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299results about How to "Uniform nature" patented technology

NAND flash depletion cell structure

NAND architecture Flash memory strings, memory arrays, and memory devices are described that utilize depletion mode floating gate memory cells. Depletion mode floating gate memory cells allow for increased cell current through lower channel rdS resistance and decreased “narrow width” effect, allowing for increased scaling of NAND memory cell strings. In addition, the required voltages for reading and programming operations are reduced, allowing the use of more efficient, lower voltage charge pumps and a reduction circuit element feature sizes and layouts. Cell inhibit of unselected cells is also increased, reducing the likelihood of cell disturb in the memory array. Operation speed is improved by increasing read current of the selected NAND string and by increasing the ability to overcome the RC time constants of circuit lines and capacitances through lowered voltage swings and increased current supplies.
Owner:MICRON TECH INC

Boosted substrate/tub programming for flash memories

A boosted substrate tub / substrate floating gate memory cell programming process is described that applies a voltage to the substrate or substrate “tub” of a NAND Flash memory array to precharge a channel of carriers within the floating gate memory cells prior to applying a high gate programming voltage to the gate of the selected floating gate memory cells and coupling a program or program-inhibit voltage to program the selected floating gate memory cell(s) as desired. The use of a boosted tub programming approach avoids the requirement that the bitline and / or source line circuit design of the NAND Flash array be able to withstand or carry high voltages during programming of a floating gate memory cells and allows reuse of the block erase high voltage circuits connected to the substrate tub. This allows the NAND Flash memory array to be designed with smaller circuit designs and / or smaller circuit feature elements.
Owner:MICRON TECH INC

Multi-layered sports playing field with a water draining, padding layer

A multi-layered sports playing field including a top layer made of substantially artificial material simulating a natural playing surface such as grass and a padding layer positioned between the top layer and the base or dirt layer. The padding layer is made of a plurality of discrete beads of substantially elastic, resilient material (e.g., foam) with portions of adjacent beads abutting one another and other portions being spaced from each other. Substantially all of the adjacent beads are preferably integrally joined (e.g., glued, fused) together at their abutting portions. The padding layer is very porous and breathable and preferably includes feet members supporting the main body of the padding layer above the base or dirt layer to create a water channel of interconnected portions to enhance water drainage to the sides of the field.
Owner:BROCK USA

High silicon Y-type zeolite containing rare-earth and its preparing method

ActiveCN1281493CThe initial unit cell constant is smallThe equilibrium cell constant is largeFaujasite aluminosilicate zeoliteGasolineRare earth
A rare-earth-containing high-silicon Y-type zeolite, the zeolite contains rare earths, is characterized in that the silicon-aluminum ratio of the zeolite is 5-30, the initial unit cell constant is 2.430-2.465 nanometers, and the balance unit cell constant and the initial unit cell constant The ratio is at least 0.985. The zeolite has the characteristics of small initial unit cell constant and large equilibrium unit cell constant. It has high structural stability and hydrothermal stability. The cracking catalyst containing this zeolite is not easy to deactivate. The choice of gasoline, diesel oil, dry gas and coke Good sex.
Owner:CHINA PETROLEUM & CHEM CORP +1

Boosted substrate/tub programming for flash memories

ActiveUS20050111260A1Uniform natureBoosted tub” programmingRead-only memoriesDigital storageBit lineHemt circuits
A boosted substrate tub / substrate floating gate memory cell programming process is described that applies a voltage to the substrate or substrate “tub” of a NAND Flash memory array to precharge a channel of carriers within the floating gate memory cells prior to applying a high gate programming voltage to the gate of the selected floating gate memory cells and coupling a program or program-inhibit voltage to program the selected floating gate memory cell(s) as desired. The use of a boosted tub programming approach avoids the requirement that the bitline and / or source line circuit design of the NAND Flash array be able to withstand or carry high voltages during programming of a floating gate memory cells and allows reuse of the block erase high voltage circuits connected to the substrate tub. This allows the NAND Flash memory array to be designed with smaller circuit designs and / or smaller circuit feature elements.
Owner:MICRON TECH INC

