55 results about "Tetrachloride" patented technology

The invention relates to a preparation method of a pectin-derived carbon-coated amorphous tin-zinc composite oxide lithium ion battery negative electrode material. The method comprises the following steps: dropwise adding a tin tetrachloride solution and an acidified zinc oxide solution into a pectin solution to obtain a metal ion-pectin dispersion liquid; adding ammonia water to obtain a pectin precursor solution; freezing and solidifying with liquid nitrogen; and after freeze-drying, roasting for 3-5 hours to obtain the pectin derived carbon coated amorphous tin-zinc composite oxide lithium ion battery negative electrode material. The reversible specific capacity of the obtained composite material reaches 1339 mA h g <-1 > after 100 cycles under the current density of 0.2 A g <-1 >.

This invention discloses a method for preparing a high-temperature resistant, strongly basic anion exchange resin, belonging to the field of ion exchange resins. The method includes three steps: First, white spheres with a crosslinking degree of 6-10 undergo a chloromethylation reaction by sequentially adding zinc dichloride and tin tetrachloride to improve the uniformity of the chloromethyl group distribution in the chlorospheres; second, the chlorospheres undergo an etherification reaction using tetrabutylammonium bromide as a phase transfer catalyst, and the dropping rate of sodium methoxide solution is controlled to improve the etherification conversion rate; finally, the etherification product undergoes a quaternization reaction with a trimethylamine aqueous solution to obtain the strongly basic anion exchange resin. This invention, by selecting the degree of crosslinking and optimizing the catalyst addition method for chloromethylation and the sodium methoxide dropping rate for the etherification reaction, results in a more uniform distribution of quaternary ammonium groups in the resin, significantly improving the ion exchange capacity and high-temperature resistance of the resin.

The application relates to the technical field of metal organic thin layer material preparation, in particular to a kilogram-level preparation method of metal organic thin layer material. The preparation method comprises the following steps: S1, adding zirconium tetrachloride and H2BPYDC into a polytetrafluoroethylene reaction kettle, dissolving the zirconium tetrachloride and the H2BPYDC, and then adding a composite; S2, sequentially adding a DMF solution of palladium fluoroacetate, a catalyst and concentrated hydrochloric acid into the reaction kettle; S3, transferring the reaction kettle into an oven, centrifuging to obtain a cyan suspension after 18-20 hours, dispersing the cyan suspension in a DMF solution in batches at 60 DEG C, placing for 5-6 hours, removing unreacted substrates, and obtaining a solid; S4, cleaning the solid obtained in S3 by using DMF and tetrahydrofuran respectively, and vacuum drying for 12 hours to obtain the metal organic thin layer material. The kilogram-level preparation method of metal organic thin layer material is provided, so as to solve the problems of low preparation yield, slow rate and difficulty in kilogram-level preparation of metal organic thin layer material in the related art.

Tin tetrachloride pentahydrate, zinc nitrate hexahydrate and dimethylimidazole are used as raw materials, methanol is used as a solvent, and the tin-zinc bimetallic oxide, which is named Sn-Zn-O for short, is obtained through stirring, centrifugal drying and calcining; the material is an n-type semiconductor, and the chemical composition of the material is SnO2 and ZnO. The microstructure of Sn-Zn-O is a nano microsphere, and the particle size range of the Sn-Zn-O is 100-250 nm. The invention relates to a preparation method of a hydrogen sensor based on Sn-Zn-O, namely when the Sn-Zn-O is used as the hydrogen sensor, the optimal working temperature is 180 DEG C, the response value is 112 when the hydrogen concentration is 1000 ppm, the response time is 1.29 s, and the recovery time is 147 s. When the hydrogen concentration range is 0.1-2000ppm, the hydrogen sensor has different responses to hydrogen with different concentrations, and the lowest hydrogen concentration is detected to be 0.1 ppm.

