30 results about "Tetrachloroaluminate" patented technology

A rechargable magnesium battery having an non-aqueous electrolyte is provided. The properties of the electrolyte include high conductivity, high Coulombic efficiency, and an electrochemical window that can exceed 3.5 V vs. Mg/Mg⁺². The use of the electrolyte promotes the electrochemical deposition and dissolution of Mg without the use of any Grignard reagents, other organometallic materials, tetraphenyl borate, or tetrachloroaluminate derived anions. Other Mg-containing electrolyte systems that are expected to be suitable for use in secondary batteries are also described.

The invention provides a method for preparing aluminum polychlorid from byproducts generated in methyl diethyl phosphate production. The method comprises the following steps: (1) dispersing byproductsolid dregs into a solvent, analyzing, and collecting a solution; (2) cooling the solution with water, and separating aluminum chloride hydrate crystal; (3) hydrolyzing and polymerizing the aluminum chloride hydrate crystal, and aging, thereby obtaining the aluminum polychlorid. By adopting the method, solid dregs rich in sodium tetrachloroaluminate are adopted as a raw material, an inorganic polymeric flocculant, namely the aluminum polychlorid, is successfully prepared through steps of simple processes, and not only is the problem of waste disposal solved, but also a high additional value product can be successfully made.

The invention relates to a method for converting cis-substituted cyclohexyl into trans-substituted cyclohexyl. The cis-substituted cyclohexyl has a structural formula shown in the specifications, wherein R and R' are the same or different and are an H atom, fatty hydrocarbyl with 1 to 10 carbon atoms, or aromatic hydrocarbyl with 1 to 10 carbon atoms; X and X' are the same or different and are an H element, 1 to 3 halogens, cyan, alkyl, alkoxy, trifluoromethyl or trifluoromethoxy; a catalyst converted from an isomer is weakened aluminum trichloride of which the activity is weakened by a weakening additive, or tetrachloroaluminate; and the reaction temperature is between -20 and +50 DEG C. The conversion method is simple and practicable, other isomerization side reactions in the cyclohexyl conversion process can be effectively inhibited when cyclohexyl conversion reaction is performed, a few isomerization byproducts are generated, yield is high, and a wide application prospect is achieved.

The invention discloses a method for preparing dichloro-alkylphosphine, which uses sodium chloride to decomplex the binary complex of dichloro-alkylaluminum or alkyl aluminum sesquichloride and phosphorus trichloride When adding the alkane solvent, the free dichloro-alkylphosphine enters the alkane solvent, and the alkane solution of the dichloro-alkylphosphine is separated from the newly generated sodium tetrachloroaluminate NaAlCl by solid filtration; the target product dichloro-alkyl The mixture of phosphine and alkane solvent can be separated by distillation, or directly enter the next application process without separation. The decomposition of the traditional dichloro-alkylphosphine high-temperature distillation is avoided, the yield is increased and the waste residue is reduced.

The invention relates to a treatment method of sodium tetrachloroaluminate solid residues. The treatment method comprises the following steps: (1) mixing sodium tetrachloroaluminate solid residues with water for dissociation, then adding a separating agent to separate out aluminum chloride hexahydrate, or directly mixing the sodium tetrachloroaluminate solid residues with the separating agent fordissociation, separating out aluminum chloride hexahydrate, and then carrying out primary solid-liquid separation to obtain an aluminum chloride hexahydrate solid and primary filtrate; and (2) carrying out concentration crystallization and secondary solid-liquid separation on the primary filtrate to obtain a sodium chloride solid and a secondary filtrate. According to the treatment method, an organic solvent does not need to be introduced, cross contamination does not exist, and the cost can be reduced; the aluminum chloride and the sodium chloride which are obtained by dissociating the sodiumtetrachloroaluminate solid residues are fully recycled, so that the high resource utilization of the sodium tetrachloroaluminate solid residues is realized, the obtained secondary filtrate can be returned to a solid residue dissociation stage to provide a separating agent, the concept of circular economy is embodied, and the method has the advantages of simple process flow, simplicity and convenience in operation and the like.

