126 results about "Crystal transformation" patented technology

The invention discloses a preparation method of a high-specific-power manganese dioxide-carbon fluoride battery positive pole piece. The preparation method comprises the following steps: (1) carrying out high-temperature heat treatment on electrolytic manganese dioxide to finish crystal transformation of the electrolytic manganese dioxide; (2) carrying out ball milling on the manganese dioxide, the carbon fluoride and the conductive agent which are subjected to heat treatment to obtain a composite substance of the manganese dioxide, the carbon fluoride and the conductive agent; (3) stirring and mixing the composite substance with a binder, a surfactant and deionized water to form manganese dioxide-carbon fluoride battery positive electrode slurry; and (4) coating the prepared positive electrode slurry on an aluminum mesh with a certain surface density in an extrusion or roller coating manner, and carrying out drying and rolling processes to obtain the high-loading-amount manganese dioxide-carbon fluoride battery positive electrode plate with a certain compaction density and surface density. The prepared positive pole piece has relatively high conductivity and energy density, and the high-magnification application scene of the lithium manganese dioxide-carbon fluoride battery is further widened.

The invention discloses a method for preparing fine-grain copper and copper alloy through pulsed magnetic field and rare earth adding composite regulation and control, and belongs to the technical field of copper and copper alloy material preparation. Graphite mold casting is adopted in the method, and the method comprises the specific steps that electrolytic copper with the purity larger than or equal to 99.95 wt% or a copper alloy with specific components is prepared as a matrix raw material; after smelting, adding pure lanthanum blocks and uniformly stirring; after the melt is poured into a preheating mold, a pulsed magnetic field is applied immediately for treatment, and the parameters of the magnetic field are as follows: the pulse voltage is 180-250 V, the frequency is 4.5-6.5 Hz, and the duration time is 15-20 minutes. According to the method, the heterogeneous nucleation effect of rare earth lanthanum is combined with the melt forced convection and dendritic crystal crushing effect caused by the pulsed magnetic field to synergistically refine a solidification structure and promote columnar crystal orientation equiaxed crystal transformation, so that a cast ingot with fine crystal grains is directly obtained in the casting stage, and the possibility is provided for simplifying the subsequent processing technology.

The invention relates to the technical field of battery materials, in particular to a Br-doped Y / Zr-based sulfide solid electrolyte and a preparation method and application thereof.The chemical formula of the Br-doped Y / Zr-based sulfide solid electrolyte is shown as the formula (I): Lia (YxZr1-x) bClcBrySd, wherein 0.5 < = (a + b) / (c + d) < = 1; gt; 0, bgt; 0, cgt; 0, dgt; 0; 0 lt; xlt; 1; 0 lt; and y < = c. According to the invention, by introducing Br <->, the lattice volume is expanded, the interstitial space in the crystal is improved, and the transmission path of Li < + > is expanded, so that the Li < + > migration energy barrier is reduced, and the conductivity of the solid electrolyte can be improved to a certain extent; a synergistic effect can be achieved through Y / Zr, so that an originally compact lattice framework is slightly expanded, and a smoother conduction path is constructed for ions Li < + >; on the other hand, crystal transformation of Zr can be inhibited through Y, the interface stability is improved, and finally the solid electrolyte has high conductivity and high interface stability.

The invention discloses a method for precipitating iron through ultrasonic enhanced oxidation, and belongs to the technical field of hydrometallurgy. The method comprises the following steps: performing ultrasonic treatment on a mixed system of an iron-containing zinc sulfate solution and an oxidizing agent under an acidic condition, efficiently catalyzing ferrous ions (Fe < 2 + >) to be oxidized into ferric ions (Fe < 3 + >) by utilizing an ultrasonic cavitation effect, and promoting the ferric ions to be stably precipitated in a goethite (alpha-FeOOH) form; after the reaction is completed, carrying out solid-liquid separation to obtain a low-iron zinc sulfate solution and goethite slag; compared with a traditional jarosite method and a hematite method, the method has the advantages that exogenous cations such as potassium and sodium do not need to be introduced, a high-temperature and high-pressure environment is not needed, and the oxidation efficiency can be remarkably improved and the goethite crystal form conversion can be regulated and controlled only based on the ultrasonic cavitation effect, so that the consumption of an oxidizing agent and the zinc content in the slag are effectively reduced; meanwhile, the iron grade and the filtering performance of an iron precipitation product are improved; the method is suitable for various oxidants, is high in process adaptability, has the advantages of high efficiency, greenness and economy, and has wide popularization and application prospects in the field of zinc smelting.

