Method for ore enrichment by means of hydrophobic, solid surfaces

    公开(公告)号:AU2008277789B2

    公开(公告)日:2012-05-03

    申请号:AU2008277789

    申请日:2008-07-08

    Applicant: BASF SE

    Abstract: The present invention relates to a method for separating at least one hydrophobic agent from a mixture comprising said at least one hydrophobic agent and at least one hydrophilic agent, comprising the steps of: A) Producing a slurry or dispersion of the mixture to be treated in at least one suitable dispersion agent, B) bringing the slurry or dispersion of step (A) into contact with at least one solid, hydrophobic surface for attaching the at least one hydrophobic agent to be separated to the surface thereof, C) removing the at least one solid, hydrophobic surface, whereon the at least one hydrophobic agent from step (B) is bonded, from the slurry or dispersion, in which the at least one hydrophilic agent is present, and D) separating the at least one hydrophobic agent from the solid, hydrophobic surface. According to the invention, the method is used for separating (hydrophobic) sulfidic minerals, particularly copper sulfides, from mixtures having hydrophilic metal oxides (gang minerals). The solid surface can be, for example, a conveyor belt having a hydrophobic, structured surface.

    ENRIQUECIMIENTO DE MINERALES A PARTIR DE DESECHOS MINEROS

    公开(公告)号:PE20120524A1

    公开(公告)日:2012-04-28

    申请号:PE2011001204

    申请日:2009-12-09

    Applicant: BASF SE SIEMENS AG

    Abstract: REFERIDO 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, EN UNA CANTIDAD QUE VA DE 0,001 A 1,0% EN PESO, TOMANDO COMO REFERENCIA EL TOTAL DE LA MEZCLA, Y POR LO MENOS UN SEGUNDO MATERIAL, QUE COMPRENDE LOS PASOS SIGUIENTES: A) PUESTA DE CONTACTO DE LA MEZCLA QUE COMPRENDE POR LO MENOS UN PRIMER MATERIAL Y POR LO MENOS UN SEGUNDO MATERIAL CON POR LO MENOS UNA SUSTANCIA DE SUPERFICIE ACTIVA, DADO EL CASO EN PRESENCIA DE POR LO MENOS UN MEDIO DE DISPERSION, ENLAZANDOSE LA SUSTANCIA DE SUPERFICIE ACTIVA AL PRIMER MATERIAL, QUE ES POR LO MENOS UNO; B) DADO EL CASO, ANADIDO DE POR LO MENOS UN MEDIO DE DISPERSION A LA MEZCLA OBTENIDA EN EL PASO (A) CON EL FIN DE OBTENER UNA DISPERSION; c) TRATAMIENTO DE LA DISPERSION ORIGINADA EN EL PASO (A) O (B) CON POR LO MENOS UNA PARTICULA MAGNETICA HIDROFOBA, DE MODO QUE SE AGLOMEREN EL PRIMER MATERIAL, QUE ES POR LO MENOS UNO, AL QUE ESTA ENLAZADA LA SUSTANCIA DE SUPERFICIE ACTIVA, QUE ES POR LO MENOS UNA, Y LA PARTICULA MAGNETICA, QUE ES POR LO MENOS UNO; D) SEPARACION DE LA MEZCLA DEL AGLOMERADO ORIGINADO EN EL PASO (C) MEDIANTE APLICACION DE UN CAMPO MAGNETICO; E) DADO EL CASO, DISOCIACION DEL AGLOMERADO 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

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

    公开(公告)号:ZA201004287B

    公开(公告)日:2011-08-31

    申请号:ZA201004287

    申请日:2010-06-17

    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 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.

    ENRICHMENT OF ORES FROM MINE TAILINGS

    公开(公告)号:CA2746550A1

    公开(公告)日:2010-06-17

    申请号:CA2746550

    申请日:2009-12-09

    Applicant: BASF SE SIEMENS AG

    Abstract: The present invention relates to a method for separating at least one first substance from a mixture containing said at least one first substance in an amount of 0.001 to 1.0 wt %, based on the total mixture, and at least one second substance, comprising at least the following steps: (A) bringing the mixture into contact, (B) optionally adding at least one dispersant, (C) treating the dispersion with at least one hydrophobic magnetic particle, (D) separating the enrichment product from step (C) from the mixture by applying a magnetic field, (E) optionally splitting the separated enrichment product from step (D).

    Selective substance separation using modified magnetic particles

    公开(公告)号:AU2009272764A1

    公开(公告)日:2010-01-21

    申请号:AU2009272764

    申请日:2009-07-15

    Applicant: BASF SE SIEMENS AG

    Abstract: The present invention relates to a process of the invention 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) Contacting of at least one magnetic particle and at least one bifunctional molecule or an adduct of the two with the mixture comprising the at least one first material and at least one second material so that an adduct is formed from the at least one magnetic particle, the bifunctional compound of the general formula (I) and the at least one first material, (B) suspension of the adduct obtained in step (A) in a suitable suspension medium, (C) separation of the adduct present in the suspension from step (B) from the suspension by application of a magnetic field, (D) if appropriate, dissociation of the adduct separated off in step (C) in order to obtain the at least one first material. a corresponding adduct and the use of such an adduct for the separation of mixtures of materials.

