24 results about "PARTICLE SIZE REDUCTION" patented technology

In some aspects, the present disclosure pertains to a method of forming radiopaque crosslinked hydrogel particles comprising (a) mixing a reactive multi-arm polymer comprising a plurality of cyclic imide ester groups, a reactive multifunctional compound comprising a plurality of amino groups, and a radiocontrast agent under conditions in which a pH environment surrounding the reactive multi-arm polymer, the reactive multifunctional compound and the radiocontrast agent increases from an acidic pH to a basic pH, thereby forming a radiopaque hydrogel and (b) subjecting the hydrogel to a particle size reduction process, thereby forming the radiopaque crosslinked hydrogel particles. Other aspects of the present disclosure pertain to radiopaque crosslinked hydrogel particles formed from such methods, suspensions of such radiopaque crosslinked hydrogel particles, and medical supplies that contain such radiopaque crosslinked hydrogel particles.

The present invention relates to a method for making an electrode provided with a catalytic coating for electrocatalytic processes, preferably gas evolution electrode, comprising: a- providing a precursor comprising salts of metals, wherein said metals are selected from a group consisting of combinations of one or more noble metal with one or more rare earth metal, b- heating said precursor to a temperature comprised between 300 and 700oC under oxygen or air, thus obtaining a dried powder comprising oxides of said metals, c- preferably, subjecting the dried powder to a process of particle size reduction, d- optionally storing or transferring said dried powder, e- dispersing said dried powder in a liquid thus obtaining a catalytic dispersion, f- applying said catalytic dispersion by a coating technique on a thermally unstable substrate thus forming a coated substrate, g- drying said coated substrate thus forming said electrode provided with a catalytic coating

A method, system and machine for cold processing extruded starch-containing pellets by cold particle size reducing pellets of a size greater than a particle size reduction setting size enabling particle size reduction to be performed without compacting or compression any size reduced particle while doing so without heating them during particle size reduction thereby preserving their pores, internal liquid absorbing voids and starch matrix optimizing granular sorbent performance. Such a method, system and machine is selectively controllable enabling not only control of how many and a ratio of fines produced relative to the final product providing real time control of fines production but also is able to provide particle size distribution control as well. A preferred particle size reduction machine is a roll granulator that breaks larger size pellets into smaller sized particles and / or fines without compressing or compacting them with the spacing between the rolls selectively variably in a manner that regulates how much of different sized particles and / or particles falling within certain size ranges are produced advantageously enabling real time control of particle size distribution to be achieved during extruder line operation.

The present invention mainly relates to a process for preparing sub-micrometer-sized graphitic carbon nitrides, comprising a step of milling or sonicating graphitic carbon nitrides. The present invention also relates to a sub-micrometer-sized graphitic carbon nitride having a volume size distribution in which the particle size of less than 1 μm dominates more than 50% of a volume of total particles in the suspension.

The application relates to the technical field of sodium ion batteries, in particular to a Prussian blue sodium ion battery positive electrode material and a preparation method and application thereof. In the preparation method, when the Prussian blue sodium ion battery positive electrode material is prepared, a specific complexing agent (mellitic acid, methane tricarboxylic acid or nitrilotriacetic acid) is selected, and a non-ionic surfactant is added, so that the growth of the Prussian blue material can be guided, and problems such as particle size reduction and uneven distribution caused by excessively high concentration when a conventional complexing agent such as sodium citrate is used can be overcome. The preparation method can not only improve the sodium content of the prepared Prussian blue material, thereby improving the specific capacity of the material, but also control the nucleation and growth speed of the obtained Prussian blue material, form a large-size single crystal, and the low-defect structure of the single crystal is beneficial to extremely low metal ion dissolution, excellent specific capacity and excellent Na + diffusion kinetics, and alleviates the rate and capacity attenuation caused by the long sodium ion diffusion path of the polycrystalline structure.

A closed structure for receiving fog from a fog-generating device. The fog is composed of water particles and an active substance capable of being aerosolized. Within the closed structure are a plurality of spaced redirection surfaces; these surfaces define flow paths along which the fog must travel. Fog particles collide with or pass close to the redirection surfaces, causing the larger fog particles to fall out of the fog flow path, while the smaller fog particles continue along the fog flow path and eventually exit the closed structure. After exiting, the fog particles impact a target, and the active substance within them treats the target.