The utility model relates to the technical field of gas heating, and discloses a heat source structure and a fluidization crystal transformation device. The heat source structure comprises a pipeline which is provided with a channel penetrating in the axial direction of the pipeline, and the channel is used for gas to pass through; the heating assembly is used for heating the pipeline; wherein the channel is internally provided with filler, the filler is provided with a gap, and gas can be discharged from the gas outlet of the channel through the gap. The fluidization crystal transformation device comprises a furnace body and a heat source structure. According to the technical scheme, the technical problem of high energy consumption of a device for preparing anhydrous iron phosphate in the prior art can be solved.

This invention discloses a method for precipitation separation and ceramic solidification of divalent strontium and tetravalent uranium in radioactive waste liquid, relating to the field of radioactive waste liquid treatment and disposal. U in high-level radioactive waste liquid is in the form of hexavalent uranyl (UO2). 2+ U exists in the form of hydrogenation catalytic reduction, and the present invention uses hydrogenation catalytic reduction to prepare U. 4+ Sr 2+ and U 4+ ionic radius and Ln 3+ Due to the significant differences, CePO4·0.667H2O cerium phosphate, which has a stronger nuclide-containing capacity, was selected as the co-precipitation enrichment agent for Sr. 2+ and U 4+ Separation precipitant. Inexpensive raw materials such as UO2(NO3)2·6H2O, Sr(C2H3O2)2, NH4H2PO4, and Ce(NO3)3·6H2O are selected. By controlling the Sr... 2+ :U 4+ Ion ratio, reaction time, temperature, pH, and preparation of well-developed Sr crystals 2+ / U 4+ The precipitate of cerium phosphate solid solution with high solid content is avoided by using spark plasma solid-state sintering technology to prevent grain agglomeration and adhesion during high-temperature dehydration and crystal transformation of cerium phosphate. Furthermore, pressure sintering can promote further growth of nanocrystals and promote U... 4+ and Sr 2+ Homogenization within the monazite ceramic solidified body enables a one-step preparation of monazite ceramic solidified body from a lanthanite solid solution.

The utility model relates to a titanium dioxide zero-carbon suspension rapid crystal transformation system which comprises a desulfurizing tower, an induced draft fan, a bag collector, a scattering dryer, a high-temperature fan, a first cyclone cylinder, a suspension calcining furnace and a second cyclone cylinder. According to the utility model, titanium dioxide is produced by adopting a suspension calcination technology, green electricity is adopted as electric energy, and a byproduct carbon dioxide is recycled, so that zero-carbon production of products is facilitated, and carbon neutralization in the titanium dioxide industry is promoted.

The invention belongs to the technical field of preparation of adsorption materials, and relates to a 13X molecular sieve adsorbent for removing CO2 as well as a preparation method and application of the 13X molecular sieve adsorbent. The preparation method comprises the following steps: firstly, soaking clay powder in an acid solution, and carrying out filter pressing to obtain a clay filter cake; then, mixing the high-silica-alumina-ratio 13X molecular sieve, the clay filter cake and a pore-forming agent, granulating and forming, and drying and roasting to obtain the spherical high-silica-alumina-ratio 13X molecular sieve adsorbent with the particle size of 1.6-2.4 mm, and finally, treating the 13X molecular sieve adsorbent with the high silica-alumina ratio in a caustic alkali solution, washing, drying and roasting to obtain the efficient 13X molecular sieve adsorbent for removing CO2. According to the method, one-step aluminizing-directional crystal transformation is realized, and the prepared 13X molecular sieve adsorbent has higher CO2 adsorption capacity and is suitable for efficient removal of trace CO2 in air separation.

The invention discloses a bird nest type hydrogenation protective agent for a coal-to-oil system as well as a preparation method and application of the bird nest type hydrogenation protective agent, and belongs to the technical field of catalyst protection. The preparation method of the protective agent comprises the following steps: kneading pseudo-boehmite, a binder and a special molecular sieve, then adding an acid solution, polyvinyl alcohol and glycerol, and carrying out wet kneading to obtain mud; after wet kneading is finished, sequentially carrying out vacuum pugging, aging, extrusion molding by adopting a bird nest type mold, pelletizing and roasting to obtain a protective agent carrier; and loading an active metal component on the obtained protective agent carrier, and sintering to obtain the protective agent. According to the protective agent, the pseudo-boehmite with high crystallinity and high pore volume and the special molecular sieve are cooperatively used, and through shaping and roasting crystal transformation, the protective agent has the advantages of high radial strength, high water absorption capacity, high polar oxide adsorption capacity and high deoxidization capacity, and oxygen-containing compounds in coal-to-oil heavy oil can be effectively removed; the service life of the main catalyst is prolonged.

