Abstract: The present invention relates to composite particles, coated particles, a method of producing composite particles, a ligand-containing solid phase carrier, and a method of detecting or separating a target substance in a sample. The above described composite particles each contains an organic polymer and inorganic nanoparticles, wherein the content of the inorganic nanoparticles in the composite particles is more than 80% by mass, and wherein the composite particles have a volume average particle size of from 10 to 1,000 nm.

Abstract: A magnetizable abrasive particle comprises a ceramic body having an outer surface and a magnetizable layer disposed on a portion, but not the entirety, of the outer surface. The ceramic body comprises a platelet having two opposed major facets connected to each other by a plurality of side facets. The magnetizable layer completely covers one of the two opposed major facets, and the magnetizable layer has a magnetic dipole oriented perpendicular or parallel to the facet which it completely covers. A plurality of the magnetizable abrasive particles, and abrasive articles including them are also disclosed. Methods of making the foregoing are also disclosed.

Abstract: A synthetic bead for use in mineral separation is described. The synthetic bead has a surface made of a synthetic material such as polymer and the synthetic material is functionalized with molecules having a functional group for attaching mineral particles to the surface in a separation process. The synthetic beads can be placed in flotation cell containing a mixture of water, valuable material and unwanted material or in a pipeline where the mixture is transported from one location to another. The enriched synthetic beads carrying the mineral particles are separated from the unwanted materials in the mixture. The mineral particles are then released from the synthetic beads by means of low pH treatment, ultrasonic agitation, thermal or electromagnetic treatment.

Abstract: A method, process or system for producing an iron oxide concentrate from a treatment slurry of a low grade mineral assemblage includes mixing a flocculant with the treatment slurry and dewatering the treatment slurry before passing the treatment slurry through a wet high intensity magnetic separator of a type that employs a flux amplifying matrix (i.e., a WHIMS-FAM device) and recovering an iron oxide concentrate fraction and a tailings fraction from the WHIMS-FAM device. Another method, process or system for producing an iron oxide concentrate includes passing the treatment slurry through a WHIMS-FAM device and recovering an iron oxide concentrate fraction slurry and a tailings fraction slurry from the WHIMS-FAM device; mixing a flocculant with the concentrate fraction slurry and dewatering the concentrate slurry to provide a thickened concentrate slurry before filtering the thickened concentrate slurry to provide a concentrate filter cake.

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.

Abstract: An apparatus for separating magnetic particles from a dispersion that includes magnetic particles and non-magnetic particles, the apparatus comprising; at least one arcuate canal forming 90 to 350° of a circular arc through which the dispersion flows, at least one magnet that is movable adjacent to the canal and which forces the magnetic particles into at least one first outlet, and at least one second outlet through which the non-magnetic particles exit the canal, the apparatus further comprising treating the dispersion, or a part of the dispersion, with a hydrophilic liquid, and treating the dispersion, or a part of the dispersion, with a hydrophobic liquid.

Abstract: A device (10) is provided for separating magnetic or magnetizable particles from a liquid by using a magnetic field. The device includes a head piece (3) with one or more magnetizable bars (4) which is/are permanently or detachably connected with the head piece (3), as well as one or more permanent magnets (1) whose relative position with respect to the head piece can be changed by a predeterminable movement of the magnet(s) or/and by a predeterminable movement of the head piece.

Abstract: A method obtains non-magnetic ores from a suspension containing ore particle-magnetic particle agglomerates. The method involves dividing ore particle-magnetic particle agglomerates precipitated from the suspension into a mixture of separately present ore particles and magnet particles, separating the magnetic particles from the mixture, forming a first mass flow containing magnetic particles and a second mass flow containing ore particles. At least one information describing a measure of the content of ore particles in the first mass flow and being associated with the first mass flow and/or at least one information describing a measure of the portion of magnetic particles in the second mass flow and being associated with the second mass flow are determined in order to determine the efficiency of at least one of the separation processes described above.

Abstract: A method obtains non-magnetic ores from a suspension-like mass flow containing non-magnetic ore particles. The method involves mixing the mass flow with magnetic particles in a mixing device and forming ore particle-magnetic particle agglomerates, feeding the mass flow as a separator feed flow to a magnetic separator for separating the ore particle-magnetic particle agglomerates from the mass flow, forming a separator concentrate flow containing ore particle-magnetic particle agglomerates and a separator residual flow containing the remaining constituents of the mass flow, and separating the ore particles from the ore particle-magnetic particle agglomerates contained in the separator concentrate flow.

Abstract: A method of separating a powder mixture is disclosed. A first magnetic field is applied to the powder mixture which may contains a non-magnetic metal powder and a contaminant powder. A field strength of the first magnetic field magnetizes the non-magnetic metal powder and leaves the contaminant powder non-magnetized. A second magnetic field is applied to the powder mixture to separate the magnetized metal powder from the non-magnetized contaminant powder.

