40results about "Titanium halides" patented technology

The invention provides a titanium tetrachloride boiling chlorination process optimization method based on a causal model and electronic equipment, and the method comprises the steps: constructing a generation mechanism between structural equation model expression variables based on the causal relationship between boiling chlorination key process parameters and result variables; the effect of external intervention on the TiCl4 yield and unit cost is simulated through causal inference, and a multi-target optimization model with the minimization of the unit product manufacturing cost and the maximization of the TiCl4 yield as targets is constructed in combination with the structural model and Monte Carlo sampling estimation expectation; and iteratively solving the optimization model by adopting a causal-based non-dominated sorting genetic algorithm, and obtaining a Pareto optimal solution set meeting variable constraint conditions through operations such as causal variable classification, dynamic penalty weighting, non-dominated sorting and sensitive driving disturbance. According to the method, a causal modeling and optimization integrated framework suitable for the boiling chlorination process is constructed, personalized process strategy generation and production operation decision making are supported, and the raw material utilization rate and the process operation economy are improved.

The invention discloses a device and method for ultra-clean emission of tail gas of a large fused salt chlorination furnace, the device comprises a water washing device, an alkali washing device and a tail gas white removal device, an inlet of the water washing device is communicated with a smoke outlet of the chlorination furnace, and an outlet of the water washing device is communicated with an inlet of the alkali washing device; in addition, the tail gas white removal device comprises a heat exchanger, and the heat exchanger enables the temperature of the circulating liquid in the alkali washing device to be lower than 40 DEG C. A trace amount of TiCl4 flue gas in the tail gas is absorbed by utilizing a water washing principle, chlorine, CO2 and HCl in the tail gas are absorbed by utilizing an alkali washing principle, and the temperature of circulating liquid in an alkali washing device is controlled by adopting a heat exchanger, so that an alkali washing byproduct, namely sodium chloride, is prevented from being decomposed, and further, the increase of flue gas particulate matters generated by the decomposition is avoided; therefore, most harmful impurities in the tail gas are removed.

The invention relates to a directional purification method and equipment for titanium tetrachloride in the field of preparation and purification of integrated circuit raw materials, the directional purification equipment comprises an oxidation device, the oxidation device comprises an oxidation kettle, a pure copper part and a spraying device, the pure copper part and the spraying device are contained in the oxidation kettle, and the spraying device is suspended above the pure copper part; a feeding hole connected with the spraying device is formed in the oxidation kettle, and a first heating device for heating the pure copper workpiece is arranged on the oxidation kettle; the rectifying system comprises a rectifying still, a rectifying tower connected to the top of the rectifying still and a second heating device used for heating the rectifying still, a material pressing opening and an inert gas opening are formed in the rectifying still, and a tower top condensation structure is formed at the top of the rectifying tower; a plurality of tower plates are arranged in the rectifying tower at intervals along the height direction of the rectifying tower. According to the directional purification method and equipment, the purification difficulty of the titanium tetrachloride can be effectively reduced, the production cost is reduced, and the purity of the titanium tetrachloride is effectively improved.

A method for producing Mg-containing particles by performing a classification process using a centrifugal airflow classifying device, the centrifugal airflow classifying device including: a housing; a rotating body that rotates within the housing; a classification chamber located on an outer edge side of the rotating body; and a flow path formed by an inner surface of the housing and a top surface of the rotating body, connecting an upstream end portion with the classification chamber, wherein the method for producing Mg-containing particles includes: supplying the unclassified Mg-containing particles to the classification chamber so that an average flow velocity of the unclassified Mg-containing particles on a downstream side from the upstream end portion in the flow path is lower than an average flow velocity of the unclassified Mg-containing particles at the upstream end portion flowing inside the flow path; and classifying the unclassified Mg-containing particles in the classification chamber to obtain Mg-containing particles, wherein an attrition durability A (%) of the unclassified Mg-containing particles calculated by the following formula (1) is 85 or less: A = (Z ÷ Y) x 100... (1).

