1238 results about "Metal chloride" patented technology

A system involving a two-step gasification of a carbonaceous source to produce bulk hydrogen that avoids the early formation of CO₂ and obviates the traditional water gas shift (WGSR) step, carbochlorination of a metallic ore the production of metals found in the ore that utilizes carbon monoxide as an oxygen sink, rather than the traditional coke, and carbon oxides management that eliminates major impediments to emission-neutral power generation and the reduction of major metals. The gasification uses a rotary kiln reactor and gas-gas cyclonic separation process to separate synthesis gas into purified hydrogen and purified carbon monoxide. Purified bulk carbon monoxide issued in metallurgical reduction, and purified bulk hydrogen as fuel for an emission-neutral hydrogen combined cycle (HCC) turbine power generation station. The carbochlorination is integrated with: a) the concurrent separation and purification of all metal-chlorides (metchlors) and capture of CO₂ for passage to the carbon oxides management system; b) the direct reduction of metchlors to nanoscale metallurgical powders and/or to dendritically-shaped particles, including metchlor reduction for the ultrahigh-performance semiconductor metals of the III-V group; and, c) the reforming of metal-oxides with improved crystalline structure from metchlors. The carbon oxides management collects, stores and directs to points of usage, carbon oxides that arise in various processes of the integrated system, and captures carbon monoxide for process enhancement and economic uses and captures carbon dioxide as a process intermediate and for economic uses.

Liquid feed flame spray pyrolysis of solutions of a metal oxide precursor which is an alkoxide or C_1-6 carboxylate and at least one second metal oxide precursor and/or second metal compound dissolved in oxygenated solvent by combustion with oxygen lead to the formation of sub-micron mixed-metal oxide powders not accessible by other processes or by the pyrolysis of metal chlorides or nitrates. The powders have numerous uses in advanced materials applications including particulate solid state lasers, advanced ceramic materials, and as catalysts in organic synthesis and automobile exhaust systems.

Lithium ion battery positive electrode material are described that comprise an active composition comprising lithium metal oxide coated with an inorganic coating composition wherein the coating composition comprises a metal chloride, metal bromide, metal iodide, or combinations thereof. Desirable performance is observed for these coated materials. In particular, the non-fluoride metal halide coatings are useful for stabilizing lithium rich metal oxides.

The invention discloses a preparation method of a catalyst with a core-shell structure for a low-temperature fuel cell, belonging to the technical field of fuel cells. In the catalyst with the core-shell structure prepared with the preparation method, platinum is taken as a shell, a metal alloy consisting of more than one of metals including ruthenium, platinum, iron, cobalt, nickel, copper, tin, iridium, gold and silver is taken as an inner core, and the shell and the inner core are loaded on a carbon carrier. The preparation method comprises the following preparation steps of: reducing a metal chloride or a metal nitrate with a reducing agent, and forming a core on the carbon carrier with a large specific surface area; stabilizing the core; and precipitating Pt on a core layer with a impregnation reduction method, a high-pressure organic sol method, a microwave method or an electrodeposition process to form the catalyst with the core-shell structure. Due to the adoption of the preparation method, the utilization ratio of noble metal platinum is increased, the cost of an electro-catalyst is reduced effectively, and the methanol oxidizing capability and oxygen reducing activity of the obtained catalyst are increased by 10.8 times and 8.7 times in maximum respectively in comparison to the mass ratio and activity of a commercial JM4100Pt/C catalyst.

The invention relates to a method of preparing silver nanowire by utilization of a hydrothermal method. The steps including: directly mixing ethylene glycol PVP solution which contains metal chloride with the concentration of 0.01M-2MPVP and the concentration of 1*10M-1*10-2M with ethylene glycol silver nitrate solution with the concentration of 0.01M-1M at normal temperature, stirring the mixed solution to be uniformed mixed, obtaining mixed reaction mother solution; the volume ratio of ethylene glycol silver nitrate solution to ethylene glycol PVP solution is 1:1-10:1; the molar ratio of silver nitrate to the PVP in the mixed reaction mother solution is 1:10-10:1, and the molar ration of silver nitrate to metal chloride is 10:1-104:1; putting the mixed reaction mother solution into an reaction kettle, warming the mixed reaction mother solution to 160 DEG C - 180 DEG C to carry out reduction reaction, the silver salt in the mother solution is restored, and silver nanowire is obtained. The method of preparing silver nanowire by utilization of the hydrothermal method has the advantage of being simple and high-efficient, no need of being preheated when the preliminary reaction is carried out at the normal temperature, easy to control of reaction conditions, and especially applicable to mass production.

Certain example embodiments relate to seals for glass articles. Certain example embodiments relate to a composition used for sealing an insulted glass unit. In certain example embodiments the composition includes vanadium oxide, barium oxide, zinc oxide, and at least one additional additive. For instance, another additive that is a different metal oxide or different metal chloride may be provided. In certain example embodiments, a composition may be combined with a binder solution that substantially or completely burns out by the time the composition is melted. In certain example embodiments, a CTE filler is included with a frit material. In certain example embodiments, a vacuum insulated glass unit includes first and second glass substrates that are sealed together with a seal that includes the above-described composition.

Processes comprising: (a) reacting phosgene and a monohydroxyl aryl compound in the presence of a suitable catalyst to form a diaryl carbonate and a solution comprising an alkali chloride; (b) separating the diaryl carbonate from the solution; (c) adjusting the pH of the solution to a value of less than or equal to 8 to form a pH-adjusted solution; (d) treating the pH-adjusted solution with an adsorbent to form a treated solution; (e) subjecting at least a portion of the treated solution to electrochemical oxidation to form chlorine and an alkali hydroxide solution; and (f) recycling at least a portion of one or both of the chlorine and the alkali hydroxide solution.

