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    53.
    发明专利
    未知

    公开(公告)号：DE50306511D1

    公开(公告)日：2007-03-29

    申请号：DE50306511

    申请日：2003-05-13

    Applicant: BASF AG

    Inventor： FRIESE KATRIN ,  RAULS MATTHIAS ,  FREYHOF REINHARD ,  FRIESE THORSTEN ,  ARMBRUSTER HARALD ,  ZEINER HARTMUT ,  EGBERS GITTA ,  STROEFER ECKHARD ,  HECK LUDWIG ,  HILDENBRAND PETER

    IPC: C07D323/06

    Abstract: Production of trioxane by trimerization of formaldehyde in aqueous acid solution followed by separation of trioxane from a crude trioxane product mixture of trioxane, water and formaldehyde comprises: distillation of the crude trioxane; crystallization of the trioxane and; separation from the mother liquor followed by melting and distillation of other byproducts. A process for the production of trioxane by trimerization of formaldehyde in aqueous acid solution followed by separation of trioxane from a crude trioxane product mixture of trioxane, water and formaldehyde comprises: (a) distillation of the crude trioxane; (b) crystallization of the trioxane and; (c) separation from the mother liquor followed by; (d) melting and; (e) distillation of other byproducts.

    54.
    发明专利
    未知

    公开(公告)号：AT353883T

    公开(公告)日：2007-03-15

    申请号：AT03752664

    申请日：2003-05-13

    Applicant: BASF AG

    Inventor： FRIESE KATRIN ,  RAULS MATTHIAS ,  FREYHOF REINHARD ,  FRIESE THORSTEN ,  ARMBRUSTER HARALD ,  ZEINER HARTMUT ,  EGBERS GITTA ,  STROEFER ECKHARD ,  HECK LUDWIG ,  HILDENBRAND PETER

    IPC: C07D323/06

    Abstract: Production of trioxane by trimerization of formaldehyde in aqueous acid solution followed by separation of trioxane from a crude trioxane product mixture of trioxane, water and formaldehyde comprises: distillation of the crude trioxane; crystallization of the trioxane and; separation from the mother liquor followed by melting and distillation of other byproducts. A process for the production of trioxane by trimerization of formaldehyde in aqueous acid solution followed by separation of trioxane from a crude trioxane product mixture of trioxane, water and formaldehyde comprises: (a) distillation of the crude trioxane; (b) crystallization of the trioxane and; (c) separation from the mother liquor followed by; (d) melting and; (e) distillation of other byproducts.

    MODIFICACIONES CRISTALINAS DE PIRACLOSTROBINA Y PROCEDIMIENTO PARA PREPARARLAS
    55.
    发明专利
    MODIFICACIONES CRISTALINAS DE PIRACLOSTROBINA Y PROCEDIMIENTO PARA PREPARARLAS 未知

    公开(公告)号：PE00902007A1

    公开(公告)日：2007-02-09

    申请号：PE0006812006

    申请日：2006-06-16

    Applicant: BASF AG

    Inventor： ZIEGLER HANS ,  MAYER WINFRIED ,  SCHNEIDER KARL-HEINRICH ,  ERK PETER ,  NOACK RAINER ,  WUCKELT JORG ,  RAULS MATTHIAS ,  GOTZ ROLAND ,  VOGELBACHER UWE JOSEF ,  COX GERHARD ,  KROHL THOMAS

    IPC: C07D231/22

    CPC classification number: A01N47/24 ,  C07D231/22 ,  A01N25/04 ,  A01N25/02 ,  A01N2300/00

    Abstract: SE REFIERE A UNA MODIFICACION CRISTALINA IV, LA CUAL EN UN DIFRACTOGRAMA DE POLVO DE RAYOS X A 25°C DEMUESTRA POR LO MENOS TRES DE LOS REFLEJOS SIGUIENTES: d=6,02± 0,01 Å, d=4,78± 0,01 Å, d=4,01± 0,01 Å, d=3,55± 0,01 Å Y d=3,01± 0,01 Å; TENIENDO UN PUNTO DE FUSION ENTRE 62°C Y 72°C, Y UN CONTENIDO DE PIRACLOSTROBINA POR LO MENOS DE 98% EN PESO. UNA MODIFICACION CRISTALINA II, LA CUAL EN UN DIFRACTOGRAMA DE POLVO DE RAYOS X A 25°C DEMUESTRA POR LO MENOS CUATRO DE LOS REFLEJOS SIGUIENTES: d=5,93± 0,01 Å, d=5,82± 0,01 Å, d=4,89± 0,01 Å, d=4,78± 0,01 Å Y d=4,71± 0,01 Å, d=3,97± 0,01 Å, d=3,89± 0,01 Å, d=3,77± 0,01 Å; d=3,75± 0,01 Å, d=3,57± 0,01 Å Y d=3,43± 0,01 Å; TENIENDO UN PUNTO DE FUSION ENTRE 57°C Y 58°C, Y UN CONTENIDO DE PIRACLOSTROBINA POR LO MENOS DE 98% EN PESO. DICHAS MODIFICACIONES SE USAN PARA CONTROLAR HONGOS FITOPATOGENOS. EL PROCEDIMIENTO PARA PREPARALAS INCLUYE: a) PREPARAR UNA SUSPENSION DE O DISOLVER UNA FORMA DE PIRACLOSTROBINA DIFERENTE DE LA MODIFICACION IV, A UNA TEMPERATURA SUPERIOR A 50°C, EN UN SOLVENTE ORGANICO O MEZCLA SOLVENTE QUE COMPRENDE POR LO MENOS 70% EN VOLUMEN DE POR LO MENOS UN SOLVENTE ORGANICO TOTALMENTE MISCIBLE EN AGUA (ALCANOLES C1-C4, ACETONA Y BUTANONA) Y SI FUERA APROPIADO HASTA 30% EN VOLUMEN DE AGUA; Y, b) EFECTUAR LA CRISTALIZACION DE PIRACLOSTROBINA DURANTE POR LO MENOS 10 HORAS, Y/O EN PRESENCIA DE NUCLEOS CRISTALINOS DE MODIFICACION IV, ENFRIANDO LA SOLUCION O AGREGANDO AGUA A LA SOLUCION DE PIRACLOSTROBINA