Multi-layered sports playing field with a water draining, padding layer

A multi-layered sports playing field including a top layer made of substantially artificial material simulating a natural playing surface such as grass and a padding layer positioned between the top layer and the base or dirt layer. The padding layer is made of a plurality of discrete beads of substantially elastic, resilient material (e.g., foam) with portions of adjacent beads abutting one another and other portions being spaced from each other. Substantially all of the adjacent beads are preferably integrally joined (e.g., glued, fused) together at their abutting portions. The padding layer is very porous and breathable and preferably includes feet members supporting the main body of the padding layer above the base or dirt layer to create a water channel of interconnected portions to enhance water drainage to the sides of the field.
Owner:BROCK USA

Method for preparing food hygiene-level active carbon by use of bagasse

The invention relates to an active carbon material, and particularly relates to a method for preparing food hygiene-level active carbon by use of biological waste resource bagasse. The method comprises the steps of collecting and cleaning the residual bagasse after sugar production; sufficiently fermenting at 10-50 DEG C, drying, grinding and sieving; then performing the operation treatment such as soaking in an active agent solution, charring, activation and the like on the pretreated bagasse; washing, drying and grinding to obtain a high-performance active carbon product which can be applied to decoloration, refining and impurity removal of the sugar industry and the fields of foods and medicines such as medicinal crude drugs and the like. According to the method provided by the invention, by adopting the waste bagasse as a raw material, the comprehensive utilization of resources and environmental protection are facilitated; moreover, the price is low, the product quality is high, and the economic and social benefits are good.
Owner:JIANGSU ZHUHAI ACTIVATED CARBON CO LTD

Method for preparing graphene oxide-chitosan composite material

The invention discloses a method for preparing a graphene oxide-chitosan composite material. The method includes the steps that a chitosan solution is prepared; secondly, a graphene oxide solution is prepared, a 1-ethyl-(3-dimethylaminopropyl)carbodiimide (EDC) solution is added into the graphene oxide solution during stirring, stirring reaction is conducted after dropwise addition, then an N-hydroxyl succinimide (NHS) solution is dropwise added into the graphene oxide solution, stirring reaction is conducted, and an activated hydroxyl graphene oxide solution is obtained; thirdly, the activated hydroxyl graphene oxide solution is dropwise added into the chitosan solution and stirred, the mixture is poured into a mould after being cooled to room temperature, and the cross-linked graphene oxide-chitosan composite material is obtained after freezing drying. The novel graphene oxide-chitosan composite material having an interface bonding function is provided, compared with non-cross-linked composite materials, mechanical properties of the composite material are greatly improved, and use of the composite material in the aspect of the bone induction technology is achieved.
Owner:SOUTHWEAT UNIV OF SCI & TECH

Method for oxidizing asphaltum

A process for oxidizing asphalt includes such steps as dispersing air in the microbubbles mode in asphalt, loading in asphalt oxidizing tower, and oxidizing. Its advantages are high utilization rate of air, high speed, and simple structure of said oxidizing tower.
Owner:CHINA PETROLEUM & CHEM CORP +1

A reactor and a method of preparing pseudoboehmite by the reactor

A reactor and a method of preparing pseudoboehmite by the reactor are disclosed. The reactor comprises a reactor cylinder. A separating plate is disposed in the reactor cylinder to divide the inner cavity of the reactor into two zones along the axial direction. At least two material circulating pipelines are disposed outside the reactor cylinder. A circulated material outlet and a circulated material inlet in each material circulating pipeline are disposed in different zones. The circulated material outlets are at the upper part of the reactor cylinder and the circulated material inlets are at the bottom of the reactor cylinder. In each of the zones, the corresponding lower part of the reactor cylinder is provided with a material feeding port, and the corresponding upper part of the reactor cylinder is provided with an overflow port higher than the corresponding circulated material outlet. Continuous gel forming can be achieved by the reactor. Pseudoboehmite particles prepared by adopting the reactor are uniform in particle size, so that prepared aluminum oxide is large in pore volume, large in pore diameter and centralized in pore distribution, and the prepared aluminum oxide is uniform and constant in properties, and is not influenced by batch production scales.
Owner:CHINA PETROLEUM & CHEM CORP +1

