Abstract: The present invention provides a method and system for providing on-site electrical power to a fracturing operation, and an electrically powered fracturing system. Natural gas can be used to drive a turbine generator in the production of electrical power. A scalable, electrically powered fracturing fleet is provided to pump fluids for the fracturing operation, obviating the need for a constant supply of diesel fuel to the site and reducing the site footprint and infrastructure required for the fracturing operation, when compared with conventional systems. The treatment fluid can comprise a water-based fracturing fluid or a waterless liquefied petroleum gas (LPG) fracturing fluid.

Abstract: An apparatus for converting a dry material into a liquid concentrate includes a mixing vessel having an outlet opening, a dispenser for dispensing a predetermined weight of a dry material at a predetermined drop rate onto a predetermined drop location within the vessel, an inlet pipe connectable to a source of liquid for introducing a liquid into the vessel; a sensor for sensing the volume of liquid within the vessel; a pump for supplying a pressurized flow of recirculating liquid to the vessel; and a first, a second and a third agitating nozzle mounted within the vessel. Each agitating nozzle is operative to produce a jet of liquid oriented in a predetermined direction within the vessel. The nozzles are cooperable to generate within the vessel a moving body of liquid into which a dry material dispensed into the vessel is able to dissolve or to disperse.

Abstract: Methods and systems for optimizing the process of heat and/or mass transfer operations in packed beds and embodiments of applications of the methods are disclosed herein below. In one instance, the method results in the profile of the quantity representative of the heat and/or mass transfer operation having a propagating substantially sharp front.

Abstract: A plurality of individual single column test elements are provided for use in a clinical testing apparatus in an open-topped cartridge in which each test element is defined by a single test column that includes a quantity of a test material, such as gel material or a bead matrix, including a cover strip used to access the contents of the test column. The number of individual test elements provided in a cartridge can be varied, depending on the test(s) to be performed.

Abstract: Techniques and devices are provided related to a handling system for cassettes for radiolabeled compound synthesis that include a magazine that is unshielded and that is configured to receive a plurality of microfluidic synthesis cassettes. In one embodiment, the plurality of microfluidic synthesis cassettes include nonradioactive reagents to generate a radiolabeled compound when reacted with a radioactive species. In this manner, a cassette handling device may be stored unshielded and may be coupled to a cassette handling platform to allow advancement of the plurality of microfluidic synthesis cassettes into the cassette handling platform and, in turn, a shielded radiosynthesis machine.

Abstract: Novel manifolds and methods of flow through manifolds are described. Apparatus and techniques are described in which flow from a relatively large volume header is equally distributed to process channels. Methods of making laminated, microchannel devices are also described.

Abstract: A method for processing liquids and suspensions using shockwaves that includes providing an apparatus including a shockwaves generation section and a shockwaves processing section; placing media to be processed into the shockwaves processing section through continuous or intermittent injection; introducing a pressurizing gas into the shockwaves generation section; introducing a detonable mixture into the shockwaves generation section; causing formation of at least one of a shockwave within the shockwaves generation section by igniting the detonable mixture so that at least one of a shockwave propagates from detonation section into shockwaves processing section; utilizing physical, chemical, biological or mechanical effects of the shockwaves in the shockwaves processing section; venting detonation products from the shockwaves generation section via a pressure relief valve; and repeating to achieving a pre-determined degree of processing liquids, liquid suspension, colloids, gels, pastes located in the shockwav

Abstract: A method of irradiating a target region containing at least one fullerene comprising molecule promotes the heating or combustion of the target region. The heating method can be employed in a variety of applications including: selective targeting and destruction of cancer cells, detonation of explosives, ignition of a combustible mixture, photolithographic processes, and writing of optical storage media.

