39 results about "Metallogorgia" patented technology

An organometallic compound is provided which includes a central metal atom; and organic ligands capable of forming polydentate bonds to the central metal atom. Related methods and articles having a metal carbide coating are also provided.

The present disclosure relates to a liquid metal jetting ejection nozzle having a nozzle main body and a wetting plate. The nozzle main body has an enlarged opening at a distal end through which a molten metal feedstock material flows during a liquid metal jetting operation, and is formed from a first material having a first wetting characteristic. The wetting plate has an aperture and is secured to the enlarged opening of the nozzle main body. The wetting plate has a second wetting characteristic of a magnitude less than the first wetting characteristic to at least inhibit wetting. This two piece nozzle construction enables optimum materials and construction / fabrication techniques to be used for both components, thus improving performance, durability and reliability of the ejection nozzle.

Coordination complexes are provided comprising at least one metal atom; and organic ligands comprising one or more coordination sites associating with the at least one metal atom. Related methods and articles having a metal carbide coating are also provided, the metal carbide coating being derived from one or more coordination complexes.

The invention belongs to the technical field of hydrogen storage materials, and particularly relates to a metal borohydride composite material, a preparation method thereof and a hydrogen storage material. The preparation method comprises the following steps: activating the carbon-based carrier by adopting an alkaline substance; performing gas-phase fluorination treatment on the activated carbon-based carrier; the carbon fluoride-based carrier is mixed with a metal source, a boron source and a solvent, a solvothermal reaction is driven by hydrogen, metal borohydride is synthesized in situ on the surface of the carbon fluoride-based carrier, metal atoms in the generated metal borohydride react with F atoms in the carbon fluoride-based carrier to form a metal-F bridging phase, and meanwhile, the metal borohydride generates metal vacancies. The metal affinity of fluorine in the carbon fluoride-based carrier is utilized to induce nucleation loading of the metal borohydride in the synthesis process of the metal borohydride, and meanwhile, an interface chemical reaction is carried out to generate vacancies and bridging phases. Vacancies weaken B-H bonds, the hydrogen absorption and desorption heat / dynamics of the material are improved, and the bridging phase improves the structural stability and hydrogen absorption and desorption cycle performance of the material.

To provide a resist composition which, in photolithography employing high-energy radiation, exhibits superior sensitivity, resolution, and LWR, maintains stability, and allows easy handling, and a pattern forming method using the resist composition.SOLUTION: A resist composition contains a metal complex having a metal atom and a ligand represented by the following formula (1a), (1b), or (1c). (In the formulae, R1, R2, R3, R4, R5, R6, and R7 are each independently a hydrogen atom, a carbonyl group, or a hydrocarbyl group having 1 to 20 carbon atoms which may contain a hetero atom. *1 and *2 represent bonding hands to the metal atom).SELECTED DRAWING: None

A connection structure in which the occurrence of warping and cracking is suppressed even when stress is applied to the connection structure, and metal atom-containing particles and a bonding composition used for assembling the connection structure are provided. [Solution] A connection structure A includes a metal atom-containing particle 10 and an adhesive layer 50 including a sintered body 20 of metal particles. The metal atom-containing particle 10 and the sintered body 20 are in contact with each other through a chemical bond, and in the cross section of the adhesive layer 50, 5% or more of the outer periphery of the metal atom-containing particle 10 is in contact with the sintered body.

The invention relates to the technical field of target material preparation, and provides a metal target material and a preparation method thereof.The preparation method comprises the steps that metal raw materials are heated and melted to form melt; carrying out downward continuous casting treatment on the melt to obtain a metal slender rod; the thin metal rod is subjected to continuous upsetting treatment with the deformation quantity exceeding 400%, and a thick metal rod is obtained; the thick metal rod is subjected to continuous extrusion treatment, and a metal pipe is obtained; and carrying out heat treatment on the metal tube, and then machining to obtain the metal target material. According to the preparation method of the metal target material, the melt is treated through downward continuous casting, the high-purity and fine metal rod can be prepared, subsequent continuous upsetting is facilitated to achieve super-large deformation, coarse grains in the metal thin rod are effectively crushed, and the metal thick rod with fine and uniform grains is obtained; the problem that when a large cast ingot is obtained through traditional smelting and casting and then forged, the uniformity of crystal grains is difficult to control accurately is solved, meanwhile, the situation that continuous production of target materials is affected by an intermittent multi-pass forging mode is avoided, and the production efficiency is remarkably improved.

