50 results about "Molybdenum compounds" patented technology

The invention discloses a high-initial-efficiency fast-charge graphite composite material and a preparation method thereof, the composite material is of a core-shell structure, the core is graphite, and the shell is lithium sulfonate / lithium molybdate and an amorphous carbon coating layer thereof; the mass ratio of the shell is 5-15 wt% according to the mass ratio of the composite material being 100%. The preparation method comprises the following steps: adding a molybdenum compound into a solvent to prepare a solution, adding graphite oxide, an inorganic lithium salt and a carbon nanotube conductive solution, reacting for 2-12 hours at the temperature of 50-120 DEG C, filtering, carbonizing filter residues to obtain a lithium molybdate conductive agent coated graphite material, and depositing a lithium sulfonate derivative on the surface of the lithium molybdate conductive agent coated graphite material by an atomization method to obtain the lithium molybdate conductive agent coated graphite material. The electron and ion conductivity of the material can be improved, and the rate and the first efficiency of the material can be improved.

A resin composition contains: a curable resin (A); an acrylic-monomer copolymer (B) having a structure expressed by formulae (1) to (3) and having a weight average molecular weight equal to or greater than 10,000 and equal to or less than 900,000; an inorganic filler (C) where a molybdenum compound is present on at least a part of a surface thereof; and another inorganic filler (D) different from the inorganic filler (C). R1 is either a hydrogen atom or a methyl group. R2 includes at least one of a glycidyl group or an epoxidized alkyl group which is selected from the group consisting of a hydrogen atom, an alkyl group, the glycidyl group, and the epoxidized alkyl group. R3 is either a hydrogen atom or a methyl group. R4 is Ph (phenyl group), —COOCH2Ph, or —COO(CH2)2Ph.

Provided are alumina particles containing molybdenum and with their shape controlled. The alumina particles contain phosphorus and molybdenum. The alumina particles are preferably plate-like or card house-like. The phosphorus is preferably unevenly distributed in surface layers of the alumina particles. Also provided are a resin composition containing the alumina particles and a resin, a molded body made by molding the resin composition, and a method for producing the alumina particle including a step of firing the aluminum compound in the presence of a molybdenum compound and a phosphorous compound.

The present invention relates to the technical field of wood-plastic composites, and provides a PVC wood-plastic material having strong smoke suppression and flame retardancy, and a preparation method therefor. The PVC wood-plastic material comprises the following components in parts by weight: 70-100 parts of a PVC resin, 20-30 parts of wood powder, 20-30 parts of calcium carbonate, 15-20 parts of a smoke suppression material, 10-15 parts of a flame retardant, 1-6 parts of a foaming agent, 5-10 parts of a stabilizer, 1-2 parts of a coupling agent, 5-10 parts of a processing aid, and 1-4 parts of a lubricant, wherein the smoke suppression material comprises a molybdenum compound, ferrocene and an oxalate dihydrate in a mass ratio of 1:(0.5-1.5):(5-10). The preparation method comprises the end-capping modification of the wood powder and the preparation of the PVC wood-plastic material. The prepared PVC wood-plastic material has excellent flame retardancy and smoke suppression properties.

The present invention belongs to the field of chemical engineering. Disclosed are an acrylonitrile catalyst, and a preparation method therefor and the use thereof. The preparation method comprises: (1) mixing solutions of a molybdenum compound and a bismuth compound at an Mo / Bi molar ratio of 0.5-1.5 to prepare bismuth molybdate containing an α-phase and / or a γ-phase; (2) synthesizing a pentasil-type molecular sieve having an Si / V molar ratio of 50-150 from a silicon source, an organic amine, and a vanadium compound; (3) mixing a silica sol with a molybdenum compound solution at an Si / Mo molar ratio of 0.5-1, then sequentially adding solutions of a nickel, a tungsten, and a thallium compound, and phosphoric acid, the molecular sieve, and the bismuth molybdate thereto, such that the ratio of the weight percentages of Mo, Bi, Ni, W, Tl, V, and P in the catalyst, on the basis of oxides, is (37-38):(4-6):(3-5):(2-3):(0.2-0.3):(0.1-0.3):(0.7-0.8); (4) adding SiO2 powder thereto, such that SiO2 accounts for 45 wt% to 55 wt% of the catalyst; and (5) pulping and homogenizing the resulting mixture, then spray molding same at an outlet temperature of 150-180°C, and calcining same in an air atmosphere at 550-680°C for 1-6 h. The catalyst has a good activity, selectivity and stability, and is wear-resistant.