Abstract: A reactor and process for the production of bio-diesel. The reactor includes one or more coiled reaction lines. The lines are positioned within a tank containing a heat transfer media such as molten salt, maintained at about 750° F. A pump circulates the media within the tank. An emulsion of alcohol; refined feed stock, including glycerides and/or fatty acids; and preferably water is pumped through the reaction lines at temperatures and pressures sufficient to maintain the alcohol in a super-critical state. The curvature of the coils, pump pulsing, and the flow rate of the emulsion keep the emulsion in a turbulent state while in the reactor, ensuring thorough mixing of the alcohol and feed stock. The alcohol reacts with the glycerides and fatty acids to form bio-diesel. The reaction is fast, efficient with regard to energy input and waste generation, and requires minimal alcohol.

Abstract: An acid gas sorbent composition is disclosed. The composition comprises a compound having the following formula: (SiO2)x(OH)yF.B wherein F optionally exists and said F is at least one of the following: a functionalized organosilane, a sulfur-containing organosilane, or an amine-containing organosilane; and wherein B is a hygroscopic solid at a preferred water to solid molar ration of about 0.1 to about 6, and more particularly, B is a basic inorganic solid including, but not limiting to, alkali to alkali-earth metal oxides, hydroxides, carbonates, or bicarbonates, containing at least one of the following metal cations: calcium, magnesium, strontium, barium, sodium, lithium, potassium, cesium, lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, dysprosium, scandium, ytterbium, yttrium, or erbrium; wherein the molar ration of y/x is equal to about 0.01 to about 0.5.

Abstract: The present disclosure provides biorefining systems for co-producing activated carbon along with primary products. A host plant converts a feedstock comprising biomass into primary products and carbon-containing co-products; a modular reactor system pyrolyzes and activates the co-products, to generate activated carbon and pyrolysis off-gas; and an oxidation unit oxidizes the pyrolysis off-gas, generating CO2, H2O, and energy. The energy is recycled and utilized in the host plant, and the CO2 and H2O may be recycled to the reactor system as an activation agent. The host plant may be a saw mill, a pulp and paper plant, a corn wet or dry mill, a sugar production facility, or a food or beverage plant, for example. In some embodiments, the activated carbon is utilized at the host plant to purify one or more primary products, to purify water, to treat a liquid waste stream, and/or to treat a vapor waste stream.

Abstract: Provided is a molded article for hydrocarbon adsorption, in which a porous metal complex, the structure of which may vary with adsorption and desorption of gases, can exhibit to a sufficient degree the adsorption and desorption capabilities inherent to the complex. This molded article for hydrocarbon adsorption is characterized by including (A) a metal complex constituted by metal ions, and organic ligands capable of bonding to the metal ions, and (B) a polymer binder component containing within its molecules a total of 0.3 mmol/g to 8.0 mmol/g, inclusive, of at least one functional group selected from group consisting of the carboxyl group, the hydroxyl group, amino groups, the mercapto group, epoxy groups, and the sulfo group.

Abstract: A moisture sorbing acrylic-based composition comprising an ethylene glycol dimethacrylate as main liquid component, and a metal perchlorate therein dissolved is described. Use of the composition in order to obtain a moisture sorber material is also described, to be inserted for example in electronic or optoelectronic devices.

Abstract: Nonwoven fibrous webs including a multiplicity of randomly oriented discrete fibers and a multiplicity of chemically active particulates secured to the web, and methods of making and using same. In some embodiments, more than 0% and less than 10% wt. of the nonwoven fibrous web is made of multi-component fibers having at least a first region exhibiting a first melting temperature and a second region exhibiting a second melting temperature greater than the first melting temperature. In other embodiments, the discrete fibers include a first population of monocomponent thermoplastic fibers having a first melting temperature, and a second population of monocomponent fibers having a second melting temperature greater than the first melting temperature. In certain embodiments, at least some of the particulates are bonded to the fibers. In other embodiments, at least some of the particulates are secured within interstices of the fibrous web, without substantial bonding to the fibers.

