94results 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.

A halide material producing method according to the present disclosure includes (A) subjecting a material mixture containing a first compound containing Li, M1, and X1 and a second compound containing M2 to mechanochemical treatment, wherein each of M1 and M2 represents one type of element selected from a metal element and a metalloid element, and X1 represents at least one selected from the group consisting of F, Cl, Br, and I.

A halide solid electrolyte according to the present disclosure contains Li, Al, M, and X. M is at least one element selected from the group consisting of metal elements (excluding Li and Al) and metalloid elements. X is at least one element selected from the group consisting of F, Cl, Br, and I. The solid electrolyte contains a first particle group that is constituted by first particles composed of a compound A which contains Al and X, and a second particle group that is constituted by second particles composed of a compound B which contains M and X and does not contain Al. In the first particle group, a coefficient of variation CVAl (CVAl=(σAl / AAl)×100) that is obtained using an average AAl and a standard deviation σAl of a mass ratio Al / X is not more than 10%. In the second particle group, a coefficient of variation CVM (CVM=(σM / AM)×100) that is obtained using an average AM and a standard deviation σM of a mass ratio M / X is not more than 20%.

The salt discharging device of the fused salt chlorination furnace comprises a salt discharging flow channel three-way pipe arranged above a salt discharging pit, the upper end pipe of the salt discharging flow channel three-way pipe is connected with a discharging opening, the lower end pipe of the salt discharging flow channel three-way pipe is a buffer pipe, the middle pipe of the salt discharging flow channel three-way pipe is connected with a salt discharging flow channel straight pipe, and the middle pipe of the salt discharging flow channel straight pipe is connected with the salt discharging pit. The tail part of the salt discharging runner straight pipe extends into the salt discharging pit, a feeding hopper is arranged above the salt discharging runner straight pipe, and an automatic gate valve is arranged in the middle of a straight pipe of the feeding hopper. According to the salt discharging device of the molten salt chlorination furnace, the buffer area is increased by changing the salt discharging runner of the molten salt chlorination furnace, so that frequent perforation of the salt discharging runner caused by scouring of high-temperature molten salt to the salt discharging runner is avoided; meanwhile, an automatic feeding device is additionally arranged in the salt discharging process, volatile harmful substances in the fused salt are removed, and therefore the purposes of reducing the equipment maintenance cost, reducing potential safety hazards in the salt discharging process, reducing harmful gas emission, protecting the environment and the like are achieved.

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 method for preparing low-valence titanium chloride from gaseous TiCl4 through a molten salt method, and belongs to the technical field of titanium metallurgy. The low-valence titanium chloride preparation device comprises a TiCl4 gasification unit, an argon current-carrying conveying unit and a molten salt reaction unit, crude titanium and chloride molten salt are added into the molten salt reaction unit, the chloride molten salt is heated to 500-800 DEG C through the molten salt reaction unit, liquid molten salt is kept, and the liquid molten salt is located above a crude titanium solid phase; the method comprises the following steps: heating liquid TiCl4 to the temperature of 150-200 DEG C through a TiCl4 gasification unit, and gasifying the liquid TiCl4 into TiCl4 steam; tiCl4 steam is introduced into liquid molten salt of the molten salt reaction unit at a constant speed through argon flow of the argon current-carrying conveying unit, a gas-solid-liquid three-phase interface reaction system is constructed in a normal-pressure inert atmosphere, and the TiCl4 steam and crude titanium in the liquid molten salt are subjected to a multi-phase reduction reaction at the temperature of 500-800 DEG C to obtain low-valence titanium chlorides (TiCl3 and TiCl2). The method is suitable for providing a stable and efficient low-valence titanium chloride raw material for preparing high-purity metal titanium through a fused salt electrolysis method.

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.

The utility model discloses a vanadium removal device for producing titanium dioxide by a chlorination process, which comprises a vanadium removal reactor, a vanadium removal tower, a vanadium removal reboiler, a reflux tank, a first inspection tank, a second inspection tank and a vanadium removal condenser, and the vanadium removal reboiler is connected with the vanadium removal tower through a mineral oil adding assembly. The online vanadium analyzer is reasonable in structural design, the online vanadium analyzer is additionally arranged on the pipeline from the titanium tetrachloride outlet of the vanadium removal reboiler to the vanadium removal tower, meanwhile, the pipeline sight glass and the monitoring camera are additionally arranged on the feeding pipeline from the return tank to the inspection tank, and real-time data and monitoring pictures of the online vanadium analyzer are transmitted to the central control room. And central control room personnel monitor the vanadium content of the material at the outlet of the vanadium removal reboiler and the chromaticity of a refined product in real time, so that the problem of control lag caused by untimely discovery is solved, and accurate control on the addition amount of mineral oil is realized.

