65 results about "Molybdenum chloride" patented technology

The invention discloses an etching method, a low-temperature polysilicon thin film transistor and an AMOLED panel. The etching method comprises the steps of pumping sulfur hexafluoride SF<6> and oxygen O<2> to a process chamber to perform etching on a metal molybdenum Mo layer to obtain molybdenum fluoride MoF<x>; pumping chlorine Cl<2> and oxygen O<2> to perform etching on the metal molybdenum Molayer to obtain molybdenum chloride MoCl<x>; and pumping a fluoro-etching gas and oxygen O<2> to be reacted with MoCl<x> to obtain easily volatile molybdenum oxyfluoride MoF<x>O<y>. By virtue of thescheme provided by the invention, residue of dry etching resultants can be reduced, and the problem of a display abnormal phenomenon of the AMOLED panel is solved.

The invention relates to the technical field of sewage treatment, in particular to a sewage flocculant. The flocculant consists of the following components in parts by weight: 12-25 parts of poly-aluminum calcium chloride, 5-15 parts of ferric chloride, 2-10 parts of aluminum potassium sulfate, 2-8 parts of sodium carboxymethylcellulose, 1-6 parts of sodium hypochlorite, 10-30 parts of poly-molybdenum chloride, 10-20 parts of diatomite, 10-20 parts of zeolite and 0.01-0.05 part of additives. The sewage flocculant has the beneficial effects that the obtained flocculant is good in degradability, low in ecotoxicity, free of stimulation on human bodies, obvious in flocculation effect on the treatment of various complex sewage and high in cost performance for dehydration of sludge; the sewage flocculant has the characteristics of no toxicity and residue for human bodies, good flocculation effect and wide application range.

The invention relates to a high-density boundary double-layer molybdenum disulfide nano sheet and a preparation method thereof. The preparation method comprises the following steps: S1, placing a glass slide as a substrate into a hydrofluoric acid for soaking for 5-10 minutes, then cleaning and removing the silicate reaction product on the surface, and carrying out drying for later use; and S2, using a chemical vapor deposition method, using sublimated sulfur as a sulfur source, and molybdenum trioxide, molybdenum chloride and ammonium tathiomolybdate as molybdenym sources, and using a three-temperature-zone tube furnace to make molybdenum disulfide to grow on the substrate. The double-layer molybdenum disulfide nano sheet provided by the invention has uniform size, higher density boundary, and good conductivity and catalytic performance, and the preparation method is simple in operation, less in process flow and low in cost.

The invention aims to provide a novel method for preparing a lot of graphene/molybdenum disulfide composite materials. The method comprises the specific steps: (1) preparing commercially-purchased glucose and melamine taken as raw materials into graphene by a high-temperature cracking method; (2) dispersing the graphene prepared by the step (1) and commercially-purchased molybdenum chloride (MoCl5) into absolute ethyl alcohol; carrying out ultrasonic treatment, agitating and drying in vacuum; then grinding to obtain a mixed raw material; putting the mixed raw material into a square ceramic boat and putting the ceramic boat into a middle part of a horizontal pipe type furnace with the length of 90cm; weighing a certain amount of sulfur powder and putting the sulfur powder into the other square ceramic boat; putting the square boat into a 18cm part of an argon inlet of the horizontal pipe type furnace; sealing the horizontal pipe type furnace and vacuumizing to 10<-4>MPa; introducing argon with a certain flow speed and keeping a low-pressure condition; raising the temperature to a pre-set temperature and keeping the heat for 30 minutes; and finally, naturally cooling to the room temperature under the protection of the argon and collecting an obtained product in the ceramic boat for containing the mixed raw material.

The present invention discloses one kind of milk cow feed. Pre-mixed material is first produced with zinc sulfate, ferrous sulfate, anhydrous cupric sulfate, potassium iodide, sodium selenite, cobalt chloride, manganese sulfate, molybdenum chloride, vitamin A, vitamin D3 and vitamin E and through mixing; and then mixed with slow released non-protein nitrogen, calcium biphosphate, feather powder, cotton seed dregs, tree leaf powder, calcium carbonate, table salt, anhydrous sodium sulfate, sodium bicarbonate, yeast and vegetable oil through stirring homogeneously to produce the milk cow feed. The milk cow feed has balanced nutrients, protein capable of being decomposed directly in the rumen of milk cow, high absorption rate and capacity of raising milk yield.