Abstract: A process for the preparation of a composition comprising Al—, Ce— and Zr-oxides, which process comprises the steps of (a) preparing an aqueous solution of a mixture of metal salts of cerium, zirconium and aluminium, which aqueous solution optionally comprises one or more salts of the Rare Earth Metals other than cerium, (b) adding to the solution obtained a base at temperatures from 0° C. to 95° C. and precipitating the mixed metal salts in the form of hydroxides or oxy-hydroxides, (d) treating the aqueous suspension obtained in step (b) with a surfactant, and (e) isolating the precipitate obtained in step (d) and treating said precipitate at a temperature from 450° C. to 1200° C., which process is characterized in that the alumina content is in the range from 35 to 80% by weight, and the surface area (BET) of the composition obtained, measured according to DIN (Deutsche Industrie Norm) 66131 after calcining for 2 hours at 1100° C.

Abstract: The hydrotreating catalyst of the present invention is a hydrotreating catalyst including a catalyst support including an amorphous composite metal oxide having solid acidity, and at least one active metal supported by the catalyst support and selected from noble metals of Group 8 to Group 10 in the periodic table, wherein the hydrotreating catalyst contains a carbonaceous substance including a carbon atom, and the content of the carbonaceous substance in the hydrotreating catalyst is 0.05 to 1% by mass in terms of the carbon atom.

Abstract: The invention relates to a nickel hexaaluminate-comprising catalyst for reforming hydrocarbons, preferably methane, in the presence of carbon dioxide, which comprises hexaaluminate in a proportion in the range from 65 to 95% by weight, preferably from 70 to 90% by weight, and a crystalline, oxidic secondary phase selected from the group consisting of LaAlO3, SrAl2O4 and BaAl2O4 in the range from 5 to 35% by weight, preferably from 10 to 30% by weight. The BET surface area of the catalyst is ?5 m2/g, preferably ?10 m2/g. The molar nickel content of the catalyst is ?3 mol %, preferably ?2.5 mol % and more preferably ?2 mol %. The interlayer cations are preferably Ba and/or Sr. The process for producing the catalyst comprises the steps: (i) production of a mixture of metal salts, preferably nitrate salts of Ni and also Sr and/or La, and a nanoparticulate aluminum source, (ii) molding and (iii) calcination.

Abstract: This disclosure is directed to uses for a new crystalline molecular sieve designated SSZ-99. SSZ-99 is synthesized using a methylethyldiisopropylammonium cation as a structure directing agent.

Abstract: A catalyst composition includes a heterobimetallic zeolite characterized by a chabazite structure loaded with copper ions and at least one trivalent metal ion other than Al3+. The catalyst composition decreases NOx emissions in diesel exhaust and is suitable for operation in a catalytic converter.

Abstract: A Cu-amine complex of hydrated copper sulfate and ethylene diamine or an oligomer of ethylene diamine is employed in a direct (one-pot) synthesis of a copper-cation containing silicoaluminophosphate (SAPO) zeolite material having the Cu/SAPO-34 structure. The copper-amine complex is included in an aqueous gel of precursors of the SiO2, Al2O3, and P2O5 constituents, which are mixed, aged, and thermally treated to form the desired Cu/SAPO-34 structure. The synthesized Cu/SAPO-34 material is demonstrated to be an effective catalyst material in conversion of nitric oxide to nitrogen (using ammonia as a reductant) in synthetic exhaust streams characteristic of diesel engine and other lean-burn vehicle engine exhaust streams.

Abstract: The present invention relates to a process for the preparation of a zeolitic material comprising the steps of: (1) providing a mixture comprising one or more sources for YO2 and one or more alkenyltrialkylammonium cation R1R2R3R4N+-containing compounds as structure directing agent; and (2) crystallizing the mixture obtained in step (1) to obtain a zeolitic material; wherein Y is a tetravalent element, and wherein R1, R2, and R3 independently from one another stand for alkyl; and R4 stands for alkenyl, as well as to zeolitic materials which may be obtained according to the inventive process and to their use.

