32.
    发明专利
    未知

    公开(公告)号:DE50312525D1

    公开(公告)日:2010-04-29

    申请号:DE50312525

    申请日:2003-07-10

    Applicant: BASF SE

    Abstract: The invention relates to a process for preparing butadiene from n-butane comprising the steps (A) providing an n-butane-containing feed gas stream, (B) feeding the n-butane-containing feed gas stream into a first dehydrogenation zone and nonoxidatively catalytically dehydrogenating n-butane to 1-butene, 2-butene and optionally butadiene to obtain a first product gas stream comprising n-butane, 1-butene and 2-butene, with or without butadiene and secondary components, (C) feeding the first product gas stream comprising n-butane, 1-butene and 2-butene, with or without butadiene and secondary components, into a second dehydrogenation zone and oxidatively dehydrogenating 1-butene and 2-butene to butadiene to give a second product gas stream comprising butadiene, n-butane and steam, with or without secondary components, (D) recovering butadiene from the second product gas stream.

    Inorganic particles comprising an organic coating that can be hydrophilically/hydrophobically temperature controlled

    公开(公告)号:AU2009272672A1

    公开(公告)日:2010-01-21

    申请号:AU2009272672

    申请日:2009-07-17

    Applicant: BASF SE SIEMENS AG

    Abstract: The present invention relates to a process for separating at least one first material from a mixture comprising this at least one first material and at least one second material, which comprises the following steps: (A) contacting of the mixture comprising the at least one first material and at least one second material with at least one selective hydrophobicizing agent in the presence of a suspension medium so that an adduct is formed from the at least one hydrophobicizing agent and the at least one first material but not with the at least one second material, (B) contacting of the adduct from step (A) with at least one magnetic particle which is functionalized on the surface with at least one polymeric compound having a transition temperature LCST (lower critical solution temperature) at a temperature at which the polymeric compound has hydrophobic character so that the adduct from step (A) and the at least one functionalized magnetic particle agglomerate, (C) if appropriate addition of further suspension medium to the mixture obtained in step (B), (D) separation of the agglomerate present in the suspension from step (B) or (C) from the suspension by application of a magnetic field, (E) dissociation of the agglomerate separated off in step (D) by setting of a temperature at which the polymeric compound has hydrophilic character in order to obtain the at least one first material.

    NANOPARTICULATE COPPER COMPOUNDS
    34.
    发明专利

    公开(公告)号:CA2730600A1

    公开(公告)日:2010-01-14

    申请号:CA2730600

    申请日:2009-07-02

    Applicant: BASF SE

    Abstract: The present invention relates to processes for producing surface-modified nanoparticulate copper compounds and also for producing aqueous suspensions containing surface-modified nanoparticulate copper compounds. The invention further relates to the surface-modified nanoparticulate copper compounds which can be obtained by these processes and aqueous suspensions of these copper compounds and also their use as antimicrobial agent or catalyst.

    BENEFICIACION DE MINERALES POR MEDIO DE PARTICULAS MAGNETICAS

    公开(公告)号:PE20090869A1

    公开(公告)日:2009-08-08

    申请号:PE2008001542

    申请日:2008-09-02

    Applicant: BASF SE

    Abstract: SE REFIERE A UN PROCEDIMIENTO PARA SEPARAR POR LO MENOS UN PRIMER MATERIAL DE UNA MEZCLA QUE COMPRENDE ESE PRIMER MATERIAL, QUE ES POR LO MENOS UNO, Y POR LO MENOS UN SEGUNDO MATERIAL, QUE COMPRENDE: A) PONER EN CONTACTO LA MEZCLA QUE COMPRENDE POR LO MENOS UN PRIMER MATERIAL Y POR LO MENOS UN SEGUNDO MATERIAL CON POR LO MENOS UNA SUSTANCIA SUPERFICIEACTIVA, DADO EL CASO, EN PRESENCIA DE POR LO MENOS UN DISPERSANTE, LO QUE DA POR RESULTADO QUE LA SUSTANCIA SUPERFICIEACTIVA SE UNA AL PRIMER MATERIAL, QUE ES POR LO MENOS UNO; B) DADO EL CASO, ADICIONAR POR LO MENOS UN DISPERSANTE A LA MEZCLA OBTENIDA EN EL PASO (A) PARA DAR UNA DISPERSION QUE TENGA UNA CONCENTRACION APROPIADA; C) TRATAMIENTO DE DISPERSION DEL PASO (A) O (B) CON POR LO MENOS UNA PARTICULA MAGNETICA HIDROFOBA DE MODO TAL QUE EL PRIMER MATERIAL, QUE ES POR LO MENOS UNO, AL CUAL SE UNE LA SUSTANCIA SUPERFICIEACTIVA, QUE ES POR LO MENOS UNA, Y LA PARTICULA MAGNETICA, QUE ES POR LO MENOS UNA, QUEDEN UNIDOS EL UNO CON EL OTRO; D) SEPARACION DEL PRODUCTO DE ADICION DEL PASO (C) DE LA MEZCLA POR APLICACION DE UN CAMPO MAGNETICO; Y E) DESDOBLAMIENTO DEL PRODUCTO DE ADICION QUE HA SIDO SEPARADO EN EL PASO (D) CON EL FIN DE OBTENER POR SEPARADO EL PRIMER MATERIAL, QUE ES POR LO MENOS UNO, Y LA PARTICULA MAGNETICA QUE ES POR LO MENOS UNA