A method for separating molybdenum and tungsten from molybdenum-tungsten concentrate is characterized by including well mixing molybdenum-tungsten concentrate with reducing agent; introducing nitrogen for chloridizing roasting; allowing molybdenum and tungsten to volatilize in chloride form; collecting molybdenum and tungsten chlorides and adding the chlorides into water or dilute hydrochloric acid solution to form tungsten chloride precipitate and molybdenum chloride solution; filtering and cleaning to separate the molybdenum and tungsten. The molybdenum-tungsten concentrate is decomposed by one-step chlorination process, and molybdenum and tungsten are separated by taking the advantage of property difference between the molybdenum chloride and the tungsten chloride. The method can be used to process concentrates different in molybdenum and tungsten content, and has the advantages of simplicity, low reagent consumption and the like.

The invention discloses a preparation method for a supported molybdenum oxide catalyst and an application thereof. The preparation method comprises the following steps: firstly preparing a molybdenumdichloride hydrate precursor, dissolving the obtained molybdenum dichloride hydrate precursor into methanol or ethanol, slowly adding the obtained liquid into a carrier dropwise after the precursor iscompletely dissolved, allowing the obtained mixture to stand, performing evaporation, and performing roasting under an inert gas atmosphere to obtain the supported molybdenum oxide catalyst. The application of the supported molybdenum oxide catalyst including that the supported molybdenum oxide catalyst is used for hydrogenation depolymerization of lignin, is used for preparing aniline from nitrobenzene and is used as a composite electrode material. The catalyst provided by the invention has the advantages of having small particles and a large specific surface area, being beneficial for reactant diffusion and active site exposure and the like, and meanwhile the catalyst has similar noble-metal catalytic performance, and can be widely applied to the fields such as biomass catalytic conversion and electrode materials.

The invention relates to the technical field of functional rubber and preparation thereof, in particular to special composite wear-resistant rubber for an inorganic enhanced driving belt and a preparation method. The special composite wear-resistant rubber comprises butadiene styrene rubber, butadiene rubber, ethylene propylene diene monomer, wear-resistant fillers, sulfur, coupling agents, filling reinforcing agents, anti-aging agents, softening agents and vulcanizing agents, wherein the wear-resistant fillers are layered silicate wear-resistant fillers of molybdenum disulfide coated graphene. The method includes the steps: spraying precursor liquid prepared from molybdenum chloride and nickel chloride to the surface of graphene loaded layered silicate, drying the layered silicate, sintering the layered silicate in a calcining furnace with sulfur-containing nitrogen atmosphere and cooling the layered silicate to obtain the wear-resistant fillers; performing mixing, heat treatment andmilling on rubber raw materials to obtain the special composite wear-resistant rubber. The special composite wear-resistant rubber for the inorganic enhanced driving belt has the advantages of good wear resistance and obvious tensile strength improvement effects, the added graphene does not easily fall off and is high in stability, and the service time of the special composite wear-resistant rubber for the inorganic enhanced driving belt is prolonged.

The invention provides a preparation method of a molybdenum disulfide nanosheet @ cobalt sulfide nanoneedle in-situ array electrode. The preparation method comprises the steps of conducting sulfuration on a substrate where an cobaltosic oxide array grows in Ar+S atmosphere or N2+S atmosphere the first time, so that an cobalt sulfide nanoneedle array electrode is obtained; dissolving molybdenum chloride into volatile nonaqueous solvent, coating the surface of the cobalt sulfide nanoneedle array electrode with an obtained solution, and drying the cobalt sulfide nanoneedle array electrode for use; and then, putting a sample in the Ar+S atmosphere or the N2+S atmosphere, conducting sulfuration the second time, conducting furnace cooling, and taking the sample out, so that the molybdenum disulfide nanosheet @ cobalt sulfide nanoneedle in-situ array electrode is obtained.