Abstract: A specimen delivery apparatus includes a housing having a backplane. The backplane includes at least one fluid communication port. The housing has an open state and a closed state. A midplane has a cavity for holding a sample. The midplane is sealed within the housing when the housing is in the closed state. A first actuator is disposed to move fluid within the housing when the housing is in a closed state and the first bulb is actuated. Various embodiments provide for caching of the fluid as well as staging to permit further preparation of the specimen prior to delivery. Various features roil the fluid to assist in extraction, mixing, and transport of the sample with the fluid. A destructible seal prevents fluid communication through the fluid communication port while the seal is intact. Communication of fluid through the fluid communication port is enabled only when the destructible seal is not intact.

Abstract: A cartridge is configured for insertion and centrifugation in a centrifuge. The cartridge includes a mixing chamber, which comprises a container that is configured for at least one first component and at least one second component and electromagnetic particles. The electromagnetic particles are movable by an electromagnetic force to mix the first and second components.

Abstract: The test strip stabilizes skin prior to incision by a lancet tip. The innovative test strip includes a pair of skin contacting tabs that apply pressure linearly to the skin to stretch the skin taut. Beneficially an incision by a lancet tip to an accurate depth can be formed on the taut skin. Moreover, pressure from the tabs is applied linearly to the skin which results in a higher ratio of pressure to surface that can be reached as compared to applying pressure laminarily to skin. Some manufacturing techniques of the skin contacting tabs include cutting or stamping through all of the layers and test area of the test strip to form these tabs. These techniques increase the manufacturing efficiency and cost savings associated with test strips and integrated lancet testing devices. Contamination from other sampling events is eliminated since the test strips are disposed of after each use.

Abstract: The present invention concerns the use of a microporous organogel for trapping fluids by adsorption and/for the controlled release of fluids after solubilization. The fluids are particularly air or water polluting agents or volatile substances. The invention also concerns the use of a microporous organogel in a method for analyzing the trapped fluids. The invention also concerns any fluid trap obtained by molding a microporous organogel.

Abstract: The present invention relates to a method and a device for determining a concentration of a biological active substance in a sample by the means of an enzyme-linked immunosorbent assay (ELISA). The device comprises a solid support within a tubing (17) for binding an immunosorbent and an inlet (18, 19) for fluids, a detector (15) for detecting radiation due to an activity in said tubing (17), wherein said tubing (17) is arranged inside a microchip (10) extending substantially in one plane, for conducting the fluids along the plane of the microchip (10). Said tubing (17) forms a reaction cell having a large detection area (22). The reaction cell of the microchip (10) is arranged perpendicular to the detector (15).

Abstract: The invention relates to immunoassays, methods for carrying out immunoassays, immunoassay kits and methods for manufacturing immunoassay kits. In particular, the invention has relevance to capillary (especially microcapillary) immunoassay technology.

Abstract: A centrifugal force-based microfluidic device for a multiplexed analysis and an analyzing method using the same are provided. The microfluidic device includes a platform and a microfluidic structure including a plurality of chambers formed within the platform and valves positioned between the chambers. The microfluidic structure includes a sample separation chamber connected to a sample injection hole and a plurality of reaction chambers accommodating two or more types of markers specifically reacting to different types of target materials, separately by type.

Abstract: Devices and methods for the detection of analytes are disclosed. Devices and methods for detecting food-borne pathogens are disclosed.

Abstract: The present disclosure provides a container containing reference solution for clinical chemistry, whereby the container includes a closure part-covered outlet at which reference solution can be removed by puncturing with a puncturing element. The disclosure further provides a wick that is soaked with the reference solution and arranged in the container to extend from the outlet and such that a majority of its length extends into an interior space of the container.

Abstract: A nucleic acid amplifier for carrying out a nucleic acid amplification reaction is disclosed. The amplifier includes a plurality of wells configured to carry out the nucleic acid amplification reaction. The amplifier also include a heating unit provided for every well. The amplifier further includes a light source for irradiating excitation light of a specified wavelength to all of the wells. A fluorescence detection unit is provided for every well.