The invention comprises a method of sequestering carbon dioxide. The method comprises delivering hyaloclastite, a volcanic glass or pumice to a mill capable of reducing the particle size of the hyaloclastite, a volcanic glass or pumice; processing the hyaloclastite, a volcanic glass or pumice in the mill so that the processed hyaloclastite, a volcanic glass or pumice has a volume-based mean particle size of less than or equal to 40 μm; and exposing the hyaloclastite, a volcanic glass or pumice to carbon dioxide in gaseous, liquid or solid form during or after the particle reduction process.

The utility model discloses a pumping device for a fire retardant coating curing agent, and relates to the technical field of fire retardant coating conveying equipment. The stirring trolley comprises a trolley body and a stirring tank, supporting assemblies are arranged on the top face of the trolley body and the surface of the stirring tank so as to enable the trolley body and the stirring tank to be in an overhead state, a stirring assembly is arranged on the stirring tank, and a metal screen is fixedly connected into the stirring tank in an inserted mode. According to the utility model, the trolley body and the stirring tank are overhead through the supporting assembly, so that the stirring tank is located at a proper position, when the rotating part of the stirring assembly rotates, the grinding assembly arranged on the rotating part rotates along with the rotating part, and the grinding assembly grinds a large-particle fire-retardant coating curing agent in the metal screen mesh while stirring, so that the fire-retardant coating curing agent is uniformly stirred; the particle size of the curing agent particles is reduced, so that the curing agent particles can be conveniently and uniformly mixed with the fireproof coating subsequently, blockage in the pumping process is prevented, and the pumping process is ensured to be smoothly carried out.

The present invention relates to a particle size reduction process using inert gas for preparation of nitrosamine free Cinacalcet salt. Wherein, Cinacalcet salt is substantially free of nitrosamine impurities.

A method for thermal processing and catalytic cracking of a biomass to effect distillate oil recovery can include particle size reduction, slurrying the biomass with a carrier fluid to create a reaction mixture, slurrying a catalyst with a carrier fluid to create a catalyst slurry, heating the reaction mixture and / or the catalyst slurry, and depolymerizing the reaction mixture with the catalyst. The reaction mixture can undergo distillation and fractionation to produce distillate fractions that include naphtha, kerosene, and diesel. In some embodiments, thermal processing and catalytic cracking includes vaporization of the biomass followed by distillation and fractionation. In some embodiments, a resulting distillate can be used as a carrier fluid. In some embodiments, the method can include desulfurization, dehydration, and / or decontamination.

The invention relates to a coal gangue powder surface activation, dispersion and modification preparation method, which comprises the following steps: 1, raw material preparation: taking coal gangue with the particle size of less than or equal to 50mm, calcining the coal gangue in an oxidizing atmosphere at 900 DEG C for 3 hours, and naturally cooling; 2, mechanical pre-activation: crushing and screening the calcined coal gangue raw ore, mixing with a grinding aid, and putting into a planetary ball mill to obtain pre-activated coal gangue powder with the particle size of less than 60 microns and the specific surface area of about 500m < 2 > / kg; 3, gradient thermal activation: putting the coal gangue powder pre-activated powder into a tubular furnace, and naturally cooling to obtain thermal activated powder; and 4, composite interface modification. According to the preparation method, mechanical pre-activation (particle size reduction and lattice destruction), gradient thermal activation (step-by-step impurity removal and phase change) and composite interface modification (organic functional group grafting and dispersant coating) are combined, and integrated regulation and control of structure activation, surface modification and dispersion stability are achieved.

The invention discloses a method for synergistically degrading micro-plastics by copper ions and laccase, which comprises the following steps: simultaneously adding laccase and copper ions into a buffer solution to form a reaction system; adding the micro-plastic into the reaction system and dispersing; carrying out degradation reaction under a constant-temperature oscillation condition; and evaluating the degradation effect of the reacted micro-plastic in at least one mode of morphology characterization, mass loss, surface oxidation analysis or product detection. According to the application, the degradation efficiency is greatly improved, the synergistic treatment group shows the most obvious microplastic particle size reduction and mass loss macroscopically, and microplastic surface erosion, pores and spalling are observed through an SEM image microcosmically. The method is mild in condition and environment-friendly, the reaction is carried out under the mild condition that the pH is close to neutral and the temperature is 40 DEG C, high-temperature, high-pressure or strong chemical reagents are not needed, and a new green way is provided for microplastic pollution treatment.

