanol and/or 2-propyl-4,4-dimethylpentanol, in the presence of at least one acidic catalyst and of at least one polymerization inhibitor and in the presence of a solvent which forms an azeotrope with water, the azeotrope is distilled off and condensed, and the condensate splits into an aqueous phase and an organic phase, wherein a) the esterification is performed in a reactor with a circulation evaporator and b) in the presence of a solvent, and c) the crude product is purified by subsequent purifying distillation.

    PROCESO PARA PREPARAR ESTERES (MET)ACRILICOS DE ALCOHOLES DE AMINO N,N-SUSTITUIDOS.
    19.
    发明专利
    PROCESO PARA PREPARAR ESTERES (MET)ACRILICOS DE ALCOHOLES DE AMINO N,N-SUSTITUIDOS. 未知

    公开(公告)号：MX2013003298A

    公开(公告)日：2013-07-22

    申请号：MX2013003298

    申请日：2011-09-21

    Applicant: BASF SE

    Inventor： BERGMANN HERMANN ,  HOEFER FRANK ,  BETTE VIRGINIE ,  PETZOLDT JOCHEN

    IPC: C07C213/06 ,  C07C219/08

    Abstract: La presente invención se refiere a un proceso para preparar ésteres (met)acrílicos (F) de alcoholes de amino N,N-sustituidos, al transesterificar alcoholes de amino N,N-sustituidos ) (ver Fórmula (I) en donde Y y Z son cada uno independientemente alquilo de C1-C20, cicloalquilo de C3-C15, arilo o Y y Z junto con el átomo de nitrógeno que los conecta forman un radical heterocíclico saturado de 5 a 9 miembros que opcionalmente tiene oxígeno, azufre, nitrógeno o nitrógeno sustituido con alquilo de C1-C4 como otro heteroátomo, y X es alquileno de C2-C20 que puede ser interrumpido por 1 a 10 grupos oxi no adyacentes y/o grupos alquilamino de C1-C4 no sustituidos o sustituidos con metoxi, o un cicloalquileno de C3-C15, con al menos un éster (met)acrílico (D) en presencia de por lo menos un catalizador heterogéneo (K), en donde el catalizador heterogéneo (K) se usa sin ningún otro solvente y el contenido de inhibidores de polimerización en la mezcla de reacción es

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