35 results about "Metal chloride" patented technology

This invention provides a liquid chlorine storage material for separating and storing chlorine from chlorine-containing gases. The material is a mixed ionic liquid composed of at least one organic salt and one additive, wherein the organic salt is selected from one or more quaternary ammonium salts, and the additive is a metal chloride. The chlorine storage material is liquid at 25°C and a pressure of 1000±100 hPa. This invention provides a storage medium with a high chlorine storage rate, high chlorine storage density, simple release conditions, and high chlorine purity. This storage medium effectively reduces the saturated vapor pressure of chlorine at room temperature, improving the safety of chlorine transportation and use.

A three-compartment electrowinning cell comprises a cathode in contact with a catholyte comprising a metal chloride dissolved in aqueous hydrochloric acid, optionally containing an additive, such as DMSO, and an anode in contact with an aqueous anolyte. The catholyte and anolyte are in separate compartments separated from each other by a middle compartment between an anion exchange membrane (AEM) on the catholyte side, and a cation exchange membrane (CEM) on the anolyte side. The middle compartment comprises an aqueous solution of a salt. The salt solution provides a compartment to maintain charge neutrality and provides a clean solution for subsequent electrodialysis, which closes the process loop. The electrowinning products are a metal (e.g., a critical metal such as Zn or a non-critical metal such as iron), which deposits on the cathode, and oxygen gas which is generated at the anode.

According to an aspect of the present invention, provided is a method for preparing an inorganic powder. The method for preparing an inorganic powder may comprise the steps of: (a) introducing a solid metal chloride-metal oxide composite into a chemical vapor synthesis reactor; (b) selectively vaporizing the metal chloride in the metal chloride-metal oxide composite introduced into the reactor, and collecting the unvaporized solid metal oxide; and (c) reacting the vaporized metal chloride with a reaction gas to produce an inorganic powder.

The application discloses a high-strength solid-state battery packaging nylon film, which comprises a nylon layer, an aluminum foil layer and a heat-sealing layer, the nylon layer is prepared by a two-way stretching process after polyamide 66 and metal chloride are solution-blended, the metal chloride is a compound of calcium chloride and lanthanum chloride; the surface of the nylon layer is subjected to fluorination modification treatment, the fluorination modification treatment is grafting trifluoropropyltrimethoxysilane on the surface of the nylon layer; the heat-sealing layer is a polypropylene film, which is prepared by a flow casting process after a polypropylene matrix and a composite additive are melt-blended, and the composite additive is composed of an antioxidant, a stabilizer and an organic silicon polymer anti-blocking agent; and the nylon film prepared by the application has high strength and good comprehensive performance.

Provided are: an ion exchange membrane which has small variation in current efficiency, and with which it is possible to produce an aqueous alkali hydroxide solution that has excellent caustic quality; an alkali chloride electrolysis apparatus which comprises the ion exchange membrane; and a method for producing an alkali hydroxide.　The ion exchange membrane comprises a layer (S) that contains a fluorine-containing polymer having a sulfonic acid-type functional group and a layer (C) that contains a fluorine-containing polymer having a carboxylic acid-type functional group, wherein: a woven fabric is disposed in the layer S; the woven fabric is configured from yarns A that extend in one direction and yarns B that extend in a direction substantially orthogonal to the yarns A; and the amount of displacement of the ion exchange membrane is 10-20 mm when a pulling operation is performed for 10 minutes, the pulling operation repeatedly performing an operation 1 for pulling the ion exchange membrane for 1 second at a pulling load of 10 N and an operation 2 for pulling the ion exchange membrane for 0.1 second at a pulling load of 0.1 N in a direction that is at an angle of 45 degrees to the direction in which the yarns A extend in the plane of the ion exchange membrane.

i) A step of reacting sewage sludge incineration ash containing at least one iron compound and an aluminum compound with at least one alkali metal chloride and / or at least one alkaline earth metal chloride at a temperature of 200°C to 1100°C in an inert gas atmosphere, and ii) Step of extracting and isolating the iron chloride and aluminum chloride formed in the exhaust gas stream. A process for producing iron chloride and aluminum chloride, characterized by including the following:

The application of a long-chain nitrogen-containing organic cation salt compound in the aspect of being used as a platinum group metal precipitant and a platinum group metal recovery method belong to the technical field of recycling of secondary resources of noble metals.The platinum group metal precipitant is mixed with an aqueous solution containing platinum group metal (palladium, platinum, rhodium, iridium) chloride complex ions, and the electrostatic effect of the long-chain nitrogen-containing organic cation salt in the precipitant on the platinum group metal chloride complex ions and the hydrophobic effect of the alkyl chain are utilized to precipitate the platinum group metal ions, so that the corresponding platinum group metal is obtained through solid-liquid separation and calcination.The present application provides an effective recovery method, which significantly improves the recycling efficiency of noble metal resources.The present application solves the technical problems of high residual concentration of tail liquid metal and large amount of precipitant in the previous precipitation recovery process, has the advantages of high recovery efficiency of noble metal, simplified process flow, environmental friendliness, improved resource utilization rate and the like, and provides an innovative solution for efficient recycling of platinum group metal resources.

The application provides a rare earth metal platinum-based catalyst and a preparation method and application thereof, and belongs to the technical field of catalyst materials.The catalyst is prepared by using pretreated coconut shell activated carbon as a carrier, platinum as an active component and rare earth metal chloride as an additive through an impregnation method; in the catalyst, Pt is highly dispersed on the surface of the carrier and in the pores in the form of metal elementary substance nanoparticles with an average particle size of 1-3 nm; and the rare earth metal effectively inhibits the sintering and carbon deposition of Pt particles through electronic regulation and geometric isolation, thereby significantly improving the catalytic activity and long-term operation stability of the catalyst in the ethyne hydrochlorination reaction.The preparation method of the catalyst is simple in process and good in repeatability, and the prepared catalyst exhibits excellent catalytic performance at a low Pt loading, and has industrial application potential.

This invention discloses a method for using metal oxyacid anions to inhibit chlorine corrosion of metals and its application. Specifically, it discloses a novel use of metal oxyacid anions to alleviate the chemical or electrochemical corrosion of metals by chlorine-containing solutions. In this invention, metal oxyacid anions form polymetallic oxyacid anion clusters during electrolytic or electrochemical corrosion, revealing that these clusters possess specific chemical adsorption properties on the surface of metal electrodes or metal substrates, and exhibit strong resistance to chlorine corrosion. ‑ The electrostatic repulsion and steric hindrance effects of the Cl- at the interface can reduce the interfacial Cl- ‑ The concentration can thus alleviate chlorine corrosion of metals and extend the service life of metal materials in chlorine-containing environments.

The application provides a liquid molten salt electrolyte, which comprises a quaternary phosphonium salt and a metal chloride, the substituent group on the quaternary phosphonium salt is an alkyl group with 1-14 main chain carbon atoms, and the metal chloride is anhydrous aluminum chloride; the liquid molten salt electrolyte is a light yellow liquid at room temperature. The optimal molar ratio of the quaternary phosphonium salt and the anhydrous aluminum chloride in the electrolyte is 1:1.5, and the quaternary phosphonium salt is preferably tetrabutylphosphonium chloride. The molten salt battery made of the electrolyte provided by the application has a minimum working temperature of 30 DEG C, a high operating potential, an energy density, a cycle stability and a low overall battery cost.

A method is described for preparing organochorosilane CS by reacting at least one silicone S with a metal chloride or metalloid CM in the presence of at least one metal salt catalyst SM, wherein the metal chloride or metalloid CM is different from the metal salt SM.

The application provides a method for improving the preparation of a porous metal coating in chemical vapor deposition and a composite material. The method and device can solve the problem of inaccurate flow metering of chlorides as reaction raw materials in existing chemical vapor deposition. The method comprises the following steps: installing a chlorine special flow meter at the front end of a chlorine inlet pipe; adding a block metal into a reaction dish and sealing; introducing inert protective gas into the reaction dish with the block metal to perform water and oxygen removal by heating; heating to a specified temperature, closing the inert protective gas, and opening the chlorine to perform the reaction. The application controls the flow of reaction gas chlorine accurately, so that the quantitative metal chloride is generated, the surface of the substrate is provided with a coating with uniform deposition and high strength under the action of reducing gas, the coating almost does not contain any impurities, and the substrate after deposition can be used in the semiconductor, medical and other industries. The method has low cost, good product stability, and is easy to use in large scale.