Soil consolidation detector of using weight and air pressure combined loading and detection method

The invention provides a soil consolidation detector of using weight and air pressure combined loading and a detection method. The soil consolidation detector is suitable for the technical field of property detection of soil and especially suitable for remolded soil consolidation process testing and consolidation process testing of natural soil with relatively high moisture content. The soil consolidation detector comprises a reaction frame, a weight loading device, a weight and air pressure loading conversion device, a sensing measurement device, a consolidation container and an air source pressure controller; after weight loading and forming of a certain settlement amount, upper counter-force is formed through an adjusting nut and a conversion accessory; an air pressure loading device is started to push the consolidation container to ascend to gradually replace a weight load; air pressure is applied to pre-determined consolidation pressure; and the deformations of soil samples in the weight loading process and the air pressure loading process are automatically switched and observed and the soil consolidation quality is recorded and controlled through two groups of sensors on the sensing measurement device. The soil consolidation detector is relatively high in accuracy and convenient to operate; and soil which is uniform in property and high in strength and has different soil consolidation degrees can consolidated under a high load condition.
Owner:CHINA UNIV OF MINING & TECH

Solvent oil hydrogenation and quality change method

The invention relates to a method of hydrogenation to improve quality of solvent oil. The invention takes one or more petroleum fractions from petrol, coal oil, diesel oil as raw materials, contactly reacting with hydrogenation catalysis containing ª
Owner:CHINA PETROLEUM & CHEM CORP +1

Process method and process system for preparing solid fuel through biomass and sludge

The invention discloses a process method and a process system for preparing solid fuel through biomass and sludge. The method comprises the step of mixing biomass dried raw materials with sludge dried raw materials which are aired, ground and dried to obtain the solid fuel, wherein sludge airing energy is one or the combination of any two or three of solar energy, waste gas generated by drying sludge raw materials and high-temperature fume generated by combusting the solid fuel, and sludge raw material drying energy is high-temperature and high-pressure steam generated by combusting the solid fuel. The system comprises a raw material treatment system, a molding system and a boiler system, wherein the raw material treatment system and the boiler system transfer heat energy to each other through first, second and third gas delivery pipelines. According to the method, the cost is low, the effect is good, environmental protection is realized and the solid fuel is suitable for large-scale production. The system is resource-saving and stable to operate.
Owner:东莞市图美环保科技有限公司

Method for preparing lithium ion battery employing organic-inorganic composite gel polymer electrolyte

The invention discloses a method for preparing a lithium ion battery employing an organic-inorganic composite gel polymer electrolyte. The preparation method comprises the steps: uniformly fixing thesurface-functionalized inorganic oxide nanoparticles to the surface of a membrane and in the internal pores by chemical bonds, sandwiching the modified membrane between the positive and negative materials, injecting an electrolyte mixed with a functionalized low polymer and an initiator, and initiating the in-situ polymerization crosslinking of the oligomer by heating to gel the liquid substancesinside the battery to obtain a lithium ion battery based on the organic-inorganic composite gel polymer electrolyte. The gel forming electrolyte of the invention not only prevents the risk of electrolyte leakage, but also reduces the reactivity of solvent molecules on the electrode surface. A liquid state electrolyte system before polymerization can fully wet the electrode material and reduce theelectrode / electrolyte interface resistance. The inorganic / polymer compatibility is enhanced by the double-bond copolymerization of a double-bond functional group on the inorganic nanoparticle surfaceand an oligomer chain end. The obtained components are uniform after polymerization.
Owner:SHANGHAI UNIV

Catalyst for preparing aromatic hydrocarbons through directed conversion of CO2 and preparation method of catalyst

