55 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 discloses a recycling process of sodium tetrachloroaluminate in phosphinothricin production. The process comprises the following steps that 1, mismatching and precipitation are carried out; 2, solids are filtered; 3, cooling precipitation is carried out; 4, reutilization is carried out; 5, cyclic utilization is carried out; 6, aluminum polychlorid is prepared. Sodium tetrachloroaluminate solid waste is changed into treasure, alchlor obtained after mismatching is recycled, the problem of treatment of sodium tetrachloroaluminate solid waste is solved, pollution to environment is reduced, no three waste is discharged, the atom economy of a reaction is improved, and large-scale production of phosphinothricin is facilitated. A mismatching agent and a poor solvent adopted in the process are low in price and easy to obtain, the whole process is easy and convenient to operate, and especially suitable for industrial production. Further prepared polymerization alchlor can be adopted as a water purifying agent, and is wide in application range and especially suitable for sewage treatment of chemical plants.

An electrolyte for use in electrochemical cells 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 preparation method of a porous activated aluminum oxide adsorbing material. The preparation method comprises the following steps: (1) dissolving and hydrolyzing solid sodium tetrachloroaluminate by using an ethanol water solution; (2) adding water into an obtained solution to generate aluminum trichloride hexahydrate; (3) adding ammonia water for reaction to generate hydrated alumina suspension liquid, and ageing to obtain alpha-diaspore; (4) peptizing by using acid to obtain sol, dropwise adding the sol into an oil-ammonia column by adopting a dripping method, allowing the sol to retract to form balls under the effect of a surface tensile force in oil, putting the balls into ammonia water, neutralizing and ageing to form hard gel ball-like substances, washing away oil ammonia by using water and drying; and (5) baking to obtain the porous activated aluminum oxide adsorbing material. The preparation method disclosed by the invention can be used for solving the problems of wastewater treatment, improving cyclic utilization of resources, realizing value maximization and increasing the additional value of byproducts; the porous activated aluminum oxide adsorbing material is good in thermal stability at high temperature, large in specific surface area, good in adsorption performance, simple in production process, convenient to operate, low in cost and basically free of environmental pollution from aspect of production technology.

An electrolyte for use in electrochemical cells 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 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.

A electrochemical cell 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 discloses a recycling process of sodium tetrachloroaluminate in phosphinothricin production. The process comprises the following steps that 1, mismatching and precipitation are carried out; 2, solids are filtered; 3, cooling precipitation is carried out; 4, reutilization is carried out; 5, cyclic utilization is carried out; 6, aluminum polychlorid is prepared. Sodium tetrachloroaluminate solid waste is changed into treasure, alchlor obtained after mismatching is recycled, the problem of treatment of sodium tetrachloroaluminate solid waste is solved, pollution to environment is reduced, no three waste is discharged, the atom economy of a reaction is improved, and large-scale production of phosphinothricin is facilitated. A mismatching agent and a poor solvent adopted in the process are low in price and easy to obtain, the whole process is easy and convenient to operate, and especially suitable for industrial production. Further prepared polymerization alchlor can be adopted as a water purifying agent, and is wide in application range and especially suitable for sewage treatment of chemical plants.

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 discloses a method of recycling a catalyst used in Friedel-Crafts process for producing an aryl-s-triazine ultraviolet absorber. The method includes the following steps: 1) with chlorobenzene as a solvent, performing a Friedel-Crafts reaction to cyanuric chloride and aromatic hydrocarbon under a catalyst, AlCl3, to prepare a reaction solution which contains an intermediate of the aryl-s-triazine ultraviolet absorber; 2) adding a tetrachloroaluminate ionic liquid, as an extract agent, to the reaction solution so as to separate the intermediate of the aryl-s-triazine ultraviolet absorber from the AlCl3 or tetrachloroaluminate ions, and recycling the extracted and separated AlCl3 or tetrachloroaluminate ions as the catalyst or the extract agent for producing the aryl-s-triazineultraviolet absorber via the Friedel-Crafts process. In the method, the tetrachloroaluminate ionic liquid is used as the extract agent to separate the intermediate from the catalyst phase AlCl3, so that the catalyst, AlCl3, used in the Friedel-Crafts process can be recycled. The method eliminates waste water containing the AlCl3 without reduction on product yield, thus significantly improving clean production performance.