The invention discloses a method for calculating valence states of metal atoms in a metal organic framework material, which comprises the following steps of: firstly, acquiring. Cif files of original metal organic frameworks (MOFs) from a CSD database, carrying out bonding on the. Cif files by using an open-source xyz2mol program, outputting corresponding bonding information, and then deleting the metal atoms of the MOFs structure; calculating the RSD value of the non-metal framework according to the bonding information of all non-metal atoms, and calculating the total charge of the non-metal framework according to the relation between the RSD and the TSD of the elements; reversely deducing the oxidation state of the metal atoms by using the fact that the complete MOFs present charge balance; and finally, comparing the metal oxidation state numerical value with a numerical value provided by a CSD database, and evaluating the accuracy and feasibility of the method. According to the method, the metal center oxidation state value in the MOFs can be efficiently calculated, so that whether the MOFs meet the requirement of skeleton neutrality or not is judged.

The present invention relates to a method of smelting a metalliferous feed material. More particularly, the present invention relates to a method of smelting composite agglomerates comprising a metalliferous feed material, a reducing agent and a fluxing agent using a hot oxidising gas. According to a first aspect of the invention, there is provided a method of carbothermic smelting of a metalliferous feed material using an oxidising gas, comprising the steps of: (i) feeding composite agglomerates into a reactor to create a packed bed within the reactor; wherein the agglomerates comprise a metalliferous feed material, a reducing agent and a fluxing agent; (ii) heating and smelting the agglomerates using a hot oxidising gas, wherein the hot oxidising gas enters the reactor and passes through the packed bed to form a molten material comprising an intermediate slag component and a partially reduced metalliferous component; (iii) introducing the molten material into an electric slag cleaning furnace; (iv) adding additional reducing agent to the molten material in the electric slag cleaning furnace to form a liquid metal product, a liquid slag product and a CO-containing gas; and (v) combusting the CO-containing gas with preheated air to form a hot oxidising gas enriched in oxygen which then enters the reactor in step (ii); wherein the temperature of the hot oxidising gas entering the reactor is controlled to be above 1400°C, and wherein the oxygen content of the hot oxidising gas is controlled to be between 0% and 20%.

The utility model relates to a double-station semi-solid metal forming machine which comprises a first mold device, a second mold device and a third mold device, the first spiral feeding device is connected with the first mold device and used for conveying the metal raw materials; the first heating device is arranged on the first spiral feeding device and used for heating the metal raw materials into a semi-solid state; the second mold device is used for metal forming; the second spiral feeding device is connected with the second die device and used for conveying the metal raw materials; the second heating device is arranged on the second spiral feeding device and is used for heating the metal raw material into a semi-solid state; the first mold device and the second mold device are arranged at the two ends of the rack correspondingly, and the first spiral feeding device and the second spiral feeding device are both installed on the rack and arranged in a staggered mode. According to the double-station semi-solid metal forming machine, two stations are obtained through staggered arrangement, and the double-station semi-solid metal forming machine is compact in structure, small in occupied area, high in production efficiency, low in production cost, low in forming temperature, high in production safety and low in energy consumption.

Disclosed is a metal-organic framework which has at least one metal atom selected from the group consisting of Zr, Zn, Al, and Mg, and an organic ligand that has at least one group selected from the group consisting of a carboxy group and a carboxylate group, and which includes a partial defect of the organic ligand.

A method of introducing a metalliferous feed in an ironmaking process, the method including the steps of, pre-drying an iron containing sludge by drying means to an amount of 15 to 30% (w / w) moisture, mixing the pre-dried iron containing sludge with a binder material to obtain a granulate, having a particle size of less than 4 millimeter and drying the granulate to a maximum of 3% (w / w) moisture, thereby forming the metalliferous feed, wherein the metalliferous feed is subsequently injected into a cyclone part of a metallurgical vessel.

The resist composition comprises a metal complex containing a metal, typically zinc and a specific ligand exhibits a high sensitivity, high resolution and improved LWR when processed by photolithography. The composition is stable during storage and easy to handle. The resist composition comprises a metal complex containing a metal atom and a ligand having the formula (1a), (1b) or (1c). R1, R2, R3, R4, R5, R6 and R7 are each independently hydrogen, a C2-C20 hydrocarbylcarbonyl group which may contain a heteroatom, or C1-C20 hydrocarbyl group which may contain a heteroatom, *1 and *2 each designate a point of attachment to the metal atom.

