Abstract: The invention relates to a method and a an apparatus for processing various materials, the apparatus including at least two annular feed gaps placed one within the other. The beginning of each feed gap is provided with a grinding section (5), which is followed in the apparatus by a mixing section (10). The materials are processed in the grinding section (5), whereafter they are mixed in the mixing section (10), and the mixture is extruded into a product.

Abstract: A process and apparatus for comminuting rubber particles. In this process and apparatus rubber particles at a temperature below the glass transition temperature are introduced into a comminuting device concurrent with the introduction of an inert gas coolant at a temperature below about ?75° F. The rubber particles are comminuted in the comminuting device at a rate proportional to the average particle size of the introduced rubber particles to an average size within the range of crumb or powder rubber particles.

Abstract: A process and apparatus for making crumb and powder rubber from preprocessed rubber particles. The process and apparatus provides an energy efficient operation wherein the preprocessed rubber particles are dried, precooled, frozen, comminuted and sized using a closed cryogenic fluid cycle.

Abstract: A shredder that shreds a recording medium which includes, on a surface thereof, an image forming portion and a holographic memory portion in which data is recorded. The shredder includes a data destroying unit that destroys at least the data recorded in the holographic memory portion and a shredding unit that shreds the entire recording medium. Thus, when a recording medium to which has been added a holographic memory portion in which useful information is recorded is to be discarded, the data(information) recorded in the holographic memory portion can be safely destroyed so that the data can no longer be read.

Abstract: The invention concerns a method for treating tyres, belts, inflatable boats, boots and other manufactured articles containing rubber, polymers and reinforcing elements, which is a close circuit system consisting in immersing the waste materials to be treated in a hot alkaline hydroxide bath, followed by neutralization of the resulting materials with a weak mineral acid solution for industrial re-use of said materials.

Abstract: A method for the production of zinc flake from zinc particles by dry milling the zinc particles using a mixture of a fluorocarbon lubricant and a stearate lubricant, optionally in admixture with a hydrophobic inorganic powder.

Abstract: An apparatus for subjecting a rare earth alloy block to a hydrogenation process includes a casing, gas inlet and outlet ports, a member arranged to produce a gaseous flow, and a windbreak plate. The casing defines an inner space for receiving a container. The container includes an upper opening and stores the rare earth alloy block therein. A hydrogen gas and an inert gas are introduced into the inner space through the gas inlet port, and are exhausted from the inner space through the gas outlet port. The gaseous flow is produced by a fan, for example, in the inner space. The windbreak plate is disposed upstream with respect to the gaseous flow that has been produced inside the inner space. Also, the windbreak plate reduces a flow rate of the gaseous flow that has been produced near the upper opening of the container.

Abstract: A method for recycling polymeric materials, including a mechanical separation step (B), a first density separation step (C), an intensive cleaning step (E), and a second density separation step (G, V) is described. Additional separation steps, such as a third density separation step (M, W), and optionally a fourth density separation step (Ga, Gb). Further less essential steps such as wetting (A), grinding (D), air flow separation (K), drying (I), electrostatic sorting (Z) and optional sorting (Za) steps may also be carried out to achieve optimized and refined separation. Polymeric materials from refuse or crushed motor vehicles may thus be separated, and polyethylene, polypropylene, polystyrene and acrylonitrile-butadiene-styrene resins may be recycled.

Abstract: Methods for changing the surface area of nanomaterials to improve properties, processing and product manufacturing. These methods are useful for oxides, nitrides, carbides, borides, metals, alloys, chalcogenides, and other compositions.

Abstract: A rubber grinding machine and method is provided for ambient temperature grinding of rubber material to form finely ground rubber particles. The rubber grinding machine includes a feed tube, a grinding module, a conveyor, a screening module and a vacuum system. Rubber material is placed in the feed tube which advances the rubber material into the grinding module using a plunger or auger. The grinding module includes a grinding wheel which grinds the rubber material into rubber particles. The grinding wheel is surrounded by a shroud which includes a water-cooled cooling jacket. The water is circulated through the cooling jacket to cool the shroud and its interior. Rubber particles ground by the grinding wheel fall through the bottom of the shroud onto a conveyor which deposits the rubber particles onto the screen module. The screen module includes at least one screen for separating the rubber particles by size.

