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577 results about "Metalloorganic Compounds" patented technology

The most thoroughly studied metallo-organic compounds of the first group include the derivatives of lithium, sodium, potassium, beryllium, magnesium, zinc, cadmium, mercury, boron, aluminum, tellurium, germanium, tin, lead, arsenic, and antimony.

Processing gas supply mechanism, film forming apparatus and method, and computer storage medium storing program for controlling same

InactiveUS20060086319A1Reduce total pressure lossPressure increase within the supply path of the processing gas can be suppressedSemiconductor/solid-state device manufacturingChemical vapor deposition coatingSimple Organic CompoundsProcess engineering
A processing gas supply mechanism installed on a processing chamber of a film forming apparatus for supplying a processing gas containing a metal organic compound onto a substrate to be processed includes a processing gas inlet opening for introducing the processing gas, a diffusion space for diffusing the processing gas introduced from the processing gas inlet opening, a processing gas supply mechanism main body for forming the processing gas diffusion space, and one or more processing gas supply holes for supplying the processing gas from the diffusion space to a processing space on the substrate in the processing chamber. Further, the processing gas supply holes are shaped to have a Peclet number of 0.5 to 2.5 when the processing gas passes therethrough.
Owner:TOKYO ELECTRON LTD

Method and apparatus for forming thin film of metal

The present invention relates to a method of and an apparatus for forming a thin metal film of copper, silver, or the like on a surface of a semiconductor or another substrate. A method of forming a thin metal film, comprises preparing a dispersed liquid having a metal-containing organic compound dispersed in a predetermined solvent, coating the dispersed liquid on a surface of a substrate and evaporating the solvent to form a coating layer, and applying an energy beam to the coating layer to decompose away an organic substance contained in the coating layer in an area irradiated with the energy beam and bond metal contained in the coating layer. According to the present invention, it is possible to form a thin metal film of good quality efficiently and stably. The thin metal film used as metal interconnects in highly integrated semiconductor circuits contributes to the progress of a process of fabricating semiconductor devices.
Owner:EBARA CORP

Heavy oil and biomass hydrogenation coliquefaction treatment process

The invention relates to a heavy oil and biomass hydrogenation coliquefaction treatment process in which one or two of heavy oil and biomasses are used as raw materials in vacuum gas oil with the distillation range of 360-540 DEG C and FCC (Fluid Catalytic Cracking) oil slurry. In the process, an oil-soluble transition metal organic compound with hydrogenation activity is used as a catalyst, dimethyl sulfide is used as a vulcanizing agent, a full-back-mixing type empty barrel reactor is used as a slurry column hydrogenation reactor, the reaction temperature is uniform, and the structure is simple. By using the process, the conversion rate of the biomasses can be up to over 90wt% at lower hydrogen pressure of 4-8MPa and the temperature of 370-430 DEGC, and the yield of oil phases is up to over 70wt%. A dispersive hydrogenation catalyst adopted in the process can be used for greatly reducing the quantity of green cokes and taking a better deoxidization effect on the biomasses.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Method for manufacturing carbon fibers and electron emitting device using the same

ActiveUS7074380B2Stable formationSatisfactory electron emitting characteristicPigmenting treatmentMaterial nanotechnologyFiberCarbon fibers
To provide an ink for producing a catalyst capable of stably forming metal particles which act as catalysts suitable for growth of carbon fibers by applying them onto a substrate.A solution containing a metal organic compound containing any one metal of Pd, Fe, Co and Ni and a water-soluble polymer compound is formed by using water or an organic solvent as a main solvent.
Owner:CANON KK

Plastic degrading composition, use of same and plastic and product containing same

The invention provides a composition for use in degradable plastics, which comprises: 1) a visible light catalytic oxidation degradation and thermally catalytic oxidation degradation component which is metal organic compound of a transition metal and accounts for 1 to 10 percent of the total weight of the composition; 2) an ultraviolet light catalytic degradation component which is a nano transition metal compound which has a particle diameter of between 5 and 100 nanometers and an ultraviolet light catalytic degradation function and accounts for 0.1 to 10 percent of the total weight of the composition; 3) an assisted oxidation degradation component which accounts for 1 to 10 percent of the total weight of the composition; and 4) a plastic basic component which accounts for the balance ofthe total weight of the composition. The invention also relates to the use of the composition in the production of degradable plastic products and the various degradable packaging or dispensable plastics and plastic products produced by using the composition.
Owner:济南中科广源环保科技有限公司