Metal(s) (including various alloys, such as INCONEL® superalloys) are characterized by having carbon disposed within the metal lattice structure thereof. The carbon is primarily, or entirely, present at interstitial sites of the metal lattice, and may be present in amounts ranging from about 1.5 wt % to about 90 wt %. Carbon may be present in the form of graphene, which may be characterized as one or more coherent, planar layers of graphene. The carbon, moreover, forms non-polar covalent bonds with both metal atoms of the lattice and other carbon atoms present in the lattice. This facilitates substantially homogeneous dispersal of the carbon throughout the resultant material, conveying unique and advantageous properties such as strength-to-weight ratio, density, mechanical toughness, sheer strength, flex strength, hardness, anti-corrosiveness, electrical and / or thermal conductivity, etc. as described herein. In some approaches, the composition of matter may be powderized, or the powder may be pelletized.

The disclosure relates to a method for assigning metal oxidation states in in silico chemical compounds comprising: assigning to each non-metal atom, a respective formal charge; determining binding sites; determining binding domains; for each respective binding domain, computing the sum of the respective formal charge assigned to each respective atom of the respective binding domain; equally splitting the sum respective to each binding domain among each binding site of the binding domain; for each respective metal atom having a bond with at least one binding site, calculating a respective oxidation value being equal to the sum of, for each of the at least one binding site, the opposite of the division of the respective transitory formal charge by a number of respective metal atoms having a bond with the binding site; computing a first oxidation state for each respective metal atom computed based on the respective oxidation value.

A metal-organic framework material separation membrane and a preparation method for the metal-organic framework material separation membrane are provided. The metal-organic framework material separation membrane has a base membrane and a metal-organic framework material functional layer. The metal-organic framework material functional layer comprises has an inter-embedded polyhedron structure. The preparation metal-organic framework material separation membrane includes the steps of: (1) preparing a solution containing a first organic solvent, an organic ligand, a metal compound, and an auxiliary agent; (2) subjecting a base membrane to a pretreatment, involving introducing, on the surface of the base membrane, metal atoms from the metal compound of step (1); and (3) mixing the pretreated base membrane of step (2) with the solution of step (1) to obtain a first mixture, and then heating the first mixture for reaction, so as to prepare a metal-organic framework material separation membrane.

The invention relates to the technical field of material science and engineering, and discloses a monatomic material and a preparation method thereof, which can effectively prevent metal atom aggregation and realize high-universality and high-load monatomic preparation. The method comprises the following steps: dissolving a metal precursor in an acidic aqueous solution, and placing a carrier material in the acidic aqueous solution to form a reaction system containing the solution and the carrier material; freezing the reaction system to a solid state; performing electrochemical reduction on the reaction system in a solid frozen state, so that metal ions from the metal precursor are reduced and loaded on the carrier material; and unfreezing and washing the carrier material subjected to electrochemical reduction to obtain the monatomic material.

The application relates to the technical field of detection of low-temperature stretching of metal materials, and discloses a detection experiment device for low-temperature stretching of metal materials at minus 196 DEG C, which comprises a detection device main body, an observation protection door arranged on the surface of the detection device main body, a control panel arranged on the surface of the detection device main body, a support fixedly connected to the inner wall of the detection device main body, a support frame fixedly connected to the surface of the support, a clamping protection device arranged on the surface of the support, and a sealing leakage-proof device arranged on the surface of the support. When the machine performs a low-temperature stretching test on metal raw materials, the motor is started to drive the threaded rod to rotate, the threaded rod drives the moving plate to move when rotating, the moving plate drives the clamping block to move when moving, so that the clamping block clamps and fixes the condensing cylinder when the machine performs a low-temperature stretching test on the metal raw materials, and the detection result is not affected by the shaking of the condensing cylinder when the machine performs a test on the metal raw materials.

