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

    公开(公告)号:AU2008327967B2

    公开(公告)日:2013-03-14

    申请号:AU2008327967

    申请日:2008-11-17

    Applicant: BASF SE SIEMENS AG

    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.

    Processing rich ores using magnetic particles

    公开(公告)号:AU2008294826B2

    公开(公告)日:2013-02-07

    申请号:AU2008294826

    申请日:2008-09-01

    Applicant: BASF SE SIEMENS AG

    Abstract: The invention relates to a method for removing at least one first substance from a mixture that contains the at least one first substance and at least one second substance. Said method comprises the following steps: (A) contacting the mixture containing at least one first substance and at least one second substance with at least one surface-active substance, optionally in the presence of at least one dispersant, the surface-active substance binding to the at least one first substance, (B) optionally adding at least one dispersant to the mixture obtained in step (A) to obtain a dispersion, (C) treating the dispersion obtained in step (A) or (B) with at least one hydrophobic magnetic particle so that the at least one first substance to which the at least one surface-active substance is bound and the at least one magnetic particle are added thereto, (D) removing the addition product obtained in step (C) from the mixture by applying a magnetic field, (E) breaking down the removed addition product obtained in step (D) to obtain the at least one first substance and the at least one magnetic particle as separate entities.

    ПЕРЕРАБОТКА ЦЕННЫХ РУД С ПОМОЩЬЮ МАГНИТНЫХ ЧАСТИЦ

    公开(公告)号:EA017511B1

    公开(公告)日:2013-01-30

    申请号:EA201000407

    申请日:2008-09-01

    Applicant: BASF SE

    Abstract: Данноеизобретениеотноситсяк способувыделениякакминимумодногопервоговеществаизсмеси, содержащейэтокакминимумоднопервоевеществои какминимумодновтороевещество, которыйвключаетв себяследующиестадии: (A) приведениев контактсмеси, содержащейкакминимумоднопервоевеществои какминимумодновтороевеществокакминимумс однимповерхностно-активнымвеществом, принеобходимости, вприсутствиикакминимумодногодисперсионногосредства, причемповерхностно-активноевеществосвязываетсякакминимумс однимпервымвеществом; (B) принеобходимости, добавлениекакминимумодногодисперсионногосредствак смеси, полученнойнастадии (A), дляполучениядисперсиинеобходимойконцентрации; (C) обработкадисперсиисостадии (A) или (B) какминимумоднойгидрофобноймагнитнойчастицейтакимобразом, чтокакминимумк одномупервомувеществу, ккоторомуприсоединенокакминимумодноповерхностно-активноевещество, присоединяетсякакминимумоднамагнитнаячастица; (D) отделениепродуктаприсоединениясостадии (C) отсмесив результатеналожениямагнитногополя; (E) расщеплениеотделенногопродуктаприсоединениясостадии (D) дляполученияв раздельномвидекакминимумодногопервоговеществаи какминимумодноймагнитнойчастицы.

    MAGNETIC SEPARATION OF NONFERROUS METAL ORES BY MEANS OF MULTI-STAGE CONDITIONING

    公开(公告)号:ZA201107165B

    公开(公告)日:2012-12-27

    申请号:ZA201107165

    申请日:2011-09-30

    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 at least the following steps: (A) contacting of the mixture comprising at least one first material and at least one second material with at least one surface-active substance, if appropriate in the presence of at least one dispersion medium, with the surface-active substance binding to the at least one first material, (B) if appropriate, addition of at least one dispersion medium to the mixture obtained in step (A) in order to obtain a dispersion, (C) treatment of the dispersion from step (A) or (B) with at least one hydrophobic magnetic particle so that the at least one first material to which the at least one surface-active substance is bound and the at least one magnetic particle agglomerate, (D) separation of the agglomerate from step (C) from the mixture by application of a magnetic field in order to obtain the agglomerate and a mixture M1 depleted in agglomerate, and repetition of the steps (A) to (D).

    26.
    发明专利
    未知

    公开(公告)号:AT550101T

    公开(公告)日:2012-04-15

    申请号:AT08851798

    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.

    SEPARACION DE CU-MO.
    27.
    发明专利

    公开(公告)号:MX2011008882A

    公开(公告)日:2011-09-21

    申请号:MX2011008882

    申请日:2010-02-22

    Applicant: BASF SE

    Abstract: La presente invención se refiere a un procedimiento para separar por lo menos un primer material de una mezcla que comprende este primer material, que es por lo menos uno, por lo menos un segundo material y por lo menos un tercer material, que comprende por lo menos los siguientes pasos: (A) puesta en contacto de la mezcla que comprende por lo menos un primer material, por lo menos un segundo material y por lo menos un tercer material con por lo menos un hidrocarburo en una cantidad que va de 0,01 a 0,4% en peso, tomando como referencia la suma de la mezcla y por lo menos un hidrocarburo, en presencia o ausencia de por lo menos un medio de dispersión, (B) dado el caso, añadido de por lo menos un medio de dispersión a la mezcla obtenida en el paso (A) a fin de obtener una dispersión, (C) tratamiento de la dispersión del paso (A) o (B) con por lo menos una partícula magnética hidrófoba, de modo tal que por lo menos un- primer material y la partícula magnética, que es por lo menos una, se aglomeren, (D) separación del aducto contemplado en el paso (C) de la mezcla mediante aplicación de un campo magnético, (E) dado el caso, la disociación del aducto que ha sido separado en el paso (D) a fin de obtener por separado el primer material, que es por lo menos uno, y la partícula magnética, que es por lo menos una.

    CU-MO SEPARATION
    30.
    发明专利

    公开(公告)号:CA2753486A1

    公开(公告)日:2010-09-02

    申请号:CA2753486

    申请日:2010-02-22

    Applicant: BASF SE SIEMENS AG

    Abstract: The invention relates to a method for separating at least one material from a mixture comprising said at least one material, at least one second material and at least one third material, comprising at least the following steps: (A) bringing the mixture, comprising at least one first material, at least one second material and at least one third material, into contact with at least one hydrocarbon in a volume of 0.01 to 0.4 wt %, relative to the sum of the mixture and at least one hydrocarbon, in the presence of at least one dispersion agent as applicable;(B) adding of least one dispersion agent to the mixture obtained in step (A) as applicable in order to obtain a dispersion; (C) treating the dispersion from step (A) or (B) with at least one hydrophobic magnetic particle such that the at least one first material and the at least one magnetic particle accumulate (D) separating the accumulation product from step (C) from the mixture by creating a magnetic field; (E) splitting the separated accumulation product from step (D) as applicable in order to obtain the at least one first material and the at least one magnetic particle separately.

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