Abstract: The present invention provides a miniaturized microfluidic device with a heater that has a simple structure without needing adhesion means for improving the heat transfer between the heater block and the device, and which can form the uniform temperature regions. Disclosed is a microfluidic device, including: a substrate; a reaction flow path formed on the substrate; and a temperature adjustment heater for heating the reaction flow path, in which a reaction flow path formation region including the reaction flow path formed therein and a temperature adjustment heater formation region including the temperature adjustment heater formed therein are alternately arranged on the substrate, the reaction flow path is formed to be bent at least one time in the reaction flow path formation region, and the temperature adjustment heater is formed to be bent at least one time in the temperature adjustment heater formation region.

Abstract: A thermal cycler includes a holder that holds a biotip filled with a reaction mixture and liquid having a smaller specific gravity than the reaction mixture and being immiscible with the reaction mixture, the biotip including a channel in which the reaction mixture moves, a heating unit that heats a first portion of the channel when the biotip is in the holder, and a driving unit that disposes the holder and the heating unit by making a switch between a first disposition and a second disposition, the first disposition being such that the first portion is in a lowest part of the channel with respect to a gravitational force direction when the biotip is in the holder, the second disposition being such that a second portion that is a different portion from the first portion relative to a moving direction of the reaction mixture is in the lowest part of the channel with respect to the gravitational force direction when the biotip is in the holder.

Abstract: Compositions, methods and systems are provided for the isolation of polymerase-nucleic acid complexes. Complexes can be separated from free enzyme by using hook molecules to target single stranded regions on the nucleic acid. Hook oligonucleotides are used to capture polymerase nucleic acid complexes where the nucleic acids comprise circular nucleic acids having a double stranded central region with hairpin regions on each end. Methods for loading such complexes onto substrates and for single molecule sequencing of such complexes are also provided.

Abstract: A jaw crusher with a double-crank-rocker mechanism includes: a frame (1); a fixed jaw plate (6); a movable jaw plate (5); a crank-rocker device and a driving wheel (2); wherein the crank-rocker device includes a front crank-rocker mechanism; and a rear crank-rocker mechanism. The front and rear crank-rocker mechanisms are provided on the same eccentric drive shaft (3) for forming a jaw crusher with a single eccentric driving shaft, or the front and rear crank-rocker mechanisms are respectively connected to a front eccentric driving shaft (15) and a rear eccentric driving shaft (14) rotating synchronously by the driving wheel (2) for forming a jaw crusher with double eccentric driving shafts. The front and rear crank-rocker mechanisms are utilized for changing mechanical structure characteristics of the bottom of the swinging jaw and greatly improving functionality of the jaw crusher.

Abstract: A flow disrupter in a tube chamber of a tube assembly for homogenizing sample materials includes a flow-disrupting body that extends generally transversely into the tube chamber and divides the tube chamber into two sub-chambers. The flow-disrupting body includes at least one narrowed flow passageway through which the sample flows back and forth in both axially reciprocating directions as the tube assembly is vigorously shaken at high speeds faster and more reliably than what can be accomplished by hand shaking. And the flow-disrupting body includes at least two flow-interrupting surfaces facing generally in opposite axial directions and against which the sample impacts in each respective axially reciprocating direction as the tube assembly is vigorously shaken. In this way, the vigorous high-speed shaking of the tube assembly including the flow disrupter results in significant particle-size reduction of the sample by mechanical shear, fluid shear, cavitation, and/or pressure differentials.

Abstract: Some of the embodiments described herein relate to liner elements such as lifter bars that can be used in grinding mills. In one example, a lifter bar has a top elastomeric layer and a bottom elastomeric layer, the composition of the top elastomeric layer being different from that of the bottom elastomeric layer. In another example, a lifter bar is constructed from carbon black-reinforced natural rubber and has a leading face and a protrusion at a top region of the leading face. In a further example, a lifter bar is fabricated from carbon black-reinforced natural rubber and has a leading face geometry such that face angle ? remains 25° or less over an operational period measured form the time the lifter bar is new, until the height of the lifter bar is reduced by a certain amount, e.g., by 80%. Also disclosed are methods for manufacturing an elastomeric liner element and for grinding an ore.