The invention discloses a catalyst for preparing aromatic hydrocarbons through directed conversion of CO2, and relates to the technical field of catalytic hydrogenation. Metal oxide is adopted as a core, and a a molecular sieve is adopted as a shell so as to obtain the core-shell structure catalyst, wherein the metal ion center of the metal organic compound is one or more of Zn<2+>, Zr<2+>, Fe<3+>, Co<2+>, Ni<2+>, Cu<2+>, Cr<3+> and Mn<2+>, and the molecular sieve is one or more of ZSM-5, MCM-41, SAPO, MCM-22, USY and SBA-15. The catalyst for preparing aromatic hydrocarbons through directed conversion of CO2 has the characteristics of a uniform structure, uniform properties and precise regulation, the preparation process has simple procedures and high repeatability, and the prepared catalyst has the advantages of high conversion rate of CO2, high selectivity to aromatic hydrocarbons, a long service life, a wide application range and the like; and the prepared catalyst can be directly applied to preparation of aromatic hydrocarbons through directed conversion of CO2, and has an industrial value.
Owner:NANJING INST OF TECH

Suspension roasting manganese and iron treatment method of iron-contained manganese ore

The invention relates to a suspension roasting manganese and iron treatment method of iron-contained manganese ore, and belongs to the technical field of mineral processing. The method includes the following steps that (1) the iron-contained manganese ore is crushed to be subject to ore grinding; (2) first-section low-intensity magnetic separation is carried out; (3) first-section low-intensity magnetic separation gangue is placed into a roasting furnace, gas and air are led in, and the first-section low-intensity magnetic separation gangue is subject to oxidizing roasting; (4) a reduction roasting furnace is adopted, and oxidization powder ore is placed into the reduction roasting furnace to be subject to reduction roasting; (5) roasted ore is subject to second-section low-intensity magnetic separation; and (6) first-section low-intensity magnetic concentrate and second-section low-intensity magnetic concentrate are merged to serve as an iron ore concentrate finished product. The suspension roasting manganese and iron treatment method is simple in technological process, large in equipment treatment amount, easy in product character control, capable of achieving industrialized application, capable of achieving energy conservation and environmental protection and capable of easily achieving large scale.
Owner:NORTHEASTERN UNIV

Curing method for fast forming crust layer on yard surface

The invention relates to a solidification method for forming hard shell layer rapidly on storage yard, used in the rapid foundation treatment to the large amount of dredged mud storage yard generated in hydraulic and water environment treatment, and harbor and navigation channel construction. The invention comprises the following steps: a) mixing the mud and solidification material and stirring, and laying the mixture on the surface of the storage yard; b) after the solidified mud is hardened, the constructor walks onto the hard shell layer carrying machines to lay the mixture forwards on until the whole storage yard is completed. Aiming to the problems that: the hydraulic filled mud with high water content has a low strength, the constructors and machines can not enter, and the foundation reinforcing treatment has to be postponed for a long time, the invention provides the method capable of forming an artificial hard shell layer on the surface of hydraulic filled mud in a short time after hydraulic filling; provides a manmade construction platform for constructors and machines, thereby shortens the total storage yard foundation treatment time.
Owner:HOHAI UNIV

Method for preparing solid forming fuel with pig manure as raw material

The invention discloses a method for preparing solid forming fuel with pig manure as raw material. The method comprises the steps as follows: firstly, drying the pig manure to enable the moisture content of the pig manure to be reduced to 10%-25%, then crushing the pig manure and adding the additive capable of desulfuration, deodorization and mold prevention via 2%-5% dry basis quality of the pig manure so as to form the dried pig manure raw material; uniformly mixing and stirring 20%-100% of the dried pig manure raw material, 0%-80% of biomass and 0%-20% of coal by dry weight to obtain the raw material mixture, and then utilizing forming machine to perform hot-pressing formation, so as to obtain the solid forming fuel. The method has the characteristics of simplicity, convenience, feasibility, energy conservation and environmental protection, high treatment efficiency, low production cost, and high convenience for large-scale industrialized production, and the solid forming fuel has no odor, is not easy to mildew, is convenient in transportation and storage and high in combustion efficiency and has fewer secondary pollutant emissions. Therefore, harmless treatment and resource utilization of the pig manure are realized, and the problem about treatment and disposal of the excessive pig manure can be effectively solved.
Owner:HUNAN UNIV