Method for Production Thermoplastic Resin Composition Containing Ultrafine Particles

A method for producing a thermoplastic resin composition containing ultrafine particles on an industrial scale is provided. The method for producing the thermoplastic resin composition containing ultrafine particles includes mixing a metal-containing organic compound with a thermoplastic resin; and then heating the resulting mixture at a temperature of not lower than the decomposition starting temperature and lower than the complete decomposition temperature of the metal-containing organic compound to produce a composition containing ultrafine metal particles and / or ultrafine metal oxide particles having a number-average particle size of 0.1 to 80 nm dispersed in the thermoplastic resin.
Owner:KANEKA CORP

Method of engineering a property of an interface

A method of engineering a property of an interface using a gas cluster ion beam (GCIB) apparatus is disclosed. The method includes introducing a metal-organic compound with a carrier gas to form a metal-organic gas and mixing the metal-organic gas with a cluster gas used in the GCIB. The GCIB forms a plurality of gas cluster ions that include the metal-organic compound, focuses the gas cluster ions into a beam, and then accelerates the beam towards an interface surface of a target material where the gas cluster ions impact on the interface surface and at least a portion of the metal-organic compound remain in contact with the interface surface and modifies a property of the interface surface. The metal-organic gas can include a plurality of metal-organic compounds.
Owner:HEWLETT PACKARD DEV CO LP

Carbon-clad metal nano particle and its preparing method

The present invention relates to a metal nano-material coated with carbon and its preparation method. Said preparation method includes the following steps: mixing nano carbon tube and metal organic compound according to the mole ratio of 1-50:1, adding them into organic solvent, the mole ratio of organic solvent and organic metal compound is 0-30:1, stirring for 0.5-24 hr., placing them into high-pressure kettle, making supercritical heat decomposition reaction at 150-450 deg.C, making reaction for 1-6 hr., after the reaction is completed, water-cooling to room temperature, releasing medium gas so as to obtain catalyst of nano carbon tube / metal oxide; then placing the catalyst into the furnace, introducing protective gas, heating according to the rate of 0.1-15 deg.C / min. to 650-1200 deg.C, retaining constant temperature, introducing mixed gas and retaining constant temperature for 1-180 min. so as to obtain the invented product.
Owner:WUHAN UNIV OF SCI & TECH

Metal-free vertically-aligned nitrogen-doped carbon nanotube catalyst for fuel cell cathodes

Metal-free fuel cell cathodes having a catalytic layer of vertically-aligned, nitrogen-doped carbon nanotubes (VA-NCNTs) are provided. The fuel cell cathodes comprise a cathode body, a binder layer attached to an outer surface of the cathode body, and the catalytic layer, which is supported by the binder layer. The binder layer may comprise a composite of a conductive polymer and doped or undoped nonaligned carbon nanotubes. In a method for forming the fuel cell cathodes, the VA-NCNTs may be formed by pyrolysis of a metalorganic compound and integration of the nanotubes with nitrogen. The binder layer is applied, and the resulting supported nanotube array may be attached to the cathode body. Fuel cells comprising the fuel cell cathodes are provided. The fuel cell cathodes comprising VA-NCNTs demonstrate superior oxygen-reduction reaction performance, including for electrocatalytic activity, operational stability, tolerance to crossover effects, and resistance to CO poisoning.
Owner:UNIV OF DAYTON

Polyether copolyamide pervaporation membrane as well as preparation method and application thereof

The invention relates to a polyether copolyamide pervaporation membrane as well as a preparation method and an application thereof, and belongs to the technical field of membrane separation. The preparation method comprises the following steps: mixing polyether copolyamide and a metal organic compound with a solvent at a certain temperature to obtain a membrane casting solution, coating a polyether sulfone composite membrane supported by nonwoven cloth with the membrane casting solution, standing for a period of time in air, and drying in a vacuum drying box for several hours to obtain the polyether copolyamide pervaporation membrane. The polyether copolyamide pervaporation membrane prepared by the method is large in permeation flux, good in separation effect, good in strength, stable in structure and suitable for removing volatile organic compounds, especially volatile ester compounds from water.
Owner:JIANGNAN UNIV