Abstract: A method of fabricating a liner component for a grinding mill is described, the method including the steps of: providing a plate of hard material; cutting the plate to form a plurality of inserts, at least some of the inserts including a formation for mechanically engaging with a body of a resilient material; arranging the inserts in a mould, and—adding resilient material to the mould to form a resilient material body around the inserts to thereby form the liner component.

Abstract: A cutting blade assembly establishes a bidirectional and/or multifaceted scissor-type cutting action to efficiently and effectively process various types of debris encountered by the cutting blade assembly. The assembly includes a cutting plate and a cutting hub configured for relative rotation. A cutting slot is formed in the cutting plate and intersects the axial face to define a cutting edge at the intersection of the cutting slot and the axial face. The cutting hub has a cutting arm positioned adjacent to the axial face. When the cutting plate and the cutting hub undergo relative rotation, the cutting arm passes adjacent to the cutting edge to perform a scissor-type cutting action.

Abstract: A method and apparatus for disintegrating an elastomer is provided. The elastomer is moved across a base relative to a cutting tool and toward the cutting tool. The cutting tool has a cutting wedge, which has a cutting edge and a rake face adjacent to the cutting edge. After the cutting wedge comes into contact with the elastomer, the elastomer is first at least partially compressed only by the rake face between the rake face and the base before the cutting edge cuts through the elastomer. An elastic evasive movement of the elastomer is avoided because of the initial planar compression of the elastomer by the rake face. Thus, it is possible to cut off significantly thinner pieces from the elastomer.

Abstract: A paper shredder includes a housing, cutters positioned in the housing, and a feeder base coupled to the housing and adapted to support a stack of papers. The feeder base includes a feeder slot through which paper passes for shredding in the cutters. The feeder base further includes an aperture formed in the feeder base at a location spaced from the feeder slot. The aperture provides a pathway between a top surface of the feeder base and a waste area below the feeder base and has an edge with multiple surfaces that enhance an ability of the edge to peel away sheets of paper from the stack.

Abstract: A magnetic inline filter is provided. A piston rod of a fluid cylinder is retracted to the top to locate an inner circumferential surface side magnet and an outer circumferential surface side magnet in filtration positions opposed to a space. In this state, a solenoid of a changeover valve is actuated to shut off a discharge port. A coolant is introduced into the space from an introduction port in the vicinity of the lower end of an outer pipe. Since a magnetic field in a radiation direction is intense, chips in the coolant are attracted to wall surfaces on both sides of the space and the coolant is filtrated. When the supply of the coolant is continued, the chips attracted to the wall surfaces are accumulated and bridged. As a result, since the coolant passes through gaps of the bridged chips, it is possible to perform precise filtration.

Abstract: An electromagnetic drum for magnetic separator comprises a cylindrical structure (6) of ferromagnetic material provided with a plurality of solenoids (2a, 2b) wound on pole bodies (1a, 1b) having pole shoes (3a, 4a; 3b, 4b) arranged at the radially distal end thereof, said pole bodies (1a, 1b) and the solenoids (2a, 2b) wound thereon being all arranged on a same side of a longitudinal midplane of the drum, the solenoids (2a, 2b) having their axes substantially perpendicular to the longitudinal drum axis and each pole body (1a, 1b) extending mainly in a plane substantially perpendicular to said drum axis and substantially parallel to the planes of the other pole bodies (1a, 1b). Such a drum can provide a magnetic field suitable to draw even very large and heavy ferromagnetic scrap without having to face polarity changes along the circumferential path and while retaining cost and size similar to conventional drums.

Abstract: A waste collection device configured to remove magnetically-sensitive particles from the air includes a main body, a collection mechanism, an air inlet mechanism, an air exhaust mechanism, and a discharge mechanism. The main body includes a cover, an electric controller, a partition, and a cavity. The partition divides the cavity into a first cavity and a second cavity. The collection mechanism includes a plurality of dust deposition portions received in the first and second cavities. Each dust deposition portion is electrically powered and includes a plurality of dust deposition plates. The air inlet mechanism includes a first wind shield coupled to the first cavity and a second wind shield coupled to the second cavity.