Luminous rare earth metal complexes and adjustable luminous nano film prepared by the same

InactiveCN101260295AStable structureExcellent coordination field luminescence environmentLuminescent compositionsRare earthThermal stability
The invention provides a luminescent rare-earth metal complex, and a preparation method and application thereof. The luminescent rare-earth metal complex is a supramolecular complex which irradiates bright red, green, or blue light and is formed through complexation of rare earth metal ions Eu<3+>, Tb<3+>, Ce<3+> with tripodal ligand respectively. The invention also discloses the preparation method for the rare-earth metal complex, wherein an NTB ligand is dissolved in ethanol, ethanol solution of the rare earth salt is slowly added, and the mixture is put still, filtered, rinsed, and dried to obtain the luminescent rare-earth metal complex. The invention also discloses the application of the rare-earth metal complex to the preparation method of adjustable luminescent nanometer film on the basis of red, green, and blue rare-earth metal complexes. The nanometer film produced with the method is characterized in high adjustability of luminescence, high brightness, high thermal stability and so on, and has wide application prospect.
Owner:SUN YAT SEN UNIV

Combined sludge deep dehydration system and deep dehydration technique

The invention provides a combined sludge deep dehydration system and deep dehydration technique. The dehydration system comprises a sludge feed unit, a sludge conditioning modification unit and a pressure filtration dehydration unit, wherein the sludge feed unit comprises a sludge dilution homogenization tank and a sludge mixing delivery assembly; the sludge dilution homogenization tank is connected with the sludge conditioning modification unit through the sludge mixing delivery assembly; and the sludge conditioning modification unit is connected with the pressure filtration dehydration unit. The deep dehydration technique comprises the following steps: (1) treating sludge by the sludge feed unit to obtain the sludge of which the water content is within a certain range; (2) sending the sludge obtained in the step (1) to the sludge conditioning modification unit, and adding a conditioner to perform conditioning; and (3) sending the sludge obtained in the step (2) to the pressure filtration dehydration unit to perform treatment. By optimizing the design, the whole technique has high adaptability, and can flexibly regulate the operation group number and time of the system according to the actual sludge feed quantity and water content condition, thereby ensuring the stable operation of the system.
Owner:SHANGHAI ATON ENVIRONMENTAL LIABILITY

Graphene oxide nano inorganic phase-change material and preparation method thereof

The invention provides a preparation method of a graphene oxide nano inorganic phase-change material. The specific surface area of graphene oxide is utilized to promote crystal nucleation and lower the supercooling degree of an inorganic phase-change material, at the same time, graphene oxide contains a lot of hydroxy, which can bond with inorganic salt crystal water to produce a hydrogen bond, thus effectively avoiding or delaying agglomeration, and improving the system stability. The supercooling degree of an inorganic phase-change material is effectively lowered, and the supercooling degree of the phase-change material can be lowered to 1-3DEG C. According to the invention, the process is simple and easy for operation, the product has homogeneous and stable properties, and small toxic and side effects, etc., and belong to green and environment-friendly products.
Owner:JILIN JIANZHU UNIVERSITY