The application provides a method for preparing high-iron-phosphorus-ratio iron phosphate in batches at low cost, and the steps are as follows: S1. reacting a ferrous sulfate solution, a phosphorus salt solution and hydrogen peroxide to obtain amorphous iron phosphate; S2. filtering and washing the amorphous iron phosphate; S3. adding pure water to the filtered cake of the washed amorphous iron phosphate, stirring, heating, adding a crystal transformation promoter after keeping warm, and reacting to obtain iron phosphate dihydrate slurry, and reserving part of the iron phosphate dihydrate slurry; S4. squeezing, drying and calcining the remaining iron phosphate dihydrate slurry; S5. repeating steps S1-S4 in batches; if it is the first batch reaction, the crystal transformation promoter is phosphoric acid, and if it is not the first batch reaction, the crystal transformation promoter is a mixture of hydrogen peroxide and crystal nuclei prepared from the iron phosphate dihydrate slurry reserved in the last batch. The method can greatly save the preparation cost of iron phosphate, and the iron-phosphorus ratio of the prepared iron phosphate is above 0.99.

The invention provides a candesartan cilexetil capsule and a preparation method thereof, and the candesartan cilexetil capsule is characterized in that each capsule contains candesartan cilexetil, lactose, corn starch, hydroxypropyl cellulose, carboxymethyl cellulose calcium, polyethylene glycol 8000 and magnesium stearate. According to the candesartan cilexetil capsule provided by the invention, the problem of stability of candesartan cilexetil is solved, the possibility of crystal transformation of common tablets in a tabletting process is reduced, and the characteristic dissolution curve of a final product is similar to that of a reference preparation; the preparation method is simple in process route, the fluidized bed one-step granulation method enables the loss to be less, the product yield is higher, and the industrial mass production cost is reduced.

The invention relates to a preparation method of febuxostat tablets, which comprises the following steps: adding febuxostat, a filler and an adhesive into a wet granulation pot, and premixing; dissolving the solubilizer with absolute ethyl alcohol, and then adding purified water to form a solution; adding the solution formed in the step 2 into the premixed material, and granulating to obtain an intermediate; putting the intermediate into an oscillating granulator for wet granulation; drying the wet granules by using a fluidized bed; carrying out dry granulation on the dried granules by using a 24-mesh screen; placing the dried whole granules in a three-dimensional mixer, adding a corresponding amount of disintegrating agent and lubricant according to the yield, and carrying out total mixing to obtain a semi-finished product; and tabletting and coating the semi-finished product to finally obtain a finished product. The solubilizer is polyoxyethylene hydrogenated castor oil; the febuxostat tablet solves the problems of possible crystal transformation and poor dissolution rate in the preparation process of the existing febuxostat tablet through the steps.

This application provides a method for preparing nano-sized orthogonal iron phosphate and a method for preparing lithium iron phosphate cathode materials, relating to the field of electrode materials. The method for preparing nano-sized orthogonal iron phosphate includes: mixing a first ferrous salt solution with a first phosphorus source solution and an oxidant to perform a co-precipitation reaction to obtain amorphous iron phosphate; mixing the amorphous iron phosphate with water to form a slurry, controlling the slurry particle size, and then adding a crystal transformation aid to the slurry, followed by aging under stirring conditions at a pH of 0.8–1.5 to obtain nano-sized orthogonal iron phosphate; wherein the crystal transformation aid includes a second ferrous salt and a second phosphorus source. The iron phosphate prepared in this application is single-crystal nano-sized orthogonal iron phosphate, reducing the grinding pressure at the lithium iron phosphate end. Simultaneously, its unique octahedral structure is more stable than monoclinic iron phosphate produced by conventional processes, with fewer crystal defects and higher lattice integrity, effectively avoiding the generation of magnetic foreign matter during sintering and contributing to the performance of lithium iron phosphate materials.