The utility model relates to a boiling chlorination furnace gas quenching pipeline which comprises a connecting flange, a steel body shell, a castable and a neck bush pipe, high-temperature furnace gas is arranged in the quenching pipeline and flows in the neck bush pipe at a high speed, the castable is arranged outside the neck bush pipe, and the neck bush pipe and the steel body shell are connected together through the castable. An anchoring part is welded in the steel body shell, connecting flanges are welded to the two ends of the steel body shell, a lifting lug is welded to the outer surface of the steel body shell, and a reinforcing plate is attached between the lifting lug and the steel body shell. The neck bush pipe is arranged, so that the smoothness of the inner wall of the quenching pipeline is improved, and the phenomenon that high-boiling-point impurities in furnace gas are continuously bonded in the cooling pipeline, and consequently the cooling pipeline is blocked can be avoided or greatly relieved. And meanwhile, the castable with low water content and higher acid resistance is adopted, so that the service life of the quenching pipeline is greatly prolonged, and a powerful guarantee is provided for stable production of the chlorination furnace.

The invention discloses a C6 compound, application and a vanadium removal method, the C6 compound is obtained by reacting olefin and TiCl4 at 120-160 DEG C, the volume ratio of the olefin to the TiCl4 is (15-25): (1-5), and the olefin is alpha-olefin or isoprene with the carbon atom number larger than or equal to 9. The C6 compound has a good vanadium removal effect, does not cause the problem of high carbon content impurities in refined TiCl4, does not generate wall-adhered residues to block equipment in a vanadium removal process, is easy to clean, and has a vanadium removal rate of 99.62%; the recycled C6 compound can be reutilized, namely can be used for recycling vanadium-containing compounds, and can also be used for vanadium removal experiments again after being treated.

The invention relates to the technical field of titanium tetrachloride, and provides a vanadium removal reagent for removing vanadium impurities in titanium tetrachloride and a use method of the vanadium removal reagent, the vanadium removal reagent is prepared from the following components in percentage by mass: 20-60% of anthracene compounds, 1-10% of phenanthrene compounds, 5-20% of pyrene compounds, 10-30% of thiophene compounds and 10-30% of naphthalene compounds, the sum of the mass percentages of all the components is 100%, and the vanadium removal reagent is used for reacting with vanadium oxychloride in titanium tetrachloride to remove vanadium impurities. According to the scheme, the defects that the vanadium removal efficiency is low, the speed is low, dangerous reagents are used and secondary carbon pollution is introduced in a traditional process are overcome, and the purity of the obtained titanium tetrachloride product completely meets the strict application requirements in the high-end field.

The utility model discloses a kind of feeding devices for refining titanium tetrachloride, it is related to chemical equipment technical field, including mineral oil storage tank, for storing high viscosity mineral oil, the outside of mineral oil storage tank is equipped with steam jacket, steam inlet and steam outlet are equipped on the steam jacket;Coarse titanium storage tank, for storing coarse titanium tetrachloride;Mixing tank, the discharge outlet of mineral oil storage tank is communicated with the mixing tank by feeding assembly, the discharge outlet of coarse titanium storage tank is communicated with the mixing tank by first material transmission pipeline, the mixing tank is communicated with the feed inlet of rectification system by second material transmission pipeline, the second material transmission pipeline is used to send coarse titanium tetrachloride-mineral oil mixed solution into the rectification system.Upper described feeding device for refining titanium tetrachloride, realizes the technical effect of improving refining efficiency and product quality, reduces pipeline jamming risk, guarantees the stable operation of production.