Abstract: A method of and system for liquefying snow. The system includes a rotor-stator device mounted within a melting reservoir and having a slotted rotor and a slotted stator. Snow and/or ice is deposited in a water bath in the melting reservoir. The rotor rotates at high speed, hurling particles of crystalline snow from the tips of the rotor slots onto the perpendicular faces of the stator, thereby fracturing the crystals and promoting liquefication. The high mechanical forces generated during operation of the rotor-stator device also contribute a significant amount of heat that is applied directly to the snow. The system also includes ancillary assemblies, such as heat-exchangers and snow-transport means. The system is operable as a stationary unit or a mobile unit.

Abstract: A method for processing municipal waste substantially reduces the volume of material to be disposed into a landfill by increasing the volume of materials of value collected from the municipal waste and by composting the remaining materials to create a salable product. The process includes the removal of materials of value by magnetic devices to extract ferrous materials, by an air classifier to extract light plastic materials, by an eddy current mechanism to extract aluminum materials, and by a plastic sort mechanism to extract large plastic materials. Composting can be accomplished with a composting vessel that is located in the process either before the materials of value are removed or afterward. A grinding of the materials before a final screening allows the commercial grade compost to be separated from the materials that are to be sent to the landfill for final disposal.

Abstract: The method for preventing asbestos from freeing airborne particles comprises sequentially heating and the asbestos in the following surrounding temperatures values and maintaining the asbestos in these surrounding temperature values until the asbestos changes to the following corresponding colors: a) between 125° F. (52° C.) and 175° F. (79° C.) until the asbestos changes to a uniform pale russet-red color; b) between 225° F. (107° C.) and 275° F. (135° C.) until the asbestos changes to a uniform dark russet-red color; c) between 325° F. (163° C.) and 375° F. (191° C.) until the asbestos changes to a uniform dark orange color; d) between 425° F. (218° C.) and 475° F. (246° C.) until the asbestos changes to a uniform red color; e) between 525° F. (274° C.) and 575° F. (302° C.) until the asbestos changes to a uniform grey color; and f) between 625° F. (329° C.) and 675° F. (357° C.) until the asbestos changes to a uniform opaque white color.

Abstract: Porous ceramic particles can be fragmented by generating a gas inside the pores at a sufficient pressure to cause the particles to be fragmented. The preferred way of generating the pressure is by immersing the particles in a liquid that at ambient temperatures and pressures is a gas until the liquid is absorbed into the pores and thereafter rapidly changing the conditions such that the liquid becomes a gas resulting in explosive fragmentation of the ceramic particles.

Abstract: The present invention relates to a method for preparing a lithium manganese complex oxide Li1+xMn2?xO4 (0?x?0.12) used as a cathode active material of a lithium or lithium ion secondary battery. The present invention provides a method for preparing a manganese compound comprising the step of simultaneously applying a mechanical force and heat energy to a manganese compound to remove defects present in particles of the manganese compound and to control the aggregation of particles and the shape of the aggregated particles, a method for preparing a lithium manganese complex oxide with a spinel structure using the manganese compound prepared by the above method as a raw material, and a lithium or lithium ion secondary battery using the lithium manganese complex oxide with a spinel structure prepared by the above method as a cathode active material.

Abstract: In method for freeze-crushing waste resources, freezing gas is first created by collecting freezing heat source of liquefied petroleum gas during a heat exchange process between the liquefied petroleum gas and cooling gas, and then the waste resources stored in a freezing tank is frozen to a temperature where the waste resources can be easily crushed by supplying the freezing gas to the freezing tank. Next, the frozen waste resources is crushed in an crushing apparatus, after which the freezing gas is separated from the crushed waste resources in a separate apparatus and the freezing gas for is collected the purpose of reuse.

Abstract: The present invention 10 discloses a trash and garbage processing device which may be sized to fit into a kitchen of a home or sized to be used in a multi-family dwelling. The present invention 10 has a plurality of sorting compartments 12 disposed on the top thereof for receiving various types of waste products. There is a compartment for shrinking and palletizing plastics, another compartment for shredding paper and cardboard 58, another compartment for perishable organic waste 48, a crushing compartment for crushing cans and glass/plastic products 54 and a disposal compartment 60 for non-degradable, solid waste such as bones and batteries. After the various types of waste materials are processed, they are transferred to a conduit to a recycling bin 32 for temporary storage and then thereafter removed from the recycling bin and transferred for final disposal.