Wear-resistant high-temperature resistant coating having high adhesive force

The invention belongs to the technical field of equipment coating, and particularly relates to wear-resistant high-temperature resistant coating having high adhesive force. The coating includes silicone resin, a high-temperature resistant filler, aluminum paste, inorganic pigment, a film forming agent, nanometer zirconia ceramic micropowder, a curing agent and a solvent. The high-temperature resistant filler of the coating is quartz powder, mica powder or talcum powder, and the fineness of the filler is 700-800 meshes. The solvent is one of butyl acetate, xylene and n-butanol. The coating has uniform properties. An obtained coating layer of the coating is smooth, fine and good in adhesive force. The coating has excellent high-temperature resistance, good impact resistance, god wear resistance and good corrosion resistance. The coating is particularly suitable for surface protection of high-temperature motors, high-temperature electric resistance furnaces, and other devices.
Owner:HEFEI MINGYOU HIGH TEMPERATURE TECH CO LTD

Modified biological asphalt material, preparation method thereof and application of material

The invention belongs to the technical field of asphalt, and discloses a modified biological asphalt material, a preparation method thereof and an application of the material. The modified biologicalasphalt material comprises, by weight, 30-78 parts of biological asphalt, 10-15 parts of modified agents, 0.2-0.6 part of mineral fibers, 1-3 parts of stabilizing agents and 10-25 parts of solvents. According to the modified biological asphalt material, special modified agents are selected, softening points and viscosity of the biological asphalt are improved, high-temperature stability of the biological asphalt is improved, mineral fibers have excellent performances of high strength, corrosion resistance and high-temperature resistance and the like, and deformation resistance of the biological asphalt is improved by the mineral fibers. According to the modified biological asphalt material, the biological asphalt is modified by adding the modified agents, the mineral fibers and the stabilizing agents, and high-temperature stability, low-temperature stability and deformation resistance of the biological asphalt are improved, so that the prepared modified biological asphalt material hasgood bearing capacity, deformation recovery capacity and high-temperature rut resistance.
Owner:NANJING COMM INST OF TECH

Process for the preparation of antimicrobial mould inhibitor

The invention relates to a preparation method of an antisepsis and antimildew agent. The preparation method is that: polysaccharid water solubility adhesive agent is dissolved in an acid solution and then nanometer titanium dioxide is added into the acid solution, each one gram of the adhesive agent is added with 0.01 to 10 grams of the nanometer titanium dioxide, at last the mixed agent is added with an organic cross-linking agent to make the antisepsis anti mildew agent, each one gram of the adhesive agent is added with 0.1 to 100 ml of the organic cross-linking agent, during the preparing process of the invention, the antisepsis and antimildew agent can be added with cellulosic latex, metallic ions and high molecule sterilization auxiliary agent etc., which results in synergistic effects of a plurality of bactericidal agents, in addition, dried and formed into film, the invention which is coated on the surfaces of articles has antisepsis and mildew proof effects. Within two hours after using the invention, the sterilizing rate is more than 90 percent, the sterilizing rate is nearly 100 percent within four hours, and the sterilizing rate can be maintained more than 90 percent within twenty-four hours, resulting from time efficiency of the invention.
Owner:BEIJING UNIV OF CHEM TECH

Alumina carrier and its preparation method

The invention discloses an alumina carrier and its preparation method. The alumina carrier is prepared in a loop reactor by a carbonization method. The preparation method comprises: placing a reaction material in the loop reactor, then jetting a mixed gas of air and / or an inert gas and CO2 into the reactor, and making use of the directional and regular circular flow of the fluid inside the loop reactor to make the fluid fully mixed, thus achieving gelatinizing at one time. The obtained alumina carrier has the characteristics of large pore volume, large pore diameter, and concentrated pore size distribution, thus being especially suitable to serving as a heavy oil or residual oil hydrodemetallization catalyst carrier.
Owner:CHINA PETROLEUM & CHEM CORP +1