This invention relates to the field of titanium chemical technology, specifically to a method for accelerating the precipitation of solid suspended impurities in crude titanium tetrachloride. A precipitation aid is added to the crude titanium tetrachloride. After reacting with titanium tetrachloride at room temperature, the precipitation aid generates a large amount of flocculent material, which adsorbs and rapidly precipitates the solid suspended impurities. The precipitation aid is a mixture of long-chain alkanes or olefins. This invention, by adding a precipitation aid to crude titanium tetrachloride, operates on a principle similar to flocculants precipitating solid suspended impurities in wastewater. The aid reacts with titanium tetrachloride at room temperature to generate a large amount of flocculent material, which adsorbs and rapidly precipitates the solid suspended impurities, increasing the precipitation rate of solid impurities in crude titanium tetrachloride, shortening the precipitation time, and reducing production costs. After adding the precipitation aid, the solid suspended impurities in crude titanium tetrachloride can be basically precipitated within five minutes, and become clear and transparent in about half an hour. This shortens the precipitation time, improves the efficiency of the settling tank, and also makes the vanadium slag after vanadium removal purer and more valuable.

This invention provides a heat-insulating and corrosion-resistant manhole device for maintenance of a fluidized bed chlorination furnace and a fluidized bed chlorination furnace. The manhole device is installed in the boiling section of the fluidized bed chlorination furnace and includes a manhole connector, a stainless steel pipe, and a manhole cover. The manhole connector is connected to the furnace shell of the fluidized bed chlorination furnace, and the manhole cover is installed at the end of the manhole connector away from the furnace shell. The stainless steel pipe is installed inside the manhole connector, with the inner wall of the manhole connector nested with the outer wall of the stainless steel pipe. The stainless steel pipe extends towards the furnace chamber of the fluidized bed chlorination furnace and penetrates the refractory layer inside the furnace shell until it communicates with the furnace chamber. At least one sealing element is installed in the cavity of the stainless steel pipe, and the sealing element can be removed from or installed inside the stainless steel pipe. This invention, by installing a manhole device in the boiling section of the fluidized bed chlorination furnace, allows for the rapid discharge of slag from the furnace, saving time and effort, ensuring safety and efficiency, and greatly protecting the personal safety of employees.

The utility model relates to the field of chemical production, in particular to a titanium tetrachloride cold recycling device which comprises a cold titanium tetrachloride storage tank, the device further comprises an atomizing spray head and a spray nozzle, the upper end of the cold titanium tetrachloride storage tank is fixedly connected with a supporting frame, the upper end of the supporting frame is fixedly connected with a second-stage condenser, a direct cooler and a third-stage condenser, and the inner wall of the direct cooler is fixedly connected with an annular flow dividing pipe. According to the utility model, through the use of the atomizing spray head and the spray nozzle, spraying is carried out from different angles and positions, mixed gas is further cooled, and part of gas is liquefied and flows into the cold titanium tetrachloride storage tank along the storage hopper, so that the cooling area and the uniformity are increased, and the liquefaction efficiency and the cooling effect are improved; a gas-liquid mixture is fed into a third-stage condenser for deep cooling, residual titanium tetrachloride gas is completely liquefied and flows into a cold titanium tetrachloride storage tank, liquid titanium tetrachloride in the storage tank is pressurized through a circulating system and then is fed back to a direct cooler to be used as a cooling medium, and the cooling and liquefying efficiency is improved.

This invention provides a pre-distillation system for high-boiling-point impurities in crude titanium tetrachloride containing high concentrations of particulate matter. The system includes: a pre-distillation column, in which rising titanium tetrachloride vapor gas, separated from the high-boiling-point impurities, is flash-distilled. Heat and mass transfer are utilized between the crude titanium tetrachloride spray solution and the rising titanium tetrachloride vapor gas gas to wash the rising gas particulate matter and effectively separate the high-boiling-point impurities, thereby directly supplying the gaseous product feed to a primary refining system; a pre-distillation pump tank, which receives the spray solution and partially transports the concentrated crude titanium tetrachloride liquid produced therein to the pre-distillation column reboiler; and the pre-distillation column reboiler, which superheats the received concentrated crude titanium tetrachloride liquid before sending it back to the pre-distillation column for further flash distillation. This pre-distillation system for high-boiling-point impurities in crude titanium tetrachloride containing high concentrations of particulate matter allows for the initial, separate interception of most solid particulate matter in the crude titanium tetrachloride.