The application discloses a kind of photocatalyst and preparation method thereof, the photocatalyst is flower ball layer structure, composition includes SnS2, SnS, the molar ratio of SnS2 With SnS is 1-2.5:1.The preparation method of the photocatalyst, including the following steps: (1) tin tetrachloride pentahydrate, sulfur source is placed in first liquid, carries out first hydrothermal reaction, obtains SnS2;(2) to SnS2 Adding stannous chloride dihydrate and sulfur source, carries out second hydrothermal reaction, washes, obtains SnS2@SnS photocatalyst and dries.This application provides photocatalyst, can achieve the effect of excellent reduction performance.

The invention relates to a process for preparing a star copolymer of 1,3-diene and ethylene, the copolymer containing more than 50 mole percent ethylene units. The process comprises the polymerization of a monomeric mixture of 1,3-diene and ethylene in the presence of a catalytic system based on at least one neodymocene borohydride metallocene and an organomagnesium cocatalyst, followed by the reaction of tin tetrachloride with the polymerization reaction product, and then a chain-terminating reaction. The invention also relates to a star copolymer obtainable by the process according to the invention.

The invention discloses a process for producing titanium-zirconium-hafnium series metal through continuous reduction, which comprises the following steps: in an inert atmosphere, heating a reactor to a reaction temperature, adding metal magnesium, and then continuously adding tetrachloride at a constant high speed to carry out reduction reaction. In the reaction process, magnesium chloride melt is continuously or intermittently discharged, and metal magnesium is supplemented to maintain the reaction; meanwhile, the generated sponge titanium is continuously moved out and conveyed to a collector through a conveying device directly communicated with the reactor. The whole process of feeding, reacting, discharging and product moving-out is continuous, a traditional sequencing batch production mode is subverted, the titanium tetrachloride feeding speed can be stably kept at a high level (for example, the titanium tetrachloride feeding speed is larger than or equal to 1600 kg / h), the production efficiency is remarkably improved compared with a traditional process, meanwhile, stability and excellent product quality are guaranteed, the automation degree is high, and the production cost is low. And centralized recycling of reaction waste heat can be realized.

The invention discloses a preparation method of a 3D graphene-loaded tin oxide composite material. The preparation method comprises the following steps: preparing a precursor solution from graphene oxide, tin tetrachloride pentahydrate and ascorbic acid; dropwise adding a lauryl sodium sulfate solution into the precursor solution, and fully mixing to obtain a mixed solution; transferring the mixed solution into a glass bottle, and sealing and heating to promote the self-loading process of the solution; performing freeze thawing / 80 DEG C thermal reduction treatment on the preformed sample to form a preliminary composite material of tin oxide and graphene; repeatedly washing the sample subjected to thermal reduction by using ethanol to remove residual impurities, and then carrying out drying treatment; and carrying out annealing heat treatment on the dried sample in a nitrogen atmosphere to obtain the 3D graphene-loaded tin oxide composite material. The preparation method of the 3D graphene loaded tin oxide composite material provided by the invention is simpler in preparation process, lower in cost and suitable for large-scale industrial production.

A method for preparing a SnO2 hollow sphere / NiO cross-linked nanosheet composite-based gas sensor with high sensitivity for detecting triethylamine gas belongs to the field of thermoelectric materials technology. This invention aims to solve the problem of poor selectivity of SnO2 for triethylamine in existing methods. The method includes: 1. Injecting anhydrous tin tetrachloride liquid into anhydrous ethanol, followed by the sequential addition of distilled water and concentrated hydrochloric acid; 2. Preparing SnO2 hollow nanosphere powder; 3. Preparing a dispersion of SnO2 hollow nanospheres; 4. Preparing a nickel acetate solution; 5. Adding ammonia water to the nickel acetate solution; 6. Preparing SnO2 hollow nanosphere powder with Ni(OH)2 cross-linked nanosheets grown on its surface; 7. Preparing SnO2 hollow nanosphere powder with NiO cross-linked nanosheets grown on its surface; 8. Preparing the gas sensor. This invention is used for preparing a SnO2 hollow sphere / NiO cross-linked nanosheet composite-based gas sensor with high sensitivity for detecting triethylamine gas.