A substrate processing method and a substrate processing apparatus are provided. A technology capable of efficiently performing atomic layer etching on a metal film containing ruthenium is provided. A substrate processing method of one embodiment of the present disclosure includes a process of processing a surface of a metal film containing ruthenium with a first treatment liquid to form a metal chloride on the surface of the metal film, and a process of removing the metal chloride with a second treatment liquid.

The present application relates to the technical field of metal materials, in particular to a titanium-aluminum alloy prepared by one-step method of magnesium-aluminum reduction of tetrachloride and a preparation method thereof.The preparation method comprises the following steps: preparing a molten magnesium-aluminum melt in an argon environment; under stable pressure and low-frequency electromagnetic stirring, adding metal chlorides into the magnesium-aluminum melt by controlling the reaction temperature and the feeding rate, preparing a titanium-aluminum alloy sponge mixture through a thermal reduction reaction, and stopping feeding; the metal chlorides comprise titanium tetrachloride and at least one alloying element chloride; removing the unreacted reducing agent magnesium and byproduct magnesium chloride from the titanium-aluminum alloy sponge mixture through vacuum distillation, and obtaining a pure multi-element titanium-aluminum alloy after argon filling and natural cooling.The present application not only solves the problems of poor uniformity of alloying elements and forced complication of the process flow, but also achieves micron-level uniform distribution of elements in terms of composition control.

The application provides an acetylene hydrochlorination reaction liquid copper-based catalyst and a preparation method and application thereof, and belongs to the field of chemical industry catalysis technology.The application obtains an acetylene hydrochlorination reaction liquid copper-based catalyst by uniformly mixing cuprous chloride, concentrated hydrochloric acid and a metal chloride.The copper-based catalyst exists in the form of a liquid complex in a reactor, has the advantages of high activity and good stability;and the copper-based catalyst belongs to a fluid catalyst, has good intermolecular heat transfer performance, is easy to replace and regenerate, and has no pressure drop problem between bed layers, uniform heat transfer and no local temperature too high phenomenon.The copper-based catalyst is used for catalyzing acetylene hydrochlorination reaction to prepare vinyl chloride, the reaction is carried out on the surface and / or inside of the liquid complex, the conversion rate of acetylene is greater than 98%, the by-product (mainly dichloroethane) is less than 0.5%, and the copper-based catalyst has a good application prospect.

The application discloses a preparation method of a copper-doped porous nanosilicon negative electrode material and belongs to the technical field of lithium ion battery negative electrode materials. The copper-doped porous nanosilicon material is prepared by adopting montmorillonite containing copper ions as raw material, adopting anhydrous metal chloride as a molten salt medium, and adopting magnesium as a reducing agent, and the material can be used for a silicon negative electrode material. The nanometer porous characteristic of the silicon negative electrode material is favorable for relieving volume expansion in the process of lithium extraction of silicon and improving the lithium storage capacity of the silicon negative electrode, and the doping of copper can improve the silicon ion conductivity and further relieve the volume expansion effect in the process of lithium insertion of silicon. Through the synergistic effect of the nanometer porosity and the copper doping, the silicon negative electrode material has good lithium storage stability and excellent lithium storage capacity. The montmorillonite is low in price, the molten salt assisted magnesium hot reduction process is low in energy consumption and is not limited by the size of a reaction container, so that the preparation method has the advantages of simple process and great potential for large-scale production.