Preparation method for nanoscale transition metal nitride/carbon composite material

The invention relates to a preparation method for nanoscale transition metal nitride / carbon composite material, the chemical formula of nanoscale transition metal nitride / carbon composite material is MeN / C (Me is one or a mixture of more of organic compounds such as titanium, vanadium, chromium, nickel, manganese, molybdenum and the like; N and C are respectively nitrogen and carbon); the anoscale transition metal nitride / carbon composite material is obtained by the following methods: a tri-block copolymer P123 of PEO-PPO-PEO is taken as a template, the tri-block copolymer P123 and the urea resin, melamine resin or carbon nitride polymer are mixed and heated so as to obtain mesoporous carbon nitride, then the mesoporous carbon nitride is added into a metal organic compound or an ethanol solution of various mixtures of the metal organic compound, the removal of air in holes by decompression after ultrasonic vibration is carried out on the mixture, and finally the nanoscale transition metal nitride / carbon composite is obtained after the mixture undergoes ethanol pumping filtration, is scrubbed, dried and processed at high temperature under the protection of inert gas; and the product is uniform and is environmental friendly.
Owner:QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI

Chemical vapor deposition process of preparing Sic nanotube

The preparation process of SiC nanotube includes the following steps: 1. cleaning and drying graphite sheet as substrate; 2. soaking the substrate in catalyst solution including catalyst comprising organic compound of Fe, Co, Ni and other metals and co-catalyst comprising organic compound of S; 3. chemically vapor depositing gas source compound comprising organic compound capable of being gasified and containing Si-C bond in the carrier gas comprising N2, H2, NH3 or their mixture and with the molar ratio to the gas source compound of 4.5-7.0 at the temperature of 800-1100 deg.c for 0.8-1.5 hr; and 4. purifying treatment. The present invention has the advantages of: low preparation temperature, easily controlled reaction process, simple technological apparatus, low cost, high yield, high product purity, homogeneous product size distribution and easy use in large scale production.
Owner:NAT UNIV OF DEFENSE TECH

Solid basic catalyst, preparation method of solid basic catalyst and application of solid basic catalyst in ester exchange reaction

The invention discloses a solid basic catalyst, a preparation method of the solid basic catalyst and an application of the solid basic catalyst in ester exchange reaction. The solid basic catalyst catalyzes the ester exchange reaction by the reaction of metal organic compound and hydroxyl on a carrier under the moderate conditions to synthesize dimethyl carbonate. The solid basic catalyst provided by the invention consists of metal organic alkali and the carrier. The metal organic alkali is linked to the carrier in bond-forming manner; the metal organic alkali is one or more of lithium methoxide, lithium ethoxide, lithium isopropoxide, lithium n-butoxide, lithium tert-butoxide, sodium methoxide, sodium ethoxide, sodium isopropoxide, sodium n-butoxide, sodium tert-butoxide, potassium methoxide, potassium ethoxide, potassium isopropoxide, potassium n-butoxide and potassium tert-butoxide; the carrier is one or more of silicon oxide, aluminium oxide, titanium oxide, zirconia, mesoporous silicon oxide synthesized by the template method, mesoporous aluminium oxide synthesized by the template method, mesoporous titanium oxide synthesized by the template method, and mesoporous zirconia synthesized by the template method.
Owner:NANJING UNIV OF TECH

Plasma-enhanced pulsed deposition of metal carbide films

Methods of forming a metal carbide film are provided. In some embodiments, a substrate is exposed to alternating pulses of a transition metal species and plasma-excited argon. The transition metal species is reacted with a carbon species to deposit a metal carbide film. The substrate is exposed to the carbon species simultaneously with the transition metal species, or the substrate is exposed to the carbon species in pulses temporally separated from the pulses of the transition metal species. In some embodiments, the carbon species and the transition metal species form parts of the same precursor compound, e.g., a metal organic compound.
Owner:ASM IP HLDG BV