The invention relates to a feedstock composite comprising a metal oxide fraction and a carbonaceous fraction, a binder composition and the use thereof for obtaining the feedstock composite. Further, the invention refers to a method for obtaining the feedstock composite.

The invention relates to the technical field of metallurgical environmental protection, in particular to a continuous treatment process for titanium tetrachloride refined vanadium removal slurry and an induction furnace system. The continuous treatment process comprises the following steps: continuously and uniformly introducing the organic matter refined vanadium removal slurry into an induction furnace through a feeding control device; an alternating magnetic field generated by an induction furnace is utilized to enable conductive components in the organic matter refined vanadium removal slurry to generate eddy current heating, so that the slurry is heated to be above the boiling point of a titanium tetrachloride solvent, and rapid evaporation and solid-liquid separation of the solvent are realized; the evaporated titanium tetrachloride steam is guided into a condensation system to be condensed and recycled; solid residues obtained after separation are guided out, cooled and collected. The process not only realizes high recovery rate of titanium tetrachloride and enrichment and recovery of vanadium resources, but also greatly reduces energy consumption by virtue of internal heating and high efficiency characteristics of induction heating, and effectively solves the problems of high energy consumption, low efficiency and resource waste in treatment of the vanadium-containing slurry.

The invention provides a fluorination process based on ammonium bifluoride, which comprises the following steps: crushing a titanium-containing compound to a first set mesh number, cleaning the titanium-containing compound, and drying until the moisture content is lower than a set value; grinding ammonium bifluoride powder with set purity until the particle size is smaller than or equal to a second set mesh number; the method comprises the following steps: mixing a titanium-containing compound and ammonium bifluoride into a reaction kettle according to a set mass ratio, and introducing nitrogen into the reaction kettle; raising the temperature in the reaction kettle to a first set temperature T1 at a set temperature raising speed, carrying out constant-temperature reaction in the reaction kettle for a set time length, and stirring the mixture in the reaction kettle at a set stirring speed; transferring the fluorination reaction product in the reaction kettle into a tubular sublimation furnace, heating the interior of the tubular sublimation furnace under the protection of nitrogen, carrying out gradient condensation on the fluorination reaction product in a plurality of temperature sections by utilizing a condensing tower, and recovering fluoride in each condensation temperature section; ammonium hexafluorotitanate in the recovered fluoride is subjected to ammonia precipitation hydrolysis and sintering, and titanium dioxide powder is obtained.

This invention provides a method for preparing fluidized bed chlorination titanium-rich feedstock from vanadium-titanium magnetite concentrate, comprising: mixing vanadium-titanium magnetite concentrate with a calcifying agent to prepare alkaline green pellets of vanadium-titanium magnetite concentrate, followed by calcification and oxidation roasting to obtain calcified oxide pellets; reducing the calcified oxide pellets with a reducing agent to obtain metallized pellets; melting and separating the metallized pellets with a supplementary calcifying agent to obtain molten iron and molten titanium slag; mixing the molten titanium slag with a water-quenching solution for water quenching to obtain water-quenched modified titanium slag; controlling the particle size of the water-quenched modified titanium slag to obtain fluidized bed titanium slag that meets the particle size requirements of the fluidized bed chlorination process; acid leaching and solid-liquid separation of the fluidized bed titanium slag to obtain titanium-rich feedstock; and alkaline leaching and solid-liquid separation of the titanium-rich feedstock to obtain fluidized bed chlorination titanium-rich feedstock. This invention improves the comprehensive utilization rate of vanadium and titanium in vanadium-titanium magnetite concentrate and prepares titanium into high-quality titanium-rich feedstock suitable for the fluidized bed chlorination process, while also possessing advantages such as industrial operability and environmental friendliness.