The invention relates to a pyramidal molybdenum disulfide nanosheet and a preparation method and an application thereof. The method comprises the following steps: S1) taking a slide glass as a substrate and placing the slide glass in hydrofluoric acid for immersion for 3-5 min, then performing cleaning and removing silicate on a surface to generate a product, drying the product for standby; S2) using a chemical vapor deposition method, taking sublimed sulfur and molybdenum trioxide, molybdenum chloride or ammonium tetrathiomolybdate as a sulfur source and a molybdenum source, and growing molybdenum disulfide on a substrate of a three-temperature zone tubular furnace. The pyramidal molybdenum disulfide nanosheet has an uniform size, has higher density boundary, and has good conductive performance and catalysis performance.

The invention relates to a dialkyl dicyclopentadienyl molybdenum complex as well as a preparation method and application thereof. The preparation method comprises the following steps: dissolving molybdenum penta-chloride in a first solvent, cooling for the first time to prepare a first solution; dissolving trialkyl silicon cyclopentadiene lithium and sodium borohydride in a second solvent, coolingfor the second time to prepare a second solution; mixing the first solution and the second solution, stirring for 2-4 hours, heating to 55-75 DEG C, reacting for 20-18 hours, adding alkane into the reaction product, extracting, collecting the water phase, filtering, adding chloroform into the filtrate, stirring for 8-12 hours to prepare bis(trialkylsilylcyclopentadienyl) molybdenum dichloride; and reacting bis(trialkylsilylcyclopentadienyl) molybdenum dichloride with alkyl lithium. According to the preparation method, a dicyclopentadienyl molybdenum dichloride complex is synthesized in one step and then reacts with alkyl lithium to prepare the dialkyl dicyclopentadienyl molybdenum complex, so that the reaction steps are shortened, the production cost is reduced, the high yield is maintained, and the industrial production is facilitated.

The invention provides a process for treating neopentyl glycol production sewage by hydrocondensation. The process is characterized in that neopentyl glycol production sewage is sequentially subjected to steam stripping, cooling, ion exchange, anaerobic biological treatment, and treatment through an A/O biological membrane. The process specifically comprises the following steps: feeding production sewage into a steam stripping column; heating to reach 95 DEG C; recovering materials from the sewage; cooling to reach 30 to 40 DEG C; transferring into an ion exchanger; adsorbing organic matters from sewage; then adding phosphate, cobalt chloride and molybdenum chloride to the sewage; performing anaerobic biological treatment; treating sewage through an EGSB (Expanded Granular Sludge Bed); transferring the water from the EGSB reactor into an anaerobic sludge recovery tank; feeding into an A/O bio-membrane reactor; denitriding and degrading the organic matters in the sewage; transferring the outlet water into a secondary precipitating tank to precipitate sludge until the water quality meets nationally specified drainage standard; and then draining up to standard.

The invention relates to a diamino molybdenum dicyclopentadienyl complex as well as a preparation method and application thereof. The preparation method comprises the following steps of: dissolving molybdenum pentachloride in a first solvent, and performing cooling to prepare a first solution; dissolving substituted cyclopentadiene lithium and sodium borohydride in a second solvent, and performingcooling to prepare a second solution; mixing the first solution and the second solution, performing stirring for 2-4 hours, performing heating for 55-75 hours, performing a reaction for 20-18 hours,adding alkane into a reaction product, performing extraction, collecting a water phase, performing filtering, adding chloroform into a filtrate, and stirring for 8-12 hours to prepare bis (substitutedcyclopentadiene lithium) molybdenum dichloride; and making the bis (substituted cyclopentadiene lithium) molybdenum dichloride with dialkylamine lithium. According to the preparation method, the dichloro-molybdenum dicyclopentadienyl complex is synthesized in one step and then reacts with the lithium dialkylamine, so that the diamino-molybdenum dicyclopentadienyl complex can be prepared, so thatreaction steps are shortened, production cost is reduced, the higher yield is maintained, and the industrial production is better facilitated.

The invention discloses a synthesis method of a mesalazine drug intermediate 5-aminosalicylic acid. The method includes: in a mixed solution of sodium sulfite and 2-hydroxy-5-methyl-3-nitropyridine, subjecting azobenzene salicylic acid and molybdenum chloride to heating reflux reaction, then adding a xylene solution, conducting cooling, solid precipitation and recrystallization, using an oxalic acid solution to perform dissolving, and carrying out molecular sieve decoloration, filtration, cooling filtration and dehydration, thus obtaining 5-aminosalicylic acid. Compared with the synthesis method of the background technology, the method provided by the invention has obviously shortened reaction time and greatly improved reaction yield. Also, the invention provides a new synthetic route, and lays a good foundation for further improving reaction yield.

