82 results about "Titanium slag" patented technology

The invention belongs to the technical field of steel smelting, and particularly discloses a comprehensive utilization method of vanadium titano-magnetite, which comprises the following steps: S1, preparing the vanadium titano-magnetite into pellets, and carrying out reduction reaction to obtain direct reduced iron; s2, a carbonaceous reducing agent and the direct reduced iron obtained in the step S1 are mixed and smelted in a melt separation electric furnace, and slag and molten iron are obtained; a slag former is not added in the smelting process, the purity of the titanium slag is improved through optimal design of the furnace profile of the melting electric furnace and combination of various smelting process control means, the problems that refractory materials of the melting electric furnace are excessively eroded, the service life is short, slag-metal separation is difficult, smelting is difficult to control and the like are solved, and the purposes of high-grade titanium slag and long service life of the melting electric furnace are achieved.

The invention discloses a melt separation titanium slag modification treatment method and system. The method comprises the steps that in the direct reduction-melt separation process, melt separation titanium slag components are regulated and controlled to enable the melt separation titanium slag to contain 40 wt%-60 wt% of TiO2 and 1.1 wt%-9 wt% of C, deslagging is conducted, after heat preservation melting is conducted on the melt separation titanium slag at the temperature of 1550-1600 DEG C for 30-60 minutes, slow cooling is conducted to 1200 DEG C at the cooling rate of 5-10 DEG C / min, then rapid cooling is conducted to 900 DEG C at the cooling rate of 20 DEG C / min or above, finally natural cooling is conducted to the room temperature, and modified slag is obtained. According to the method, regulation and control of components of the melt-separated titanium slag are combined with heat preservation, slow cooling, quenching and natural cooling, anosovite is directionally induced to serve as a main phase of the titanium slag, micronized spinel and an amorphous glass phase, titanium resources are enriched in the anosovite phase, and the modified titanium slag high in grade and good in activity is obtained; and the problems of low additional value, small utilization scale, poor economic benefit and the like of molten titanium slag products are solved.

The invention relates to an adjustable hanging device, and belongs to the field of large titanium slag electric furnace water-cooled furnace cover hanging devices in the metallurgical industry. The adjustable hanging device comprises a fixed seat, an adjusting device, a first hanging pull rod, a second hanging pull rod and a buffer device, wherein the first hanging pull rod is connected to the fixed seat; the second fixing pull rod is connected to the first hanging pull rod through the adjusting device so that the second fixing pull rod can move close to or away from the first hanging pull rod. And the buffer device is connected to the second fixed pull rod. The adjustable hanging device can level a hung object by adjusting the height of the adjustable hanging device.

This invention provides a method for improving the desulfurization capacity of high-titanium slag using an artificial intelligence model, applicable to the smelting of high-vanadium-titanium ore in blast furnaces. The method includes: controlling the MgO content in the slag to 8.0%-9.5% by weight, the binary basicity of the slag to 1.10-1.17, and the Al2O3 content ≤14.5%, while maintaining the MgO to Al2O3 ratio in the slag at 0.60-0.65; maintaining the physical heat of molten iron ≥1440℃; controlling the blast furnace inlet blast temperature ≥1200℃; controlling the sulfur load in the blast furnace inlet to 4.5-5.5 kg, and controlling the proportion of pellets in the blast furnace inlet to 46%-50%; and constructing a dynamic adjustment model based on predicted sulfur load increments and predicted titanium reduction increments, so that the oxygen enrichment rate is dynamically adjusted within a first threshold range, and the blast furnace coal ratio is dynamically adjusted within a second threshold range. This invention can dynamically adjust the oxygen enrichment rate and blast furnace coal ratio according to the sulfur load increment and titanium reduction increment, thereby improving the desulfurization capacity of high-titanium slag.

The invention provides a method for jointly smelting high titanium slag by adopting multiple raw materials, which comprises the following steps: S1, adding a binder and water into electric furnace fly ash, and stirring to obtain a first fly ash block; s2, rolling, crushing and screening the first dedusting ash block to obtain a second dedusting ash block; s3, the second dedusting ash blocks are mixed into the titanium concentrate to form a first mixed material; s4, adding a reducing agent into the first mixed material to form a second mixed material; s5, the second mixture and the high-titanium slag fine powder are added into an electric furnace for combined smelting, and high-titanium slag and regenerated electric furnace fly ash are obtained; and S6, cooling, crushing and grading the high-titanium slag to obtain a high-titanium slag finished product and regenerated high-titanium slag fine powder. By means of the method, the electric furnace fly ash and the high titanium slag fine powder can be fully recycled, recycling of by-products and waste products is achieved, the economic benefit of the high titanium slag is improved, meanwhile, the proportion of the regenerated high titanium slag fine powder, mine consumption and power consumption per ton slag are reduced, and the production cost of the high titanium slag is reduced.