Abstract: A device for purifying air from non-desired gases and particles, in the case of nuclear power plants from radiating particles and gaseous iodine, and for extermination of microorganisms and removal from the air. The device includes a purifying chamber through which the air to be purified is arranged to flow. In the structurally grounded purifying chamber ionized air (1) is led to a water dust or vapor which can be oxidized with hydrogen peroxide (6) and by increasing the voltage level of the ionization to produce ozone and to be led further to high voltage operated ion blast tips (8) producing a continuous ion jet, which is directed onto collecting surfaces (9) and taking with it droplets, particulate materials and gaseous components connected to them. The volume of the air to be purified determines the shape and volume of the purifying device.

Abstract: A flotation apparatus may include a flotation chamber having a side wall and a base, a stirrer, a sparging device associated with the stirrer, a first foam-collecting device arranged in an upper region of the flotation chamber for the purpose of collecting a foam product formed during the flotation process, and a charge line for charging the flotation chamber with pulp, wherein the charge line leads into the flotation chamber at a point above the stirrer and an ejector is present in the charge line. Further, a flotation method is performed in two stages inside a flotation chamber of a flotation apparatus, wherein an ejector is used in a first flotation stage and a stirrer is used in a second flotation stage.

Abstract: The present invention relates to a mineral processing technology and method for refractory chalcopyrite ores, particularly to a mineral processing technology and method for the separation of chalcopyrite from multiple natural types of copper ores containing chalcopyrite, pyrrhotite, talc and serpentine, which belongs to the technical field of mineral processing. It's characterized by: conducting a two-stage grinding on the chalcopyrite ore, with each grinding stage followed by size grading, and treating ores in different size fractions separately, wherein coarse-grain ores are separated in the presence of xanthate, with calcium oxide and CMC controlling the pH and acting as depressor respectively, while fine-grained ores are subjected to rougher in the presence of kerosene, and subsequently subjected to cleaner in the presence of xanthate.

Abstract: An inlet device for a centrifugal separator for directing the liquid mixture that is to be separated from an inlet pipe to a separation chamber is rotatable around a central rotational axis. The inlet device includes a central conical receiving structure arranged around the axis and including a central receiving zone for receiving the liquid mixture from the inlet pipe and wherein the zone surrounds the apex of the conical receiving structure. The inlet device further includes at least one inlet channel for directing the liquid from the receiving zone to the separation chamber, wherein the channel extends from the periphery of the receiving zone and spirals down the outer surface of the conical receiving structure. Further, the at least one inlet channel extends from the receiving zone in a direction that forms an angle ? with the tangent of the periphery of the receiving zone and ? is less than 90°.

Abstract: A device (1) for separation of particles from a flow of gas is described. The device (1) comprises a first cyclone generator (6) comprising a first cyclone tube (8) with a length axis (4) and a first blocking means (9) arranged so that an annular first inlet (10) is arranged between the first cyclone tube (8) and the first blocking means (9). A first vortex generator (11) is arranged in the first inlet (10). The device comprises a further cyclone generator (12) comprising a further cyclone tube (13) with a length axis (4) and a further blocking means (14) arranged so that an annular further inlet (15) is arranged between the second cyclone tube (13) and the further blocking means (14), and a further vortex generator (16) arranged in the further inlet (15), and an outlet tube (22) comprising an outlet (23) and a length axis (4), which outlet tube (22) is arranged concentric in relation to the second cyclone tube (13).

Abstract: The present invention aims to provide a water faucet which allows a large space to be secured above the washing area and yet can deliver a high washing performance by landing streams or waterdrops having a large cross-sectional area evenly on a piece to wash. This water faucet includes a flow velocity changing part which changes the flow velocity of the stream discharged from each of multiple water spray holes such that the cross-sectional area of the stream changes with time. The multiple water spray holes are disposed at intervals such that, when the cross-sectional area of one stream discharged from one water spray hole exceeds a predetermined size, the one stream is merged with one of the other streams discharged from the multiple other water spray holes adjacent to the one water spray hole, and such that the one of the other streams with which the one stream merges changes with time.