Abstract: An extraction cell (10) for a centrifugal partition chromatograph (20), which extraction cell (10) contains an extraction chamber (12) delimited by a cell wall (12c) and accommodates the liquid stationary phase (30á), and it has a liquid inlet opening (13b) and a liquid outlet opening (13k) serving to let in and out the liquid mobile phase (30m) to be made to flow through the extraction cell (10). The extraction cell (10) contains an extraction chamber (12) established as a tubular body, and a liquid inlet plug (16b) that includes a liquid inlet opening (13b) and a liquid outlet plug (16k) that includes a liquid outlet opening (13k), that can be attached to the extraction chamber (12) and an insert (14) through which liquids may pass is positioned in the extraction chamber (12) between the liquid inlet opening (13b) and the liquid outlet opening (13k).

Abstract: The present disclosure relates to a method for labeling particles with magnetic particles and an apparatus for labeling particles with magnetic particles.

Abstract: The invention generally relates to conducting an assay on a sample that isolates a pathogen from the sample and allows for analysis of the pathogen with minimal (i.e., at most 24 hrs of culturing) or no culturing of the pathogen. In certain embodiments, the invention provides methods for identifying a pathogen from a sample that involve obtaining a sample including a pathogen, conducting an assay that isolates the pathogen from the sample, culturing the isolated pathogen for at most about 24 hrs, and analyzing the pathogen.

Abstract: The current invention relates to the method and apparatus to magnetically separate biological entities with magnetic labels from a fluid sample. The claimed methods separate biological entities with magnetic labels by using a magnetic device. The claimed methods further include processes to dissociate biological entities magnetic conglomerate after magnetic separation.

Abstract: A magnetic separation device includes magnetic separation units in each of which a flow direction of raw water in a separation vessel is set to the same direction as a rotation direction of a magnetic drum. In the left-side magnetic separation unit, a raw water feeding channel is connected to the left side of the separation vessel, so that the raw water flows from left to right in the separation vessel and the treated water flows out of a discharge channel. The magnetic drum rotates in a counter clockwise direction. In the right-side magnetic separation unit, the raw water feeding channel is connected to the right side of the separation vessel, so that the raw water flows from right to left in the separation vessel and the treated water flows out of the discharge channel. The magnetic drum also rotates in the clockwise direction.

Abstract: A magnetic separation device has a membrane having a plurality of pores, a magnetically soft material layer disposed on the membrane, and a passivation layer disposed on the magnetically soft material layer. The magnetic separation device may be part of a microfluidic device having a lateral flow channel and a vertical flow magnetic separation filter. The magnetic separation device may be used to separate magnetically tagged particles, such as cells.

Abstract: Provided are an apparatus and a method for automatically analyzing biological samples capable of performing the entire processes of dissolving the biological samples in protease and cell lysate to dissolve a nucleic acid in a solution, attaching the nucleic acid to magnetic particles, finally washing the magnetic particle to which the nucleic acid is attached with an organic solvent, drying the magnetic particles using a vacuum pump, eluting the target nucleic acid attached to the magnetic particles in an aqueous solution, adding and mixing the eluted target nucleic acid into a vessel containing a nucleic acid amplification reagent, real-time detecting amplification by irradiating excitation light to a reactor simultaneously with regulating a temperature to perform amplification to measure fluorescence, inactivating an amplified product using an ultraviolet lamp after amplification, obtaining an image through electrophoresis, and analyzing a molecular weight in a single apparatus.

Abstract: The invention includes methods for isolating circulating multiple myeloma cells as well as method of treating patients suspected of having diseases of abnormal plasma cells.

Abstract: A genre of media is presented for use with a reactor vessel and for the purpose of immobilizing small particles, often catalytic in nature. The media can include a number of ferromagnetic active wafers stacked together and separated by non-ferromagnetic separator portions, such that when in the presence of a magnetic field and magnetic-particle-containing fluid, at least some of the gaps between active wafers captures and suspends magnetic particles.

Abstract: A sheet-feeder system for multiple feeding of magnetizable sheets from a stack through a portable magnetizer designed for on-site use, enclosed in a portable case which is hand-carryable. A sheet advancer advances single magnetizable sheets from the stack in a stack positioner. The sheet advancer includes a single-sheet separator configured to separate single magnetizable sheets from the stack during advancement. Magnetic attraction between a magnetizable sheet and a magnetic field generated by a sheet magnetizer configured to permanently magnetize single magnetizable sheets as they are advanced by the sheet advancer assists the sheet advancer to advance the single magnetizable sheets from the stack through the sheet magnetizer.