The application provides a method for preparing offretite by using natural analcime as a raw material, the offretite and application thereof, and relates to the technical field of zeolite materials. The natural analcime is mixed with an aqueous solution of an ammonium salt to perform ion exchange, so that ammonium-type analcime is obtained; the ammonium-type analcime is calcined to obtain hydrogen-type analcime; and the hydrogen-type analcime is mixed with sodium hydroxide, potassium hydroxide and water to perform hydrothermal reaction, so that the offretite is obtained. The natural analcime is a kind of zeolite mineral widely existing in nature, and the application uses the natural analcime as a raw material, so that the application has the remarkable advantages of low price and environmental friendliness; and the traditional hydrothermal method needs 7-10 days to synthesize offretite with high crystallinity, while the application uses the natural analcime as a raw material to perform crystal transformation synthesis of offretite, so that offretite with high crystallinity can be obtained in 0.5-2 days. Moreover, the offretite provided by the application can efficiently adsorb heavy metal ions in wastewater.

The present application relates to steel and non-ferrous smelting slag comprehensive recovery and iron-making resource utilization comprehensive utilization technical field, disclose a kind of copper slag efficient iron-making method based on magnetic separation pretreatment, comprising: to molten iron-silicate base waste slag input by calcium carbide, sodium fluoride and phosphorus component consisting of conditioning agent, using sodium fluoride to build liquid diffusion field exposure reduction interface, induce calcium carbide and iron silicate in situ reduction to generate metal iron core;Heat treatment promotes iron core polymerization growth;Gradient cooling, using phosphorus component induces silicate matrix crystal transformation to generate expansion stress and break matrix;Grinding powder and weak magnetic separation, extract magnetic enrichment product, the present application breaks iron-oxygen-silicon chemical bond, realizes the conversion of combined state iron to independent metal state, achieves iron and gangue phase decoupling, using endogenous stress induction self-pulverization, reduce grinding energy consumption, output high-grade iron powder and simultaneously remove sulfur zinc impurities.

The invention belongs to the technical field of medicinal chemistry, and particularly relates to an aripiprazole-trimesic acid salt form and a preparation method thereof. According to the salt form, a basic unit is composed of tetramolecular aripiprazole and tetramolecular trimesic acid. The salt form obtained by the invention has relatively high solubility performance and physical stability; the obtained salt form is not easy to generate crystal transformation or degradation, and shows excellent storage stability and process adaptability. Meanwhile, the preparation method of the salt form is simple in process and mild in condition, and has a remarkable industrial application prospect.

The invention discloses a preparation method of an abesilib III crystal form, which comprises the following steps of: 1, adding an abesilib crude product into DMSO (Dimethylsulfoxide), heating and dissolving, cooling after the system is dissolved to be clear, then adding isopropyl acetate, stirring, cooling and crystallizing, and then stirring, carrying out suction filtration and vacuum drying to obtain the abesilib III crystal form; or the method II comprises the following steps: adding the crude product of abelsilib into isopropyl acetate, stirring for crystal transformation, then cooling for crystallization, stirring, carrying out suction filtration, and carrying out vacuum drying to obtain the crystal form III of abelsilib. According to the preparation method, DMSO is adopted as a solvent, isopropyl acetate is adopted as a crystallization solvent, or isopropyl acetate is adopted as a crystal transformation solvent, the prepared abelsilib III crystal form is good in quality and high in yield, the process is simple, the requirement for equipment is low, the production period is short, the production cost is effectively reduced, and industrial mass production is easy to achieve.

The invention provides an environment-friendly disperse dye and a preparation method thereof. The preparation method comprises the following steps: a pretreatment step: refining 3, 4-dichlorophenyl thiourea by using an organic solvent to obtain refined 3, 4-dichlorophenyl thiourea; a closed loop step: under an acidic condition, the refined 3, 4-dichlorophenyl thiourea is subjected to closed loop to obtain a thiazole mixed slurry, and the thiazole mixed slurry comprises 2-amino-5, 6-dichlorobenzothiazole and 2-amino-6, 7-dichlorobenzothiazole; a diazotization step: under an acidic condition, carrying out a diazotization reaction on the thiazole mixed slurry and a diazotization reagent to obtain a diazotization liquid; and a coupling step: carrying out a coupling reaction on the diazonium liquid and an esterification reagent, and carrying out crystal transformation to obtain the environment-friendly disperse dye. The environment-friendly disperse dye disclosed by the invention is qualified in environment-friendly index, high in yield and purity and suitable for mass production.