Abstract: A method for recovering and recycling expensive and hazardous components from capacitors containing an electrolyte salt dissolved in an aprotic organic solvent. The method includes disintegrating a plurality of capacitor casings and their contents into fragments and forming an aqueous slurry of water insoluble fragments, filtering fractionally distilling the filtrate to remove the solvent as a distillate and recovering the electrolyte salt.

Abstract: A process of both milling and drying a solvent-moist material (e.g., water-moist methylhydroxyethylcellulose) is described. The process includes, (a) providing a mill-dryer (100) which includes, in series, a heat exchanger (1), a mill (2) and a particulate separating apparatus (105) connected by conduits (8), (9) and (11, 12), which together define a mill-dryer circuit (103). The mill-dryer (100) also includes a bypass conduit (14), which provides optionally at least partial gaseous bypass of the heat exchanger (1). The process further includes: (b) introducing the solvent-moist material into the mill (2); (c) circulating a vapor stream (e.g.

Abstract: A method for processing polycrystalline silicon workpieces to form size distributions of polycrystalline silicon pieces suitable for use in a Czochralski-type process includes: (1) preparing a polycrystalline silicon workpiece by a chemical vapor deposition process; (2) fracturing the polycrystalline silicon workpiece into a mixture of polycrystalline silicon pieces, where the polycrystalline silicon pieces have varying sizes; and (3) sorting the mixture of polycrystalline silicon pieces into at least two size distributions. Step (2) may be carried out by a thermal shock process. Step (3) may be carried out using a rotary indent classifier.

Abstract: An ultra fine mineral compound and method of processing native Dead Sea minerals into this ultra fine mineral compound that can be used to manufacture all natural Dead Sea mineral compositions particularly compositions for use in bath and body products is disclosed. Even with the extreme ionic character of the Dead Sea minerals, the Dead Sea mineral compositions prepared remain in suspension creating a viable cosmetic preparation that can maintain adequate shelf life and provide a more pleasant feel for the consumer.

Abstract: A method of making polymeric particulates wherein polymeric scrap material, virgin polymeric material and mixtures thereof are supplied to intermeshing extruder screws which are rotated to transport the polymeric material along their length and subject the polymeric material to solid state shear pulverization and in-situ polymer compatibilization, if two or more incompatible polymers are present. Uniform pulverized particulates are produced without addition of a compatibilizing agent. The pulverized particulates are directly melt processable (as powder feedstock) and surprisingly yield a substantially homogeneous light color product.

Abstract: A process for making singulated pulp flakes is provided. The process includes dewatering liquid pulp stock to a consistency of about 30 to about 50% solids. The process includes initial flaking to break up the dewatered pulp bundles into semi-uniform flakes having a median size of from about 3 to about 5 mm3 and a consistency of from about 33 to about 55% solids. The process includes drying the flaked pulp to a consistency of from about 85 to about 97% solids. The process includes flaking a second time to separate the flakes that may have bonded during drying. The product “singulated” flakes then go to a baler for packaging. In another embodiment, the process includes blending the liquid pulp stock with at least one adjuvant prior to dewatering.

Abstract: Post-processing methods for nanoparticles are disclosed. Methods for real time quality control of nanoscale powder manufacture are discussed. Uses of post-processed particles and consolidation methods are disclosed. Disclosed methods can enable commercial use of nanoscale powders in wide range of nanotechnology applications.

Abstract: The device for the in situ disposal of incontinence articles comprises a basic housing (11) in which is placed a device (20) made of a drum-type housing (21) with an upper filling opening (22) and a cylindrical drum (30) placed in the inner space (23) of the housing (21), stationary or which can be set rotating about a horizontal axis of rotation (24) in one direction or alternately by means of a first driving device (25), with a filling opening (32) for the material to dispose of and with two wall plates (33, 34) closing both drum openings (30a, 30b) on the front side, the first wall plate (33) being connected with the drum housing and the second wall plate (34) being configured displaceable by means of a second driving device (35) in the drum rotation axis longitudinal direction or displaceable and rotatable about its center axis, whereby both front side drum wall plates (34, 35) carry on their opposing wall faces (33a, 34a) cutting, separating and disintegrating knives (40, 140) penetrating into the drum i

Abstract: The invention relates to a multifunctional fiber rich fraction (FRF) useful as an excipient for pharmaceutical dosage forms for various routes of administration. This excipient can be used as binder, disintegrant, filler, dispersing agent, coating agent, film forming agent, thickener etc for preparation of variety of dosage forms. This FRF can also be used in a controlled release, targeted release and other specialized delivery systems, as well as in food and cosmetics formulation.