The utility model discloses a metal electroplating material taking clamp which comprises a fixing column, a second bearing is welded to one end of the fixing column, a fixing frame is connected to the bottom of the second bearing, a second clamping plate is installed on the surface of the fixing frame, a fixing rod is fixedly connected into the second clamping plate, and a spring is connected to the surface of the fixing rod in a sleeved mode. The first clamping plate is sleeved with the second clamping plate. According to the clamping clamp for metal electroplating material taking, a second bearing is welded to one end of the fixing column, meanwhile, a fixing frame is connected to the bottom of the second bearing, and a second clamping plate is installed on the surface of the fixing frame, then metal raw materials can be electroplated, after electroplating is completed, a pressing ring can be pressed, and a soft plate is pressed through the pressing ring; and then the first clamping plate is uniformly pulled by the soft plate, so that the first clamping plate is separated from the metal raw materials, at the moment, all the metal raw materials clamped on the device can be taken down, and the device is very convenient to use.

The utility model provides a metal raw material crushing device, and relates to the technical field of metal raw materials. The metal raw material crushing device comprises a box body, a crushing mechanism is arranged in the box body, a collecting and screening mechanism used for collecting and screening crushed metal raw materials is arranged in the box body, the crushing mechanism comprises a connecting block and a rotating shaft, and the rotating shaft is rotationally connected to one side of the box body; the connecting block penetrates through one side of the box body and is rotationally connected with one side of the box body, and the connecting block is slidably connected to the surface of the inner wall of the rotating shaft. According to the metal raw material crushing device, by arranging the crushing mechanism, the problems that crushing rollers of previous crushing equipment are difficult to replace, the crushing rollers are prone to being abraded after the device is used for a long time, the crushing particle size is not uniform, and then the crushing efficiency is affected are solved, and the crushing rollers can be simply and conveniently replaced; the maintenance cost is reduced; and the crushing efficiency is prevented from being influenced by the abrasion of the crushing roller.

The application discloses a kind of covalent organic framework materials for regulating metal coordination distance and its preparation method and the application of activated PMS degradation pollutants, on the basis of original metal porphyrin, by the coordination connection metal atom in the position of intermediate connecting group, not only increase the load of metal, also greatly shorten the distance between two adjacent metal atoms, enhance electron transfer efficiency, improve the catalytic activity of framework material;Make the framework material show excellent catalytic activity.Covalent organic framework material is prepared by solvothermal reaction, continue to react with metal precursor can be loaded on metal, the preparation method is simple, does not need complex reaction process and harsh reaction condition, can be prepared in large scale.

The application discloses a kind of preparation and application of metal porphyrin-based porous polyionic liquid.The general formula of the metal porphyrin-based porous polyionic liquid is: [M-R1-(R)4] n ;M is metal atom;R1 is porphyrin compound;R is selected from one of halogen-containing compounds.The metal porphyrin-based porous polyionic liquid is constructed by metal porphyrin and halogen-containing compound as organic unit, so that the metal porphyrin-based porous polyionic liquid has three-dimensional structure, the porous polyionic liquid has good chemical stability and controllable pore size, has high specific surface area, improves catalytic performance, realizes efficient and high-selectivity catalytic reaction.The metal porphyrin-based porous polyionic liquid prepared by the application is especially suitable for catalyzing the cycloaddition reaction of carbon dioxide and epoxide, has high selectivity and strong adsorption force for carbon dioxide, and can efficiently and high-selectively catalyze to generate cyclic carbonate.

This application discloses a method and system for metal atomic layer deposition. The method includes: with the control valve at the outlet of the reaction chamber closed, supplying a metal source to the reaction chamber so that the metal source is adsorbed onto the surface of a substrate in the reaction chamber; controlling the control valve to be in an open state in response to the continuous supply time of the metal source to the reaction chamber being greater than or equal to a first supply time threshold; supplying purge gas to the reaction chamber in this state; supplying reactants to the reaction chamber to form a metal film on the substrate; and supplying purge gas to the reaction chamber. Thus, by keeping the control valve closed during the supply of the metal source to the reaction chamber, the metal source can be filled into the reaction chamber, increasing the residence time of the metal source in the reaction chamber, allowing the metal source to be uniformly adsorbed onto the substrate surface. Then, reactants are supplied to the reaction chamber, allowing the reactants to react with the metal source adsorbed on the substrate surface, thereby adsorbing a uniform thin film onto the substrate.

The invention provides a metal organic complex and application thereof. The metal organic complex comprises a metal atom M and a first ligand La coordinated with the metal atom M. The first ligand La has a structure as shown in any one of a formula I-1, a formula I-2 and a formula I-3. When the metal organic complex is applied to the organic electroluminescent device, the prepared electroluminescent device shows the properties of high efficiency, wide color gamut, dark red light and the like.