Abstract: A suspension magnet assembly (10) having a magnet (24) with an arcuate lower surface, and a collector (27) movable from adjacent the magnet (24) to a position spaced from the magnet (24) to provide for the removal of collected material (14) from the assembly (10).

Abstract: A method and system is used to process slag material to yield by-products including a finished iron rich product and a finished low iron fines product. The by-products may include a finished high iron product and a finished medium iron product. The method and system include size classifying the material into a plurality of sized groups prior to using magnetic separation to separate at least one of the sized groups into two portions having differing magnetic susceptibilities. The method and system may include more than one phase of size classifying the material into a plurality of sized groups and using magnetic separation to separate at least one of the sized groups into portions, where the average size of the material remaining after one phase is reduced prior to the subsequent phase.

Abstract: A modular magnetic separation apparatus set has a processing capacity increased by increasing the number of the unit modules of the magnetic separation apparatus set, being suitable for all enrichment processes of magnetic minerals. One modular unit is defined with a separation wheel and its two neighboring magnet-concentration cores and two corresponding excitation coils and a charging hopper and a discharging hopper of magnetic materials, each unit being combined of multiple identical modular units. The modular magnetic separation apparatus solves the conflicts between the transportation of apparatus after the enlargement and the height and width restrictions on general roads, including more reasonable conditions for separate transportation.

Abstract: The disclosure relates generally to recovering bond coat materials and barrier coat materials from co-mingled mixtures of bond coat and barrier coat materials (e.g., plasma overspray waste), and from mixtures of co-mingled bond coat and barrier coat materials stripped from a substrate. The disclosure also relates to recovering rare earth elements (e.g., yttrium) from a barrier coat of the co-mingled plasma overspray waste or mixture of co-mingled bond coat and barrier coat materials stripped from the substrate.

Abstract: A magnetic drum separator for the separation of ferrous and non-ferrous materials from a material stream that comprises an outer shell that is rotatable by a drive mechanism. The outer shell has a tubular length, a circular cross-section, a traction plate is joined to the outer shell, the traction plate has a traction element. In another embodiment the outer shell has a tubular length, a circular cross-section, and a integral traction element. The traction elements could be a series of negative indentations, raised bumps, perforations, serrated teeth, protruding ridges, segmented protruding ridges, minor cleats, or segmented minor cleats.

Abstract: A vertical ring high gradient magnetic separator comprises an exciting winding coil (11) and a coil casing (12), wherein the winding coil (11) is immerged in coolant in the coil casing (12), the winding coil (11) is of a multi-layer structure, and an insulating member is provided between each layer or a plurality of layers of the winding coil (11) to form gaps through which the coolant passes. The winding coil of the vertical ring high gradient magnetic separator has a rapid heat dissipation capability in the coolant, which can ensure the winding coil maintaining a lower temperature during operation, thereby obtaining a higher magnetic field strength.

Abstract: Since Thomas Edison invented the magnetic roller separator for concentrating nickel mineral, drum and roller type separators have become the most common magnetic separators. These devices can be constructed with permanent magnets or with electromagnets, and the drum separator can operate with a dry or wet supply. However, still today, strongly magnetic material detaching from the roller is a problem that has been tried to be resolved by introducing the magnets inside the cylinders, in only one area thereof, in such a way that when the material is rotated on the cylinder and moves away from the magnetised area, it falls as a result of gravity. This system has a highly complex structure. The invention uses novel and powerful, very small neodymium magnets to cover the entire surface of the roller. In this way, a small device with a larger yield is produced in a very simple and economic manner.

Abstract: The present invention relates to a process for separating magnetic constituents from an aqueous dispersion comprising these magnetic constituents and nonmagnetic constituents by passing the aqueous dispersion through a reactor space in which the aqueous dispersion is separated by means of a magnet installed on the outside of the reactor space into at least one stream I comprising the magnetic constituents and at least one stream II comprising the nonmagnetic constituents, wherein the magnetic constituents in stream I are treated with a flushing stream, a reactor comprising a reactor space, at least one magnet installed on the outside of the reactor space, at least one inlet, at least one outlet for a stream I and at least one outlet for a stream II and at least one facility for treating stream I with a flushing stream, and also the use of this reactor in the process of the invention.