    SEPARACION MAGNETICA DE SUSTANCIAS EN BASE A SUS DIFERENTES CARGAS DE SUPERFICIE

    公开(公告)号:PE20091296A1

    公开(公告)日:2009-09-30

    申请号:PE2008001950

    申请日:2008-11-19

    Applicant: BASF SE

    Abstract: REFERIDO A UN PROCEDIMIENTO PARA SEPARAR POR LO MENOS UN PRIMER MATERIAL DE UNA MEZCLA QUE COMPRENDE ESTE POR LO MENOS UN PRIMER MATERIAL SELECCIONADO ENTRE EL GRUPO QUE CONSISTE EN MINERALES SULFIDICOS, OXIDICOS Y/O QUE CONTIENEN CARBONATO, Y MEZCLAS DE LOS MISMOS; Y POR LO MENOS UN SEGUNDO MATERIAL SELECCIONADO ENTRE EL GRUPO QUE CONSISTE EN COMPUESTOS DE METALES OXIDICOS, HIDROXIDICOS, Y MEZCLAS DE LOS MISMOS. DICHO PROCEDIMIENTO COMPRENDE: A) PRODUCCION DE UNA SUSPENSION DE LA MEZCLA QUE COMPRENDE POR LO MENOS UN PRIMER Y UN SEGUNDO MATERIAL, Y POR LO MENOS UNA PARTICULA MAGNETICA EN UN MEDIO DE SUSPENSION ADECUADO; B) FIJACION DEL pH DE LA SUSPENSION OBTENIDA EN EL PASO (A) EN UN VALOR AL CUAL POR LO MENOS UN PRIMER MATERIAL Y LA POR LO MENOS UNA PARTICULA MAGNETICA TIENEN CARGAS DE SUPERFICIE OPUESTAS DE MODO QUE SE AGLOMERAN; C) SEPARACION DEL AGLOMERADO OBTENIDO EN EL PASO (B) DE LA SUSPENSION, POR APLICACION DE UN CAMPO MAGNETICO; Y D) DISOCIACION DEL AGLOMERADO SEPARADO EN EL PASO (C) FIJANDO EL pH EN UN VALOR AL CUAL POR LO MENOS UN PRIMER MATERIAL Y LA POR LO MENOS UNA PARTICULA MAGNETICA TIENEN LAS MISMAS CARGAS DE SUPERFICIE PARA OBTENER EL POR LO MENOS UN PRIMER MATERIAL

    PROCEDIMIENTO PARA EL ENRIQUECIMIENTO DE MINERALES POR MEDIO DE SUPERFICIES HIDROFOBAS

    公开(公告)号:PE20090667A1

    公开(公告)日:2009-07-04

    申请号:PE2008001201

    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

    PROCESS FOR THE BENEFICIATION OF ORES BY MEANS OF HYDROPHOBIC SURFACES

    公开(公告)号:CA2693902A1

    公开(公告)日:2009-01-22

    申请号:CA2693902

    申请日:2008-07-08

    Applicant: BASF SE

    Abstract: The present invention relates to a method for separating at least one hydrophobic agent from a mixture comprising said at least one hydrophobic agent and at least one hydrophilic agent, comprising the steps of: A) Producing a slurry or dispersion of the mixture to be treated in at least one suitable dispersion agent, B) bringing the slurry or dispersion of step (A) into contact with at least one solid, hydrophobic surface for attaching the at least one hydrophobic agent to be separated to the surface thereof, C) removing the at least one solid, hydrophobic surface, whereon the at least one hydrophobic agent from step (B) is bonded, from the slurry or dispersion, in which the at least one hydrophilic agent is present, and D) separating the at least one hydrophobic agent from the solid, hydrophobic surface. According to the invention, the method is used for separating (hydrophobic) sulfidic minerals, particularly copper sulfides, from mixtures having hydrophilic metal oxides (gang minerals). The solid surface can be, for example, a conveyor belt having a hydrophobic, structured surface.

    MAGNETIC SEPARATION OF PARTICLES INCLUDING ONE-STEP-CONDITIONING OF A PULP

    公开(公告)号:CA2869226C

    公开(公告)日:2020-03-10

    申请号:CA2869226

    申请日:2013-04-22

    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 contacting of the mixture comprising at least one first material and at least one second material with at least one magnetic particle, or contacting of the mixture comprising at least one first material and at least one second material with at least one magnetic particle and at least one surface-modifying substance at the same time, contacting of the mixture from step (A) with at least one surface-modifying substance, if this has not been done in step (A), so that the at least one first material, the at least one surface-modifying substance and the at least one magnetic particle become attached to one another, and separation of the addition product by application of a magnetic field.

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