The application relates to a preparation method of a manganese-containing pellet and a blast furnace smelting method, which comprises the following steps: step a, crushing, water-fine grinding and drying treatment are carried out on high-manganese lump ore to obtain high-manganese concentrate; step b, the high-manganese concentrate and bentonite are uniformly mixed according to a preset ratio to obtain a mixture; step c, the mixture is added into a disc pelletizer, and a pellet core is obtained in a water dripping ball forming mode; step d, based on the pellet core, the water content ratio and the balling time added into the disc pelletizer are controlled, so that the residual mixture of the mixture is uniformly wrapped on the outer layer of the pellet core, and a manganese-containing pellet is obtained. The method improves the traditional preparation method of the manganese-containing pellet, improves the quality of the manganese-containing pellet, and obtains the manganese-containing pellet meeting the performance standard of the blast furnace smelting. The blast furnace adding mode is optimized, the utilization efficiency of the manganese ore is improved, the iron loss is reduced, and the smelting of the high-titanium slag is improved.

The invention relates to the technical field of blast furnace smelting, and discloses a method for improving the flowability of high titanium slag in blast furnace smelting of vanadium titano-magnetite, and the method comprises the following steps: stabilizing a furnace charge structure of 48wt% of vanadium-titanium sintered ore, 48wt% of vanadium-titanium pellet ore and 4wt% of vanadium-titanium magnetite raw ore, smelting in the furnace, and adding 2-5wt% of dolomite and a proper amount of manganese powder into the vanadium-titanium sintered ore to improve the flowability of the slag. More preferably, the flowability of the high titanium slag is further improved by combining optimization of operation parameters such as large air volume, high air temperature, high oxygen enrichment rate and high top pressure of the blast furnace. According to the method for improving the flowability of the high-titanium slag, on the premise that the charging proportion of schreyerite is not reduced, generation of a high-melting-point phase in the slag can be effectively controlled, the viscosity of the slag is reduced, the flowability of the slag is improved, the smelting efficiency of a blast furnace is improved, and the production cost is reduced.

The invention discloses a resource comprehensive utilization method of titanium-containing blast furnace slag, and belongs to the technical field of resource comprehensive utilization of industrial solid waste. The resource comprehensive utilization method of the titanium-containing blast furnace slag comprises the following steps that molten titanium-containing blast furnace slag is subjected to water quenching and grinding refining, and water-quenched slag is obtained; carrying out acid leaching on the water-quenched slag by adopting nitric acid, and carrying out solid-liquid separation to obtain acid leaching liquid and acid leaching slag; the acid leaching residues are subjected to alkaline leaching and solid-liquid separation, and high-titanium residues and alkaline leaching liquid are obtained; adding humic acid, urea, magnesium sulfate and sodium carboxymethyl cellulose into the alkaline leaching solution to obtain a water-soluble silicon fertilizer; wherein the pickle liquor is a valuable metal element recovery raw material; the high titanium slag is a titanium product production raw material; the alkaline leaching liquid is water glass with the silicon content being greater than or equal to 10g / L. Compared with a traditional utilization method, the method has the advantages that refined resource utilization of various valuable components including titanium is achieved, and a high additional value can be generated.

This invention relates to an N-Fe co-doped high-titanium slag-based photocatalytic zeolite, its preparation method, and its application. The method includes the following steps: mixing high-titanium slag powder with ammonium salt and calcining at 300–500°C to obtain a calcined product; subsequently, washing, drying, and grinding to obtain powder A; mixing powder A with an alkali to obtain powder B, then mixing it uniformly with water, and undergoing hydrothermal crystallization, solid-liquid separation, washing, and drying to obtain powder C; mixing powder C with an acidic iron source solution, and undergoing ultrasonic reaction, solid-liquid separation, washing, and drying to obtain N-Fe co-doped high-titanium slag-based photocatalytic zeolite. This invention uses high-titanium slag as the main raw material, mixes it with ammonium salt for high-temperature calcination, then mixes it with an alkali for hydrothermal crystallization, and subsequently reacts it with an iron source to obtain N-Fe co-doped high-titanium slag-based photocatalytic zeolite. This achieves resource utilization of industrial waste, reduces zeolite preparation costs, and the prepared zeolite exhibits good photocatalytic and adsorption performance.