Abstract: The processing method for a mixture according to the present invention is a method for processing a mixture having first particles made of a magnetic material or a nonmagnetic material and second particles made of a magnetic material or a nonmagnetic material wherein the second particles are mixed in a fluid medium containing the first particles, and comprises a dispersion step of dispersing aggregates of the first particles and the second particles present in the mixture, and a magnetic separation step of providing the first particles and second particles with a magnetic force a of different magnitudes by applying a magnetic field to the mixture in parallel with or after the dispersion step, thereby separating the first particles and the second particles from each other.

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, at least one second material and magnetic particles, which comprises the following steps (A) at least partial removal of the magnetic particles by application of a magnetic field gradient, optionally in the presence of at least one dispersing medium, to give a mixture comprising at least one first material and at least one second material and a reduced amount of magnetic particles, (B) contacting of the mixture comprising at least one first material and at least one second material from step (A) with magnetic particles so that the at least one first material and the magnetic particles agglomerate, (C) separation of the agglomeration product from the mixture from step (B) by application of a magnetic field gradient and (D) dissociation of the agglomeration product separated off in step (C) in order to obtain the at least one first material and the magnetic particles

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, at least one second material and at least one third material, which comprises at least the following steps: (A) contacting of the mixture comprising at least one first material, at least one second material and at least one third material with at least one hydrocarbon in an amount of from 0.01 to 0.

Abstract: Methods, systems, and apparatus are provided for automated isolation of selected analytes, to which magnetically-responsive solid supports are bound, from other components of a sample. An apparatus for performing an automated magnetic separation procedure includes a mechanism for effecting linear movement of a magnet between operative and non-operative positions with respect to a receptacle device. A receptacle holding station within which a receptacle device may be temporarily stored prior to moving the receptacle to the apparatus for performing magnetic separation includes magnets for applying a magnetic field to the receptacle device held therein, thereby drawing at least a proton of the magnetically-responsive solid supports out of suspension before the receptacle device is moved to the magnetic separation station. An automated receptacle transport mechanism moves the receptacle devices between the apparatus for performing magnetic separation and the receptacle holding station.

Abstract: A method of separating a powder mixture is disclosed. A first magnetic field is applied to the powder mixture which may contains a non-magnetic metal powder and a contaminant powder. A field strength of the first magnetic field magnetizes the non-magnetic metal powder and leaves the contaminant powder non-magnetized. A second magnetic field is applied to the powder mixture to separate the magnetized metal powder from the non-magnetized contaminant powder.

Abstract: A magnetic reagent contains magnetic microparticles and a compound of the formula (I) as defined herein. The magnetic reagent may be used in a magnetic separation process for the removal of impurities from mineral substrates.

Abstract: A method for producing a metallic carbon nanotube, by which a dispersion with a high concentration can be obtained. Specifically disclosed is a method for producing a metallic carbon nanotube, which comprises a fullerene addition step wherein fullerenes are added into a carbon nanotube-containing solution in which metallic carbon nanotubes and semiconductive carbon nanotubes are mixed, and a taking-out step wherein carbon nanotubes dispersed by the added fullerenes are taken out.

Abstract: The present invention is concerned with a system for sorting target particles from a flow of particles. The system has a microscope, a light source, a CCD camera, microfluidic chip device with microfluidic channels, a detection apparatus for detecting the target particles with predefined specific features, a response generating apparatus for generating a signal in response to the detection of the target particles, and an optical tweezing system for controlling movement of optical traps, the optical tweezing system is operably linked to the response signal.

Abstract: In a method for separating rich ore particles from agglomerates which contain said rich ore particles and magnetizable particles attached thereto, especially Fe3O4, in the course of a process for obtaining rich ore from crude ore, in which agglomerates the rich ore particle and the magnetizable particle are bonded by organic molecular chains, the agglomerates are contained in a suspension containing a carrier fluid and are broken up by an input of mechanical energy so that an agent contained in the suspension and decomposing the exposed, hydrophobic molecular chains can act upon the molecular chains. The Fe-containing oxide components are separated from the suspension in a magnetic separation process.

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.

Abstract: A method for magnetic ore separation and/or dressing is provided, in which metalliferous recoverable materials are separated from conveyed metalliferous ore rock.

Abstract: A method for classifying articles comprising magnetocalorically active material according to magnetic transition temperature comprises providing a source of articles to be classified, the source comprising articles comprising magnetocalorically active materials having differing magnetic transition temperatures, sequentially applying a magnetic field at differing temperatures to the source, the magnetic field being sufficient to exert a magnetic force on the source that is greater than the inertia of a fraction of the articles causing the fraction of the articles to move and produce an article fraction, and collecting the article fraction at each temperature to provide a plurality of separate article fractions of differing magnetic transition temperature, thus classifying the articles comprising magnetocalorically active material according to magnetic transition temperature.