The present application belongs to the technical field of crystal form of drug molecules, and particularly relates to a new crystal form of 5-HT1F receptor agonist, i.e. hemisuccinate lasmiditan. The crystal form of hemisuccinate lasmiditan provided by the present application has characteristic peaks at 4.95±0.2°, 15.83±0.2°, 16.38±0.2°, 18.53±0.2°, 20.01±0.2° and 26.11±0.2° in an X-ray diffraction spectrum expressed in 2θ using Cu-Kα radiation. The obtained crystal form has good stability, does not have crystal transformation phenomenon, is suitable for long-term storage of drug preparations, has high solubility and bioavailability, provides a new option for drug preparations, has a simple preparation process, good repeatability and is suitable for industrialized production.

The application discloses a preparation method of battery-grade iron phosphate, which comprises the following steps: (1) preparing iron hydroxide powder and phosphoric acid; (2) diluting the phosphoric acid into a phosphoric acid solution by using deionized water, and then stirring the iron hydroxide and the phosphoric acid solution in a reactor; (3) after sufficient stirring, a catalyst is added, and a dispersing agent and a crystal transformation inducer are added within 30-40 minutes after the reaction starts, and the reaction is heated; (4) after the heating reaction is completed, the precipitate is separated out, and then the separated precipitate is washed and dried, and after drying, the precipitate is crushed and screened, so as to obtain the prepared iron phosphate. The preparation method is simple and easy to implement, does not need a large number of equipment and a complex technological process, can be used for large-scale production, has good economic benefits, and can meet the use requirements in the field of new energy batteries, and the prepared product is stable in quality, excellent in quality, and can be prepared in a short time.

The invention relates to the technical field of preparation of battery materials, and discloses an iron phosphate material, lithium iron phosphate and a preparation method thereof.The preparation method of the iron phosphate material comprises the steps that an intermediate is obtained, specifically, an iron phosphate raw material, an oxygen-containing oxide, a pH regulator and an acid-containing base solution are mixed for a precipitation crystal transformation coupling reaction, and a mono-like intermediate is obtained; and drying and sintering: drying and sintering the mono-like intermediate to obtain the iron phosphate material. When the iron phosphate material with the specific structure is used as a raw material to prepare the lithium iron phosphate, the high-compaction and high-capacity lithium iron phosphate can be obtained under the condition of one-time sintering, so that the subsequent lithium iron phosphate preparation process is higher in stability and lower in cost.

The application discloses a method for stabilizing the particle size of micro-powder medicine, and belongs to the technical field of medicine, which solves the problems that the surface of medicine is extremely easy to be amorphous after airflow pulverization, and the particle size increases due to particle aggregation in the amorphous-crystal transformation process. The method for stabilizing the particle size of micro-powder medicine comprises the following steps: suspending the micro-powder medicine and a lubricant in a temperature and humidity controlled airflow, and the micro-powder medicine is subjected to amorphous-crystal transformation in the suspended airflow, so that the particle size of the medicine is stabilized. The micro-powder medicine and the lubricant are suspended in the cyclone with controlled temperature and humidity, and the amorphous-crystal transformation process is completed. Since the particles continuously rotate in the cyclone, the micro-powder medicine cannot be aggregated with adjacent micro-powder medicine, so that the particle size increase caused by the amorphous-crystal transformation after airflow pulverization is avoided. The method can also reduce the medicine wall sticking phenomenon and improve the yield.

The invention relates to the technical field of firework cylinders, in particular to a firework mold pressing cylinder based on cassava flour pregelatinization and a preparation method thereof, and the mold pressing cylinder is prepared from the following raw materials in parts by weight: a framework material compounded by crystal transformation method II type anhydrous gypsum and calcium carbonate stone powder, pregelatinized cassava flour, wood fibers, stearic acid and a proper amount of water. The tapioca flour is pre-gelatinized by warm water at 40-60 DEG C, and the pre-gelatinization degree is greater than or equal to 80 The crystal transformation method II type anhydrous gypsum is prepared from ardealite through a low-temperature crystal transformation method. The preparation method comprises the following steps: pre-gelatinizing the tapioca flour, pulping, mixing with other dry blends and hot water, and finally carrying out high-temperature compression molding. Through the synergistic effect of the pre-gelatinized tapioca flour and the crystal transformation method gypsum, the dry basis dosage of the tapioca flour is remarkably reduced, meanwhile, the compressive strength and the falling resistance of the mold pressing barrel are greatly improved, the multiple purposes of reducing the cost, improving the performance and absorbing industrial solid waste phosphogypsum are achieved, the product quality is stable, and the mold pressing barrel is suitable for industrial production.