Provided is lithium potassium titanium oxide which can increase a friction coefficient in a high-load region and can improve the stability of a friction coefficient when used in a friction material.　The lithium potassium titanium oxide is represented by the compositional formula: K0.10 to 0.44Li0.27Ti1.73O3.65-3.82, in which the half width of a peak observed in a range of diffractive angles 2θ of 10.9° to 11.6° in an X-ray diffraction measurement of the lithium potassium titanium oxide is 0.20° or more.

The utility model belongs to the technical field of material separation, and particularly relates to a titanium tetrachloride rectifying device which comprises a reaction kettle and a rectifying tower, the kettle top of the reaction kettle is connected with the tower bottom of the rectifying tower through a gaseous mixture discharging pipeline, copper filler is filled in the rectifying tower, the copper filler is random filler or regular filler, and the reactor top of the reaction kettle is connected with the tower bottom of the rectifying tower through a gaseous mixture discharging pipeline. The reaction kettle is connected with a heating mechanism, and the rectifying tower is connected with a condensation reflux mechanism. According to the utility model, the copper filler is used as the built-in filler of the rectifying tower, VOC (Volatile Organic Compounds) l3 can directly react with the copper filler to generate a substance which is not dissolved in Ti C l4, so that the aim of removing impurities is fulfilled; impurity separation can be achieved without increasing the number of theoretical plates of a rectifying tower and the reflux ratio, the VOC l < 3 > impurity can be removed more simply, and meanwhile the equipment investment cost and the operation energy consumption are greatly reduced.

The invention belongs to the field of titanium chemical industry, and particularly relates to a method for removing phosgene in titanium tetrachloride, which comprises the following steps: a chlorination process: mixing a titanium-containing oxide and a carbonaceous reducing agent, pouring into a chlorination reaction furnace, heating to 700-725 DEG C, and carrying out chlorination reaction to obtain crude titanium tetrachloride; a rectification process: introducing the crude titanium tetrachloride into a rectification tower for rectification, and controlling the ratio of the distillate of the rectification tower to the feed amount to be 30-50% to obtain fine titanium tetrachloride; stirring and heating, namely introducing the fine titanium tetrachloride into a stirring and heating tank, heating and stirring to remove phosgene, and controlling the heating temperature to be 20-25 DEG C and the stirring time to be 5-10 minutes to obtain a titanium tetrachloride product and tail gas; and a tail gas treatment process: enabling the tail gas to pass through an alkali liquor absorption tower to absorb residual phosgene. According to the method, phosgene in titanium tetrachloride is efficiently removed by controlling the chlorination reaction temperature, rectification parameters and heating and stirring parameters.

This solid electrolyte includes M1, M2, and X, wherein: M1 is an element that forms a monovalent cation, and includes at least one element selected from the group consisting of Li, Na, and K; M2 is at least one element that forms a trivalent cation; X is at least one element selected from the group consisting of F, Cl, Br, and I; and the axial angles α, β, and γ in the unit lattice of the crystal structure are 90°. As a result, a solid electrolyte having high ionic conductivity can be provided.

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 belongs to the technical field of titanium tetrachloride production, and relates to a novel dust collection device, in particular to a novel dust collection device in the process of producing titanium tetrachloride by a fused salt chlorination method. By installing the automatic gate valve and the heating furnace, liquid titanium tetrachloride can be effectively prevented from entering the dust collection slag tank, a large amount of air can be prevented from entering a production system when the dust collection slag tank is replaced, and leakage of titanium tetrachloride gas when the dust collection slag tank is replaced is prevented, so that the titanium yield of titanium tetrachloride is improved, and the production cost is reduced. And the working environment of a dust collection area can be effectively improved, so that green and clean production of fused salt chlorination is realized. The two-half heating furnace is arranged, the dust collection slag tank is convenient to replace, and the flat car is arranged at the bottom of the heating furnace, so that the heating furnace is convenient to move when the dust collection slag tank is replaced.

The present invention discloses a hydrogenation reaction residue recovery and treatment system and method, belonging to the technical field of waste liquid recovery and treatment. The system includes: an evaporation kettle, an aluminum removal reactor, a first distillation column, a titanium removal reactor, a second distillation column, a high-boiling substance catalytic cracking reactor, a third distillation column, a condenser, a chlorosilane storage tank, a slurry tank, a screw conveyor and a hydrolysis tank. The present invention fills the blank of the recovery and treatment of chlorosilane residues, and realizes the stable operation of silane production by the disproportionation method through the recovery and treatment process of chlorosilane residues, ensuring the product quality. The recovery and treatment of chlorosilane residues in the present invention is of great significance for energy conservation, consumption reduction and emission reduction in silane production.