This invention belongs to the field of synthetic rubber preparation technology, specifically relating to low Mooney viscosity atactic 1,2-polybutadiene, its preparation method, and its applications. The preparation method of the low Mooney viscosity atactic 1,2-polybutadiene includes the following steps: under a protective gas atmosphere, adding a phosphate ester compound to a molybdenum compound, aging and cooling, then adding toluene to obtain a main catalyst; placing a trialkylaluminum alkane solution in an ice-water bath, adding aryloxy ligands dropwise to the container, and reacting in an ice-water bath to obtain a co-catalyst; dissolving butadiene in an alkane solution, adding the co-catalyst, main catalyst, activator, and molecular weight regulator respectively, and carrying out a polymerization reaction to obtain low Mooney viscosity atactic 1,2-polybutadiene. This invention provides a method for preparing low Mooney viscosity atactic 1,2-polybutadiene with high conversion rate; the obtained 1,2-PB has a low Mooney value and a high 1,2-structure content; it can be applied to rubber additives and damping materials to improve their performance.

The invention discloses a method for synthesizing benzofuran and indole compounds through molybdenum-catalyzed intermolecular deoxygenation cycloaddition reaction, which comprises the following steps: by taking an o-hydroxyphenylacetylene compound or an o-aminophenylacetylene compound as a substrate A and a 1, 3-dicarbonyl compound as a substrate B, reacting under the action of a molybdenum catalyst, a ligand and an additive, thereby obtaining the benzofuran and indole compounds. And carrying out an intermolecular deoxygenation cycloaddition reaction in an organic solvent to generate a corresponding benzofuran or indole compound. The invention provides a method for synthesizing benzofuran and indole compounds through molybdenum-catalyzed intermolecular deoxygenation cycloaddition reaction, the method takes a molybdenum compound as a catalyst, the reaction condition is mild, the atom economy is high, the functional group compatibility is good, and various substituted benzofuran and indole compounds can be efficiently constructed; and a new path is provided for synthesis of the important heterocyclic compounds.

The instant disclosure generally relates to lubricating compositions having an oil of lubricating viscosity, a mixture of dispersants including a high TBN dispersant having a number average molecular weight of 2000 or higher, a low TBN dispersant having a number average molecular weight of 2000 or higher, a magnesium detergent and a molybdenum compound. The lubricating compositions of the invention contain less than 120 ppm boron and are substantially free of low molecular weight dispersants.

The present invention relates to a molybdenum compound, a method for preparing same, a composition comprising same for depositing a molybdenum film-containing thin film, and a method for manufacturing a molybdenum-containing thin film by using same. The employment of the molybdenum compound of the present invention having excellent thermal stability, high volatility, and improved vapor pressure can manufacture a molybdenum-containing thin film with a uniform thickness at an improved deposition rate.

The invention discloses a molybdenum oxide sputtering target material and a preparation method and application thereof. Comprising the following raw materials in parts by weight: 60-90 parts of a molybdenum-containing compound; 10-30 parts by weight of a metal oxide M1; 5-20 parts by weight of metal M2; the molybdenum-containing compound is selected from at least one of MoO2, MoO3, Mo4O11 or MoN; the metal oxide M1 is selected from at least one of TaO2, Ta2O5, NbO and Nb2O5; and the metal M2 is selected from at least one of Cu, Zn, Al, Mg, Ca or Ba. According to the method, the molybdenum-containing compound, the metal oxide M1 and the metal M2 are used as raw materials, sintering at normal pressure and low temperature is achieved by introducing the metal M2, and the molybdenum oxide target material with high density and good conductivity can still be obtained.

To provide a resin composition excellent in drilling processability while maintaining good heat resistance and conductor adhesiveness, a prepreg, a laminate, a printed wiring board and a semiconductor package using the resin composition, and a method for producing a printed wiring board.SOLUTION: There are provided a resin composition containing (A) a thermosetting resin, (B) a molybdenum compound, and (C) one or more selected from the group consisting of fullerene and fullerene derivatives, a prepreg, a laminate, a printed wiring board, and a semiconductor package using the resin composition, and a method for manufacturing the printed wiring board.SELECTED DRAWING: None

A driveline lubricating composition for electric or hybrid-electric motor systems including a phosphorus antiwear additive and a multi-functional oil-soluble organolmolybdenum friction modifier to provide friction modification and low copper leaching.