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 present invention provides a method for producing sodium tetrachloroaluminate, and relates to the technical field of chemical synthesis, in order to solve the problem that the newly introduced nitrogen has not been subjected to temperature treatment, and as the nitrogen is introduced and discharged, the heat in the reaction system is lost as the nitrogen flows. The method for producing sodium tetrachloroaluminate comprises: adding raw materials into a reaction tank; when a shutoff air inlet pipeline connected to the reaction tank is controlled to be in a conducting state, and a shutoff exhaust pipeline connected to the reaction tank is in a closed state, an inert gas is introduced into the reaction tank; when the pressure in the reaction tank reaches a preset value, the shutoff air inlet pipeline connected to the reaction tank is controlled to be in a closed state; heating the raw materials in the reaction tank to obtain a semi-finished product; transferring the semi-finished product into a settling tank; adding aluminum foil into the settling tank containing the semi-finished product, introducing an inert gas and keeping it still to obtain sodium tetrachloroaluminate; transferring the sodium tetrachloroaluminate into a storage tank into which the inert gas is introduced.

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 belongs to the technical field of solid-state lithium metal batteries, and discloses an amorphous inorganic ion conductor and a preparation method and application thereof, and the preparation method comprises the following steps: uniformly mixing lithium tetrachloroaluminate and sodium tetrachloroaluminate to obtain a mixture; and melting the mixture to obtain a molten precursor, and cooling the molten precursor to room temperature to obtain the amorphous inorganic lithium ion conductor Li < x > Na < 1-x > AlCl4, x being greater than or equal to 0.15 and less than or equal to 0.85, wherein the amorphous inorganic lithium ion conductor Li < x > Na < 1-x > AlCl4 is used as an interface phase between a positive electrode of a solid-state lithium metal battery and a solid-state electrolyte. The amorphous LixNa1-xAlCl4 has the remarkable advantages that the preparation temperature is low, the crystal structure of the product can be controlled, the ionic conductivity of the product is high, and the compatibility with a solid electrolyte and a positive electrode material is good. The method is short in preparation period, low in cost and suitable for industrial application.

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 relates to the technical field of purification and refining treatment of aluminum and alloys thereof, in particular to an environment-friendly refining agent, a preparation method and arefining process and aims to remove impurities in molten aluminum in the aluminum alloy refining process so as to improve the product quality and avoid atmospheric pollution. The environment-friendlyrefining agent is prepared from components in parts by weight as follows: 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 silicate chloride and 1-3 parts of a catalyst. An accelerant is added to the refining agent, the accelerant can promote decomposition of sodium tetrachloroaluminate in the refining agent, besides, interfacial tension between the refining agent and oxide inclusions is reduced, so that the oxide inclusions can smoothly float on the liquid level to be further removed, and the product quality is improved.

The invention provides a reflective integrated electrochromic device. The reflective integrated electrochromic device sequentially comprises a first substrate layer, a working electrode layer, an integrated electrochromic layer, a counter electrode layer and a second substrate layer, the integrated electrochromic layer comprises a metal source compound; the metal source compound is selected from silver chloride, silver acetate, silver nitrate, silver perchlorate, silver sulfate, silver cyanide, silver sulfide, silver hexafluorophosphate, silver tetrafluoroborate, silver tetrachloroaluminate, silver trifluoromethanesulfonate, silver bis (trifluoromethane sulfonimide), copper fluoride, copper chloride, copper cyanide, copper sulfate, copper acetate, copper aluminate, cuprous fluoride, cuprous chloride, cuprous cyanide, gold chloride and gold cyanide; the catalyst is one or more of gold sulfide, gold chloride, gold (II) sulfide, nickel chloride, nickel sulfate, cobalt chloride and platinum chloride. The device has a relatively large transmittance / reflectivity dynamic change range, can perform light and heat management at the same time, and can keep a stable coloring or fading state for one month or even several months under a no-load condition.

The application relates to a preparation process of synthesizing hybrid zinc aluminate by using solid waste sodium tetrachloroaluminate, and belongs to the technical field of chemical dangerous waste treatment, and comprises the following synthesis steps: S1, zinc compounds are added in water, and the zinc compounds are completely dissolved or uniformly dispersed; S2, solid waste sodium tetrachloroaluminate is added, and the solid waste sodium tetrachloroaluminate is completely dissolved and reacted by continuing to stir; S3, an oxidizing agent is added, and the reaction is continued by keeping warm and stirring, then filtration is carried out, and the phosphorus content in the filtrate is detected; S4, after the phosphorus content is qualified, sodium hydroxide solution is added into the filtrate, the pH value is controlled, and white zinc aluminate precursor precipitate is generated; S5, the white zinc aluminate precursor precipitate is transferred into a high-pressure reaction kettle to carry out hydrothermal reaction, and hybrid zinc aluminate liquid is generated; S6, negative pressure suction filtration is carried out, the obtained filter solid is washed by using deionized water, the filter solid is subjected to spray drying, and solid hybrid zinc aluminate is obtained. The application fully utilizes aluminum resources in the solid waste sodium tetrachloroaluminate, and total phosphorus impurities in the solid waste sodium tetrachloroaluminate are also utilized to generate effective components, so that waste is turned into treasure.