The invention belongs to the field of wheat bran crushing, and particularly relates to a method and system for improving wheat bran crushing efficiency. According to the invention, the wheat bran is treated by using the atmospheric pressure cold plasma jet, so that the crushing resistance of the wheat bran can be reduced, finally, the crushing efficiency of the wheat bran is improved in the crushing process, and a better particle size reduction effect is realized. Specifically, by means of the method, the wheat bran smashing efficiency can be remarkably improved, the highest improvement of 50.72% is achieved, and the great efficiency improvement is directly converted into productivity improvement and energy consumption reduction. The method can also effectively reduce the overall particle size of the wheat bran, and the maximum particle size can reach 15.62%, so that the processability and palatability in various applications of the wheat bran are improved.

To provide a method for manufacturing positive electrode active material nanoparticles for a lithium ion secondary battery that can achieve both effective carbon support and particle size reduction.SOLUTION: A method for manufacturing positive electrode active material nanoparticles for a lithium ion secondary battery is represented by the formula (A): LiaMnbFecMxPO4, and is configured such that carbon is supported, and includes the following steps of (I) mixing a lithium compound, a metal compound containing at least a manganese compound and / or an iron compound, a phosphoric acid compound, and water to obtain slurry water i, (II) adding conductive carbon material and ammonia nitrogen to the obtained slurry water i all at once at a mass ratio of the amount of conductive carbon material added to the amount of ammonia nitrogen added (conductive carbon material: ammonia nitrogen) of 1:1 / 25 to 1:1 / 2 to obtain slurry water ii, and (III) subjecting the obtained slurry water ii to a hydrothermal reaction and then firing it to obtain nanoparticles.SELECTED DRAWING: None

Provided herein are methods for the disassembly of epoxy-based polymers (EBPs) or fiber- reinforced EBPs (FREBPs). The methods may comprise any one or more of the following: (1) subjecting a raw material comprising one or more epoxy-based polymers to a particle size reduction step, thereby producing a particulate starting material; (2) combining a particulate starting material comprising an epoxy -based polymer and an aqueous base component to produce a heterogenous reaction mixture; (3) conducting a heterogenous reaction within the heterogenous reaction mixture, thereby producing a product mixture; and (4) recovering one or more desirable chemical products from the product mixture.

The invention relates to a method for recycling waste refractory products which are initially arranged in a working position in a thermal plant and which are contaminated by alkaline cyanides, the method comprises the following successive steps: a)-removing the waste refractory product from the working position,-reducing the particle size of the waste refractory product to obtain a particle mixture; b) contacting the particle mixture with a solution comprising a thiosulfate compound or a "thiosulfate solution" before and / or during the removal, and / or between the removal and the particle size reduction, and / or during the particle size reduction of step a) and / or after step a), to obtain a two-phase mixture; and e) separating the liquid phase from the two-phase mixture and using the particle mixture to produce a new refractory product.

A refinement process to reclaim aggregates derived from municipal solid waste incineration (MSWI) bottom ash is tailored for use in the asphalt and cement industries. Initial size reduction achieves market-specific gradation to liberate fused particles, followed by magnetic separation for the recovery of ferrous and non-ferrous metals. The aggregate material undergoes density separation to remove organic contaminants and heavy metal-bearing particles across size-specific fractions. Finally, a targeted wash cycle using neutral pH water reduces the chloride concentrations of the final aggregate product. This multi-stage process produces a reclaimed aggregate with controlled absorption, loss on ignition, and contaminant levels, enabling its safe and effective use in encapsulated construction applications.

Provided are a conductor dispersion solution including a carbon-based conductor, a first dispersant including a vinyl-based polymer containing a nitrogen atom, a second dispersant including a primary component and an auxiliary component, and a dispersion medium, and a method for manufacturing the same. The primary component includes a cellulose-based polymer, the auxiliary component includes at least one of a lactone-based polymer and a glycol-based polymer, and by manufacturing a conductor dispersion solution simultaneously including the first dispersant and the second dispersant, a particle size reduction of dispersed particles in the dispersion solution and a viscosity reduction of the dispersion solution are induced, so that the carbon-based conductor can have a characteristic of being uniformly and effectively dispersed in the dispersion solution.