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 at least one first material and at least one second material with at least one magnetic particle in the presence of at least one dispersion medium so that the at least one first material and the at least one magnetic particle agglomerate, (B) if appropriate, addition of further dispersion medium to the dispersion obtained in step (A), (C) separation of the agglomerate from step (A) or (B) from the mixture by application of a magnetic field, (D) and dissociation of the agglomerate separated off in step (C) in order to obtain the at least one first material and the at least one magnetic particle separately, with an energy input of at least 10 kW/m3 being introduced into the dispersion in step (A).

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 using magnetic particles with which the at least one first material agglomerates.

Abstract: Device and methods for use of these devices to manipulate substantially non-magnetic particles dispersed inside a magnetic fluid by employing a changeable pattern of local magnetic field maxima and minima are provided.

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 suspensio

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 in an amount of from 0.001 to 1.

Abstract: The present invention relates to an agglomerate of at least one particle P which is hydrophobicized on the surface with at least one first surface-active substance and at least one magnetic particle MP which is hydrophobicized on the surface with at least one second surface-active substance, a process for producing it and also the use of these agglomerates.

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.

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 th

Abstract: In a device and a method for extracting non-magnetic ores from a pulp comprising non-magnetic ore particles and having a solid fraction of at least 30 mass percent, the pulp flows continuously through a reactor in the direction of flow and magnetic or magnetizable magnet particles that form ore magnetic particle agglomerations with the non-magnetic ore particles are added to said pulp. The ore magnetic particle agglomerations are moved by a magnetic field into an accumulation range of the reactor, and are then discharged out of reactor range and separated into ore and magnetic particles. In a device and a method, the separated magnetic particles are treated, in particular hydrophobized, such that during a new interaction with non-magnetic ore particles, new ore magnetic particle agglomerations are formed. Accordingly, a high yield of ores can be obtained and the mine can be operated in an economical and environmentally friendly manner.

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.

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 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 dispersant, resulting in the surface-active substance becoming attached to the at least one first material, (B) if appropriate, addition of at least one dispersant to the mixture obtained in step (A) to give a dispersion having a suitable concentration, (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 become attached to one another, (D) separation of the addition product from step (C) from the mixture by application of

Abstract: Various systems, methods, and devices are provided for focusing particles suspended within a moving fluid into one or more localized stream lines. The system can include a substrate and at least one channel provided on the substrate having an inlet and an outlet. The system can further include a fluid moving along the channel in a laminar flow having suspended particles and a pumping element driving the laminar flow of the fluid. The fluid, the channel, and the pumping element can be configured to cause inertial forces to act on the particles and to focus the particles into one or more stream lines.

Abstract: Methods, systems, and apparatus are provided for automated isolation of selected analytes, to which magnetically-responsive solid supports are bound, from other components of a sample. An apparatus for performing an automated magnetic separation procedure includes a mechanism for effecting linear movement of a magnet between operative and non-operative positions with respect to a receptacle device. A receptacle holding station within which a receptacle device may be temporarily stored prior to moving the receptacle to the apparatus for performing magnetic separation includes magnets for applying a magnetic field to the receptacle device held therein, thereby drawing at least a proton of the magnetically-responsive solid supports out of suspension before the receptacle device is moved to the magnetic separation station. An automated receptacle transport mechanism moves the receptacle devices between the apparatus for performing magnetic separation and the receptacle holding station.

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 at least one first material and at least one second material with at least one magnetic particle in the presence of at least one dispersion medium so that the at least one first material and the at least one magnetic particle agglomerate, (B) if appropriate, addition of further dispersion medium to the dispersion obtained in step (A), (C) separation of the agglomerate from step (A) or (B) from the mixture by application of a magnetic field, (D) and dissociation of the agglomerate separated off in step (C) in order to obtain the at least one first material and the at least one magnetic particle separately, with an energy input of at least 10 kW/m3 being introduced into the dispersion in step (A).

Abstract: The invention provides core-shell magnetic particles comprising a magnetic core and a functional shell, methods for making same, methods of separation using same, methods for using same, and devices comprising same. The particles and methods of the invention are useful for targeting and removing substances of interest that may be found in complex mixtures.

Abstract: A method for separating mixtures of solid materials includes incorporating a ferromagnetic particulate material into a mixture of solid materials and, after the incorporating step, separating the mixture of solid materials into at least two groups based on the magnetic and frictional properties of the different components of the mixture of solid materials. The ferromagnetic particulate material can differentially incorporate into or adhere to different components of the mixture of solid materials. The different components of the mixture have different frictional properties and, after the incorporating step, the different components have different magnetic properties.