This invention discloses an injectable antibacterial cellulose / rare earth-based hydrogel, its preparation method, and its application. The preparation method includes: S1, dissolving sodium carboxymethyl cellulose in a 2-morpholine ethanesulfonic acid solution, adding 1-ethyl-(3-dimethylaminopropyl)carbodiimide and N-hydroxysuccinimide for a reaction in the dark, then adding L-histidine for a reaction in the dark at room temperature, and purifying the product after the reaction to obtain histidine-grafted carboxymethyl cellulose; S2, dissolving the product obtained in step S1, adding rare earth metal chloride or nitrate solutions dropwise to the solution and stirring, then allowing it to stand to obtain a homogeneous injectable antibacterial cellulose / rare earth-based hydrogel. The hydrogel prepared by this invention has excellent injectability, self-healing ability, shape adaptability, and antibacterial properties. It can achieve in-situ filling and sealing in irregular wounds, and promote tissue repair by inhibiting bacterial proliferation, alleviating inflammatory responses, and regulating the wound microenvironment.

The application relates to a method for preparing siloxane by a semi-continuous homogeneous phase reaction and application, which utilizes the principle of solubilization of LiCl in THF solution to MgCl 2、 ZnCl2, regulates a reaction solvent system, and enables the whole reaction process to be carried out under the condition of a homogeneous phase solution. The method takes chlorosilane as raw material, carries out a condensation reaction in an organic solvent in the presence of metal oxide, and the organic solvent is a co-blended solvent of a weak polarity or non-polarity solvent and tetrahydrofuran. The raw material source is abundant, the method for preparing siloxane by a homogeneous phase reaction of organic chlorosilane and metal oxide is beneficial to realization of a semi-continuous process, materials are kept in a homogeneous phase process in the reaction, thereby the filtration of metal chloride salt is reduced, the reaction process period is shortened, the reaction temperature is not more than 60 DEG C, the condition is mild, the product siloxane and inorganic salt by-products such as zinc chloride and magnesium chloride are separated by distillation respectively, and the separation is fast and simple; after solvent refining, the two solvents can be reused.

DEPCT69 The process of producing iron chloride and aluminum chloride has unique characteristics: The process includes: i) Reaction of wastewater sludge ash containing iron compounds and other compounds. At least one type of aluminum with at least one type of alkali metal chloride and / or chloride. Of at least one alkaline earth metal at a temperature between 200°C and 1100°C. In an atmosphere of inert gases and... ii) Extraction and separation of iron chloride and aluminum chloride generated in the stream. Exhaust gas;

This invention discloses a high-voltage resistant solid-state lithium battery chloride cathode material, its preparation and application. The cathode material is prepared using metal chloride and lithium hydroxide as raw materials and a ball milling method. x (M1) y (M2) z O x Cl cathode materials retain the characteristics of high-performance halide cathode materials, enabling rapid ion conduction, eliminating the need for supporting electrolytes, and significantly improving battery energy density. In addition, by adjusting the oxygen content in the halide cathode material, the high-voltage resistance of the halide cathode material is achieved, avoiding battery pack safety issues caused by overcharging.

The invention relates to a hydrometallurgical process for the treatment and recycling of spent fuel salt from a molten chloride nuclear reactor, comprising at least the steps of: a) precipitation of chloride ions present in the spent fuel salt by: - ​​dissolving the spent fuel salt in an aqueous solution of nitric acid comprising a nitrate of a metal M; or - dissolving the spent fuel salt in an aqueous solution of nitric acid and adding the nitrate of metal M to the resulting solution; thereby obtaining a two-phase medium consisting of a precipitate of chloride of metal M and an aqueous nitric phase comprising the metals of the spent fuel salt in the form of nitrates; b) separation of the precipitate of chloride of metal M from the aqueous nitric phase; c) dissociation of the precipitate of chloride of metal M obtained in step b) into chlorine and metal M, with recovery of the chlorine;d) selective recovery of at least one of the actinides present in the aqueous nitric phase obtained in step b) by implementing at least one liquid-liquid extraction-deextraction process; ete) use of the dichlorine recovered in step c) and of said at least one actinide recovered in step d) to produce a new fuel salt for a molten chloride nuclear reactor.;