    56.
    发明专利
    未知

    公开(公告)号：DE102005021056A1

    公开(公告)日：2006-11-09

    申请号：DE102005021056

    申请日：2005-05-06

    Applicant: BASF AG

    Inventor： OFTRING ALFRED ,  JUDAT BERND ,  RAULS MATTHIAS ,  FRIESE KATRIN

    IPC: C07C253/34 ,  C07C255/25

    Abstract: The invention relates to a process for isolating methylglycinenitrile-N,N-diacetonitrile (MGDN) from an aqueous emulsion which comprises MGDN and has an MGDN content of 3-50% by weight in a crystallizer, comprising the steps: (a) the aqueous emulsion is, starting from a temperature above the solidification point, cooled to a temperature below the solidification point, the cooling rate averaged over time not exceeding 5 K/h, until substantially the entirety of the emulsified MGDN has solidified, (b) the resulting aqueous suspension is cooled further and/or concentrated, and the cooling rate may be greater than in step (a).

    METHOD FOR PRODUCING PURE TRIOXANE
    58.
    发明专利
    METHOD FOR PRODUCING PURE TRIOXANE 未知

    公开(公告)号：PL374560A1

    公开(公告)日：2005-10-31

    申请号：PL37456003

    申请日：2003-05-13

    Applicant: BASF AG

    Inventor： FRIESE KATRIN ,  RAULS MATTHIAS ,  FREYHOF REINHARD ,  FRIESE THORSTEN ,  ARMBRUSTER HARALD ,  ZEINER HARTMUT ,  EGBERS GITTA ,  STROEFER ECKHARD ,  HECK LUDWIG ,  HILDENBRAND PETER

    IPC: C07D323/06

    Abstract: Production of trioxane by trimerization of formaldehyde in aqueous acid solution followed by separation of trioxane from a crude trioxane product mixture of trioxane, water and formaldehyde comprises: distillation of the crude trioxane; crystallization of the trioxane and; separation from the mother liquor followed by melting and distillation of other byproducts. A process for the production of trioxane by trimerization of formaldehyde in aqueous acid solution followed by separation of trioxane from a crude trioxane product mixture of trioxane, water and formaldehyde comprises: (a) distillation of the crude trioxane; (b) crystallization of the trioxane and; (c) separation from the mother liquor followed by; (d) melting and; (e) distillation of other byproducts.

    Method for producing pure trioxane
    59.
    发明专利
    Method for producing pure trioxane 未知

    公开(公告)号：AU2003232760A8

    公开(公告)日：2003-12-02

    申请号：AU2003232760

    申请日：2003-05-13

    Applicant: BASF AG

    Inventor： HECK LUDWIG ,  HILDENBRAND PETER ,  EGBERS GITTA ,  FREYHOF REINHARD ,  ARMBRUSTER HARALD ,  STROFER ECKHARD ,  FRIESE KATRIN ,  FRIESE THORSTEN ,  RAULS MATTHIAS ,  ZEINER HARTMUT

    IPC: C07D323/06

    Abstract: Production of trioxane by trimerization of formaldehyde in aqueous acid solution followed by separation of trioxane from a crude trioxane product mixture of trioxane, water and formaldehyde comprises: distillation of the crude trioxane; crystallization of the trioxane and; separation from the mother liquor followed by melting and distillation of other byproducts. A process for the production of trioxane by trimerization of formaldehyde in aqueous acid solution followed by separation of trioxane from a crude trioxane product mixture of trioxane, water and formaldehyde comprises: (a) distillation of the crude trioxane; (b) crystallization of the trioxane and; (c) separation from the mother liquor followed by; (d) melting and; (e) distillation of other byproducts.

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