Abstract: The present invention provides: a process for treating a particulate water-absorbent resin, which enables to carry out pulverization stably in a process for producing a particulate water-absorbent resin, and transportation or storage of the particulate water-absorbent resin stably during or after producing the particulate water-absorbent resin, and to prevent contamination of cohered matters of the particulate water-absorbent resin; and involves no or little deterioration of properties. The process for treating a particulate water-absorbent resin is characterized by carrying out at least one selected from the group consisting of: (1) heating at least one portion of a surface getting contact with the particulate water-absorbent resin from the outside, (2) maintaining the temperature of at least one portion of a surface getting contact with the particulate water-absorbent resin at 30 to 150° C.

Abstract: On processing pasty materials, the material is conveyed with a relatively high dry fraction of 40 to 75% through the holes (62) of the perforated plate (42) of a granulator, in that a feed element (50), forming with the perforated plate (42) a wedge-shaped gap space (61), strokes with its trailing edge (53) over the perforated plate (42). The material strands (63) pressed out of the holes (62) are cut off by a knife-like separating device (64) stroking over the discharge-side surface of the perforated plate (42). Thus, particles of a particularly small size can be produced with a relatively low energy cost from the sludge and without the granulator being blocked by a damming up of fibres, e.g. in the form of hair contained in the sludge.

Abstract: This invention is a method for producing a cerium-based abrasive which includes: a step of grinding raw material for the cerium-based abrasive; a step of roasting the ground raw material; and a step of subjecting the roasted raw material to wet processing, the method being characterized in that it further includes a lower-temperature re-roasting step of heating the wet-processed raw material at 200 to 700° C. In the invention disclosed in this application, an abrasive with particularly preferable properties can be produced by fully drying the wet-processed raw material in a drying step, and subsequently subjecting the dried raw material to the lower-temperature re-roasting step.

Abstract: The present invention provides a process for recycling fines produced during the production of powder coatings comprising the steps of heating the fines for a sufficient time and a sufficient temperature such that a reusable product is obtained, cooling such product, crushing the cooled product to produce particles of a desired particle size; and removing any particles which are not of desired particle size.

Abstract: A method and apparatus for comminuting and drying material utilizing a closed-loop cyclonic system including a cyclonic comminution chamber, and further incorporating heated or dried air for desiccation of the material, as well as reducing the air pressure of the system to provide enhanced drying of the material. The present invention further contemplates to a cyclonic mill system configured to fiberize and dewater cellulose and other materials in a highly efficient and cost effective manner. The present system employs indirect heat drying and fiberizing for the continuous drying and processing of moist cellulose (i.e., bagasse, paper, etc) material by cyclonically agitating same in a hot air flow via a specially designed cyclonic mill, which is configured to effectively dewater and decimate wet cellulose material from a variety of sources for form fiberized cellulose material suitable for thermal insulation or other products.

Abstract: The present invention provides a process and processor for reusing waste paint, rolling the waste paint between a pair of heated rotating drums 15 disposed opposite to each other in a rolling dryer 13 for dehydrating and drying the waste paint (rough drying step I), and accumulating the dehydrated and dried waste paint in a stirring dryer 21 while stirring the accumulated waste paint by a rotating grinding rotor 24 under cooling (holding step II), and drying and pulverizing the accumulated waste paint with the rotating grinding rotor 24 under heating (main drying step III). The process and processor bring about highly efficient processing of the waste paint.

Abstract: An apparatus that pulverizes feedstock material with crushers injects a liquefied inert gas into the feedstock material, evaporation of the gas causing the material to become very cold, brittle, facilitating further processing. Very fine finished particle sizes, passing −200 micron mesh screens, result from the use of the apparatus. The apparatus generally requires little maintenance to achieve such small particle size as compared to mechanical crushers. Because of the effect of the inert gas upon the feedstock material, pulverization generally occurs by impact only. A method for pulverizing is also described.

Abstract: The atomizing systems employed according to the state of the art in the production of powders are normally successively charged with liquid material from one or more melting pots for atomizing purposes. Due to the different ambient conditions that prevail inside the pot or in different pots during the melting or during the transfer of the melt, the resulting powder tends to be quite non-homogeneous. According to the invention, a device that serves to continuously melt a material is installed upstream from an atomizing system. A preferred example of such a device is the device known from WO 97/05440. The invention makes it possible to considerably improve the homogeneity of the powder produced by atomization. The system according to the invention allows not only the atomization of metallic material but also the production of non-metallic powder, especially glass powder.

