72results about How to "Enhanced particle density" patented technology

An object of the present invention is to provide nickel cobalt manganese composite hydroxide particles having a small particle diameter and a uniform particle size distribution, and a method for producing the same.

[Solution]

A method for producing a nickel cobalt manganese composite hydroxide by a crystallization reaction is provided. The method includes: a nucleation step of performing nucleation by controlling a pH of an aqueous solution for nucleation including metal compounds containing nickel, cobalt and manganese, and an ammonium ion donor to 12.0 to 14.0 in terms of the pH as measured at a liquid temperature of 25° C. as a standard; and a particle growth step of growing nuclei by controlling a pH of an aqueous solution for particle growth containing nuclei formed in the nucleation step to 10.5 to 12.0 in terms of the pH as measured at a liquid temperature of 25° C. as a standard.

An abrasive tool includes a substrate, a plurality of abrasive particle groups, and a bonding layer. The abrasive particle group consists of a plurality of abrasive particles grouped together. The abrasive particle groups are disposed in a regular pattern on the surface of the substrate and fixed on the surface by the bonding layer. To control the disposition of the abrasive particle groups, an abrasive particle template is used to form the required pattern. The size of the abrasive particle positioning holes on the template is used to adjust the number of particles in an abrasive particle group.

Disclosed are: nickel complex hydroxide particles that have small and uniform particle diameters; and a method by which the nickel complex hydroxide particles can be produced. Specifically disclosed is a method for producing a nickel complex hydroxide by a crystallization reaction, which comprises: a nucleation step in which nucleation is carried out, while controlling an aqueous solution for nucleation containing an ammonium ion supplying material and a metal compound that contains nickel to have a pH of 12.0-13.4 at a liquid temperature of 25° C.; and a particle growth step in which nuclei are grown, while controlling an aqueous solution for particle growth containing the nuclei, which have been formed in the nucleation step, to have a pH of 10.5-12.0 at a liquid temperature of 25° C. In this connection, the pH in the particle growth step is controlled to be less than the pH in the nucleation step.

The present invention provides methods of forming uniform nanoparticle based monolayer films with a high particle density on the surface of a substrate comprising (a) forming a surface modifying layer on a substrate using a material comprising a first functional group that chemically binds to the substrate and a second functional group comprising a group capable of forming van der Waals forces, (b) applying to the surface modifying layer a solution comprising nanoparticles, and (c) curing the resultant structure formed at step (b) for a predetermined time to form a nanoparticle based monolayer film. The present invention further provides substrates and devices comprising the nanoparticle based monolayer films.

The pre-EGR gas cooler 1 for cooling the EGR gas introduced from the EGR pipe, and an post-EGR gas cooler for introducing the pre-EGR gas cooled in the EGR gas cooler 1 to cool it to a target cooling temperature are coupled in series, and an EGR valve is mounted for controlling the flow rate of the EGR gas between the pre-EGR gas cooler 1 and the post-EGR gas cooler 3. According to the invention, EGR gas cooling apparatus with improved durability can be obtained, and EGR valves with low product cost and high storage efficiency can be provided.

An intake system for the combustion air of a motor of a hand held implement is provided. The system includes an air filter and a centrifugal separator. The air filter has a dirt chamber and a clean chamber that is separated therefrom by a filter medium. The clean chamber is fluidically connected with a carburetor of the motor to convey combustion air to the motor. The centrifugal separator splits the air stream into a core flow having low particle density and a peripheral flow having high particle density. The centrifugal separator includes at least two cyclones, wherein the discharged flows from the cyclones are respectively combined in pairs and open out into a common suction tube.

A composite adsorbent includes a shaped substrate having an adhesive film on a portion of at least one side and an adsorbent that has been immobilized as a layer on the adhesive portion of the substrate. The composite adsorbent is designed to be shaped into a form that provides a high adsorption capacity, low pressure drop, high volume capacity, and fast adsorption kinetics to effectively adsorb odors over an extended period of time. Optionally, the composite adsorbent is also used in combination with an air permeable unit wherein it is advantageously positioned to provide enhanced adsorption of contaminants found in gas phase.

In a fuel injection valve, a substantially arc-shaped chamfered portion in a substantially arc shape of cross section is formed on an edge of an inner wall portion of each opening end of a corresponding nozzle hole of a nozzle plate to further expand a whole diameter of an injection stream of fuel passed through a plurality of obliquely penetrated nozzle holes. In a manufacturing method for the nozzle plate, circulating a fluid mixed with an abrasive through each nozzle hole is carried out to polish opening ends of the respective nozzle holes which are faced against the external of the fuel injection valve in a form of substantially arc shape of cross section with the abrasive. Furthermore, grinding the respective major surfaces of a punched plate material which becomes the nozzle plate together with vicinities to the respective opening ends of the nozzle holes is carried out.