The invention discloses a calcium-titanium compound recycled from titanium-containing slag and a recycling method and application thereof, and belongs to the technical field of application of titanium-containing slag. The calcium-titanium compound comprises calcium-titanium oxide, the surface and the interior of the calcium-titanium compound are both provided with pore structures, the specific surface area is 0-30 m < 2 > / g, the micropore volume is larger than 0.00008 cm < 3 > / g, and the pore size of the pore structures is 7-100 nm. The recycling method comprises the steps that reconstructed slag particles obtained after titanium-containing slag powder and modifier powder mixed mineral reconstruction are subjected to at least two stages of leaching treatment, an extract, namely the calcium-titanium compound is obtained, and at least one stage of F-containing salt or F-containing acid leaching treatment is included. The calcium-titanium compound provided by the invention has wide application in preparation of titanium-containing products.

This invention relates to a process for the production of fluorinated metal oxide particles, the fluorinated metal oxide particles obtainable with such a process, and use thereof in the preparation of a solid-state electrolyte.

This invention discloses a flow guiding device and method for a low-temperature chlorination furnace. The flow guiding device includes an information collection unit and a vibration assembly. The information collection unit collects temperature signals at different locations within the fluidized bed distribution area of ​​the low-temperature chlorination furnace. The vibration assembly includes a vibration guide tube and a vibration control unit. The vibration control unit is located on the top outer side of the low-temperature chlorination furnace. An eccentric vibration shaft is installed inside the vibration guide tube. The top end of the eccentric vibration shaft is connected to the vibration control unit, and the bottom end of the eccentric vibration shaft extends to the fluidized bed and can move within the fluidized bed. This low-temperature chlorination furnace flow guiding device can promptly perform vibration and flow guiding when a fluidization dead zone occurs in the fluidized bed of the low-temperature chlorination furnace, restoring the normal fluidization state, avoiding localized high temperatures, and significantly improving the Ti recovery efficiency of the low-temperature chlorination furnace.

This invention belongs to the field of high-purity titanium tetrachloride refining technology, specifically relating to a catalytic organic additive, its preparation method, and its application. The catalytic organic additive is composed of organic base oil, alkanes, cycloalkanes, aromatics, and metal oxides in a specific mass ratio, with the following mass ratios: 40–70: 2–10: 10–40: 5–10: 2–10; wherein the organic base oil is glycerol, the alkanes are naphtha, the cycloalkanes are cyclohexane, the aromatics are C9 aromatics, and the metal oxide is alumina. This invention enables the organic additive to possess excellent catalytic cracking performance; in the vanadium removal process of high-vanadium titanium tetrachloride, it can rapidly react with vanadium compounds, significantly improving vanadium removal efficiency while greatly reducing the unit dosage of the organic additive used for vanadium removal. It combines process applicability and economy, and is suitable for the refining stage of high-vanadium titanium tetrachloride in the production of titanium dioxide and sponge titanium.

The application discloses a method for preparing titanium tetrachloride by low-temperature carbonization-selective chlorination of molten separation titanium slag with the aid of an additive. The method comprises the following steps: grinding titanium slag obtained by hydrogen reduction and electric furnace melting separation of vanadium-titanium magnetite concentrate to a predetermined particle size; uniformly mixing the ground titanium slag with an additive, and then placing the mixture in a tubular furnace, and heating to 800-1100 DEG C, while introducing a mixed gas of methane and hydrogen to perform a carbonization reaction, to obtain a carbonization product; and finally, performing a chlorination reaction on the carbonization product at a certain temperature with chlorine to generate crude titanium tetrachloride. The application realizes gas-based reduction carbonization of molten separation titanium slag, and compared with a traditional high-temperature carbonization process, the reaction temperature is significantly reduced, the carbonization rate is improved, and a new technical approach is provided for efficient comprehensive utilization of molten separation titanium slag.