The utility model discloses a device for purifying crude zirconium tetrachloride, which comprises a tank body, the top of the tank body is fixedly connected with a tank cover through a bolt, the top of the tank cover is communicated with a zirconium tetrachloride exhaust pipeline, the lower part of one side of the tank body is communicated with an argon pipeline, and one side, far away from the argon pipeline, of the tank body is communicated with a hydrogen pipeline. The utility model relates to the technical field of zirconium tetrachloride purification, in particular to a device for purifying crude zirconium tetrachloride, which can be used for treating waste gas generated during purification through the matching of a tank body, a tank cover and a treatment device, and can be used for carrying out auxiliary heating and heat preservation on the tank body by utilizing waste heat of the waste gas because the temperature of the waste gas is higher when the waste gas is exhausted. The heat in the tank body is prevented from being directly and rapidly dissipated through the tank body, so that the energy-saving performance is improved, and external treatment equipment is not needed for waste gas treatment, so that the input of the equipment can be reduced, and the investment of economic cost is reduced.

The invention discloses a transparent ceramic target material for heat dissipation of a vehicle-mounted OLED (Organic Light Emitting Diode) and a preparation method of the transparent ceramic target material, and belongs to the technical field of ceramic target materials. The preparation method comprises the following steps: firstly, enabling aluminum powder to generate AIN nano powder under the action of nitrogen, then dispersing the AIN nano powder into a solvent, sequentially adding gallium nitrate, zinc nitrate and acetylacetone, and treating after reaction to obtain AlN-coated GZO nano powder; gallium nitrate and zinc nitrate are dispersed in a solvent, a complexing agent and magnesium nitrate hexahydrate are added for dispersion, polyethylene glycol is added for a reaction, GZO-MgO composite sol is obtained, AlN-coated GZO nanopowder and the GZO-MgO composite sol are mixed, yttrium nitrate, tin tetrachloride, a binder and an ammonium polyacrylate aqueous solution are added, the mixture is stirred uniformly, and the GZO-MgO nanopowder is obtained. After the pH value is adjusted, ball milling, degassing treatment and sintering are conducted, and the transparent ceramic target material for vehicle-mounted OLED heat dissipation is obtained. The ceramic target material provided by the invention has the characteristics of high light transmittance, high electric conductivity and high heat conductivity, and can effectively prolong the service life of an OLED device.

The application discloses a kind of carbon five petroleum resin for improving paint leveling and preparation method thereof, and specifically relates to petroleum resin technical field.The method comprises the following steps: refining carbon five petroleum resin, mixed with organic solvent under nitrogen protection and heated to carry out thermal polymerization;After cooling, polar modified monomer and composite catalyst are added, and catalytic polymerization and grafting reaction are carried out;Add alkaline terminator to terminate the reaction, and the finished product is obtained after washing, solvent removal and granulation.The composite catalyst is prepared by loading tin tetrachloride-phosphorus tributyl ester complex on activated clay.The application solves the problems of poor leveling, poor weather resistance, halogen residue and other problems of traditional resin through raw material refining, step-by-step polymerization and synergistic effect of polarity grafting.The obtained resin can significantly improve the leveling of paint, improve the gloss and weather resistance of coating film, has good compatibility and high stability, is suitable for various coating systems, and the process is environmentally friendly and easy to industrialize.

The invention discloses a carboxyl-functionalized metal organic framework material and preparation and application thereof in treatment of thorium-containing wastewater, and the method comprises the following steps: adding MIL-101-Cl and amino acid into an organic solvent, carrying out ultrasonic dispersion, adding triethylamine, and stirring; reacting at 100 DEG C, centrifuging, washing, and carrying out vacuum drying at 50-70 DEG C; the MIL-101-Cl is prepared by carrying out a reaction on MIL-101 powder, paraformaldehyde, tin tetrachloride and trimethylchlorosilane in anhydrous dichloromethane. The problems that in the prior art, the structure is disordered, stability is poor, selectivity is lost, and industrialization is difficult are solved. According to the invention, a carboxyl donor is grafted on the surface of chloromethylated MIL-101, and meanwhile, the increase of the carboxyl content obviously enhances the adsorption capacity of the material; due to the increase of the carboxyl density, the MIL-101-2COOH has more excellent Th (IV) adsorption selectivity and chemical stability.