The present invention relates to a high-intensity earthen granular filter material for water treatment and its production method. It includes base body and additive, in which said base body can adoptany one of kaoline, wheat-ball stone, bentonite, shale rock and flyash or mixture of more than two materials of them, and the described additive can adopt any one of iron ore, saw dust, coal powder, heavy oil, furfural dregs or polyvinyl glycol or mixture of more than two materials of them. Its production method includes the processes of granulation and sintering.

The invention discloses a production method of a formula feed for meat geese and provides a new production process with optimal formulation according to the food and disease characteristics of meat geese. The method includes the steps of saccharifying corn straws and sweet potato seedlings, which are easily available, have wide sources and high fiber content, to convert hard crude fibers into soft materials containing xylitol, mixing the saccharified materials with green plants (such as cucumber, witloof and wild buckwheat) with nutritional and health-care functions and low production costs and processed potatoes, pumpkins, bone powder and the like, granulating and drying to produce the nutritional and health-care daily feed for geese, which is rich in dietary fiber, pectin, plant protein and vitamins, can promote appetite, meet the herbivorous habit of geese and promote goose growth, and has the functions of clearing away heat and toxic materials and relaxing bowel. The feed has a high return rate, is convenient in feeding, is high in palatability due to a high saccharified material proportion in a formula, and solves the annual supply problem of feeds in autumn and winter and for large-scale goose breeding.

To provide nickel composite hydroxide particles having a small and uniform particle diameter and a method for producing the same.

The method for producing the nickel composite hydroxide particles includes: a nucleation step of producing nuclei including primary particles by controlling a pH of an aqueous solution for nucleation to 11.5 to 13.2 at a liquid temperature of 25° C., the aqueous solution for nucleation containing a metal compound having an atomic ratio of metals corresponding to an atomic ratio of metals in the nickel composite hydroxide particles and substantially not containing a metal complex ion-forming agent; and a particle growth step of forming, on an outer surface of each of the nuclei, an outer shell portion including platy primary particles larger than primary particles of the nuclei by controlling a pH of an aqueous solution for particle growth containing the nuclei obtained in the nucleation step to 9.5 to 11.0 at a liquid temperature of 25° C.

The invention relates to a method for using signal molecules for accelerating repair of disintegrated aerobic granular sludge. According to the method for using the signal molecules for accelerating repair of the disintegrated aerobic granular sludge, by adding the exogenous AHLs signal molecules to repair the disintegrated the aerobic granular sludge, in a process of repairing structures of the disintegrated aerobic granular sludge, regranulation of the crushed granular sludge is accelerated, after 20-30 days, the disintegrated aerobic granular sludge is basically and completely repaired, therepaired aerobic granular sludge is smooth in particle surface, regular in shape and compact in structure, and has good settling performance, after adding of the exogenous AHLs is stopped, the granular sludge structures are still intact, and the settling performance and the granule density remain at high levels. According to the method for using the signal molecules for accelerating repair of thedisintegrated aerobic granular sludge, by adding the exogenous AHLs temporarily, an excellent repairing effect on the disintegrated aerobic granular sludge is achieved, the repaired granular sludge is intact in structure and good in settling performance, moreover, operation is simple, and practical application is easy.

An organic light emitting device, and a method of fabricating the same, has a cathode electrode that can prevent oxygen or moisture from infiltrating. The organic light emitting device of the present invention has a lower electrode, an organic thin film layer and an upper electrode successively formed on the substrate. The upper electrode has at least two-layered thin films having different grain density and grain size. A lower film of the at least two-layered thin films of the upper electrode has a first Al thin film having a lower grain density and larger grain size than an upper of the at least two-layered thin films. The upper film has a second Al thin film having relatively higher grain density and smaller grain size than the first Al thin film.

The invention relates to nickel-tungsten-silicon carbide-aluminum oxide composite electroplate liquid as well as a preparation method and application thereof, and belongs to the technical field of material surface treatment. Each liter of the composite electroplate liquid comprises the following raw materials: 10-30 g of sodium tungstate, 140-200 g of nickel sulfate, 10-40 g of silicon carbide, 5-20 g of aluminum oxide, 60-100 g of a complexing agent, 1-2 mL of a surfactant and the balance of de-ionized water. According to the composite electroplate liquid provided by the invention, the raw materials are easily available, the environmental harm is little, and the composite electroplate liquid can be stored for a long term after being prepared; the preparation method provided by the invention is simple, feasible and favorable for industrialization; the invention further provides a method for electroplating petroleum machinery by the composite electroplate liquid, an obtained composite coating is uniform in particle distribution, does not have microcracks on the surface and is remarkably improved in both corrosion resistance and wear resistance.