Preparation method of lithium titanium phosphate anode material

The invention belongs to the technical field of green energy source material, and more specifically relates to a preparation method of a lithium titanium phosphate anode material of lithium ion batteries taking an aqueous solution as the electrolyte. According to the preparation method, a primary carbon source with a relatively high glass transition temperature is added into a slurry so as to avoid adhering on the wall in spray drying process caused by adding of an organic carbon source completely; carbon sources are added in two times, a secondary carbon source is added in a second time after an initial precursor is formed, and the secondary carbon source is mixed with the initial precursor at a high speed, adoption of composite carbon sources is capable of achieving excellent carbon coating effect on the surface of lithium titanium phosphate; electrical conductivity among the LiTi2(PO4)3 particles is increased via coating by the secondary carbon source, the electrical conductivity of LiTi2(PO4)3 is increased obviously, and carbon coated LiTi2(PO4)3 possesses excellent cycling stability in aqueous electrolyte. The production process is continuous; product characteristics are uniform; quality is stable; the preparation method is simple and convenient, and is suitable for industrialized production.
Owner:江西省金锂科技股份有限公司

Fluorescent material coating method and substrate prepared by same

The invention relates to a fluorescent material coating method and a substrate prepared by the same. The fluorescent material coating method comprises the following steps of: (A) dispersing a fluorescent material in a first solvent to form fluorescent material solution; (B) filling the substrate in a container, injecting a second solvent in the container and covering the surface of the substrate by using the second solvent; (C) adding the fluorescent material solution into the second solvent to form a fluorescent material thin film on the surface of the second solvent; and (D) removing the second solvent from the container to form the fluorescent material thin film on the surface of the substrate.
Owner:苏州铎力斯科技有限公司

Skincare base, preparation method and application thereof, cosmetic and preparation method of cosmetic

The invention discloses a skincare base, a preparation method and an application thereof, a cosmetic and a preparation method of the cosmetic, relates to the technical field of cosmetics and aims to solve the technical problem that the conventional products cannot have blue-ray resistance and an anti-aging effect simultaneously. The skincare base is mainly prepared from ingredients in percentage by mass as follows: 3%-5% of 1,2-pentanediol, 10%-15% of butanediol, 1%-5% of tripeptide-3, 0.01%-1% of carnosine, 1%-10% of scutellaria root extract, 1%-10% of alga extract* and the balance of water. The base can effectively reduce wrinkle generation and skin elasticity loss, improve fine lines of the skin, resist oxidation and blue rays, inhibit melanin generation, prevent photo-aging and injury of skin, enhance the barrier action of the skin and be effectively absorbed by the skin, provides nutrition for the skin and has resistance to the blue rays and aging. After long-term use of the cosmetic containing the skincare base, skin injury by the blue rays can be avoided, and aging can be delayed.
Owner:广州丸美生物科技有限公司

Method for preparing iron powder through red mud suspension roasting

The invention discloses a method for preparing iron powder through red mud suspension roasting, and belongs to the technical field of mineral processing. The method comprises following steps: firstly,red mud is subject to fine grinding and then subject to one-segment weak magnetic separation; secondly, one-segment weak magnetic separation tailings is subject to strong magnetic separation, and one-segment weak magnetic concentrate and strong magnetic concentrate are mixed to serve as preconcentration concentrate; thirdly, the preconcentration concentrate is placed in an oxidizing roaster, gasand air are led, and the preconcentration concentrate is subject to oxide roasting to obtain oxide powder ore; fourthly, the oxide powder ore is placed in a reduction roaster, nitrogen and reduction gas are led, and reduction roasting is carried out; fifthly, the roasted ore is subject to fine grinding, and then, second-segment weak magnetic separation is carried out. The method is simple in process flow, the equipment treatment amount is large, the product character is easily controlled, industrial application is achieved, the method is energy-saving and environment-friendly, and enlargementis easily achieved.
Owner:NORTHEASTERN UNIV LIAONING

Nano nickel-based methanation catalyst as well as preparation method and applications thereof

The invention discloses a nano nickel-based methanation catalyst which comprises the following components in percentage by weight: 20-35 % of NiO, 55-79 % of a carrier, and 0.1-10 % of a structure additive. The nano nickel-based methanation catalyst disclosed by the invention has the advantages that the catalyst is applicable to a slurry bed methanation process, high in catalytic activity, and good in stability.
Owner:TAIYUAN UNIV OF TECH
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