The invention provides a microelement tracer agent special for an offshore oilfield. The tracer agent is made from raw materials of a precursor and a post-cursor. The precursor and the post-cursor each contain microelement chloride. A microelement mixture is a praseodymium-molybdenum chloride mixture. The invention further provides a use method of the microelement tracer agent. The use method comprises the step that a prepared precursor solution and a prepared post-cursor solution are sequentially injected into a monitoring well, wherein the volume ratio of the precursor solution to the post-cursor solution is 1:(0.8-1), and the time interval for injection of the precursor solution and injection of the post-cursor solution is 80-120 min. The prepared microelement tracer agent is free of radiation and pollution and good in safety and stability; an HR-ICP-MS instrument is used for detecting, the minimum detection limit can be up to 10-15 (ppq grade) grade; and the microelement tracer agent can be fast disintegrated in water, and evenly diffused and dissolved with the diffusion time no longer than 48 seconds.

The invention discloses a solution method for in-situ preparation of a molybdenum disulfide/graphite paper electrode in particular, an ethanol solution containing molybdenum chloride and thiourea is dropwisely added to the surface of a hydrophilic treated graphite paper, sintered under an inert atmosphere at a high temperature after drying, and taken out after cooling to obtain the molybdenum disulfide/graphite paper electrode. The reagent used in the invention is low in cost and simple in preparation. The prepared molybdenum disulfide/graphite paper electrode is closely bonded with graphite paper without falling off. SEM results show that molybdenum disulfide is uniformly coated on the surface of graphite paper. Relevant electrochemical tests show that the molybdenum disulfide/graphite paper electrode has extremely high conductivity and good electrocatalytic activity.

The invention discloses a preparation method and application of a super-hydrophobic molybdenum-loaded catalyst, and belongs to the technical field of material preparation, electro-catalysis and fine chemical engineering. The high-performance super-hydrophobic molybdenum-loaded phosphotungstic acid electrocatalyst for electrocatalytic nitrogen fixation is developed by using commercial phosphotungstic acid PTA and molybdenum pentachloride as raw materials, feeding in batches, heating and stirring under mild conditions, using phosphotungstic acid with rich oxygen coordination sites as a carrier and using molybdenum chloride pentahydrate as a precursor of a modification species. The prepared electrocatalyst has good stability and electrocatalytic performance, and can effectively solve the problems that in current normal-temperature normal-pressure electrocatalytic synthesis of ammonia, nitrogen is difficult to adsorb and activate, and hydrogen evolution competitive reaction is dominant. And the catalyst has the advantages of simple preparation process, low cost, green and environment-friendly production process and great application potential.

The invention discloses silver electrode paste. The conductive paste consists of the following components, by weight: 75-92 parts of silver powder, 5-12 parts of an organic solvent, 2-3 parts of an organic carrier, 0.5-1 part of alkyl phenol polyoxyethylene ether, and 0.8-5.3 parts of metal microcrystalline glass powder. The particle size D50 of the metal microcrystalline glass powder is 0.3-2 mum. The metal microcrystalline glass powder consists of the following components: 10-50 parts of tellurium dioxide, 15-70 parts of lead oxide, 2-10 parts of zinc oxide, 1-15 parts of molybdenum oxide,5-20 parts of lithium oxide, 0.4-2 parts of tungsten dioxide, 1-6 parts of molybdenum dioxide, 1-4 parts of cobalt monoxide, 1-2 parts of molybdenum chloride, and 0.4-1 part of indium chloride. The conductive paste effectively improves the conversion efficiency of cells, and has the characteristics of high temperature viscosity and large surface tension. Molten glass cannot not flow easily duringa paste sintering process, thereby maintaining a fine line shape.