The particles of the present invention are high density particles which enable a preferential binding of a target substance thereto and inhibit a binding of “substances other than the target substance” thereto. The particles of the present invention are characterized in that a substance or functional group capable of binding to a target substance is immobilized on the surface of a particle body; the particles have a density of 3.5 g/cm³ to 9.0 g/cm³ and the particle body has no through-pore. The particles of the present invention are also characterized by a specific surface area of 0.0005 m²/g to 1.0 m²/g.

A method of forming an abradable coating on a gas turbine engine component comprising, in sequence: placing dry lubricant particles and trapping particles in a channel having a spraying end and containing a gas; causing at least one shockwave in the gas to travel in the channel toward the spraying end, the at least one shockwave causing the dry lubricant particles and the trapping particles to travel in the channel with it, the at least one shockwave reducing interparticle spacing and increasing particles density; directing a resulting flow of the dry lubricant particles and the trapping particles from the spraying end at a supersonic velocity to impact the component; and then plastically deforming the trapping particles upon impacting the component with the resulting flow thereby trapping the dry lubricant particles with the deformed trapping particles onto the component to provide the abradable coating.

The invention discloses a process for pelleting urea formaldehyde controlled-release compound fertilizer in a high tower, comprising the following processing steps: A, fusing urea; B, mixing with potassium; C, mixing with phosphorus; D, mixing with formaldehyde: mixing the formaldehyde with caustic soda at normal temperature to obtain formaldehyde mixed liquor, enabling the formaldehyde mixed liquor and mixed fusing slurry to flow into a material receiving container, and mixing at the temperature of 80-110 DEG C to form formaldehyde-urea mixed liquor; and E, pelleting in the high tower. The invention has the following beneficial effects: 1, the compound fertilizer provided by the process of the invention contains urea formaldehyde, becomes silk-screen pasty after being dissolved in water,can be absorbed into soil, is difficult to volatilize or run away, can improve the fertilizer utilization ratio by 5-20%, completely accord with the characteristics of urea formaldehyde controlled-release fertilizer and play a role in retaining nitrogen; 2, the compound fertilizer provided by the process of the invention has high grain density, has small possibility of agglomeration, can reduce adhesion and scabbing of equipment, and has high molding ratio and less returned materials; 3, production is not influenced by high-temperature and high-humidity climate and can be carried out in all-weather conditions; and 4, the compound fertilizer is uniformly pelleted and has beautiful appearance.

An objective is to provide a radiation image conversion panel exhibiting excellent graininess and reduced x-ray damage (luminance degradation). A radiation image conversion panel comprising a support and provided thereon, a stimulable phosphor layer containing a stimulable phosphor in a polymer resin, wherein a luminescence intensity ratio of (A) stimulable phosphor particles comprising a smallest average particle diameter to (B) stimulable phosphor particles comprising a largest average particle diameter is 0.8-1.2, provided that a total average particle diameter of all the stimulable phosphor particles is 3.0-10.0 μm, an average particle diameter of (A) is 2.0-6.0 μm, an average particle diameter of (B) is 6-15 μm, and a content of (A) or (B) is within the range of at least 10% by weight and at most 90% by weight, based on the total stimulable phosphor content.

The invention provides a solid dispersion method of celecoxib and a preparation method of celecoxib capsules, and the solid dispersion method comprises the following steps: mixing the celecoxib with pharmaceutical adjuvants to obtain raw and auxiliary material mixed powder, and carrying out ultramicro jet milling and/or mechanical milling on the raw and auxiliary material mixed powder, wherein thepharmaceutical adjuvants at least comprise lactose monohydrate and lauryl sodium sulfate. The solid dispersion method disclosed by the invention not only overcomes the characteristic of poor preparation of a celecoxib preparation, but also solves the problem of slow dissolution of the celecoxib, and the preparation is good in stability, so that the preparation is consistent with an original developed preparation (Celebrex) in prescription and dissolution, and the quality consistency and bioequivalence of the celecoxib preparation and the original developed preparation (Celebrex) are ensured.

The invention relates to a device and a method for microwave discharge plasma catalytic reforming of greenhouse gas. The device comprises a carbon dioxide bottle and a methane bottle, the carbon dioxide bottle and the methane bottle are respectively communicated with a first cavity through gas tubes, and every gas tube is provided with a flow meter; and the first cavity is communicated with a microwave resonant cavity, the microwave resonant cavity is communicated with a catalytic reforming reactor, the catalytic reforming reactor is a double-layered cylindrical structure, one end of the innerlayer of the catalytic reforming reactor is communicated with the microwave cavity, the outer layer is provided with a water channel, and the water channel and a water tube form a circulation loop. The conversion rate of the plasma catalytic reforming reaction can be calculated according to the gas concentration detected by a sensor, and the reaction temperature in the catalytic reforming reactorcan be changed by using the temperature control in order to realize the adjustment of the conversion rate.