Abstract: Methods and compositions for removing a contaminant from its environment. The method includes forming a magnetic composition comprising the contaminant and an amphiphilic substance, and applying a magnetic field to the magnetic composition so as to separate the magnetic composition from the environment. One composition includes a micelle array confined in a magnetic mesoporous framework. Another composition is formed by adhering an amphiphilic material comprising functional surface groups to a contaminant, then interacting a magnetic material with the functional surface groups of the amphiphilic material. In various versions, the contaminant can be a hydrophobic organic compound, or a fullerene-related nanoparticle. The methods can also be used to purify hydrophobic organic compounds or fullerene-related nanoparticles.

Abstract: The present application discloses a process for the high throughput separation of at least one distinct biological material from a sample using magnetic tags and a magnetic separation set up capable of processing at least about 106 units/second. A magnetic field gradient is used to deflect target material bearing a magnet tag from one laminar flow stream to another so that the magnetically tagged target material exits a separation chamber via a different outlet than the rest of the sample. The process is applicable to isolating several distinct biological materials by directing each via magnetic deflection to its own unique outlet. The application also discloses a system for performing the process and a kit that includes the system and the magnetic tags.

Abstract: The present invention relates to an agglomerate of at least one particle P which is hydrophobicized on the surface with at least one first surface-active substance and at least one magnetic particle MP which is hydrophobicized on the surface with at least one second surface-active substance, a process for producing it and also the use of these agglomerates.

Abstract: A process for the beneficiation of carbonate mineral substrates by magnetic separation is defined herein wherein a phosphorus or nitrogen containing organic compound or reagent and a plurality of magnetic particles are intermixed with a carbonate containing mineral substrate, a magnetic field is applied to the mixture and a value mineral is thereby separated from a non-value mineral.

Abstract: A method for separating mixtures of solid materials includes incorporating a ferromagnetic particulate material into a mixture of solid materials and, after the incorporating step, separating the mixture of solid materials into at least two groups based on the magnetic and frictional properties of the different components of the mixture of solid materials. The ferromagnetic particulate material can differentially incorporate into or adhere to different components of the mixture of solid materials. The different components of the mixture have different frictional properties and, after the incorporating step, the different components have different magnetic properties.

Abstract: A magnetic reagent contains magnetic microparticles and a compound of the formula (I) as defined herein. The magnetic reagent may be used in a magnetic separation process for the removal of impurities from mineral substrates.

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 in an amount of from 0.001 to 1.

Abstract: Disclosed is a system to mechanically destroy printer toner cartridges and reclaim their constituent materials under a water shielded environment while providing a safer and more environmentally friendly recycling system. The present invention is an economical system that provides greater protection from possible fire or explosion and releases less irritating or possibly harmful airborne contamination than the currently available systems.

Abstract: A system for sorting and trapping magnetic target species includes a microfluidic chamber designed to receive and then temporarily hold magnetic particles in place within the module. A pre-processing module may mix a sample and magnetic particles to cause certain species in the sample to be labeled. The micorfluidic chamber may include a mechanism to move magnetic particles within the chamber. A post-processing module or the microfluidic chamber may be used to separate the labeled species from the magnetic particles by adding a release reagent. The magnetic particles and/or their payloads may be released and separately collected at an outlet of the chamber or the post-processing module.

Abstract: A process of sorting metallic single wall carbon nanotubes (SWNTs) from semiconducting types by disposing the SWNTs in a dilute fluid, exposing the SWNTs to a dipole-inducing magnetic field which induces magnetic dipoles in the SWNTs so that a strength of a dipole depends on a conductivity of the SWNT containing the dipole, orienting the metallic SWNTs, and exposing the SWNTs to a magnetic field with a spatial gradient so that the oriented metallic SWNTs drift in the magnetic field gradient and thereby becomes spatially separated from the semiconducting SWNTs. An apparatus for the process of sorting SWNTs is disclosed.

Abstract: A process of sorting metallic single wall carbon nanotubes (SWNTs) from semiconducting types by disposing the SWNTs in a dilute fluid, exposing the SWNTs to a dipole-inducing magnetic field which induces magnetic dipoles in the SWNTs so that a strength of a dipole depends on a conductivity of the SWNT containing the dipole, orienting the metallic SWNTs, and exposing the SWNTs to a magnetic field with a spatial gradient so that the oriented metallic SWNTs drift in the magnetic field gradient and thereby becomes spatially separated from the semiconducting SWNTs. An apparatus for the process of sorting SWNTs is disclosed.

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 using magnetic particles with which the at least one first material agglomerates.