Preparation method of hot-melt polyurethane resin for bonding material

The invention discloses a preparation method of hot-melt polyurethane resin for a bonding material. The preparation method comprises the following steps of performing a dehydration treatment on polyester polyol, polyether polyol, natural oligomer polyol or a mixture of two or more of the polyols aforementioned in certain conditions; adding an amine catalyst or a metal organic compound catalyst, and uniformly stirring and mixing at a room temperature; then reacting the mixture obtained from the former step with polyisocyanate or diisocyanate at 50-70 DEG C; after reacting for a certain time, adding an appropriate amount of a chain extender in the system (an appropriate amount of a good solvent can be added as needed to adjust the viscosity); after the chain extension reaction is concluded, adding a certain amount of acrylate with hydroxyl and a certain amount of an antioxidant in the system; determining the content of NCO via a titration method, when the needed theoretical value is achieved, stopping the reaction, and discharging, thereby obtaining the needed hot-melt polyurethane resin for the bonding material. The hot-melt polyurethane resin for the bonding material is applied to the field of medicine and tobacco packaging as an adhesive, and has the greatest advantages of high bonding strength, low viscosity and low readily oxidizable substance content, and is beneficial to customer use and cost reduction.
Owner:XIAN GREAT SKY NEW MATERIAL

Method for manufacturing hafnium containing SiC ceramic precursor

InactiveCN101318821AWide variety of sourcesControllable and adjustable contentFiberHafnium
The invention provides a method for preparing a SiC ceramic precursor containing hafnium, comprising the following steps that: (1) a low molecular weight polymer containing silicon in the main chain is put inside a three-neck flask, and added with hafnium organic compound or chloride the mass of which is 0.5 to 20wt% of the low molecular weight polymer; (2) under the protection of Ar or N2 or the mixture of the two, the temperature of the three-neck flask is increased to between 350 and 500 DEG C according to the temperature increasing rate of 0.1 to 5 DEG C per minute, the temperature of a cracking post is controlled between 450 and 550 DEG C, the pyrolysis recomposition reaction is performed for 0.3 to 30 hours, the PHCS coarse product is produced after the cooling process; and (3) the coarse product is dissolved in the dimethylbenzene and is filtered, the filtrate is decompressed, distilled and cooled at a temperature of between 300 and 390 DEG C. The raw materials are widely available, the reaction process is easy to control, the device is simple, the product has high purity, the re-forming property is good, the super high temperature performance is good; the large-scale industrial production is easy to realize; and the ceramic fiber prepared has good anti-oxidation performance.
Owner:NAT UNIV OF DEFENSE TECH

Hydrocarbon conversion

A catalyst comprising at least one metal selected from the group consisting of Group 8 metals, Group 9 metals, Group 10 metals and combinations thereof, an organic compound, and a solid acid and a method of making said catalyst is disclosed. The catalyst can be used in a hydrocarbon conversion process.
Owner:PHILLIPS 66 CO

Meso-microporous metal-organic compound and preparation method thereof

The invention relates to a microporous and mesoporous organometallic compound as well as the preparation method thereof, and mainly provides an organometallic compound with multilevel pores, as well as the preparation method thereof. The preparation method comprises the following steps: metal inorganic salts and organic carboxylic acid coordination polymers are dissolved in water or an organic solvent; the mixed solution is crystallized for 10-100 hours under the condition that the temperature is 100-220 DEG C; after being naturally cooled down and taken out, the reaction product is taken out; the microporous and mesoporous organo-metallic compound is prepared through suction-filtering, washing, drying and baking. The preparation process of the invention is simple, the cost is low, and the microporous and mesoporous organo-metallic compound can be prepared under mild conditions. The prepared material with the multilevel pores has wide application prospect on aspects of adsorption, separation, catalysis, etc.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI

Group III nitride compound semiconductor device and method of producing the same

A first group III nitride compound layer, which is formed on a substrate by a method not using metal organic compounds as raw materials, is heated in an atmosphere of a mixture gas containing a hydrogen or nitrogen gas and an ammonia gas, so that the crystallinity of a second group III nitride compound semiconductor layer formed on the first group III nitride compound layer is improved. When the first group III nitride compound layer is formed on a substrate by a sputtering method, the thickness of the first group III nitride compound layer is set to be in a range of from 50 Å to 3000 Å.
Owner:TOYODA GOSEI CO LTD

Chargeable magnesium battery

InactiveCN1411083ACharge and discharge balanceLow priceFinal product manufactureCell electrodesBattery chargeAlloy
This invention relates to the manufacture of secondary batteries charged by Mg including electrode materials, electrolytic material and their preparation method in which the negative is made of Mg alloy with component of MgMxMy(o<x, y<0.5) alloy above binary (M is Ni, Cu, Ti, Co, Si, B etc.), the positive is made of nanometer degree M2Co2O4(O<z<2, O<t<3) or MoS2 and the liquid electrolyte is metal organic compound Mg(ZnBuCl2)2. The said battery system has balance of charge / discharge with open voltage of about 2.0 V.
Owner:NANKAI UNIV