Abstract: Methods for treating malaria are provided, the treatment comprising the step of removing malaria-infected red blood cells from the patient's blood. Blood is drawn from the patient's circulatory system and circulated through a blood purification device that selectively eliminates the infected red blood cells from all other blood's components and replaces the cleansed blood back into the patient's circulatory system. A blood purification device, which is useful to perform the therapeutic methods of the invention, is also provided. The device leverages the magnetic properties of the hemozoin contained within the infected red blood cells and comprises one or more separation chambers (4) though which blood flows through a high-gradient magnetic field generated by an array of wires (5) separated from the chambers and not in contact with the patient blood.

Abstract: Systems and methods for processing sludge from a fume scrubbing system that scrubs fumes from a steelmaking converter in a manner that separates/isolates a significant portion of the metallic iron particles in the sludge and prepares these particles for convenient handling. In an exemplary system, the system includes separating equipment that isolates metallic iron particles in the sludge and forming equipment that forms the isolated particles into briquettes that have relatively high mechanical resistance that allow the briquettes to maintain their integrity during handling and storage. The high-metallic-iron-content briquettes can be recycled in the steelmaking process, for example, as charging material for a basic oxygen converter or an electric arc furnace. Water used in the system can be recycled and reused within the system, thereby making the system environmentally friendly.

Abstract: An adjustable magnetic separator and method is provided herein to process aggregate material including magnetic material into a magnetic portion having a predetermined magnetic susceptibility, and a non-magnetic portion. The method and system include configuring an adjustable magnet to provide an effective magnetic field at a separating surface of the magnetic separator corresponding to the predetermined magnetic susceptibility of the magnetic portion to be separated. The strength or intensity of the effective magnetic field may be varied by mechanically adjusting the position of the magnet array included in the adjustable magnet relative to a separating surface defined by the magnetic separator.

Abstract: Methods and apparatus relate to processing of petroleum with a bed having a sorbent based diluent that the petroleum contacts upon passing through the bed. Magnetic properties of the sorbent and any other material, such as zeolite, used in the bed enable separation of such bed constituents based on a sulfided form of the sorbent being magnetic in contrast to a non-sulfided form of the sorbent being non-magnetic. Dividing the bed constituents into first and second portions by magnetic separation facilitates in selective replacing and/or regenerating the first portion independent of the second portion.

Abstract: A method and associated device for enrichment of Neél-magnetic particles from a dispersion of Brown-magnetic particles and Neél-magnetic particles. The device and method use ferromagnetic separation particles having a mean diameter of 100 to 250 ?m located in a alternating magnetic field. The ferromagnetic separation particles have a magnetically and chemically inert coating.

Abstract: Methods and apparatus relate to processing of petroleum with a bed having a sorbent based diluent that the petroleum contacts upon passing through the bed. Magnetic properties of the sorbent and any other material, such as zeolite, used in the bed enable separation of such bed constituents based on a sulfided form of the sorbent being magnetic in contrast to a non-sulfided form of the sorbent being non-magnetic. Dividing the bed constituents into first and second portions by magnetic separation facilitates in selective replacing and/or regenerating the first portion independent of the second portion.

Abstract: A method of transporting a magnetic fluid (104) or at least one magnetic particle (509, 510). The method comprises the steps of: providing a magnetic layer (102) with an asymmetric re-magnetization property; placing the magnetic fluid (104) or the magnetic particle(s) (509, 510) in the vicinity of the magnetic layer (102) so that they can magnetically interact with the magnetic layer (102); and applying an external magnetic field.

Abstract: A system for improved magnetization of flexible magnetic sheet material, such as magnetic rubber. More particularly, this invention relates to providing a system for magnetization of pre-printed flexible magnetic sheet material.

Abstract: A system for separating hydrocarbons from a solid source including a primary separation tank including a first hydrocarbon removing device to remove hydrocarbons from a slurry of water and solids. Further, the system including a transfer device between the primary separation tank and a secondary separation tank, wherein the transfer device is configured to transfer solids from the slurry to the secondary separation tank. Further still, the system including a second hydrocarbon removal device, a fine particle separation device to remove remaining solids in the secondary separation tank, and a product collection tank to receive hydrocarbons removed from the primary and secondary separation tanks.