The invention relates to the technical field of aluminum and aluminum alloy purifying and refining treatment, in particular to a refining agent for metal smelting, a preparation method and a refiningtechnology. The refining agent for metal smelting aims to remove impurities of molten aluminum in the aluminum alloy refining process, so that the product quality is improved, and atmospheric pollution is avoided. The refining agent for metal smelting comprises, by weight, 30-40 parts of potassium chloride, 15-30 parts of sodium chloride, 10-20 parts of sodium tetrachloroaluminate, 8-20 parts of sodium sulfate, 15-30 parts of chloride sodium silicate and 2-5 parts of activating agent. According to the refining agent for metal smelting, the activating agent is added to the refining agent, the activating agent can promote sodium tetrachloroaluminate in the refining agent to decompose and reduce the interfacial tension between the refining agent and oxide inclusion at the same time, so that the oxide inclusion can smoothly float on the surface of the melt and then is removed, and therefore the product quality is improved.

The invention relates to a treatment method for solid sodium tetrachloroaluminate residue. The treatment method comprises the following steps: mixing the solid sodium tetrachloroaluminate residue withwater and dissociating at first; then adding alkali and carrying out polymerization reaction; then carrying out concentration and crystallization, and solid-liquid separation to obtain a sodium chloride solid and a concentrated mother solution; and then curing the obtained concentrated mother solution to obtain a polyaluminum chloride liquid product. According to the treatment method, aluminum chloride and sodium chloride which are obtained by dissociating the solid sodium tetrachloroaluminate residue are adequately recovered, so that the problem of disposal for the solid waste is solved, andthe polyaluminum chloride liquid product with a high additional value is prepared, the mass fraction of Al2O3 is not less than 10%, the basicity of Al2O3 is not less than 60%, and the index requirements of the national standards GB 15892-2009 are met; and according to the treatment method, an organic solvent does not need to be introduced, so that cross contamination is avoided, and the cost canbe lowered, and the treatment method has the advantages of being simple in process flow, simple and convenient to operate, low in equipment investment, and the like.

The invention relates to the technical field of aluminum and aluminum alloy purification and refining treatment, in particular to a refining agent for aluminum alloy as well as a preparation method and a refining process, and aims at removing impurities in molten aluminum in the aluminum alloy refining process so as to improve the product quality. The refining agent for the aluminum alloy comprises, by weight, 30-40 parts of potassium chloride, 15-30 parts of sodium chloride, 10-20 parts of sodium tetrachloroaluminate, 8-20 parts of sodium sulfate, 15-30 parts of sodium fluosilicate and 1-3 parts of accelerants. According to the refining process, the accelerants are added into the refining agent, and can promote decomposition of the sodium tetrachloroaluminate in the refining agent, and meanwhile, the interface tension between the refining agent and oxide inclusions is reduced, and therefore, the oxide inclusions can smoothly float on the liquid surface and then are removed, and the product quality is improved.

The invention discloses a method for producing sodium tetrachloroaluminate by using a TiCl4-containing material. The method is characterized by comprising the following steps: adding sodium chloride and a reducing agent into the TiCl4-containing material and evaporating TiCl4 by isolating air at 130 to 300 DEG C; and performing vacuum distillation on residues, obtained after the TiCl4 is evaporated, at 200 to 600 DEG C and recovering aluminum in the form of sodium tetrachloroaluminate. The method has the advantages that the process is simple; the production cost is low, the obtained sodium tetrachloroaluminate has high purity; the TiCl4 obtained by recovery has few impurities; and environmental friendliness is realized.