This invention discloses a method for preparing a metal complex, the general structural formula of which is CpM(NR1R2)3, wherein R1 and R2 are Me or Et, and M is Zr or Hf. The preparation method includes the following steps: S1: Magnesium thiocene is added to a tetrahydrofuran solvent and stirred to form a magnesium thiocene tetrahydrofuran solution for later use; S2: Metal chloride, N,N-diisopropylethylamine and tetrahydrofuran solvent are added to a reaction vessel, the temperature is lowered to -10~-5℃, an amine compound is slowly introduced, and after the introduction is completed, the mixture is stirred for 2 hours, and then slowly raised to 30~40℃ and stirred for 16 hours, and the mixture is filtered to obtain a filtrate; S3: The temperature of the filtrate is controlled at 20~30℃, the magnesium thiocene tetrahydrofuran solution is added to it, the temperature is slowly raised to 50~60℃ and stirred for 12 hours, after the stirring is completed, the mixture is filtered to obtain a filtrate, and then the target product CpM(NR1R2)3 is obtained by distillation and rectification.

The application discloses a recycling method of waste lithium cobalt oxide positive materials and belongs to the technical field of lithium ion battery recycling. The application provides a method for recycling metal elements in waste lithium cobalt oxide positive materials based on metal chloride assisted hydrothermal-solid phase reaction, and the overall process is green and environmentally friendly, the parameter condition is moderate, and the separation efficiency is high, so that efficient recycling of lithium and cobalt resources can be realized. In the method, the leaching rates of Li and Co ions reach the maximum of 95.1% and 94.1% respectively.

This invention relates to a highly selective acid-resistant nanofiltration membrane, its preparation method, and its application, belonging to the field of membrane separation technology. The preparation method of the highly selective acid-resistant nanofiltration membrane includes the following steps: (1) immersing a polysulfone membrane in an aqueous solution containing a strong oxidant and metal chloride; (2) immersing the membrane treated in step (1) in a hexane solution containing pyrrole molecules and allowing it to stand; (3) spraying a mixed ethanol solution of phenol and formaldehyde onto the membrane treated in step (2); (4) placing the membrane treated in step (3) in a hot sodium hydroxide solution containing a surfactant for post-treatment to obtain the highly selective acid-resistant nanofiltration membrane. This invention features a simple process, readily available raw materials, and is suitable for industrial production; simultaneously, the highly selective acid-resistant nanofiltration membrane, while possessing strong acid resistance, exhibits high selectivity for both divalent and monovalent ions, making it suitable for the desalination treatment of acidic industrial wastewater.

The application discloses a preparation method of a molybdenum disulfide / modified carboxymethyl cellulose hydrogel bead adsorbent for tetracycline hydrochloride, and relates to the technical field of functional materials and the field of environment; the method comprises the following steps: step 1, a sodium molybdate aqueous solution is prepared by using sodium molybdate dihydrate, thiourea and metal chlorides are added into the sodium molybdate aqueous solution, the mixed solution is completely reacted at 100-180 DEG C, the product is cooled to room temperature, black precipitates are collected by centrifugation, and the black precipitates are washed and dried to obtain fine powder of sulfided metal-doped molybdenum disulfide, step 2, a carboxymethyl cellulose solution with a mass concentration of 0.4-3% is prepared, 10-50% of tannic acid by mass of the carboxymethyl cellulose is added into the carboxymethyl cellulose solution and stirred at 50-90 DEG C to obtain a tannic acid-modified carboxymethyl cellulose mixed solution, and step 3, the sulfided metal-doped molybdenum disulfide powder is added into the tannic acid-modified carboxymethyl cellulose mixed solution and stirred at 50-90 DEG C to obtain a composite slurry, and the composite slurry is extruded into an ionic bath containing metal chlorides by using an ionic crosslinking method to prepare the molybdenum disulfide / modified carboxymethyl cellulose hydrogel bead adsorbent.

This invention discloses a halide high-entropy solid electrolyte, its preparation method, and its application in all-solid-state batteries. The electrolyte has the general formula Li. 3‑x MCl6, wherein M includes at least five elements selected from the In, Zr, Ta, Y, Hf, and La series. The electrolyte is defined by the general formula Li. 3‑x MCl6 is weighed to obtain a metal chloride, and the resulting mixture is ball-milled. After ball milling, a halide high-entropy solid electrolyte is obtained. This invention achieves "direct synthesis of crystalline phase by ball milling" through optimized electrolyte preparation process, i.e., a "one-step" mechanical ball milling method. The preparation method of this invention can effectively avoid the problems of elemental segregation and impurity phase formation caused by heat treatment, thereby obtaining higher ionic conductivity and a purer phase. While reducing energy consumption and simplifying the process, it also improves the overall performance of the electrolyte.