The present application relates to the field of titanium slag smelting and titanium slag preparation of titanium dioxide, and particularly relates to a method for improving acidolysis rate of titanium slag. The method comprises the following steps: step S1, adding the titanium slag after smelting into a cooling device, and the temperature of the added titanium slag is T1; step S2, introducing inert gas into the cooling device to cool the titanium slag once, and the cooling rate is Q1, and the temperature of the titanium slag after the first cooling is T2; step S3, introducing inert gas into the cooling device to cool the titanium slag twice, and the cooling rate is Q2, and the temperature of the titanium slag after the second cooling is T3; step S4, introducing inert gas into the cooling device to cool the titanium slag thrice, and the cooling rate is Q3, and the temperature of the titanium slag after the third cooling is T4; step S5, spraying process water into the cooling device to cool the titanium slag, and when the titanium slag is cooled to T5, the inert gas and the water spraying are stopped, and the cooling of the titanium slag is completed.

The invention relates to the field of metallurgical equipment, and provides an oil pipe folding mechanism device for an opening and plugging machine of a titanium slag electric furnace and the titanium slag electric furnace tapping machine. The oil pipe folding mechanism device comprises a first joint arm, a second joint arm, a support and a hydraulic hose, the first joint arm is rotationally connected with the support, and the second joint arm is rotationally connected with the first joint arm; the hydraulic hose is arranged on the first joint arm and the second joint arm and located on the same side of the first joint arm and the second joint arm, one end of the hydraulic hose communicates with an external hydraulic oil pipe, and the other end of the hydraulic hose is connected with the hydraulic execution element. According to the oil pipe folding mechanism device and the titanium slag electric furnace tapping machine, the first joint arm and the second joint arm support the hydraulic hose and drive the hydraulic hose to move, and the technical problems that in the prior art, hydraulic oil pipes are in disorder and are abnormally damaged are solved.

The invention relates to the technical field of iron-containing mineral treatment, in particular to a method for comprehensively utilizing iron-containing minerals, which comprises the following steps: through the whole-process cooperative treatment of low-temperature weak reduction magnetization, magnetic separation, associated element gradient extraction and tailing gelatinization, iron, titanium and rare earth are respectively collected, and iron can be efficiently and magnetically separated and recycled under the mild condition of lower than 750 DEG C; the energy consumption and the carbon emission are greatly reduced; titanium, manganese and rare earth are clearly separated due to the fact that oxide forms are kept, the rare earth is subjected to normal-temperature leaching and environment-friendly extraction, oxalic acid precipitation closed-loop recovery, and waste liquid is recycled; the magnetic separation tailings and the titanium slag are directly prepared into a high-strength geopolymer gelling material according to the proportion of 7: 3, the tailings are completely converted into building materials or heavy metal contaminated soil remediation filler, a tailing dam is thoroughly omitted, and the risks of dam break and percolation are eradicated; and finally, the high-iron concentrate, the mixed rare earth oxide and the high-added-value gelling material are output, and a virtuous cycle with full utilization of resources, zero emission of waste and win-win economy and environment is formed.

The present application relates to the technical field of metallurgy and chemical industry, and particularly relates to a method for preparing boiling chlorination raw material from titanium slag. The method for preparing boiling chlorination raw material from titanium slag comprises the following steps: S1, pre-treating water-quenched titanium slag at 150-550 DEG C to obtain pre-treated titanium slag; S2, sequentially performing pre-leaching treatment and acid leaching treatment on the pre-treated titanium slag to obtain boiling chlorination raw material. The present application adds a low-temperature pre-treatment step before leaching of the water-quenched titanium slag, reduces the loss of titanium, effectively avoids the pulverization of the product in the subsequent leaching process, improves the titanium yield while ensuring the leaching effect of other impurity elements, reduces the amount of fine powder in the product, thereby improving the grade of TiO2 and meeting the requirements of boiling chlorination raw material; and the preparation method has a short process flow, simple steps and high TiO2 yield.