The invention provides a treatment method of sodium tetrachloroaluminate generated in a production process of methyl dichlorophosphine, wherein the treatment method comprises the steps: adding sodium tetrachloroaluminate solid slag into a sodium hydroxide solution, stirring for reaction to obtain mixed slurry, filtering to obtain aluminum hydroxide solid and first filtrate, washing and drying the aluminum hydroxide solid, and collecting second filtrate generated in the washing process; roasting the aluminum hydroxide solid to obtain aluminum oxide; concentrating the first filtrate and the second filtrate to obtain a concentrated solution, carrying out solid-liquid separation to obtain a first crude sodium chloride product and a concentrated mother solution, removing moisture in the concentrated mother solution, and drying to obtain a second crude sodium chloride product; combining the first crude sodium chloride and the second crude sodium chloride and heating to remove impurities, and thus obtaining refined sodium chloride; and adding pure water into the refined sodium chloride to prepare a saturated saline solution, adding calcium chloride, filtering to obtain third filtrate, adding sodium carbonate and sodium hydroxide into the third filtrate, filtering to obtain a primary refined saline solution, and performing resin treatment to obtain a secondary refined saline solution.

The invention relates to a treatment method of sodium tetrachloroaluminate. The treatment method is characterized by comprising the following steps: 1) crushing sodium tetrachloroaluminate blocky crystals; 2) adding a certain amount of hot water, and carrying out a reaction at a temperature of 50-100 DEG C, 3) after the reaction is finished, adding an alkali metal hydroxide or sodium bicarbonate to neutralize HCl, and 4) transferring the harmless substance obtained in the step 3) into a wastewater sedimentation tank. The product treated by the treatment method of sodium tetrachloroaluminate isharmless and environmentally friendly.

The invention discloses a production process of high-purity vanadium pentoxide for a vanadium-nitrogen alloy, and relates to the technical field of vanadium pentoxide purification. When the high-purity vanadium pentoxide for producing the vanadium-nitrogen alloy is used, industrial-grade vanadium pentoxide is used as a vanadium source, the chlorinating agent obtained by blending aluminum chloride and sodium chloride is firstly used for carrying out two-stage heating chlorination to obtain vanadium oxytrichloride, and then ultrasonic spraying ammonification is carried out, so that the specific surface area of a precipitate is increased while agglomeration of the precipitate is avoided; meanwhile, tail gas containing ammonia gas is recycled and introduced into ultrasonic spraying ammoniation equipment, so that the production process of the high-purity vanadium pentoxide for the vanadium-nitrogen alloy is more energy-saving and environment-friendly; liquid sodium tetrachloroaluminate generated in the preparation process of vanadium oxytrichloride effectively controls volatilization of aluminum chloride, so that aluminum chloride and a vanadium source are in full contact for chlorination, the yield and purity of vanadium oxytrichloride are improved, and the yield and purity of high-purity vanadium pentoxide are further improved.

The invention relates to a preparation method of high-purity sodium tetrachloroaluminate as a second electrolyte of a sodium salt battery. The method comprises the following steps: uniformly mixing anhydrous aluminum trichloride, anhydrous sodium chloride and metal aluminum; adding the anhydrous aluminum trichloride, anhydrous sodium chloride and metal aluminum after uniform mixing into a reactorand introducing high-purity nitrogen and performing heating; opening a top lid of the reactor after all the materials are liquefied, performing continuous stirring and then closing the top lid of thereactor, and continuously keeping the temperature; transferring a supernatant in the reactor into a material storage tank heated to 170-250 DEG C in advance after the reaction is completed; connectingthe material storage tank maintained at 170-250 DEG C into a vacuum purification apparatus, and performing purification on a product for 0.5-2 h; and cooling the material storage tank and introducingan inert gas for sealing and storage to obtain the final high-purity sodium tetrachloroaluminate crystal product. The purity of sodium tetrachloroaluminate prepared by the method of the invention canreach 99.5% or more, and can meet requirements for electrolyte purity of the sodium salt battery.