The invention discloses a catalyst for synthesizing p-cumylphenol and a preparation method thereof. The catalyst comprises an active component A, a carrier B and a cocatalyst C. The active component A is one or more of aluminum trichloride, tin tetrachloride, zinc chloride, ferric chloride and boron trichloride. The carrier B is one or more of silica gel and aluminum oxide; the cocatalyst C is one or more of zinc oxide, copper oxide, magnesium oxide, zirconium dioxide, titanium dioxide and boric oxide, the selectivity of the catalyst is high, and p-cumylphenol can be efficiently prepared.

The invention belongs to the technical field of fluorine chemical industry, and particularly relates to a preparation method of cis-1, 1, 1, 4, 4, 4-hexafluoro-2-butene. Comprising the following steps: I, under an illumination condition, enabling 3, 3, 3-trifluoropropene to react with carbon tetrachloride, optionally in the presence of a first catalyst, so as to obtain 1, 1, 1, 3-tetrachloro-4, 4, 4-trifluorobutane; and II, the obtained 1, 1, 1, 3-tetrachloro-4, 4, 4-trifluorobutane and hydrogen fluoride are subjected to a reaction under the action of a second catalyst, and cis-1, 1, 1, 4, 4, 4-hexafluoro-2-butene is obtained. According to the method, in the first step, the addition reaction is driven by illumination, the production cost can be greatly reduced by a photocatalysis mode, and the reaction efficiency can be improved by matching with a special catalyst; the fluorination reaction in the second step is matched with an exclusive catalyst, so that the conversion rate of reactants and the selectivity of a target product can be effectively improved, and the high efficiency of the whole preparation process is guaranteed.

The invention belongs to the technical field of quartz glass preparation, and discloses a quartz glass CVD synthesis method based on secondary heating and a CVD deposition furnace, the synthesis method comprises the following steps: step 1, hearth preheating; step 2, preheating the raw materials: evaporating the rectified silicon tetrachloride liquid into a gaseous state, then controlling the flow rate through a mass flow meter, conveying the gaseous silicon tetrachloride liquid to a box type heater from a connecting pipeline, and carrying out secondary heating to 300-400 DEG C; step 3, deposition reaction: when the temperature in the deposition furnace reaches 1500-1700 DEG C, introducing the silicon tetrachloride subjected to secondary heating into a combustor, reacting with oxyhydrogen flame which is burning on a deposition target surface, starting deposition at the moment, rotating a lifting device to drive the deposition target surface to descend, setting the initial flow of the silicon tetrachloride to be 70-80g / min, and then increasing the initial flow to 120-130g / min; and step 4, ending deposition. The secondary heating temperature of silicon tetrachloride is set to 300-400 DEG C, so that the reacted product can reach a molten state more quickly and form a glassy state more quickly, the forming period is shortened, and the synthesis efficiency is improved.

The application discloses a method for recovering tin from tellurium precipitation post-liquid, based on the characteristics of tin tetrachloride being easy to hydrolyze, a two-step method of 'neutralization and impurity removal-hydrolysis and tin precipitation' is adopted to realize efficient extraction of tin in the tellurium precipitation post-liquid, first, the pH value is adjusted for stirring and impurity removal, then heating hydrolysis and tin precipitation are carried out, the direct recovery rate of tin is above 95%, the tin content of the product is also as high as above 40%, the lead content is below 0.5%, and the chlorine content is below 2%, compared with the existing conventional neutralization and precipitation method, the alkali liquor used by the application is less, and the impurity rate in the tin material obtained is lower.

This invention relates to the field of non-ferrous metal metallurgy, and particularly to a zirconium tetrachloride purification system and method. The zirconium tetrachloride purification system includes a purification furnace; a vacuum collection tank connected to the furnace via a first pipeline, on which an exhaust valve is installed, and a discharge port at the bottom of the vacuum collection tank; a circulating cooling water system connected to the vacuum collection tank; a filter connected to the vacuum collection tank via a second pipeline, on which a first pneumatic valve is installed; a tail gas spray tower connected to the filter via a third pipeline; and a control system electrically connected to the exhaust valve and the first pneumatic valve. This zirconium tetrachloride purification system and method solves the problems of low control accuracy and inherent dangers in existing zirconium tetrachloride purification methods.