The present application relates to finished product titanium slag grading equipment process technical field, specifically for a kind of finished product titanium slag grading process, comprising the following steps: titanium slag is sequentially through primary vibrating screen and pre-screen;Again send into fine screen screening;After passing through fine screen, -20 mesh material enters powder concentrator;In powder concentrator, -20 mesh material falls on spreading device;Finally, +20 mesh material enters grinder, 20-160 mesh material enters finished product bin, -160 mesh material is slightly divided by disc screen 20-160 mesh material into finished product bin, -160 mesh material fine powder is packaged handling.The primary vibrating screen, pre-screen and fine screen of the present application are set to pre-screen titanium slag, and the shaking assembly, centrifugal assembly and air blowing assembly provided in the spreading device of powder concentrator are used to disperse titanium slag and form spiral airflow to select powder, thereby improving powder selection efficiency.

The invention discloses a release agent suitable for electric furnace smelting, the release agent comprises water, a base material and an additive, the base material comprises the following raw materials by weight: 10-20 parts of electric furnace fly ash, 50-70 parts of bentonite, and 30-50 parts of diatomite; the additive is a surfactant which accounts for 0.1-0.5% of the mass of the base material. According to the release agent suitable for electric furnace smelting, through the synergistic effect of the electric furnace fly ash, the bentonite, the diatomite and the additive, a more temperature-resistant diaphragm is formed between high-temperature molten iron and a cast iron film, so that high-temperature adhesion between the molten iron produced by an electric furnace and the cast iron film is avoided in the time period when the molten iron is solidified from a liquid state to a solid state; and when the casting mold is applied to a mold cast by a pig machine and with smooth surface of a cast iron block cast in electric furnace smelting of a high titanium slag factory, the demolding rate reaches 100%, and the number of iron adhered to the mold is 0.

The invention relates to the technical field of comprehensive utilization of resources, in particular to a preparation method of aerated concrete based on lithium slag-waste photovoltaic panel-vanadium titanium slag. According to the preparation method, low-carbon powder prepared from steel solid waste, electric power industry solid waste, coal-based solid waste, nonferrous metallurgy solid waste and chemical solid waste is combined with mineral composition and content characteristics of the green low-carbon cement clinker, and replacement of the Portland cement clinker is achieved; chemical solid waste and non-metal mine solid waste are used for replacing all calcium raw materials, namely quick lime; the iron tailings are used as a high-silicon raw material to replace a silicon raw material, namely river sand or fly ash, in traditional production; the non-ferrous industry solid waste (lithium slag) and the electric power industry solid waste (desulfurized gypsum) are used as retarders to replace gypsum in traditional raw materials, through the synergistic effect of the four materials, the prepared autoclaved aerated concrete meets the standard requirement, the utilization rate of industrial solid waste is effectively increased, and the production cost of enterprises is remarkably reduced.

The invention discloses a method for producing high-grade titanium slag by smelting reduction of titanium concentrate, which comprises the following steps: (1) mixing titanium concentrate pellets and coke, adding the mixture into a reduction melting furnace, and adding limestone to control the binary alkalinity of final slag to be 1.13-1.18; and (2) natural gas is injected into a tuyere of the reduction melting furnace, the theoretical combustion temperature of the tuyere is controlled to range from 1900 DEG C to 1950 DEG C, smelting reduction and slag-iron separation are carried out, and then the high-grade titanium slag can be obtained. According to the method, tuyere total oxygen smelting is carried out, and high-melting-point substances TiN and Ti (C, N) are prevented from being formed in a high-temperature area of a hearth in the high-titanium ore smelting process from the source; meanwhile, natural gas is injected through a tuyere, the theoretical combustion temperature is reduced to 1950 DEG C or below through CH4 cracking strong heat absorption, and the amount of titanium entering molten iron through reduction is greatly reduced; the two measures synergistically improve the fluidity of the slag iron and ensure smooth operation of the smelting process. By means of the method, low-carbon smelting of the titanium concentrate can be achieved, and the TiO2 grade of the obtained high-grade titanium slag exceeds 80%.

The application relates to the technical field of materials, in particular to a calcium titan-aluminate refractory material taking aluminum-titanium slag as raw material and a preparation method thereof, which comprises aluminum-titanium slag, industrial alumina, modified zirconium-magnesium powder, modified lanthanum-yttrium powder, active alumina and boric acid. The modified zirconium-magnesium powder and the modified lanthanum-yttrium powder are used to resist fluorine ion erosion in cooperation, and the active alumina is used to enhance the fluorine resistance function of the modified powder, so that the fluorine resistance of the calcium titan-aluminate refractory material in a fluorine-rich refining slag environment is improved, and the service life of the calcium titan-aluminate refractory material is prolonged compared with conventional calcium titan-aluminate refractory materials.