The invention provides cooked pseudo-ginseng and a preparation method thereof, and belongs to the technical field of traditional Chinese medicine processing. The preparation method comprises the following steps: crushing raw pseudo-ginseng, and mixing and infiltrating with water to obtain moistened pseudo-ginseng; steaming and drying the moistened pseudo-ginseng to obtain cooked pseudo-ginseng; the particle size of crushing is 2-4 mm, and the infiltration time is 2 h. According to the invention, the tissue structure of panax notoginseng is effectively softened by adopting moisture infiltration, and the cell wall permeability and thermal conversion efficiency of ginsenoside are remarkably improved by utilizing a synergistic effect mechanism between particle size reduction and optimized moisture infiltration. The specific steaming temperature and time balance the conversion rate and the potential thermal degradation risk, the maximum accumulation of the target rare saponin is realized, and the yield of Rk3, Rh4, 20 (S)-Rg3 and 20 (R)-Rg3 is obviously improved. The'moisture activation-gradient temperature control 'strategy is synergistically optimized from physical and chemical kinetics levels, and is a core mechanism for solving the problem of large batch difference and improving the uniformity and activity of cooked pseudo-ginseng products.

The invention relates to a method for reusing a used refractory product initially placed, in a service position, within a thermal installation and contaminated by an alkaline cyanide compound, said method comprising the following successive steps: a) - extraction of the used refractory product from the service position, - particle size reduction of the used refractory product so as to obtain a particulate mixture; b) before said extraction and / or during said extraction, and / or between said extraction and said particle size reduction and / or during said particle size reduction of step a) and / or after step a), contacting the particulate mixture with a solution comprising a thiosulfate compound, or "thiosulfate solution", so as to obtain a two-phase mixture; e) separation of the liquid phase from the two-phase mixture and use of the particulate mixture to manufacture a new refractory product. No abstract figure.

The invention belongs to the technical field of preparation of lithium-based compounds, and particularly relates to a preparation method of nano lithium sulfide suitable for a sulfide electrolyte system, which comprises the following steps: carrying out ball milling on lithium sulfide to be refined by adopting a small-diameter zirconium oxide ball and medium-speed ball milling mode, and carrying out interface modification on the lithium sulfide subjected to ball milling by adopting a surface modifier to obtain the nano lithium sulfide. The surface modifier is adsorbed on the surface of lithium sulfide to reduce interface energy, reagglomeration of refined particles is inhibited, and a uniformly dispersed suspension is prepared. And removing the dispersing agent in the suspension through spray drying or vacuum freeze drying to obtain refined lithium sulfide. The preparation method for realizing the particle size reduction of the lithium sulfide by optimizing a ball milling process and regulating and controlling an auxiliary agent is suitable for efficient synthesis of sulfide solid electrolyte, efficient refining (D50lt, 300nm) of Li2S particles is realized, and the reaction efficiency of the Li2S particles and P2S5 is improved.

A method for thermal processing and catalytic cracking of a biomass to effect distillate oil recovery can include, particle size reduction. slurrying the biomass with a carrier fluid to create a reaction mixture, slurrying a catalyst with a carrier fluid to create a catalyst slurry, heating the reaction mixture and / or the catalyst slurry, and depolymerizing the reaction mixture with the catalyst. The reaction mixture can undergo distillation and fractionation to produce distillate fractions that include naphtha, kerosene, and diesel. In some embodiments, thermal processing and catalytic cracking includes vaporization of the biomass followed by distillation and fractionation. In some embodiments, a resulting distillate can be used as a carrier fluid. In some embodiments, the method can include desulfurization, dehydration, and / or decontamination.

The present invention relates to a method for producing cocoa butter infused with freeze-dried fruit powder using a melanger. The method ensures homogeneous integration of fruit powder into cocoa butter, enhancing flavor, color, and nutritional benefits while maintaining a smooth and creamy texture. The use of a melanger enables uniform particle size reduction and dispersion of the fruit powder, resulting in a versatile product suitable for culinary, cosmetic, and functional applications.

In some aspects, the present disclosure pertains to a method of forming radiopaque crosslinked hydrogel particles comprising (a) mixing a reactive multi-arm polymer comprising a plurality of cyclic imide ester groups, a reactive multifunctional compound comprising a plurality of amino groups, and a radiocontrast agent under conditions in which a pH environment surrounding the reactive multi-arm polymer, the reactive multifunctional compound and the radiocontrast agent increases from an acidic pH to a basic pH, thereby forming a radiopaque hydrogel and (b) subjecting the hydrogel to a particle size reduction process, thereby forming the radiopaque crosslinked hydrogel particles. Other aspects of the present disclosure pertain to radiopaque crosslinked hydrogel particles formed from such methods, suspensions of such radiopaque crosslinked hydrogel particles, and medical supplies that contain such radiopaque crosslinked hydrogel particles.