The application belongs to the technical field of quartz glass preparation, and discloses a quartz glass CVD synthesis method based on secondary heating and a CVD deposition furnace, the synthesis method comprising the following steps: step 1, preheating of the furnace chamber; step 2, preheating of raw materials: after rectification, the liquid silicon tetrachloride is evaporated into a gaseous state, then the flow is controlled through a mass flow meter and the gaseous state silicon tetrachloride is transported to a chamber heater through a connecting pipeline and is heated to 300-400 DEG C; step 3, deposition reaction: when the temperature in the deposition furnace reaches 1500-1700 DEG C, the secondary-heated silicon tetrachloride is introduced into a burner and reacts with the burning hydrogen-oxygen flame on the deposition target surface, at this time, deposition starts, and the deposition target surface starts to descend under the driving of a rotary lifting device, the initial flow of silicon tetrachloride is set to 70-80 g / min, and then is increased to 120-130 g / min; step 4, deposition ending. The secondary-heating temperature of silicon tetrachloride is set to 300-400 DEG C, so that the product after reaction can reach a molten state more quickly, form a glass state more quickly, speed up the forming cycle, and improve the synthesis efficiency.

A method for producing an electrothermal film, its precursor solution, and related heating devices. The solution consists of tin tetrachloride (SnCl₄), titanium tetrachloride (TiCl₄), zinc oxide (ZnO)

The application belongs to the technical field of sponge zirconium production and relates to a method for preparing and producing refined zirconium tetrachloride, which comprises the following steps: S1, boiling chlorination, a carbon powder filtering settler is connected to the gas outlet of a chlorination furnace, the gas outlet of the carbon powder filtering settler is connected to a hydrogen charging iron remover, the cavity temperature in the carbon powder filtering settler and the hydrogen charging iron remover is respectively controlled to be 400±10 DEG C, and hydrogen is introduced into the hydrogen charging iron remover; S2, condensation, the gas outlet of the hydrogen charging iron remover is sequentially connected with a first-stage condenser, a second-stage condenser and a third-stage condenser, the cavity temperature in the first-stage condenser is controlled to be 280±10 DEG C, the cavity temperature in the second-stage condenser is controlled to be 240±10 DEG C, the cavity temperature in the third-stage condenser is controlled to be 220±10 DEG C, and the condensed materials at the outlets of the condensers are all refined zirconium tetrachloride. The method can completely cancel the purification process of the traditional refined zirconium tetrachloride preparation process, and greatly saves energy, manpower and other costs.

This invention provides a heterogeneous unsupported tin-based catalyst, its preparation method, and its application, belonging to the field of tin-based catalyst materials. The preparation method of the heterogeneous unsupported tin-based catalyst provided by this invention includes the following steps: first, tin tetrachloride and an aqueous solution of an organic alcohol are mixed, followed by the addition of a soluble aluminum salt, and then the mixture is allowed to stand for a first time to obtain a mixed solution; second, the mixed solution is mixed with ammonia water, and the mixture is allowed to stand for a second time, followed by high-temperature hydrolysis and drying to obtain the heterogeneous unsupported tin-based catalyst; the temperatures of the first and second standing periods are both -12 to -20°C. The heterogeneous unsupported tin-based catalyst prepared by the method provided by this invention is stable (it will not transform into tin dioxide), and can convert glucose to lactic acid with a yield of over 90%. Furthermore, the catalyst can achieve 93% of its initial efficiency even after 10 repetitions, exhibiting good stability and catalytic effect.