This invention provides a method for improving the viscous flow characteristics and increasing the carbonization rate of high-titanium slag during the carbonization process, belonging to the field of metallurgical resource comprehensive utilization technology. The steps include: classifying the carbonaceous reducing agent into three particle sizes: fine, medium, and coarse; heating the high-titanium slag to a molten state in an induction furnace and adding the fine-particle carbonaceous reducing agent for initial reaction; then adding the medium-particle carbonaceous reducing agent for further reaction, while continuously blowing inert gas above the molten pool; finally adding the coarse-particle carbonaceous reducing agent for further reaction, while intermittently blowing inert gas above the molten pool; after the reaction is completed, a high-titanium slag carbonization product with improved viscous flow characteristics and increased carbonization rate is obtained. The method provided by this invention achieves improved viscous flow characteristics of the high-titanium slag melt, reduced foaming slag, reduced reducing agent dosage, and increased carbonization rate through the synergistic effect of carbonaceous reducing agent particle size classification, staged feeding, induction furnace melting, and inert gas stirring.

The invention relates to the technical field of solid waste recycling, in particular to a method for preparing an aerated concrete wallboard from waste aerated concrete, vanadium-titanium slag and lithium slag. The low-carbon powder is prepared from building solid waste, steel solid waste, electric power industry solid waste, coal-based solid waste and urban solid waste, and replacement of Portland cement clinker is achieved; chemical solid wastes are used for replacing all calcium raw materials, namely quick lime; waste aerated concrete and inactivated ZSM-5 are used as high-silica raw materials to replace a silica raw material, namely river sand or fly ash, of a traditional autoclaved aerated concrete plate; solid waste in the nonferrous industry and solid waste in the chemical industry are used as retarders to replace gypsum in traditional raw materials; the pretreated bamboos are adopted as the bamboo reinforcements to replace a steel reinforcement framework, the utilization rate of industrial solid waste is effectively increased, the bamboo is used for replacing steel reinforcements in traditional aerated concrete slab production, the production cost of enterprises is remarkably reduced, and economic benefits and social and environmental benefits are remarkably improved.

The invention relates to the technical field of titanium dioxide production, and provides a solidification regulation and control method for improving titanium slag acidolysis efficiency, which comprises the following steps: controlling the solidification cooling process of a titanium slag melt, cooling at a first cooling rate in a first temperature interval of anosovite phase precipitation and growth, and cooling at a second cooling rate in a second temperature interval of pyroxene phase precipitation and growth, cooling at a second cooling rate; wherein the lower temperature limit of the first temperature interval is not lower than the upper temperature limit of the second temperature interval, and the first cooling rate is larger than the second cooling rate. According to the scheme, the cooling technology matched with the precipitation growth rule of the anosovite phase and the pyroxene phase in the titanium slag is accurately controlled, the problems that solidification is uncontrollable and phase growth is poor due to an existing single cooling mode are solved, the distribution form and the interface bonding state of the two phases are optimized, and the acidolysis efficiency of the titanium slag is greatly improved.

The invention discloses an energy-saving high titanium slag raw material pretreatment device, and belongs to the technical field of high titanium slag treatment.The energy-saving high titanium slag raw material pretreatment device comprises a drying furnace, a driving assembly is installed on the drying furnace and comprises a driving motor fixedly installed at the upper end of the drying furnace, a driving rod is fixedly installed at the output end of the driving motor, and a spiral piece is fixedly installed on the outer wall of the middle of the driving rod; a lifting plate is installed on the lower side of the interior of the drying furnace, a sleeve is fixedly installed at the upper end of the lifting plate, and a driving assembly is installed on the lower side of a driving rod. And the materials are thrown again by the raising plate which ascends and descends in a reciprocating manner in the falling process, so that the exposed area and mutual gaps of the materials can be increased, hot air can be in sufficient and uniform contact with the materials, the problems of local excessive drying and incomplete drying are effectively avoided, and the quality of the raw materials in subsequent procedures is guaranteed.