Abstract: A method, apparatus, and system for coating, singulating, aligning, ablating, and indexing a number of seeds for testing is described. The apparatus has a carrier designed to hold seeds in a predetermined alignment for ablating a seed sample from a seed portion, the seed portions are indexed to the seed samples. The carrier is then located on the apparatus which delivers the seed samples from the carrier to a collector for laboratory testing.

Abstract: A magnetic separation device is provided, including a first magnetic field unit and a first separation unit disposed at a side of the first magnetic field unit. The first magnetic field unit includes a first magnetic yoke having opposite first and second surfaces, and a plurality of first magnets respectively disposed over the first and second surfaces, wherein the same magnetic poles of the plurality of first magnets face the first magnetic yoke. The first separation unit includes a body made of non-magnetic materials and a continuous piping disposed in the body, including at least one first section and at least one second section, wherein at least one second section is perpendicular to at least one first section, and at least one second section is adjacent to, and in parallel to a side of the first magnetic yoke not in contact with the plurality of first magnets.

Abstract: Apparatus and method for manipulating particles on a micro- or nano-scale. An embodiment of the present invention includes a magnetic micro-manipulation technique that utilizes micro-coils and soft magnetic microscopic wires for localized manipulation of particles. Another embodiment of the present invention uses magneto-static interaction between two magnetic microscopic wires to mechanically manipulate particles. Yet another embodiment of the present invention combines a magnetic particle with a magnetic manipulator or other device for generating magnetic fields to operate as a micro-fluidic micro-motor. Other embodiments of the present invention employ a magnetic separation system employing porous membranes partially filled with magnetic wires.

Abstract: Methods are provided for aligning carbon nanotubes and for making a composite material comprising aligned carbon nanotubes. The method for aligning carbon nanotubes comprises adsorbing magnetic nanoparticles to carbon nanotubes dispersed in a fluid medium to form a magnetic particle-carbon nanotube composite in the fluid medium; and exposing the composite to a magnetic field effective to align the nanotubes in the fluid medium. The method for making a composite material comprising aligned carbon nanotubes comprises (1) adsorbing magnetic nanoparticles to carbon nanotubes to form a magnetic particle-carbon nanotube composite; (2) dispersing the magnetic particle-carbon nanotube composite in a fluid matrix material to form a mixture; (3) exposing the mixture to a magnetic field effective to align the nanotubes in the mixture; and (4) solidifying the fluid matrix material to form a nanotube/matrix material composite comprising the aligned nanotubes which remain aligned in the absence of said magnetic field.

Abstract: Mobile metal scrap recovery apparatuses and methods of operating them to remove scrap metal from scrap metal-contaminated soil are disclosed. In a preferred embodiment, a mobile metal scrap recovery apparatus comprises first and second wheeled components, each of which is road transportable. The first wheeled component comprises a unit for screening the metal scrap-contaminated soil into at least a coarser fraction and a finer fraction. The second wheeled component comprises a magnet separator, an eddy current separator, and a manual picking station. Methods for conducting the business of scrap metal recovery are also disclosed. Such business methods involve the use of a mobile metal scrap recovery apparatus to remove scrap metal from scrap metal-contaminated soil.

Abstract: Apparatus, methods and systems for processing waste are provided. For example, a system for processing waste, wherein the waste comprises hard particulates embedded therein, can be provided. The system can comprise a waste disruptor, wherein the waste disrupter disrupts the waste and releases at least one of the embedded hard particulates from the disrupted waste; a segregator, wherein the segregator segregates at least one of the released hard particulates from the waste; and a dilution unit, wherein the dilution unit dilutes the waste. In some embodiments, the system can include a waste loader that provides waste continuously to the waste disrupter, which is configured to disrupt at least a portion of the continuously provided waste.

Abstract: A magnetic separator for spacing a plurality of workpieces in face-to-face relationship includes upper and lower guide plates that define a passage having an inlet opening and an outlet opening for workpieces moving through the separator, with the inlet opening having a funnel-shaped configuration adapted to admit and align any misaligned workpieces moving into the passage. Upper and lower pole pieces adjacent the upper and lower guide plates provide a magnetic field operative to orient workpieces in the passage. The upper guide plate has an intermediate portion that extends between an inlet and outlet end portions of the upper guide plate, with the inlet end portion extending transverse to the intermediate portion of the upper guide plate. The passage has an intermediate portion disposed between the inlet opening and outlet openings, with the inlet opening being substantially larger in cross-sectional area than the intermediate portion of the passage.