This application provides a composite cathode material, its preparation method, a solid-state cathode sheet, and an all-solid-state battery. The preparation method includes: sequentially mixing a sulfur source and a molybdenum source and subjecting them to a first heat treatment to obtain a sulfur-molybdenum compound; dispersing the sulfur-molybdenum compound, cyclooctasulfide, and a lithium-containing electrolyte to obtain an intermediate product; and subjecting excess titanium source, excess sulfur powder, and the first product to a second heat treatment, so that the titanium source and sulfur powder react and deposit in a gaseous state on the surface of the intermediate product to obtain the composite cathode material. This application employs a phase structure design of an all-electrochemical active material and, by optimizing the electronic and ionic conductivity of the cathode material and controlling the uniformity and stability of its microstructure, achieves a significant improvement in the energy density and cycle stability of the all-solid-state battery.

A composite according to the present invention contains a molybdenum compound, a first metal (PM), and a second metal (M). The first metal (PM) is platinum or a combination of platinum and palladium, and the second metal (M) is one or more selected from the group consisting of metals.

The present disclosure addresses the problem of providing a method for producing molybdenum trioxide in which the Sb content is reduced. A method for producing molybdenum trioxide comprises a step for mixing a starting material comprising a molybdenum compound or a hydrate thereof with chlorine gas, hydrogen chloride, or a chloride, and a step for heating the resulting mixture at a temperature of 70 DEG C or higher. Furthermore, a method for producing molybdenum trioxide comprises a step for mixing a raw material comprising molybdenum trioxide, ammonium molybdate, or a hydrate thereof with ammonium chloride, and a step for heating the resulting mixture at a temperature of 180 DEG C or higher.

To provide a method for producing molybdenum trioxide powder that can reduce material costs and decrease the environmental burden and disposal costs associated with the disposal of by-products generated by calcination. [Solution] The manufacturing method comprises: a first calcination step S11 in which a first raw material mixture containing a molybdenum oxide precursor compound and metal compound particles other than the molybdenum compound is placed in a sheath and calcined; a first cooling step S12 to generate molybdenum trioxide powder; a first crushing step S13 to crush the residue containing metal oxides derived from the metal compound particles remaining in the sheath to form first crushed particles; a second calcination step S21 in which a second raw material mixture containing a molybdenum oxide precursor compound and the first crushed particles is placed in a sheath and calcined; a second cooling step S22 to generate molybdenum trioxide powder; and a second crushing step S23 to crush the residue containing metal oxides derived from the first crushed particles remaining in the sheath to form second crushed particles.

Manufacturing process for tungsten-doped cobalt tetroxide, comprising the following steps: S1: Dissolving a tungsten-containing compound and a molybdenum-containing compound in an alkaline liquid to obtain a mixed solution; S2: simultaneous addition of the mixed solution, a cobalt salt solution and a complexing agent to an alkaline solution to react until a reaction material reaches a target particle size; followed by aging and carrying out a solid-liquid separation (SLS) to obtain a precipitation, wherein the alkaline solution comprises the mixed solution and ammonia water; S3: Roasting the precipitate in an oxygenated atmosphere to obtain a roasted material; and S4: Soaking the roasted material in a sodium sulfide solution, adjusting the pH of the solution to 7.2 to 8.5, and performing SLS to obtain the tungsten-doped cobalt tetroxide.

Product containing, on its surface and / or in its core, an additive selected from: - phosphorus compounds other than glasses and glass-ceramics, - tungsten compounds other than glasses and glass-ceramics, molybdenum compounds other than glasses and glass-ceramics, - iron in metallic form, aluminum in metallic form, silicon in metallic form, and mixtures thereof, silicon carbide, - boron carbide, silicon nitride, boron nitride, - glasses containing phosphorus and / or iron and / or tungsten and / or molybdenum, - glass-ceramics containing phosphorus and / or iron and / or tungsten and / or molybdenum, - and mixtures thereof, and having, excluding the additive, the following chemical analysis, in mass percentages based on oxides: - Cr2O3 - 2%, and - Cr2O3 + Al2O3 + CaO + ZrO2 + MgO + Fe2O3 + SiO2 + TiO2 ≥ 90%, and - Cr2O3 + Al2O3 + MgO ≥ 60%.

A driveline lubricating composition for electric or hybrid-electric motor systems including a phosphorus antiwear additive and a multi-functional oil-soluble organomolybdenum friction modifier to provide friction modification and low copper leaching.

Described herein are IC devices that include molybdenum or a molybdenum compound, such as compounds including oxygen or nitrogen. The molybdenum may be deposited at a high concentration, e.g., at least 50% atomic density. Also described herein are mid-valent molybdenum precursors for depositing molybdenum, and reactions for producing the mid-valent molybdenum precursors. For example, the molybdenum precursors may be generated by reacting a higher-valent molybdenum compound with an amidinate or a formamidinate.