The invention discloses a preparation method of a Pd NPs-ZrO2 / C composite material derived from MOFs (Metal-Organic Frameworks) and application of the Pd NPs-ZrO2 / C composite material. The preparation method comprises the following steps: adding palladium chloride, zirconium tetrachloride and 2-aminoterephthalic acid into N, N-dimethylformamide, adding glacial acetic acid, carrying out ultrasonic treatment to obtain a uniform solution, reacting in an oil bath pan, cooling after the reaction is finished, centrifuging, washing and drying to obtain a precursor Pd-coated UiO-66-NH2; and carrying out pyrolysis in an inert atmosphere to obtain the Pd NPs-ZrO2 / C composite material. According to the material, palladium exists in the form of nanoparticles, the utilization rate of active metal is greatly increased, and a carbon matrix derived from the metal organic framework material UiO-66-NH2 has very high specific surface area and porosity and can effectively promote mass transfer and exposure of active sites. The catalyst shows good catalytic performance in toluene hydrogenation reaction, and can be reused after washing and drying treatment.

The present application relates to the technical field of glass preparation, in particular to a bendable energy-saving glass for cold chain and a preparation method thereof. The glass comprises an ultrathin sodium-calcium glass substrate, and a silicon nitride barrier layer, a zinc oxide transition layer, a gallium-doped zinc oxide layer, a silver layer, a zinc oxide cover layer and a fluorine-doped tin oxide protective layer arranged on the substrate in sequence. The gallium-doped zinc oxide layer has a gallium-rich band on the side adjacent to the silver layer and contains tin-oxygen-gallium composite pinning sites. In the preparation, after forming the zinc oxide skeleton, trimethyl gallium post-pulse treatment is performed, and then anhydrous tin tetrachloride short pulse, hydrogen reduction stop, dry oxygen short pulse and water vapor sub-pulse treatment are performed in sequence, followed by deposition of the silver layer and the protective layer. The present application can improve the continuous film formation and interface stability of the silver layer, reduce the risk of silver layer migration, cracking and performance attenuation in cold bending and low-temperature high-humidity cycles, and is suitable for arc-shaped cold chain display cabinet doors.

The invention discloses a self-assembled tin oxide 3D graphene aerogel nano composite material and application. A preparation method of the self-assembled tin oxide 3D graphene aerogel nano composite material comprises the following steps: preparing pure nano tin oxide particles through a hydrothermal method; the preparation method comprises the following steps: carrying out self-assembly on nano tin oxide particles and 3D graphene aerogel with larger buffer space and specific surface area, and carrying out freezing and thermal reduction treatment to form a tin oxide / 3D graphene aerogel composite material; wherein the solution preparation proportion in the hydrothermal method is as follows: the proportion of stannic chloride pentahydrate SnCl4. 5H2O is 70 to 85 weight percent, and the proportion of sodium hydroxide NaOH is 15 to 30 weight percent. According to the self-assembled tin oxide 3D graphene aerogel nano composite material and application, the tin oxide / 3D graphene loaded tin oxide composite material can be prepared under mild and simple conditions, the preparation process is simple, safe and reliable, the cost is low, and large-scale industrial production and application are easy.

The invention belongs to the technical field of environmental catalysis and air pollution treatment, and relates to a chlorine-resistant high-activity cerium-iron-tin oxide catalyst as well as a preparation method and application thereof. The preparation method comprises the following steps: step 1, dispersing ferric nitrate, cerous nitrate and urea in deionized water to obtain a mixed solution; 2, carrying out a hydrothermal reaction on the mixed solution obtained in the step 1 at 140-200 DEG C, and collecting a product; 3, drying and grinding the product in the step 2, and collecting the product; step 4, calcining the product obtained in the step 3 at 450-550 DEG C; and 5, putting the calcined material into a pre-cooled tin tetrachloride solution for reaction, cooling, filtering, washing, drying, and collecting to obtain the catalyst. The cerium-iron-tin oxide catalyst obtained by the invention can realize chlorine-resistant high-activity catalytic oxidation for chlorine-containing volatile organic compounds.