The application provides a fluidized boiling chlorination furnace temperature control system and a control method. The system comprises a boiling chlorination furnace, a gas distributor and a top spraying tower. The gas distributor is arranged at the lower part of the chlorination furnace, and the top spraying tower is arranged at the top of the chlorination furnace. The top spraying tower is connected with a dust collection system through a furnace gas pipeline. The gas distributor is connected with a mixed gas main pipeline. A chlorination furnace bed temperature control system is arranged at the middle part or the part close to the middle part of the chlorination furnace. The chlorination furnace bed temperature control system comprises a first crude TiCl4 pipeline and a first N2 pipeline. The bed temperature is controlled in the range of 950-1000 DEG C through the gas distributor and the chlorination furnace bed temperature control system. A top gas pipeline temperature control system of the chlorination furnace is arranged in the top spraying tower. The top gas pipeline temperature control system comprises a branch of the first crude TiCl4 pipeline and a second N2 pipeline. The gas temperature of the chlorination furnace is controlled in the range of 580-630 DEG C through the top gas pipeline temperature control system.

The solid electrolyte contains M1, M2, and X, M1 is an element having a monovalent cation and including at least one element selected from the group consisting of Li, Na, and K, M2 is at least one element having a trivalent cation, X is at least one element selected from the group consisting of F, Cl, Br, and I, and the axial angles alpha, beta, and gamma in the unit lattice of the crystal structure are all 90 DEG. As a result, it is possible to provide a solid electrolyte having high ion conductivity.

The present disclosure pertains to a method for producing a fluoride, the method including a step in which a mixture containing a first ammonium salt containing Ti and F, a second ammonium salt containing Al and F and having a composition different from that of the first ammonium salt, and a lithium-containing compound is fired in an inert gas atmosphere. The first ammonium salt is represented by (NH4) aTiFa + 4, and a satisfies 0 < a < = 2. The second ammonium salt is represented by (NH4) bAlFb + 3, and b satisfies 0 < b < = 3. The lithium-containing compound contains at least one compound selected from the group consisting of lithium fluoride, lithium carbonate, and lithium nitrate.

The invention relates to the technical field of titanium tetrachloride refining, in particular to a vanadium metal recovery process in a crude titanium tetrachloride purification process. The vanadium metal recovery process in the crude titanium tetrachloride purification process comprises a crude titanium tank, a pump tank and solid-liquid separation equipment, and crude titanium tetrachloride in the crude titanium tank can be conveyed to the pump tank to react with a vanadium removal agent in the pump tank to generate insoluble precipitates. The temperature of the pump tank can be controlled at a preset temperature, titanium tetrachloride is evaporated, and when the liquid level of materials in the pump tank is stabilized in a preset interval and the solid-to-liquid ratio of the materials is larger than or equal to a preset value, high-vanadium waste residues are discharged out of the pump tank to solid-liquid separation equipment to be subjected to solid-liquid separation, so that liquid-phase matter and the high-vanadium waste residues are obtained. Therefore, the high-vanadium waste residues are continuously discharged in the vanadium removal process, and the situation that the stability of the follow-up process and the product quality are affected due to long-term enrichment of the high-vanadium waste residues can be effectively avoided; and meanwhile, the reaction conversion rate of vanadium-containing impurities in the crude titanium tetrachloride in the pump tank and the vanadium removal agent is promoted to a certain extent, and the purpose of reducing the use amount of the vanadium removal agent is achieved.

The halide solid electrolyte of the present disclosure includes Li, Al, M, and X. M represents at least one element selected from the group consisting of metal elements (excluding Li and Al) and semimetal elements, and X represents at least one element selected from the group consisting of F, Cl, Br and I. The solid electrolyte contains a first particle group comprising a compound A containing Al and X, and a second particle group comprising a compound B not containing Al but containing M and X. In the first particle group, the coefficient of variation CVAl (CVAl = ([sigma] Al / AAl) * 100) determined using the standard deviation [sigma] Al of the mass ratio Al / X and the average value AAl is 10% or less. In the second particle group, the coefficient of variation CVM (CVM = (sigmaM / AM) 100) determined using the standard deviation sigmaM of the mass ratio M / X and the average value AM is 20% or less.