Abstract: A method and system for treating material, especially medical waste, municipal solid waste, and paper, such as newsprint. The system includes an input component having an air lock and shredder; a pressurized treatment component which includes a feed screw which feeds material into an extrusion tube that is connected to a rotating autoclave vessel, a pressurized outlet hopper, and an exit feed screw which feeds sterilized material into an outlet extrusion tube. The system also includes a drying and cooling component which receives material from the outlet extrusion tube, tumbles the material in a drum to break it up, cool it and release moisture, and an evacuation blower which conveys moist air in the drum through a condenser. In a preferred embodiment, the autoclave vessel is sealed at its inlet and outlet ends in part by dynamic plugs of material which progress through the inlet and outlet extrusion tubes, but at the same time form compacted, airtight barriers which seal the autoclave vessel.

Abstract: A method of separating at least one polymer from a mixture of polymers. The method includes adjusting the temperature of the mixture, either by heating or cooling, to bring the temperature to a temperature at which decombination of the polymer mixture occurs. Mechanical energy is also imparted to the mixture, before, during or after temperature adjustment. The temperature adjustment and application of mechanical energy enable at least one polymer to be separated from the other polymers in the mixture.

Abstract: A small-scale or micro media-mill and a method of milling materials or products, especially pharmaceutical products, use a dispersion containing attrition milling media and the product to be milled. The milling media can be polymeric, formed of polystyrene or cross-linked polystyrene, having a nominal diameter of no greater than 500 microns. Other sizes include 200 microns and 50 microns and a mixture of these sizes. The mill has a relatively small vessel having an opening, an agitator, a coupling and a motor. The agitator can have a rotor and a shaft extending therefrom. The rotor can be cylindrical or have other configurations, and can have tapered end surfaces. The coupling can close the vessel opening, or attaching the coupling to the motor can close the opening. The coupling has an opening through which the rotor shaft extends into the motor. A sealing mechanism, such as a mechanical or lip seals the shaft while permitting the rotor shaft to rotate.

Abstract: Relative coarse flakes fabricated from used and manufacturing scrap asphalt shingle material are finish processed into ground cover and/or erosion control products. Processing of the flakes include (i) softening the surface of the flakes, (ii) embedding a surface treatment material into the softened surface of the flakes, and either (iii) supplying the flake as loose ground cover, or (iv) compressing the flakes into a portable mat.

Abstract: A method and apparatus for breaking down pieces of material into smaller pieces and for separating out different substances making up the material, one of the substances being a fibrous textile and another being metal, comprising the steps of subjecting the pieces to a series of dismemberments to produce progressively smaller pieces falling within a predetermined size range; separating the smaller pieces into a plurality of fractions, each fraction including pieces within a predetermined size range; and subjecting each fraction to a flow of air calibrated to cause separation of the fibrous textile material from the pieces.

Abstract: The present invention provides a process and processor for reusing waste paint (i.e., a process and processor for converting waste paint into resources) which bring about efficient processing of the waste paint. In the process for reusing the waste paint, the waste paint is rolled between a pair of heated rotating drums disposed opposite to each other, to dehydrate and dry the waste paint (rough drying step); and the dehydrated and dried waste paint is ground by a rotating grinding rotor of which axial is perpendicularly arranged in a processing tank and further the dehydrated and dried waste paint is dehydrated, dried and pulverized (main drying step).

Abstract: A method for stabilizing material physical properties of recyclable bumpers including the steps of: separating coating from raw material obtained by cleaning, fracturing and drying recyclable bumpers to form a recycled matrix; mixing an additive with the recycled matrix; melting and extruding the mixed matrix with an extrusion machine; cutting the molten and extruded matrix to produce pellets; introducing the pellets into a tank of a predetermined capacity; and mixing the pellets in the tank for a predetermined period of time while again delivering the pellets in the tank to an introduction opening of the tank for reintroduction into the tank in parallel with the pellets that are to be newly introduced.

Abstract: An apparatus and method recycles the abrasive fluid or slurry effluent used in the polishing step in the manufacture of semiconductors. Agglomerations of abrasive grains built up in the slurry effluent are crushed using a mill, ultrasonic oscillation, or pressurized circulation. The slurry effluent is then regenerated and reused.