This invention provides a biomass phosphorus-nitrogen hybrid flame retardant, its preparation method, and its application, belonging to the field of functional modification and flame retardant technology of polymer materials. The biomass phosphorus-nitrogen hybrid flame retardant has a flower-like structure and excellent flame retardancy. It is synthesized from different metal chloride salts (ferric chloride, copper chloride, zinc chloride, etc.), guanosine phosphate (5'-triguanosine sodium phosphate, 5'-guanosine triphosphate, 5'-guanosine disodium hydrate), and phosphonates (dimethyl hydroxymethylphosphonate, dimethyl methylphosphonate, dimethyl vinylphosphonate) as raw materials using co-precipitation and adsorption methods. The flame-retardant epoxy resin is formed by adding the biomass phosphorus-nitrogen hybrid flame retardant to an epoxy resin matrix and then curing it. This invention features a simple process, controllable conditions, and the resulting flame retardant exhibits high thermal stability and flame retardant properties. It also shows good compatibility with epoxy resin, significantly improving the flame retardant effect of epoxy resin and possessing broad industrial application prospects.

The invention relates to the field of environment-friendly and chemical materials, and discloses an adsorbent and a preparation method thereof. The preparation method of the adsorbent comprises the following steps: 1) molding a mixture containing FCC catalyst glue residues, an aluminum oxide source, an optional first metal chloride and a molding aid and a peptizing agent solution; (2) carrying out first roasting on the molded product obtained in the step (1) by taking the total weight of the FCC catalyst glue residue dry basis, the aluminum oxide source, the first metal chloride and the molding aid as a reference, the content of the FCC catalyst glue residue dry basis is 35-80wt%, the content of the aluminum oxide source is 15-60wt%, the content of the first metal chloride is 0-20wt%, and the content of the molding aid is 0-20wt%; and the content of the forming auxiliary agent is 1-10 wt%. The preparation method of the adsorbent provided by the invention is simple in preparation process and low in production cost, and the prepared hydrogen fluoride has excellent adsorption performance and is difficult to adhere and cake after being used.

The invention provides a method for selectively recycling precious metal in a waste chip by utilizing a persulfate-metal chloride system, and belongs to the technical field of waste electronic resource recycling. The method provided by the invention comprises the following steps: mixing the waste chips with a leaching solution, leaching under a heating condition, then carrying out solid-liquid separation, and collecting a solution containing Pd (II) and Au (III); introducing reducing gas into the solution containing Pd (II) and Au (III) to carry out reduction reaction, then carrying out solid-liquid separation, and collecting solid product gold precipitate and the solution containing Pd (II); adding iron powder into the solution containing Pd (II) to carry out replacement reaction, and then carrying out solid-liquid separation to obtain palladium precipitate; the solutes in the leachate are persulfate and metal chloride. According to the method, ammonium persulfate is catalyzed by metal chloride to generate free radicals, and efficient and selective leaching and separation of the precious metal are achieved in cooperation with the coordination effect of chloride ions.

The application discloses a method and device for reducing metal impurity pollution in SiC single crystal growth, and belongs to the technical field of semiconductor material preparation. The method comprises the following steps: loading SiC powder into a crucible, fixing a seed crystal and placing a required growth component, performing vacuumizing treatment after sealing a SiC growth chamber; increasing temperature to a set temperature, and inputting inert gas to a set pressure, and keeping temperature; then inputting mixed gas of hydrogen chloride and inert gas, converting metal impurities into metal chlorides and discharging; replacing with inert gas, and then performing single crystal growth by using a PVT method. The application can effectively remove metal impurities in a growth crucible without damaging SiC seed crystals and growth raw materials, and the obtained SiC single crystal has high purity; the application does not need to perform large-scale modification on equipment, and can also reduce the requirement on raw material purity in SiC single crystal growth to a certain extent, and greatly reduces SiC single crystal manufacturing cost.