The invention discloses a total recovery method for valuable components in low-grade vanadium titano-magnetite based on hydrogen metallurgy, and belongs to the technical field of comprehensive utilization of metallurgical resources. According to the method, vanadium titano-magnetite oxidized pellets serve as raw materials, low-temperature selective reduction is carried out under the pure hydrogen atmosphere, and metallized pellets with the metallization ratio ranging from 88% to 94% are obtained; then the metallized pellets are fed into a multi-electrode electric melting furnace for melting separation, and efficient separation of molten iron and vanadium-rich titanium slag is achieved through optimized arrangement of an electrode array and precise injection of a flux; the vanadium-rich titanium slag is roasted through a complexing agent, so that vanadium is converted into water-soluble vanadate, then vanadium is extracted through normal-pressure acid leaching, and a vanadium product and the titanium-rich slag are obtained. Through system integration of three technologies of hydrogen metallurgy reduction, electric melting furnace melting separation and wet vanadium extraction, efficient separation and all-component recovery of iron, vanadium and titanium are achieved, and the method has the outstanding advantages of being short in process, low in energy consumption, small in pollution, high in resource utilization rate and the like, and is particularly suitable for green and efficient utilization of low-grade vanadium titano-magnetite.

This application relates to the field of hydrometallurgical technology and discloses a method for treating red mud. The method includes: treating red mud with sulfuric acid solution to remove sodium, obtaining sodium sulfate washing solution and sodium-removed slag; performing a first-stage leaching treatment on the sodium-removed slag to obtain a first-stage leachate and a first-stage leaching residue; performing a second-stage leaching treatment on the first-stage leaching residue to obtain a second-stage leachate and a second-stage leaching residue, wherein the second-stage leaching residue includes iron-calcium slag; introducing sulfur dioxide into the first-stage leachate for reduction treatment to obtain a reduced solution; reacting the reduced solution with ferrous carbonate for titanium precipitation treatment to obtain a titanium-precipitated solution and titanium slag; reacting ammonia water with the titanium-precipitated solution for aluminum precipitation treatment to obtain an aluminum-precipitated solution and aluminum hydroxide slag; and introducing oxygen into the aluminum-precipitated solution for iron precipitation treatment to obtain hematite slag and an iron-precipitated solution. This method achieves efficient recovery of resources from red mud.

The application relates to a preparation method of a magnesium-carbon refractory material with added titanium boride for enhancing resistance to acid high-titanium slag corrosion, and belongs to the field of refractory materials. The magnesium-carbon refractory material is prepared by taking magnesite and flake graphite as main raw materials and directly introducing titanium boride powder as a functional additive phase. The introduced titanium boride can effectively improve the matrix structure and interface state of the magnesium-carbon refractory material, improve the penetration resistance and chemical corrosion resistance of the material under the action of acid high-titanium slag, and also consider the oxidation resistance and high-temperature service stability of the material. After the magnesium-carbon refractory material is added, the microstructure and interface state of the material can be effectively improved, the penetration and chemical corrosion of the acid high-titanium slag on the material are slowed down; meanwhile, the titanium boride and the magnesium-carbon system synergistically act, which is helpful to improve the structural compactness, slag corrosion resistance and high-temperature service stability of the material, so that the obtained magnesium-carbon refractory material is more suitable for acid high-titanium slag working conditions such as a vanadium and titanium extraction smelting separation furnace, the process flow is simple, and the preparation cost is low.

The invention relates to N-Fe co-doped high-titanium slag-based photocatalytic zeolite and a preparation method and application thereof.The preparation method comprises the following steps that high-titanium slag powder and ammonium salt are mixed and calcined at the temperature of 300-500 DEG C to obtain a calcined product, and then the calcined product is washed, dried and ground to obtain powder A; mixing the powder A with alkali to obtain powder B, uniformly mixing the powder B with water, and performing hydrothermal crystallization reaction, solid-liquid separation, washing and drying to obtain powder C; and mixing the powder C with an acidic iron source solution, and carrying out ultrasonic reaction, solid-liquid separation, washing and drying to obtain the N-Fe co-doped high titanium slag-based photocatalytic zeolite. According to the preparation method, the high titanium slag is taken as a main raw material and is mixed with the ammonium salt for high-temperature calcination, then is mixed with the alkali for hydrothermal crystallization, and then reacts with the iron source to prepare the N-Fe co-doped high titanium slag-based photocatalytic zeolite, so that resource utilization of industrial waste residues is realized, the preparation cost of the zeolite is reduced, and the prepared zeolite is good in photocatalytic performance and adsorption performance.