The invention provides a toleburtinib crystal form and amorphous form and a preparation method and application thereof. The toleburtinib crystal form at least has the following advantages that stability is good, hygroscopicity is low, particle size distribution is uniform, solubility meets the medicinal requirement, stable storage can be achieved, crystal transformation of medicine in the development process and storage process is avoided, the preparation method is reliable, and the toleburtinib crystal form is suitable for industrial production. The method has great development value. The toleburtinib amorphous form provided by the invention still has good placement stability and acceptable hygroscopicity while having better solubility than that of the toleburtinib in a crystalline state, and has a very high medicinal value.

The invention discloses a preparation method of a CHA type molecular sieve, and belongs to the technical field of inorganic chemical synthesis. The CHA type molecular sieve is a mixture formed by combining a molecular sieve HY and phosphoaluminate, an alkali source and water are added, and the CHA type molecular sieve is prepared through crystal transformation method hydrothermal synthesis. The invention aims to prepare the CHA type silicon-aluminum molecular sieve through crystal transformation hydrothermal synthesis by using a novel aluminum source, namely a mixed aluminum source formed by combining phosphoaluminate and a commercial molecular sieve HY, under the conditions of no use of an organic template agent and no addition of seed crystals. The CHA type silicon-aluminum molecular sieve with the silicon-aluminum ratio (SiO2 / Al2O3) higher than 6 can be prepared under the optimal condition, and the yield of the obtained CHA type molecular sieve is higher than 85%.

The application provides a method for reconstructing lithium extraction from alkali leaching of spodumene, which comprises the following steps: mixing spodumene and alkali liquor in a pressure reaction kettle and carrying out a hydrothermal alkali leaching reaction, and then carrying out solid-liquid separation on the reaction slurry to obtain alkali leaching residue and filtrate; mixing the alkali leaching residue and a leaching agent in the reaction kettle and carrying out an alkali leaching residue leaching reaction, and then carrying out solid-liquid separation on the reaction slurry to obtain leaching residue and lithium-containing leaching liquor. The method for reconstructing lithium extraction from alkali leaching of spodumene does not need to carry out high-temperature calcination and crystal transformation activation of spodumene, but can obtain lithium-containing leaching liquor through hydrothermal alkali leaching reaction and alkali leaching residue leaching reaction, so that clean production is realized, and the lithium-containing leaching liquor can be used to produce lithium carbonate, lithium hydroxide, lithium chloride, lithium phosphate and other series of lithium salt products with high purity, high value and wide application.

The invention discloses a gypsum crystal modifier, alpha-type high-strength gypsum powder and a preparation method and application thereof, and belongs to the technical field of building gypsum. The preparation method of the gypsum crystal modifier comprises the following steps: mixing and stirring a first sodium hydroxide solution and 2, 6-diaminopimelic acid, then continuously adding maleic anhydride and a second sodium hydroxide solution in batches, and then stirring and reacting under the conditions that the temperature is 40-60 DEG C and the pH value is 12-14 to obtain the crystal modifier. The invention also provides application of the crystal modifier in preparation of alpha-type high-strength gypsum. The invention further provides alpha-type high-strength gypsum powder which is prepared by using the crystal modifier for crystal transformation of the gypsum. The crystal modifier provided by the invention can improve the strength of gypsum powder to 45.5 MPa or above, and when the crystal modifier is applied to systems such as gypsum-based self-leveling mortar as a cementing material, the mortar system can be ensured not to be influenced by cement, lime, a water reducing agent and the like, and the setting time can be regulated and controlled.

The present application relates to a kind of green metatitanic acid fast direct transmission deviating crystallization system of green metatitanic acid, including desulfurization tower, induced draft fan, bag dust collector, scattering dryer, high-temperature fan, cyclone one cylinder, suspension calcining furnace, cyclone two cylinders.The present application uses suspension calcining technology to produce titanium dioxide, uses green electricity as electric energy, recycles and utilizes the byproduct carbon dioxide, is conducive to product zero-carbon production, promotes the carbon neutralization of titanium dioxide industry.