Abstract: A method for processing polycrystalline silicon workpieces to form size distributions of polycrystalline silicon pieces suitable for use in a Czochralski-type process includes: (1) preparing a polycrystalline silicon workpiece by a chemical vapor deposition process; (2) fracturing the polycrystalline silicon workpiece into a mixture of polycrystalline silicon pieces, where the polycrystalline silicon pieces have varying sizes; and (3) sorting the mixture of polycrystalline silicon pieces into at least two size distributions. Step (2) may be carried out by a thermal shock process. Step (3) may be carried out using a rotary indent classifier.

Abstract: A device for grinding biological samples to extract DNA, RNA and proteins including a multiplicity of rotary hammers supported by a hammer-carrier block and a lower mobile tray, the tray being movable between an operating position close to the hammer-carrier block and a rest position away from the hammer-carrier block, each of the hammers comprising at least one conduit for distribution of liquid.

Abstract: Method of shaping solid, particulate materials, which comprises forming a raw slurry of the starting material, in a liquid which is a partial solvent of said material, and submitting the slurry to treatment by ultrasound generators to produce therein ultrasonic vibrations which shape and grind the starting, particulate material to produce a shaped slurry of ground and shaped particles. The shaped particles may be separated from their slurry by removing the partial solvent by decantation and/or filtration. The partial solvent may be a liquid in which the material to be shaped has a solubility comprised between 1 and 10, wherein the solubility is expressed as grams of material that are dissolved in 100 ml of the liquid at a temperature of 20° C. The partial solvent can be chosen from among acetone, methyl ethyl ketone, and mixtures of said solvents with one another or other solvents and/or a minor amount of water, and may also be an organic solvent.

Abstract: A composition for substrate materials according to the present invention includes 70-95 wt. % of inorganic powder and 5-30 wt. % of thermosetting resin composition and is in a finely crushed condition. The composition for substrate materials is prepared, for example, by crushing into fine pieces and mixing the inorganic powder and the thermosetting resin composition. A heat conductive substrate is provided with an insulator body formed by heating and pressurizing said composition for substrate materials and a wiring pattern is provided in such a condition that it is exposed on the surface of the insulator body. A process for manufacturing the heat conductive substrate comprises forming said composition for substrate materials into the insulator body by casting the above mentioned composition for substrate materials into a metal mold to be heated and pressurized so that said thermosetting resin is cured.

Abstract: Rubber chips are immersed in a coolant to cool the chips to a the temperature in the range of −90 degrees to −110 degrees Celsius. The coolant contains alcohol such as n-butyl alcohol, methanol, pentane and is cooled by nitrogen. The cooled chips are then comminuted to a powder in the range of 10 mesh to 100 mesh ASTM in size.

Abstract: A method for re-using unneeded expanded styrene and an apparatus for preparing comminuted expanded styrene that can be used as a starting material for injection molding. The expanded styrene is rendered re-usable through a first step of comminuting expanded styrene, a second step of illuminating far-infra-red light to the expanded styrene comminuted by the first step to reduce its volume, a third step of further comminuting expanded styrene, reduced in volume by the second step, to prepare a granulated material, and a fourth step of injection-molding the granulated material from the third step to prepare a regenerated article.

Abstract: The invention relates to a device for disaggregating pieces of derived timber products from cellulose and/or lignocel-lulose-containing products, especially particle boards, medium-density fiber boards and the like, with a transport device and at least one disaggregation container. The inventive device is also characterized in that the disaggregation container and the transport device are configured as at least one common densifier screw (1) with a housing-mounted outer shell and a driven shaft located therein. The shaft is provided with helices of a predefined pitch. The pieces of derived timber products are transported in the axial direction of the densifier screw (1) from a feed opening in the outer shell towards an outlet opening on the front side thereof in the axial direction (direction of transport). A feed opening (7) for vapor is provided in the outer shell between the inlet opening and the outlet opening.

Abstract: The objects of the present invention are to provide a method of producing highly weather-resistant iron-based magnet powder containing a rare-earth element, particularly characterized by high coercive force in a practically important humid atmosphere, highly weather-resistant magnet powder produced by the same method, resin composition containing the same powder for bonded magnets, and bonded magnet containing the same powder. The present invention provides a method of producing a magnet powder by crushing an iron-based magnet powder containing a rare-earth element in an organic solvent, wherein phosphoric acid is added to the solvent in which the powder is crushed.