The application discloses a process for preparing a fluidized chlorination furnace charge by ilmenite concentrate concentration and electric furnace smelting, which comprises the following steps: S1, analyzing the element distribution state of ilmenite concentrates from different regions, and selecting ilmenite concentrates with magnesium element content in ilmenite phase lower than 0.5% as raw materials for concentration; S2, removing impurities by concentration after grinding treatment of the ilmenite concentrates selected in S1 to obtain high-quality titanium concentrate; and S3, smelting the high-quality titanium concentrate obtained in S2 by an electric furnace to obtain high-titanium slag meeting the requirements of the fluidized chlorination furnace charge. The high-titanium slag obtained by smelting the high-quality titanium concentrate by the electric furnace does not need to be subjected to impurity removal treatment, and qualified fluidized chlorination furnace charge can be obtained, the beneficiation method for removing impurities is low in cost and short in process, the safe supply of raw materials for the fluidized chlorination production of China is ensured, and the process has important significance for promoting the development of the titanium industry of China.

This invention belongs to the field of vanadium-titanium slag comprehensive utilization technology, specifically disclosing a method for recycling and recovering vanadium from vanadium-containing secondary resources. The method includes the following steps: mixing vanadium-containing secondary resources with flux, smelting and forming slag in a smelting pool to obtain molten vanadium-containing slag; adding high-carbon molten iron to the molten vanadium-containing slag and mixing, then injecting reducing gas or argon into the smelting pool; after injection, allowing the mixture to settle and smelt for collection, separating the slag and iron to obtain vanadium-containing molten iron and low-vanadium slag; using a converter vanadium extraction process to obtain high-vanadium slag and molten iron, with the high-vanadium slag used for vanadium extraction. This invention also utilizes a molten iron carburizing and recycling vanadium collection process to further collect vanadium from the incompletely collected low-vanadium slag, significantly improving vanadium recovery efficiency and reducing resource waste. This invention features a short process, high recovery rate, low production cost, and low pollution. The obtained high-vanadium slag can be used for vanadium extraction using existing mature processes, thereby achieving efficient extraction and utilization of vanadium from vanadium-containing secondary resources.

The application discloses a low-sulfur ilmenite beneficiation separation process and a method for preparing high-purity iron by using the ilmenite, and belongs to the technical field of mineral processing and metallurgy. A raw material with TiO2 grade of 18-20% is added with a flotation reagent H2SO4, butyl xanthate and a foaming agent for flotation desulfurization, the desulfurization tailings are subjected to four times of scavenging desulfurization, and the reagent added in each scavenging desulfurization is butyl xanthate and a foaming agent; the desulfurization tailings are subjected to flotation titanium selection to obtain titanium concentrate and titanium tailings. The titanium concentrate is subjected to electric furnace smelting to obtain high-titanium slag and molten iron; and the molten iron is subjected to vacuum refining to obtain high-purity iron. The application reduces the content of harmful elements S, Co, Ni and Cu in the ilmenite as much as possible from the smelting raw material end by combining mineral processing and smelting, thereby reducing the difficulty of subsequent smelting treatment, achieving the technical target of effectively separating the ilmenite, and further meeting various industrial high-end requirements.

The utility model discloses a water spray cooling mechanism for high titanium slag production, which relates to the technical field of high titanium slag production and comprises a workbench, corresponding baffles are arranged at two ends of the upper side of the workbench, a conveying belt is mounted on the workbench, a shell is arranged on the upper sides of the pair of baffles, and a feeding port and a discharging port are arranged at two ends of the shell. A driving structure is installed on the outer side of the shell, and a spraying structure is installed in the shell. When the high-titanium slag cooling device is used, high-titanium slag is discharged through the discharging pipe of the electric furnace, falls on the 1 / 3 position of the middle of the conveying belt, is located on the heat-resisting material and is conveyed into the shell through the conveying belt, and during cooling, the water pipes swing in a reciprocating mode to conduct comprehensive spraying cooling on the high-titanium slag on the conveying belt; the whole cooling process is carried out in the shell, dust, steam and the like generated by cooling the high temperature are prevented from being diffused in the air, and corrosion and abrasion of the high temperature to equipment are reduced by reducing the temperature of the high titanium slag.