The invention discloses a conductive slurry used for a solar energy battery. The conductive slurry is prepared from the following components, by weight: 75-92 parts of silver powder, 5-12 parts of anorganic solvent, 2-3 parts of an organic carrier, 0.5-1 part of alkyl phenol polyoxyethylene ether, and 0.8-5.3 parts of metal microcrystalline glass powder. The particle size D50 of the metal microcrystalline glass powder is 0.3-2 [mu]m. The metal microcrystalline glass powder is prepared from the following components: 10-50 parts of tellurium dioxide, 15-70 parts of bismuth oxide, 2-10 parts ofzinc oxide, 1-15 parts of tungsten oxide, 5-20 parts of lithium oxide, 0.4-2 parts of boric acid, 1-6 parts of molybdenum chloride, 1-4 parts of silicon oxide, and 1-2 parts of barium carbonate. The battery conversion efficiency is effectively improved, the conductive slurry has characteristics of large viscosity and large surface tension at high temperature, the molten glass does not flow easilyduring a slurry sintering process, and the fine line is maintained.

The present invention discloses an ammonium persulfate catalyst extracted from coking wastewater and an implementation method therefor. The catalyst comprises the following components in percentage by mass: 85-95% of binuclear cobalt phthalocyanine ammonium sulphonate, 1-5% of molybdenum pentachloride, and 4-15% of disodium EDTA. The bath temperature of the coking wastewater is 65 DEG C. The amount of the catalyst to be added is 1%. The reaction can be performed by blowing air with 12-hour reaction time and a pH range of 7-8.

The invention discloses photovoltaic electrode silver paste. The conductive paste consists of the following components, by weight: 75-92 parts of silver powder, 5-12 parts of an organic solvent, 2-3 parts of an organic carrier, 0.5-1 part of alkyl phenol polyoxyethylene ether, and 0.8-5.3 parts of metal microcrystalline glass powder. The particle size D50 of the metal microcrystalline glass powderis 0.3-2 mu m. The metal microcrystalline glass powder consists of the following components: 10-50 parts of tellurium dioxide, 15-70 parts of lead oxide, 2-10 parts of zinc oxide, 1-15 parts of molybdenum oxide, 5-20 parts of lithium oxide, 0.4-2 parts of aluminium oxide, 1-6 parts of bismuth oxide, 1-4 parts of calcium carbonate, and 1-2 parts of molybdenum chloride. The conductive paste effectively improves the conversion efficiency of cells, and has the characteristics of high temperature viscosity and large surface tension. Molten glass cannot not flow easily during a paste sintering process, thereby maintaining a fine line shape.

Provided is a method of producing a high purity molybdenum oxychloride by including means of sublimating and reaggregating a raw material molybdenum oxychloride in a reduced-pressure atmosphere, or means of retaining a gaseous raw material molybdenum oxychloride, which was synthesized in a vapor phase, in a certain temperature range, and thereby growing crystals to obtain a higher purity molybdenum oxychloride having a high bulk density and high hygroscopicity resistance.

The invention relates to a method for preparing a methacrylic acid catalyst for iso-butane production. According to the invention, in a reaction vessel, 100 crosslinking polystyrene microsphere, titanium chloride, zinc chloride, molybdenum chloride, palladium chloride, lithium chloride, cerium chloride, tetrahydrofuran, bisindolylmaleimide, and 2,5-dimethyl pyrrole are added, and the materials are subjected to a reaction under proper temperature, the obtained products are filtered and dried to obtain the catalyst product.

A cleaning and smelting process for low-grade complex nickel-molybdenum ore comprises the steps that the nickel-molybdenum ore, a chlorinating agent and water are evenly mixed in a certain proportionand granulated, granulated pellets are directly put into a volatilization furnace without drying, and chlorination and volatilization smelting is carried out under a certain heat preservation and heating mechanism and the reducing atmosphere; and arsenic chloride, molybdenum chloride, zinc chloride and other products are recovered from flue gas generated by volatilization in a flue gas collectiondevice. By the adoption of the cleaning and smelting process, all kinds of low-grade complex nickel-molybdenum ore can be treated, molybdenum, zinc, arsenic and other valuable components can be separated in one step, and the volatile slag obtained by volatilization can be sold directly if the requirement of low nickel matte is met. Compared with an existing nickel-molybdenum ore treatment method,the method has the beneficial effects of the low energy consumption, high efficiency, cleanness and environmental protection.