The invention belongs to the technical field of preparation of aluminum-containing compounds, and particularly discloses a method for preparing aluminum hydroxide with high specific surface area based on sodium tetrachloroaluminate. The preparation method comprises the following steps: mixing a sodium tetrachloroaluminate raw material (sodium tetrachloroaluminate solid waste residue as a byproduct in production of glufosinate-ammonium or methyl phosphorus dichloride) with water to obtain a mixed solution; mixing the mixed solution with alkali liquor, and reacting to obtain reaction liquid containing aluminum hydroxide; and sequentially aging, separating and washing to obtain the aluminum hydroxide with high specific surface area. The obtained aluminum hydroxide is a porous material, the specific surface area reaches 300 m < 2 > / g or above, the microstructure is a sheet / block nanoparticle combination, and the aluminum hydroxide has good dispersity and activity and can be used in the fields of catalyst carriers, adsorbents, flame retardants and the like. The method is simple in process and does not involve complex equipment and high energy consumption conditions; and when the treated object is industrial solid waste residue, the method has the advantages of high aluminum recovery rate, thorough impurity removal and no influence of phosphorus.

A process for the production of sodium tetrachloroaluminate, the process comprising under anhydrous conditions and under an oxygen-free atmosphere: in a first feeding stage, providing a reactor comprising sodium tetrachloroaluminate and solid aluminum, and optionally solid sodium chloride, and heating the reactor to a temperature of from about 150°C to about 400°C, thereby providing a reaction mixture comprising liquid phase sodium tetrachloroaluminate; in a chlorine feeding stage, contacting the reaction mixture with a chlorine-containing gas; and in an optional further feeding stage, adding solid aluminum and / or solid sodium chloride to the reactor, wherein the optional further feeding stage is conducted during or alternatively to the chlorine feeding stage, and wherein solid sodium chloride is added to the process in at least one of the first feeding stage or the further feeding stage.

This invention discloses a tetrachloroaluminate-modified type A molecular sieve, its preparation method, and its application. The invention uses fly ash cenospheres as the main raw material to prepare a type A molecular sieve. Through modification with a mixture of fly ash and tetrachloroaluminate, it exhibits excellent adsorption performance for cobalt, cesium, and strontium ions. The type A molecular sieve prepared in this application has a good synergistic effect with tetrachloroaluminate, effectively solving the problems of complex processes, high costs, and poor adhesion of existing molecular sieve adsorbent preparation methods in the market. 137 Cs, 60 Co, 90 This method addresses the problem of low adsorption rates of major hazardous nuclides in radioactive wastewater such as Sr, and can be used to adsorb radionuclides in nuclear wastewater.

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 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 treatment method of sodium tetrachloroaluminate solid slag. The treatment method firstly mixes sodium tetrachloroaluminate solid slag with water for dissociation, then adds alkali to carry out polymerization reaction, and then carries out concentrated crystallization, solid-liquid Separating to obtain solid sodium chloride and concentrated mother liquor, and then aging the obtained concentrated mother liquor to obtain a liquid product of polyaluminum chloride. The treatment method of the present invention fully recovers the aluminum chloride and sodium chloride obtained by dissociating the solid slag of sodium tetrachloroaluminate, which not only solves the problem of solid waste disposal, but also prepares high value-added polyaluminum chloride Liquid product, Al 2 o 3 The mass fraction is ≥10%, and the basicity is ≥60%, which meets the index requirements of the national standard GB 15892-2009; the treatment method does not need to introduce organic solvents, does not have cross-contamination, and can reduce costs, and has the advantages of simple process flow, It has the advantages of simple operation and less investment in equipment.

The application belongs to the technical field of inorganic compound preparation, and particularly discloses a sodium tetrachloroaluminate preparation method based on microwave heating. In a protective atmosphere, aluminum chloride and sodium chloride are reacted under microwave heating to obtain sodium tetrachloroaluminate; the sodium tetrachloroaluminate is purified by aluminum during preparation. The application melts the reaction raw materials by microwave heating, the aluminum chloride has strong polarity, dominates microwave absorption, and after mixing, the dielectric loss factor of the system can be improved to 0.5-1.2, and the wave absorbing capacity is more than 10 times higher than that of pure NaCl. In the molten sodium tetrachloroaluminate, AlCl4 ‑ and Na + freely move and efficiently convert microwave energy through ionic conduction loss. At the same time, compared with traditional stirring, the movement of sodium chloride molecules in the external alternating electromagnetic field also accelerates the synthesis speed with aluminum chloride, greatly reducing the preparation time of sodium tetrachloroaluminate.