Ultraviolet-curable and moisture-curable adhesive composition

The invention provides an adhesive composition. Based on the total weight of the adhesive composition, the adhesive composition comprises the following components in percentage by weight: (A), about 20wt%-60wt% of silane-capped oligomer, (B), about 20wt%-60wt% of (methyl) acrylic ester monomer, (C), about 0-50wt% of (methyl) acrylic ester oligomer, (D), about 0.5wt%-5wt% of a photoinitiator and (E), about 0-0.5wt% of a metal organic compound catalyst. The adhesive composition is ultraviolet-curable and moisture-curable. The invention further provides a method using the adhesive composition, wherein the method comprises the following steps of: (i) coating the adhesive to the to-be-adhered base materials; (ii), laminating / stacking the to-be-adhered base materials to form a part; (iii), radiating the part by ultraviolet light; and (iv), placing the part under the room temperature. Besides, the invention further relates to the use of the adhesive composition in a display screen, a touch screen and an optical apparatus.
Owner:HENKEL KGAA +1

Spraying apparatus for metal-organic chemical vapor deposition equipment

The present invention discloses a spraying apparatus for metal-organic chemical vapor deposition (MOCVD) equipment. The apparatus comprises at least two transportation channels. Each transportation channel comprises air inlets, a cavity and through holes, wherein the air inlets, the cavity and the through holes are communicated. The positions between the through holes of all the transportation channels are the nested structures. According to the present invention, the uniform mixing effect of a plurality of gases can be improved by the spraying apparatus for the MOCVD equipment.
Owner:彭继忠

Compound catalyst with nanometer core-shell structure and preparing method of compound catalyst

The invention discloses a compound catalyst with a nanometer core-shell structure and a preparing method of the compound catalyst. The compound catalyst comprises metallic oxide nanometer particles, the metallic oxide nanometer particles are coated with a carbon layer, and multiple precious metal nanometer particles are uniformly distributed outside the carbon layer, wherein the particle diameterof the metallic oxide nanometer particles is 20-50 nm, the particle diameter of the precious metal nanometer particles is 2-10 nm, and the thickness of the carbon layer is 2-10 nm. The compound catalyst can prevent aggregation of the precious metal nanometer particles, and change the electronic state and adsorption properties of the surface of the precious metal nanometer particles, and then the catalysis performance is improved; meanwhile, the carbon layer can strengthen the mutual acting force among the precious metal nanometer particles and the metallic oxide nanometer particles. Precursorslike chlorizated salts and nitrate are adopted, metallo-organic compounds needed for preparation of a catalyst of a specific structure are omitted, and the preparing cost is lowered; meanwhile, templates are not needed in the preparing process, and the operation is simple and easy to control.
Owner:XI AN JIAOTONG UNIV

Bifunctional catalyst for catalyzing ORR and OER and preparation and application of bifunctional catalyst

The invention discloses a bifunctional catalyst for catalyzing ORR and OER and preparation and application of the bifunctional catalyst. The bifunctional catalyst is a nitrogen-doped MOF bifunctionalair catalyst under the combined action of binary metal, wherein the binary metal is Fe and Co. The MOF bifunctional air catalyst is nano-particles with a regular dodecahedron structure, so that the cost can be greatly reduced, and large-scale popularization and application can be realized. The method disclosed by the invention is realized by preparing a precursor through a constant-temperature solvothermal reaction, centrifugally washing and purifying the precursor and carbonizing at a high temperature to obtain the catalyst, and is simple to operate and easy to control. Cheap and basically harmless chemicals such as metal nitrate are selected as raw materials in the preparation process, the obtained precursor purifying and drying method is simple, convenient and low in time consumption, ametal organic compound required for preparing a catalyst with a special structure is avoided, and the cost can be further reduced.
Owner:XI AN JIAOTONG UNIV