    PROCEDIMIENTO PARA EL ENRIQUECIMIENTO DE MINERALES POR MEDIO DE SUPERFICIES HIDROFOBAS

    公开(公告)号:PE06672009A1

    公开(公告)日:2009-07-04

    申请号:PE0012012008

    申请日:2008-07-16

    Applicant: BASF SE

    Abstract: SE REFIERE A UN PROCEDIMIENTO PARA SEPARAR POR LO MENOS UNA SUSTANCIA HIDROFOBA DE UNA MEZCLA QUE COMPRENDE ADEMAS, POR LO MENOS UNA SUSTANCIA HIDROFILA, EL CUAL COMPRENDE: A) PREPARAR UNA SUSPENSION O DISPERSION DE LA MEZCLA QUE HA DE SER TRATADA EN POR LO MENOS UN AGENTE DE DISPERSION APROPIADO; B) PONER EN CONTACTO LA SUSPENSION O DISPERSION DEL PASO (A) CON POR LO MENOS UNA SUPERFICIE HIDROFOBA SOLIDA PARA LIGAR A ESTA LA SUSTANCIA HIDROFOBA QUE HA DE SEPARARSE Y QUE ES POR LO MENOS UNA; C) ELIMINAR LA SUPERFICIE HIDROFOBA SOLIDA, QUE ES POR LO MENOS UNA, Y A LA QUE ESTA LIGADA UNA SUSTANCIA HIDROFOBA, QUE ES POR LO MENOS UNA, DEL PASO (B), DE LA SUSPENSION O DISPERSION EN LA CUAL ESTA CONTENIDA LA SUSTANCIA HIDROFILA, QUE ES POR LO MENOS UNA; Y D) SEPARAR LA SUSTANCIA HIDROFOBA, QUE ES POR LO MENOS UNA, DE LA SUPERFICIE HIDROFOBA SOLIDA

    MAGNETIC SEPARATION OF SUBSTANCES ON THE BASIS OF DIFFERENT SURFACE CHARGES THEREOF

    公开(公告)号:CA2705881A1

    公开(公告)日:2009-05-28

    申请号:CA2705881

    申请日:2008-11-17

    Applicant: BASF SE

    Abstract: The invention relates to a method for separating at least one first material from a mixture containing said at least one first material and at least one second material. Said method comprises the following steps: (A) a suspension of the mixture containing at least one first material and at least one second material and at least one magnetic particle is produced in a suitable suspending agent; (B) the pH of the suspension obtained in step (A) is adjusted to a value at which the at least one first material and the at least one magnetic particle have opposite surface charges such that the same agglomerate; (C) the agglomerate obtained in step (B) is separated by applying a magnetic field; and (D) the agglomerate separated in step (C) is split by adjusting the pH to a value at which the at least one first material and the at least one magnetic particle have identical surface charges in order to obtain the at least one first material.

    Magnetic separation of substances on the basis of the different surface charges thereof

    公开(公告)号:AU2008327967A1

    公开(公告)日:2009-05-28

    申请号:AU2008327967

    申请日:2008-11-17

    Applicant: BASF SE

    Abstract: The present invention relates to a process for separating at least one first material from a mixture comprising this at least one first material and at least one second material, which comprises the steps: (A) production of a suspension of the mixture comprising at least one first material and at least one second material and at least one magnetic particle in a suitable suspension medium, (B) setting of the pH of the suspension obtained in step (A) to a value at which the at least one first material and the at least one magnetic particle bear opposite surface charges so that these agglomerate, (C) separation of the agglomerate obtained in step (B) from the suspension by application of a magnetic field and (D) dissociation of the agglomerate separated off in step (C) by setting of the pH to a value at which the at least one first material and the at least one magnetic particle bear the same surface charges in order to obtain the at least one first material.

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