The utility model discloses a zirconium tetrachloride purification furnace cooler, which relates to the technical field of zirconium tetrachloride production, and comprises a sorting assembly, the sorting assembly comprises a hanging barrel, a condenser, an auxiliary heating pipe, a gas collecting chamber, an exhaust valve and a cooling pipeline, the condenser is sleeved outside the hanging barrel, the auxiliary heating pipe is inserted in the middle of the hanging barrel, and the air collecting chamber is sleeved outside the auxiliary heating pipe. The two sides of the hanging barrel are communicated with air collecting chambers, exhaust valves are arranged at the top ends of the air collecting chambers, cooling pipelines are communicated between the adjacent exhaust valves, and pipelines used for introducing air and cooling water for cooling are laid on the inner side of the condenser. The zirconium tetrachloride purification furnace cooler provided by the utility model has the characteristics that low-boiling-point impurities such as silicon tetrachloride, titanium tetrachloride and aluminum trichloride are enriched in the gas collection chamber and are intensively and automatically discharged, so that the loss amount of zirconium tetrachloride during exhaust is reduced, the impurity removal effect and the purity of refined zirconium tetrachloride are improved, the recovery rate of zirconium is improved, and the production cost is reduced. The working time consumption is short; the production efficiency is higher.

The invention discloses a preparation method and application of an organic silicon modified aluminum-zirconium / titanium bimetallic composite fluorine removal agent (CSAZ / CSAT), and belongs to the technical field of water treatment. Zirconium tetrachloride or diluted titanium tetrachloride is compounded with aluminum chloride to construct a bimetallic framework. Meanwhile, vinyltriethoxysilane (VTES) is introduced as an organic modifier, and heterogeneous copolymerization is carried out on an organic silicon hydrolysate and metal hydroxyl by controlling the dripping rate and the reaction temperature. According to the fluorine removal agent, by utilizing the bridging effect of organic silicon and the synergistic effect of double metals, the adsorption, complexation and net capture capacities on fluorine ions are remarkably enhanced. Experiments show that when the molar ratio of Al to Zr is 9: 1 (CSAZ) or the molar ratio of Al to Ti is 14: 1 (CSAT), the defluorination effect is optimal. When the agent is applied, the pH value does not need to be adjusted, a coagulant aid does not need to be added, efficient removal of fluorine ions can be achieved only through a single agent, the agent has the advantages of being low in dosage, neutral in effluent pH value and the like, and the industrial problems that a traditional fluorine removal process is long in process, large in acid and alkali consumption and difficult in sludge treatment are effectively solved.

The utility model discloses a fine zirconium tetrachloride collecting device which comprises a furnace body, the top of the furnace body is fixedly connected with a cover body through bolts, a collecting mechanism is arranged below the furnace body, a quantifying device is arranged on the upper portion in the furnace body, and the quantifying device comprises a box body fixedly connected to the inner wall of the cover body; the two rotating plates are rotationally connected to the inner wall of the box body through pin shafts, and the sides, close to each other, of the rotating plates are attached to each other; and the material receiving plate is arranged above the rotating plate. The utility model relates to the technical field of fine zirconium tetrachloride collection, through the cooperation among a box body, a rotating plate and a weight sensor, when coarse zirconium tetrachloride needs to be put into a furnace body, a material control part is started, the coarse zirconium tetrachloride falls to the top of a material receiving plate, and then the weight sensor weighs the coarse zirconium tetrachloride and transmits weighing information to a controller, so that the coarse zirconium tetrachloride can be put into the furnace body. The controller controls the telescopic rod, the telescopic rod drives the two rotating plates to rotate, and a gap is formed between the two rotating plates.

The invention relates to the technical field of lithium air battery electrolyte, in particular to electrolyte for a lithium air battery and the lithium air battery. The electrolyte for the lithium air battery comprises a functional additive, a lithium salt and a solvent, the functional additive comprises tin tetrachloride and 1, 8-diiodo-octane, the concentration of the tin tetrachloride in the electrolyte is 0.01-0.1 mol / L, and the concentration of the 1, 8-diiodo-octane in the electrolyte is 0.05-0.2 mol / L. The electrolyte provided by the invention synchronously realizes dual functions of reducing overpotential by a redox medium and inhibiting dendritic crystal growth by constructing an artificial SEI film in situ on a negative electrode in a battery cycle process, so that long-acting protection on the lithium negative electrode is achieved, the long cycle stability of the battery is remarkably improved, and the electrolyte has very high practical value.