Abstract: A method and an arrangement for separating magnetic particles, magnetic particles and the use of magnetic particles are disclosed wherein the method comprises the steps of: —subjecting the magnetic particles to a first magnetic field such that the particle direction of easy magnetization is oriented parallel to the magnetic field vector of the first magnetic field, —subjecting the magnetic particles to a second magnetic field having an orientation rotated about an angle relative to the magnetic field vector of the first magnetic field, —applying a separating force on the magnetic particles.

Abstract: A system for separating hydrocarbons from a solid source including a primary separation tank including a first hydrocarbon removing device to remove hydrocarbons from a slurry of water and solids. Further, the system including a transfer device between the primary separation tank and a secondary separation tank, wherein the transfer device is configured to transfer solids from the slurry to the secondary separation tank. Further still, the system including a second hydrocarbon removal device, a fine particle separation device to remove remaining solids in the secondary separation tank, and a product collection tank to receive hydrocarbons removed from the primary and secondary separation tanks.

Abstract: Magnetic separator devices that are useful in separating finely divided solids in the presence of liquids, vapors, and gases that are hazardous, that is, they may be corrosive, flammable, toxic, or a combination of such hazards, and the use of such devices in processes for the manufacture of chlorosilanes.

Abstract: Apparatuses and methods for separating, immobilizing, and quantifying biological substances from within a fluid medium. Biological substances are observed by employing a vessel (6) having a chamber therein, the vessel comprising a transparent collection wall (5). A high internal gradient magnetic capture structure may be on the transparent collection wall (5), magnets (3) create an externally-applied force for transporting magnetically responsive material toward the transparent collection wall (5). V-shaped grooves on the inner surface of the viewing face of the chamber provide uniform. The invention is also useful in conducting quantitative analysis and sample preparation in conjunction with automated cell enumeration techniques.

Abstract: A method for recovering a catalyst for a fuel cell includes a collection step in which a catalyst is collected by attracting, using a magnetic force, a magnetic material contained in at least one of the catalyst and a carrier on which the catalyst is supported. A system for recovering a catalyst for a fuel cell includes a collection device that attracts, using a magnetic force, a magnetic material contained in at least one of a catalyst and a carrier on which the catalyst is supported.

Abstract: The disclosure describes apparatuses and methods of use that may be used to remove material with magnetic properties from compositions, particularly pharmaceutical compositions. The apparatuses provide a conduit or column in which a magnetic field exists and through which a composition flows. Magnetic material in the composition is substantially reduced after flowing through the conduit or column.

Abstract: In a method for sorting shredder residues of metal-containing wastes, e.g., vehicle bodies, the shredder residues are separated into a shredder light fraction and a non-ferromagnetic fraction (shredder heavy fraction). A system is arranged for sorting shredder residues of metal-containing wastes, e.g., vehicle bodies. At least parts of the primary material streams produced during the sorting of the shredder light fraction and the shredder heavy fraction in preliminary processes are fed to a common, main process for final processing, at least a ferromagnetic fraction, a fraction containing non-ferromagnetic metals, a granulate fraction, a fiber fraction, and a sand fraction being produced as end products.

Abstract: There is disclosed a method and system for determining packaging preference of a customer by identifying the customer using a customer identifier, and retrieving available packaging preference information using the customer identifier. In an embodiment, the customer's packaging preference information for a particular identified item is retrieved and graphically communicated. In another embodiment, customer packaging preference information based on a quantity of items is retrieved and graphically communicated. Customer packaging preference information based on both the identified items and the quantity of items may also be retrieved and graphically communicated.

Abstract: A waste water purification system for purifying polluted salt water including oil and the like by coagulating and separating pollutant matter in the polluted salt water can regenerate and reuse a coagulant in the system while scarcely resupplying the coagulant, an acid solution and an alkaline solution. The acid and alkaline solutions are required for disintegrating coagulated flocs from the polluted salt water and regenerating the coagulant from sludge. Alkaline water enriched in sodium hydroxide and an acidic aqueous solution containing hydrochloric acid and the like are generated by electrolyzing the purified salt water. The flocs in the separated sludge are disintegrated by use of the alkaline water, pollutant matter is removed from the disintegrated aqueous solution, and the strong acidic containing the hydrochloric acid is added to the aqueous solution removed of the pollutant matter to have the coagulant. The coagulant can be thus regenerated from the recovered sludge.