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.

A process for the preparation of non-fibrous alkaline titanates comprising the steps of: melting alkaline titanate in a furnace at a temperature ranging from 1300° C. to 1500° C. to form a molten product; cooling said molten product by placing it in contact with a material having a temperature equal to or lower than 15° C.

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.

The invention relates to the field of titanium metallurgy, and provides a titanium tetrachloride slurry treatment method. The method comprises the following steps: enabling the carbon-containing slurry generated in the titanium tetrachloride preparation process to participate in the molten salt chlorination reaction process again; the reducing property of carbon in the carbon-containing slurry is utilized, the flow of the carbon-containing slurry participating in the fused salt chlorination reaction process again is adjusted, and the amount of the reducing agent actually added in the fused salt chlorination reaction process is reduced. According to the scheme, on one hand, the carbon-containing slurry is recycled, the utilization value of the carbon-containing slurry is improved, on the other hand, the reducibility of carbon in the carbon-containing slurry is fully utilized, the amount of the actually added reducing agent is reduced, the consumption of the reducing agent is reduced, and the cost of industrial raw materials is saved.

The invention discloses a method for recycling residual liquid of a distillation kettle in a titanium tetrachloride refining process. The method comprises the following steps: (1) weighing the residual liquid: weighing the residual liquid of the distillation kettle in the TiCl4 refining process according to a set proportion as a binder; (2) raw material mixing: uniformly spraying a binder into the micro-fine particle titanium-rich material, and uniformly mixing the binder and the micro-fine particle titanium-rich material; (3) granulating: putting the uniformly mixed raw materials into a granulating machine, and granulating; and (4) drying and curing: drying and curing the granulation product to obtain the granulation product of the titanium-rich material. According to the method, the residual liquid of the distillation kettle in the TiCl4 refining process is used as a binder, the residual liquid contains TiCl4, AlCl3 and FeCl3, the residual liquid is returned to the fine-grain titanium-rich material granulation process, TiCl4 in the residual liquid is recycled, the particle size of the fine-grain titanium-rich material is increased, a granulation product with the particle size being 100-1000 microns and the proportion being 90% or above is obtained, and the granulation product can be directly applied to a boiling chlorination process.

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 present invention relates to a scar prevention device for a titanium dioxide chloride oxidation reactor, comprising: a first air curtain area, on which a first inlet is arranged; a second air curtain area, which is separated from the first air curtain area and is adjacently located behind the first air curtain area, and a second inlet is arranged on the second air curtain area; and an air curtain area pipeline, which radially passes through the first air curtain area and the second air curtain area and extends, and the two ends of the air curtain area pipeline are respectively provided with a fluid inlet and a fluid outlet, and rows of spirally distributed air curtain holes are formed on the air curtain area pipeline along the radial direction. In addition, the present invention also relates to an oxidation reactor including the above-mentioned scar prevention device and a method for scar prevention of a titanium dioxide chloride oxidation reactor using the above-mentioned scar prevention device. The air curtain design of the present invention enables the wall surface to form a more uniform and dense gas protection layer, reduces the wall surface temperature in the high-temperature zone, prevents the adhesion of powder particles to the wall surface, and effectively reduces the probability of scar material deposition behind the titanium tetrachloride annular seam.

This production method for a fluoride involves firing a mixture under an inert gas atmosphere, the mixture including a first ammonium salt that includes Ti and F, a second ammonium salt that includes Al and F and has a different composition from the first ammonium salt, and a lithium-containing compound. The first ammonium salt is represented by (NH4)aTiFa+4, wherein 0<a≤2. The second ammonium salt is represented by (NH4)bAlFb+3, wherein 0<b≤3. The lithium-containing compound includes at least one of lithium fluoride, lithium carbonate, and lithium nitrate.

To provide a method for producing titanium tetrachloride that can improve the yield in the production of titanium tetrachloride.SOLUTION: A method for producing titanium tetrachloride involves forming a fluidized bed including titanium ore containing titanium oxide, coke, and chlorine gas on a dispersion board by using a chlorination furnace equipped with the dispersion board. The method includes an estimation step of estimating a height of the fluidized bed, and in the estimation step, the height of the fluidized bed is estimated based on fluidized bed information obtained by measuring internal pressure in two or more fluidized bed formation regions differing in positions in the height direction.SELECTED DRAWING: None

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.