The utility model discloses a punching machine based on metal preprocessing, which comprises a processing base and a punching mechanism, the bottom of the punching mechanism is fixedly connected with the top of the processing base, the punching mechanism comprises a processing plate, the top of the processing plate is fixedly connected with a processing cylinder, and the top of the processing cylinder is fixedly connected with a metal plate. According to the stamping device, the machining air cylinder is started, the machining air cylinder starts to work and pushes the metal plate to move downwards, then the stamping plate moves downwards to conduct stamping machining on metal raw materials placed on the die plate, when the metal plate moves downwards, the fixing block drives the control plate to move downwards, and the control plate moves downwards in the spraying pipe; when the water through hole in the control plate is communicated with the inner cavity of the spraying pipe, cooling liquid in the water tank enters the spraying pipe through the hollow pipe and the connecting pipe and is sprayed out of the spraying nozzle to cool a metal raw material and a die plate which are subjected to stamping machining, and the machining quality of the metal part stamping device is improved.

The application discloses a method for efficiently degrading and recycling waste epoxy resin and a composite material thereof by using a metal-functionalized ionic liquid, and belongs to the technical field of waste epoxy resin degradation and recycling. The method is characterized by mixing waste epoxy resin material or waste epoxy resin composite material with a catalytic degradation solution at a mass ratio of 1:1-10, heating and refluxing under nitrogen protection at 60-120 DEG C, and reacting for 1-36 hours until the resin disappears completely and degradation is completed. The waste epoxy resin material contains ester functional groups in its structure, including ester groups at crosslinking points or ester groups in the bulk. In the application, the central metal atom of the metal-functionalized ionic liquid is coordinated with atoms in the waste epoxy resin and the degradation solution, so that the degradation solution can be enriched on the surface of the resin, greatly accelerating the erosion of the degradation solution on the surface of the epoxy resin, making the degradation solution more easily enter the resin system, and thus more quickly collapsing the crosslinked network, and greatly accelerating the degradation efficiency.

The metal organic framework of the present disclosure includes: at least one metal atom selected from the group consisting of Zr, Zn, Al, and Mg; and an organic ligand having at least one group selected from the group consisting of a carboxy group and a carboxylate group. The content of nitrogen atoms is less than 5 mass % with respect to the total mass of the metal organic framework.

The utility model discloses a raw material leveling device for metal product manufacturing, which belongs to the technical field of metal product processing and comprises a supporting seat, a fixed seat and a driving compression roller, the fixed seat and the driving compression roller are mounted on the supporting seat, through grooves are equidistantly formed in the fixed seat, and adjusting mechanisms are arranged in the through grooves. A driven pressing roller used in cooperation with the driving pressing roller is installed on the adjusting mechanism, the driving pressing roller and the driven pressing roller are used in cooperation, the adjustable adjusting mechanism is combined, the distance between the pressing rollers can be accurately controlled, metal raw materials with different thicknesses can be adapted, the leveling precision is ensured, and the application range of the leveling device is widened. The leveling device can meet the machining requirements of various metal products, continuous conveying of raw materials is achieved through the automatic conveying mechanism, manual intervention is reduced, the production efficiency is improved, a grinding machine and an infrared detector in the leveling mechanism are assisted, the leveling quality is further improved, and it is guaranteed that the metal surface is smooth and flat.

The invention belongs to the technical field of nano materials and catalysis, and particularly relates to montmorillonite-mediated metal monatomic nano enzyme as well as a preparation method and application thereof. The preparation method comprises the steps of precursor synthesis, composite material preparation and acid etching, more active sites are exposed through an acid etching strategy, and the catalytic performance is remarkably improved; the catalyst shows excellent performance in hydroquinone detection and methylene blue degradation, and is low in detection limit and high in degradation efficiency. According to the invention, the montmorillonite is used for constructing the atomic-scale dispersed metal atom nano-enzyme for the first time, so that efficient anchoring and dispersion of metal atoms are realized; the prepared composite material has double-enzyme activity, not only can detect phenolic pollutants, but also can degrade organic dyes, has catalytic efficiency superior to that of most traditional nano-enzymes and natural enzymes, and can keep activity under acid, alkali and high temperature conditions. The preparation method is simple, the preparation process is green, and the material is suitable for actual water bodies and biological samples, has detection and degradation functions, and is suitable for environmental monitoring and treatment.