Abstract: A continuous magnetic separator and process for separating a slurry comprising magnetic particles into a clarified stream and a thickened stream. The separator has a container with a slurry inlet, an overflow outlet for the discharge of the clarified slurry stream, and an underflow outlet for the discharge of a thickened slurry stream. Magnetic particles in the slurry are attracted to, and slide down, magnetic rods within the container. The slurry is thus separated into magnetic concentrate and clarified slurry. Flow control means can be used to control the ratio of the rate of magnetic concentrate to the rate of clarified slurry. Feed control means can be used to control the rate of slurry feed to the slurry inlet.

Abstract: A process for concurrently fractionating and treating a full range naphtha stream. The full boiling range naphtha stream is first subjected to simultaneous thioetherification and splitting into a light boiling range naphtha, an intermediate boiling range naphtha and a heavy boiling range naphtha. The intermediate boiling range naphtha containing thiophene and thiophene boiling range mercaptans is passed on to a polishing hydrodesulfurization reactor where a low sulfur, low olefin gas oil is concurrently fed to the polishing reactor to insure that a liquid phase is present.

Abstract: Systems and methods for disposing of waste material are disclosed, in which a cross-belt magnet configuration is employed to separate ferromagnetic substances from waste material. For some embodiments, the system includes a first conveyor belt, a magnet, and a second conveyor belt. The first conveyor belt is configured to carry waste materials in a first direction. The magnet is located in proximity to the first conveyor belt such that the first conveyor belt is within range of the attractive force of the magnet. The magnet attracts the ferromagnetic substances. The second conveyor belt is interposed between the magnet and the first conveyor belt. The second conveyor belt is positioned non-parallel to the first conveyor belt, and is configured to carry the attracted ferromagnetic substances in a second direction, which is non-parallel to the first direction.

Abstract: A magnetic raking device that agitates a ground surface and uses magnetic attraction for collecting ferro-metallic debris, such as nails and screws, at construction jobsites and other locations, includes a release mechanism that temporarily eliminates magnetic attraction of the debris to the rake, thus allowing collected debris to drop from the rake, such as into a trash or recycling container. One type of release mechanism physically removes one or more magnets from the rake body to eliminate magnetic attraction to the rake body. One type of release mechanism uses electromagnets in the rake body that attract ferro-metallic debris when current is allowed to run through the electromagnets, and that allows the debris to drop from the rake when the current is interrupted. The magnetic rake may be used in an inverted position to attract ferro-metallic debris without agitating, and may be used in a non-magnetic state as a conventional rake.

Abstract: The method for separating ferrate salts from a solution comprising providing contact between the solution of essentially of aqueous hydroxide and the ferrate salts and a surface having a magnetic attraction, magnetically securing the ferrate salts to the surface; and eliminating contact between the solution and the surface. Contact is provided by immersing the surface in the solution, passing the liquid ferrate mixture over the surface, or combinations thereof. The magnetic attraction may be induced by permanent magnets, electromagnets, and combinations thereof. The apparatus for ferrate production comprises an electrochemical cell having an iron-containing anode, cathode, and an aqueous hydroxide solution in fluid communication with both the anode and the cathode, and a magnetic separator in fluid communication with the aqueous hydroxide solution for separating ferrate salts from the aqueous hydroxide solution.

Abstract: An apparatus for manipulating and testing molecules includes a surface to which the molecule is anchored at multiple points at one end, a paramagnetic bead on which said molecule is anchored at multiple points at its other end, and a magnetic means for applying a force to the bead, said magnetic means being used to control the stretching and rotation of said bead and said molecule. The apparatus also includes an optical magnification means and a camera for the visualization of said bead. The apparatus further includes a computer means to which images from the camera are transmitted. The computer means includes means for analyzing the motions of the bead. The apparatus also includes a rotating means for spinning the magnetic means about an optical axis of the magnification means.

Abstract: An apparatus for separating non-magnetic mineral values includes first and second conveyers in overlying relation which counter-rotate relative to one another, wherein one of the conveyers includes a magnetic assembly which cooperates with paddles on the upper conveyer to progressively isolate values from magnetic material, and multiple stages are provided for intermittent magnetic interactions such that non-magnetic materials are effectively isolated from magnetic materials.