This invention discloses a method for preparing petroleum coke, comprising the following steps: pre-sulfurizing a catalyst, followed by hydrodesulfurization treatment with aromatic-enriched oil slurry; then polycondensation treatment, collecting the primary fraction; then secondary fractionation of the primary fraction, collecting the secondary fraction; and finally, delayed coking of the secondary fraction to obtain petroleum coke. In the catalyst preparation process, a porous γ-Al₂O₃ support coated with a chitosan layer is impregnated in a mixed aqueous solution of nickel and molybdenum compounds, followed by calcination to obtain the catalyst. This invention selects a suitable catalyst for hydrodesulfurization and combines it with appropriate process conditions to obtain a fraction with good flowability and containing a suitable amount of cycloalkane structure, achieving simultaneous adjustment of the reaction rate and flowability during delayed coking, ultimately obtaining petroleum coke. The petroleum coke obtained by this invention, after graphitization treatment, exhibits high graphitization degree and high capacity.

Lubricating oil compositions having reduced viscosity and improved fuel economy comprising: (50) to (99) wt% at least one Group III, III+, and / or IV base oils; 0.1 to (15) wt% functionalized olefin copolymer having an Mn of from 10,000 to 35,000 g / mol; 0.1 to (20) wt% one or more detergents comprising at least one calcium detergent having a TBN of more than 100 mg KOH / g; at least one calcium detergent having a TBN of 100 mg KOH / g or less; and at least one magnesium detergent, where the difference in the TBN's for the Ca detergents is at least 100 mg KOH / g; 0.01 to (40) wt% one or more dispersants comprising at least one borated dispersant and at least one non-borated dispersant; 0.01 to (20) wt% odsulfurized fatty acid ester; 0.01 to (5) wt% one or more amine or phenol based antioxidants; and 0.001 to (15) wt% molybdenum-containing compound.

The present application relates to the technical field of lubricating technology and electrical insulation medium technology, and provides a lubricating composition for an electrically driven coupling transmission system and a preparation method and application thereof.The lubricating composition takes poly-alpha-olefin as a main body, is matched with synthetic ester, alkylated naphthalene, ash-free total base number carrier, a sulfur-free and phosphorus-free organic tungsten compound with a tungsten element content of 100-300 ppm and a mole ratio of amine nitrogen to tungsten of 0.5-3.0, functionalized hexagonal boron nitride nanosheet, a sulfur-free and phosphorus-free organic molybdenum compound and demulsification aid.The lubricating composition has low power factor, high breakdown voltage and high volume resistivity under the conditions of low ash, low sulfur, low phosphorus and prohibition of ZDDP and 1,3,4-thiadiazole, and the 10 mu m filtration one-pass rate is not less than 98% under the condition of a water content of 300+ / -30 mg / kg, and is suitable for an integrated electric drive system of a motor, a gear and a bearing.

A device for monitoring a concentration of silicate in a fluid including the silicate includes a concentrator, a solution reactor configured to introduce a molybdic compound and a reducer to the fluid, and a concentration analyzer configured to output a quantified silicate concentration by measuring an absorbance, wherein the concentrator includes a first electrode, a second electrode spaced apart from the first electrode, a current collector configured to supply power to the first electrode and the second electrode at one side of each of the first electrode and the second electrode, a concentrator flow path which is disposed between the first electrode and the second electrode and is a passage through which the fluid moves, and a cation exchange membrane disposed between the first electrode and the concentrator flow path. A silicate concentration monitoring method is also provided.

The present invention relates to a molybdenum compound, a method for producing the same, a composition for vapor deposition of a molybdenum-containing thin film containing the same, and a method for producing a molybdenum-containing thin film using the same. By employing the molybdenum compound of the present invention, which has excellent thermal stability, high volatility, and improved vapor pressure, a molybdenum-containing thin film of uniform thickness can be produced at an improved deposition rate.

The present application relates to the technical field of oxidation catalyst, in particular to an oxidation catalyst, a preparation method and application thereof and a preparation method of C3-C4 alkenoic acid.The oxidation catalyst provided by the present application has a ratio of surface Fe element content to total Fe element content of the catalyst <0.1, more Fe elements are sealed inside the catalyst, and the surface iron molybdate content is as low as possible;the iron molybdate compound inside the catalyst can provide more active oxygen for the reaction, and can also promote the re-oxidation of the catalyst, thereby improving the catalyst and activity.The oxidation catalyst is used for the oxidation of aldehyde to prepare acid, such as the oxidation of propenal to prepare propenoic acid, and has high propenal conversion rate and high propenoic acid yield.