Method and apparatus for forming thin film of metal

The present invention relates to a method of and an apparatus for forming a thin metal film of copper, silver, or the like on a surface of a semiconductor or another substrate. A method of forming a thin metal film, comprises preparing a dispersed liquid having a metal-containing organic compound dispersed in a predetermined solvent, coating the dispersed liquid on a surface of a substrate and evaporating the solvent to form a coating layer, and applying an energy beam to the coating layer to decompose away an organic substance contained in the coating layer in an area irradiated with the energy beam and bond metal contained in the coating layer.According to the present invention, it is possible to form a thin metal film of good quality efficiently and stably. The thin metal film used as metal interconnects in highly integrated semiconductor circuits contributes to the progress of a process of fabricating semiconductor devices.
Owner:EBARA CORP

Metal complex using pyridine as matrix and synthetic method thereof

The invention provides a metallic complex taking pyridine as parent body. It comprises following steps: taking picoline as raw material, placing trimethyl silicon base on substituent group after modification, carrying out addition reaction with benzenenitrile and getting a kind of metallic organic compound complexed witheta3-aza and pyridine. The method is characterized by temperate reaction condition, simple process, fast reaction speed and high productivity. The complex can be used as catalyst for alkene polymerization, and is characterized by long endurance, low cost, stable performance for oxygen atom and other foreign atoms in functional group, high activity and adjustable selectivity.
Owner:SHANXI UNIV

Preparation method of magnetic silicon carbide ceramic nano particles

The invention provides a preparation method of magnetic silicon carbide ceramic nano particles, and relates to silicon carbides. The method comprises the steps that 1, magnetic metallo-organic compounds and polycarbosilane react in a solution, magnetic metal sol is obtained; 2, the magnetic metal sol obtained from the step 1 and pitch are mixed and react, then solvents are eliminated, and a mixture with the evenly distributed magnetic metal polycarbosilane precursors and pitch is obtained; 3, the mixture obtained in the step 2 is placed in a high temperature furnace, air or oxygen is led into the high temperature furnace to oxygenize the mixture, then the mixture is cooled, and cross-linking by-products are obtained; 4, the cross-linking by-products are placed in the high temperature furnace, inert gases are led to the high temperature furnace to carbonize the cross-linking by-products, the cross-linking by-products are cooled, and carbon-scattered magnetic silicon carbide ceramic nano particles are obtained; 5, the carbon-scattered magnetic silicon carbide ceramic nano particles are heated in an air atmosphere to an oxygenolysis decomposition temperature for carbon removing, and the magnetic silicon carbide ceramic nano particles are obtained. The magnetic silicon carbide ceramic nano particles can attenuate certain electromagnetic radiation due to the fact that the magnetic silicon carbide ceramic nano particles have both magnetic loss and dielectric loss, and an electromagnetic wave absorption effect is achieved.
Owner:XIAMEN UNIV

Plasma-enhanced pulsed deposition of metal carbide films

Methods of forming a metal carbide film are provided. In some embodiments, a substrate is exposed to alternating pulses of a transition metal species and plasma-excited argon. The transition metal species is reacted with a carbon species to deposit a metal carbide film. The substrate is exposed to the carbon species simultaneously with the transition metal species, or the substrate is exposed to the carbon species in pulses temporally separated from the pulses of the transition metal species. In some embodiments, the carbon species and the transition metal species form parts of the same precursor compound, e.g., a metal organic compound.
Owner:ASM IP HLDG BV

Preparation method of highly pure alpha-aluminum oxide

InactiveCN101920979APhysicochemical parameters can be adjustedShort reaction timeAluminium oxide/hydroxide preparationAlcoholAlkoxy group
The invention provides a preparation method of highly pure alpha-aluminum oxide, belonging to the technical field of metal organic compound synthesis. The preparation method comprises the following steps of making metal aluminum having purity of more than 99.5% react with mixed alcohol to prepare aluminum alkoxy, and then hydrolyzing, aging and drying the aluminum alkoxy to obtain highly pure alpha-aluminum oxide. The invention overcomes the purification difficulty when the aluminum alkoxy is prepared by low-carbon alcohol and the shortages of low reaction efficiency when the aluminum alkoxy is prepared by high-carbon alcohol; the alpha-aluminum oxide with the purity as high as 99.9% can be obtained by controlling the mixing alcohol proportion and the hydrolysis condition; and the invention simplifies the preparation technique of the highly pure alpha-aluminum oxide and has high preparation efficiency and low preparation cost.
Owner:BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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