The utility model relates to the field of titanium chemical industry, and discloses a feeding device for a fused salt chlorination furnace, which comprises a plurality of feeding units, a screw conveyer communicated with fluids of the feeding units and a controller, wherein each feeding unit comprises a batching bin for storing materials, a plurality of weighing bins with weighing modules, a first switching module and a second switching module; the first switching module is arranged between the batching bin and the plurality of weighing bins and is configured to enable the batching bin to be in fluid communication with the plurality of weighing bins in a switchable manner; the second switching module is arranged between the plurality of weighing bins and the screw conveyor, and is configured to enable the screw conveyor to be in switchable fluid communication with the plurality of weighing bins; wherein the controller is in communication connection with the weighing module, the first switching module and the second switching module. According to the utility model, the accuracy, the continuous stability and the uniformity of feeding in the fused salt chlorination process can be improved.

The utility model discloses a device for rapidly purifying titanium tetrachloride in a laboratory. The device comprises a reactor with a reaction cavity, a heating device and a cooling device, a titanium tetrachloride raw material inlet is formed in one end of a reaction cavity of the reactor, a titanium tetrachloride product outlet is formed in the other end, and a filler filling area is formed in at least partial area in the reaction cavity; in the reaction cavity leading from the titanium tetrachloride raw material inlet to the titanium tetrachloride product outlet, the filler filling area is at least fully filled on the section of the part; the heating device is at least arranged on the outer side of the reactor and is used for providing a proper reaction temperature environment for the titanium tetrachloride raw material in the filler filling area in the reaction cavity; and the cooling device is at least arranged near the titanium tetrachloride product outlet so as to provide a temperature environment for cooling the titanium tetrachloride product. The device disclosed by the utility model is simple in structure, and can quickly realize removal of V and Fe from commercially available titanium tetrachloride products for laboratories through a simple purification device, so that the titanium tetrachloride products with higher purity can be obtained in a laboratory environment at low cost.

The invention relates to the field of chlorination metallurgy, and provides a circulating chlorine treatment system and method for a molten salt chlorination furnace, the system comprises a chlorine buffer tank, a chlorination furnace main body and a chlorine pipeline connecting the chlorine buffer tank and the chlorination furnace main body; wherein the chlorine buffer tank, the chlorine introducing pipeline and the chlorination furnace main body are sequentially connected, and an ultrasonic agglomeration device is arranged at a gas inlet of the chlorine buffer tank and is used for agglomerating titanium dioxide particles entrained in circulating chlorine introduced from the gas inlet; at least one group of horizontal baffles are arranged on a gas flowing path in the chlorine buffer tank, and the horizontal baffles are used for promoting sedimentation of agglomerated particles; the chlorine introducing pipeline is connected to a tangential lower inlet in the side wall of the chlorination furnace main body, the included angle between the tangential direction of the tangential lower inlet and the horizontal direction is 5-22 degrees, and the chlorine introducing pipeline is used for enabling circulating chlorine to enter the chlorination furnace main body in a rotational flow manner. According to the method, the economical efficiency and continuity of butt joint of titanium dioxide oxidation and fused salt chlorination procedures are guaranteed.

The present application belongs to a kind of harmless treatment method and system for titanium tetrachloride slurry, including making hot flue gas parameters according to slurry component state data and heat source medium quality data, into fluidized bed reactor as fluidizing agent and heat source.Make low-temperature water parameters, send current titanium tetrachloride slurry and hot flue gas into fluidized bed reactor according to preset proportion, control reaction condition to obtain flue gas particle mixture.Enter porous metal filter, obtain titanium tetrachloride flue gas and solid particles.Pour titanium tetrachloride flue gas into cooler, cool according to low-temperature water parameters, recover titanium tetrachloride to obtain flue gas quality data.According to particle detection result and flue gas quality data, judge whether current titanium tetrachloride slurry is treated up to standard, otherwise adjust hot flue gas parameters and low-temperature water parameters;The present application can realize continuous treatment of titanium tetrachloride slurry, greatly improve the processing efficiency, promote the resource high-value utilization of titanium tetrachloride slurry that cannot return to chlorination furnace process.