The present invention relates to the use of an exothermic composition having, as essential components, a water absorptive polymer and/or tackifier, carbon component and/or metal chloride and features that the product is as a whole ink-like or cream-like in a method of manufacturing an exothermic device.

A method for extracting valuable metals from laterite nickel ore on the basis of the hydrochloric acid fully-closed circulation method belongs to the field of non-ferrous metallurgy. Crushed laterite nickel minerals are taken as raw material and the technique comprises the following technological steps: chlorination-leaching; recovering iron (Fe) from leaching residue; extracting nickel (Ni) and cobalt (Co); spray-drying the mother liquor; and calcining. By leaching the laterite nickel minerals with a mixed solution of hydrochloric acid and metal chlorides as a leaching agent under the proper conditions of heating and pressurizing and further precipitating nickel and cobalt with a compound vulcanizing agent, the overall recovery rate of nickel and cobalt is high; the closed circulation of hydrochloric acid is realized while processing the laterite nickel minerals with water and hydrochloric acid, therefore, the method is environment-friendly by realizing the zero discharge of waste water; comprehensive utilization of the resources, such as Ni, Co, Fe and Mg, in the laterite nickel ore can be realized; and the resources can be efficiently utilized and the clean production can be realized by recovering and reutilizing the waste heat and the residue acid during the production.

The invention relates to a silicon oxide composite negative pole material for a lithium ion secondary battery and a preparation method thereof. The composite material consists of silicon oxide, graphite type carbon materials and amorphous carbon materials. The preparation method comprises the following steps: performing magnesiothermic reduction on silicon dioxide so as to generate the silicon oxide by using alkaline(soil) metal chloride as a heat absorbent; after performing acid corrosion, sucking filtration, washing and vacuum drying on the silicon oxide, performing pre-ball milling on the dried silicon oxide and graphite; then complementing an organic carbon source, performing secondary ball milling, and then performing high-temperature heat treatment so as to obtain the silicon oxide composite negative pole material. The oxygen content of the silicon oxide is controlled by regulating the proportion of the silicon dioxide to magnesium, and then the silicon oxide is uniformly mixed with the graphite type carbon materials and the organic carbon source. The silicon oxide composite negative pole material disclosed by the invention has the characteristics of a higher first-time Kulun efficiency, a high specific capacity, a better cycle performance and the like; the preparation method adopted by the invention is easy in operation, simple in technology, low in cost and suitable for the industrial mass production.

The present invention belongs to the field of transparent ceramic material technology, and is especially preparation process of submicron transparent crystal alumina ceramic possessing high linear transmittance. The transparent alumina ceramic is prepared with high purity alumina and nanometer zirconia additive, and through drying pressing and cold isostatic pressing or gel injecting to form, low temperature pre-sintering and hot isostatic pressing sintering. It has ceramic body relative density greater than 99.95 %, average crystal size not greater than 0.5 micron, Vickers hardness of 2200, bending strength of 650-800 MPa and linear transmittance at 600 nm greater than 60 %. It is suitable for use in making transparent bulletproof armoring, high temperature observation window, false teeth, etc.

The invention relates to a method for extracting nickel and cobalt from a laterite-nickel ore, comprising the following steps of mineral preparation, chloride leaching, solid-liquid separation, leaching liquid concentration, sulfide precipitation, solid-liquid separation and hydrochloric acid recovery of the laterite-nickel ore. A chloride leaching agent is mixing solution of metal chloride and hydrochloric acid; the leaching liquid is concentrated by heating; ferric chloride and magnesium chloride are crystallized and separated out so that Fe/Ni ratio is reduced below 1/5 of Fe/Ni ratio before the concentration; the magnesium oxide or the ferric oxide generated in the hydrochloric acid recovery process is used as neutralizer; polysulfide, just precipitated metal sulfide and metal sulfide are used as sulfuration precipitator; mother liquor with precipitated nickel is roasted with the ferric chloride and the magnesium chloride which are obtained by concentrating the leaching liquid; the metal chloride in the mother liquor and the metal chloride obtained from the concentration are hydrolyzed into chlorine hydride and metal oxide; and the obtained acid is recycled to use. The method for extracting nickel and cobalt from the laterite-nickel ore improves the leaching rate of valuable metals such as nickel, cobalt and so on in the leaching process of the laterite-nickel ore, reduces the energy consumption and is environment friendly.

The invention provides a method for preparing an alligatored surface of a light-emitting diode by using PS spheres as template. The method comprises the following steps: (1) performing epitaxial growth according to the conventional method to prepare an epitaxial wafer; (2) paving a layer of one-layer film which comprises closely packed PS spheres on the P-type contact layer obtained through epitaxial growth; (3) mixing precursor which is tetraethyl silicate, metal chloride or metal nitrate with ethanol and water to fill in the gap of the PS spheres of the one-layer film and the P-type contactlayer, standing at room temperature, heating to decompose the mixture and obtain the related oxides; (4) placing the epitaxial wafer in dichloromethane to dissolve the PS spheres, preserving the formed oxides in the gap of the PS spheres and the P-type contact layer on the P-type contact layer according to bowl-shaped periodic arrangement structure; (5) using the formed oxides as mask to perform dry etching on the P-type contact layer and obtain the alligatored surface; and (6) corroding and removing the residual oxides. The invention can be used to prepare the alligatored surface of the light-emitting diode with controllable etching period and depth.