To provide a method for producing molybdenum trioxide powder capable of reducing material costs and decreasing environmental burden and disposal costs associated with disposal of by-products generated during calcination. The present invention provides a method for producing molybdenum trioxide powder, the method containing: a first calcining step S11 of charging a first raw material mixture containing a molybdenum oxide precursor compound and metal compound particles other than molybdenum compounds into a sagger and calcining the mixture; a first cooling step S12 of generating molybdenum trioxide powder; a first crushing step S13 of crushing a residue containing a metal oxide derived from the metal compound particles which remains in the sagger, to obtain first crushed particles; a second calcining step S21 of charging a second raw material mixture containing the molybdenum oxide precursor compound and the first crushed particles into a sagger and calcining the mixture; a second cooling step S22 of generating molybdenum trioxide powder; and a second crushing step S23 of crushing a residue containing a metal oxide derived from the first crushed particles which remains in the sagger, to obtain second crushed particles.

This invention relates to a method for reducing abnormal combustion events during engine operation of a hydrogen-fired internal combustion engine (HICE), the method comprising the steps of: a) providing the hydrogen-fired internal combustion engine with a lubricating oil composition comprising or a mixture of the following components: i) a base oil having a KV100 of less than or equal to 12 cSt and comprising more than 50% by weight of the composition, and comprising Group I, Group II, Group III, Group IV base oils or combinations thereof; ii) at least one over-alkaline metal-containing detergent having a total base number (KOH / g) of greater than or equal to 9 and less than or equal to 500, and comprising a treatment level providing the composition with 100 to 5000 ppm of total metals and 0.15% to 8.0% by weight of total soap; iii) at least one molybdenum-containing compound comprising a treatment level providing the composition with 20 to 2000 ppm of total molybdenum by weight; and iv) The lubricating oil composition has a total sulfate ash content of less than or equal to 2.0% by weight, a total phosphorus level of less than or equal to 0.120% by weight, and an SAE viscosity grade of 25W-X, 20W-X, 15W-X, 10W-X, 5W-X, or 0W-X, where X represents any one of 8, 12, 16, 20, 30, 40, 50, or 60; b) supplying hydrogen-containing fuel to the HICE; and c) burning the fuel in the HICE. The present invention also provides lubricating oil compositions and concentrates for use in HICE to reduce the tendency for malfunctions.

The invention relates to a method for preparing molybdenum carbide by taking molybdenum sulfide as a raw material, and belongs to the technical field of inorganic material preparation. The method comprises the following steps: preparing a molybdenum-containing compound, an iron-containing compound and carbonaceous reducing agents with different particle sizes; mixing a large-particle-size carbonaceous reducing agent with part of the raw materials, filling the mixture into a central area of the pressing block, and applying relatively high pressure for compaction; mixing the fine-particle-size carbonaceous reducing agent with the remaining raw materials, filling an outer layer area of the pressing block with the mixture, and applying relatively low pressure for compaction; reacting for 1-20 hours at the temperature of 1000-1300 DEG C in an inert atmosphere; and carrying out acid leaching, filtering and drying on the reaction product to obtain the high-purity molybdenum carbide. Through collaborative optimization of partition density and particle size distribution, dynamic release of a carbon source and regulation and control of a reaction path are achieved, side reactions and impurity generation are effectively inhibited, the purity of the main phase MoC is remarkably improved, the process is simple, the cost is low, the method is suitable for industrial production, and the obtained molybdenum carbide can be used for preparing catalyst materials.

The disclosure relates to methods of operating transmissions and for providing bearing pitting protection and a passing static friction performance according to Caterpillar TO-4 SEQ 1221 in a transmission including lubricating the transmission with a transmission fluid composition comprising:greater than 50 wt. % of a base oil of lubricating viscosity;an amount of one or more overbased calcium sulfonate detergent(s) to provide from about 2000 ppm to about 5000 ppm of calcium;an amount of one or more zinc dialkyl dithiophosphate compound(s) to provide from about 700 ppm to about 1500 ppm of zinc; andan amount of one or more molybdenum-containing compound(s) to provide from about 5 ppmw to about 300 ppmw molybdenum, and the one or more molybdenum-containing compound(s) is selected from the group consisting of molybdenum dithiocarbamates, molybdenum phosphorodithioates, organomolybdenum complexes, molybdenum dialkyldithiophosphates and mixtures thereof. The disclosure also relates to the compositions used in these methods.