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85 results about "Spodumene" patented technology

Spodumene is a pyroxene mineral consisting of lithium aluminium inosilicate, LiAl(SiO₃)₂, and is a source of lithium. It occurs as colorless to yellowish, purplish, or lilac kunzite (see below), yellowish-green or emerald-green hiddenite, prismatic crystals, often of great size. Single crystals of 14.3 m (47 ft) in size are reported from the Black Hills of South Dakota, United States.

Spodumene flotation tailing water treatment equipment

The invention relates to the technical field of sewage treatment, and discloses spodumene flotation tailing water treatment equipment which comprises a plate-and-frame filter press and a feed flow real-time control system electrically connected with the plate-and-frame filter press. According to the system, a slurry characteristic coefficient, a power supply coefficient, a dynamic matching coefficient and a filter cloth state coefficient are respectively obtained in real time through a slurry state evaluation module, a power evaluation module, a process dynamic matching module and a filter cloth state evaluation module. And dynamically calculating and adjusting the target feeding flow by the feeding flow adjusting and controlling model according to the coefficients. According to the invention, through multi-parameter collaborative sensing and intelligent matching, the dynamic adaptation of the feed flow, the slurry characteristics, power supply and the state of the filter cloth is realized, the technical problems of poor adaptability, control lag, easy damage of the filter cloth and high energy consumption of the traditional plate-and-frame filter press under complex working conditions are effectively solved, and the treatment efficiency and the operation stability are remarkably improved.
Owner:JIANGXI JINHUI RECYCLING RESOURCES CO LTD

Efficient treatment device for multiple pollutants in lepidolite and spodumene roasting flue gas

The utility model discloses a lepidolite spodumene roasting flue gas multi-pollutant efficient treatment device which comprises a high-temperature dust removal and denitration integrated tower, a fan, a flue gas deacidification tower and a flue gas heat exchanger, the high-temperature dust removal and denitration integrated tower is communicated with a kiln tail of a roasting kiln, and a cooling section of the flue gas heat exchanger is communicated with the high-temperature dust removal and denitration integrated tower and the fan. Flue gas is subjected to heat exchange in the cooling section and then conveyed to the flue gas deacidification tower through a fan, a gas outlet of the flue gas deacidification tower is communicated with the heating section of the flue gas heat exchanger, the flue gas is subjected to heat exchange with flue gas of the high-temperature dust removal and denitration integrated tower in the flue gas heat exchanger to be heated, and the flue gas is discharged through a chimney communicated with the heating section on the flue gas heat exchanger. The device disclosed by the utility model can be used for cooperatively treating various pollutants including dust, SO2, HF, HCL, nitrogen oxides, dioxin, heavy metals and the like, so that high-efficiency treatment on flue gas is realized, and good economic benefits are achieved.
Owner:MOUNTOP GRP CO LTD +1

Low-temperature-resistant spodumene flotation collector as well as preparation method and application thereof

The invention discloses a low-temperature-resistant spodumene flotation collector as well as a preparation method and application thereof, and relates to the technical field of mineral flotation. The flotation collecting agent is prepared from the following raw materials in percentage by mass: 60%-80% of an anionic fatty acid collecting agent, 5%-20% of a sulfonate auxiliary collecting agent, 5%-15% of a hydroximic acid auxiliary collecting agent and 3%-15% of a nonionic surfactant. The flotation collecting agent still has excellent collecting performance and selectivity under the low-temperature condition of 6 DEG C, the problem that the low-temperature activity of a conventional flotation collecting agent is suddenly reduced is effectively solved, pre-desliming or calcium chloride activation is not needed when the flotation collecting agent is used, the process is simple, the cost is low, and the flotation collecting agent is suitable for industrial flotation of spodumene ore.
Owner:KUNMING UNIV OF SCI & TECH

Energy-saving boiler and spodumene brine thallium removal process

The invention provides an energy-saving boiler and a thallium removal process for spodumene brine. Relates to the field of energy-saving boilers. The furnace body is fixedly mounted at the bottom of the inner wall of the isolation box through a bracket; and the top cover is fixedly mounted at the top of the furnace body. According to the energy-saving boiler and the spodumene brine thallium removal process provided by the invention, water is injected into the boiler body by arranging the water delivery pump, and external high-temperature flue gas sequentially flows through the plurality of heating pipes, so that layered and stepped uniform heating of the water body in the boiler body is realized, the heat energy utilization efficiency is remarkably improved, and the energy is saved; smoke flows step by step in the heating pipe and is finally discharged, the flow speed of the smoke is reduced, heat is fully exchanged, the smoke discharging temperature is reduced, meanwhile, the water suction pump continuously and stably outputs hot water at the constant temperature of 40 DEG C to the constant-temperature water bath, stability of the water supply temperature is guaranteed, operation is energy-saving, and the automation degree is high.
Owner:FENGCHENG JIULING LITHIUM IND CO LTD

Method for extracting lithium from spodumene acid through microwave and ultrasonic wave synergistic enhancement

The invention belongs to the technical field of mineral processing and metallurgical engineering, and particularly relates to a method for extracting lithium from spodumene by acid leaching through microwave and ultrasonic wave synergistic enhancement. The method comprises the following steps: taking beta-spodumene as a raw material, grinding the beta-spodumene, mixing the grinded beta-spodumene with concentrated sulfuric acid and phosphoric acid, carrying out rapid sulfating roasting under microwave heating, placing the obtained roasted clinker in a persulfate solution, and carrying out short-time water leaching under the assistance of ultrasonic waves to realize efficient leaching of lithium. Wherein the dissolution of impurities such as iron and aluminum can be selectively inhibited by adding phosphoric acid, and the mass transfer barrier of lithium ion dissolution can be effectively destroyed by the cooperation of persulfate and the ultrasonic cavitation effect. According to the method, water leaching can be completed within 2-5 minutes, the lithium leaching rate exceeds 97%, the impurity content is low, energy consumption and acid consumption are small, and the method is suitable for continuous clean production.
Owner:NORTHEASTERN UNIV CHINA

A rotary kiln device for roasting of reconditioning slag and lithium spodumene / battery powder

PendingCN122360105AChemical reactionFluid phase
The present application relates to a kind of rotary kiln device of overhauling slag and lithiumite / cell powder calcination, it is related to rotary kiln related technical field, including supporting platform, feeding equipment, built-in cylinder, sliding groove, cylinder, built-in groove, anti-conclusion component, convex drag reduction component, extrusion type gas blowing component, cleaning component, the present application can solve in the mixed calcination process of overhauling slag and lithiumite / cell powder, fluoride in overhauling slag, cryolite and metal salt in cell powder, under high temperature environment of 800-1000 ℃, complex physical and chemical reaction occurs easily, form low melting point eutectic liquid phase, these liquid phase material has extremely high viscosity, surface tension and adhesion, will firmly adhere to kiln wall, only rely on gravity, these melts can only extremely slowly "creep" or "slip" on kiln wall surface, its root firmly adheres to the surface of heat-resistant layer, when kiln body rotates and it enters high temperature zone again, these melts will be re-baked hard, cause ring problem.
Owner:HENGYANG CHENGYU ZINC PROD CO LTD

Plastic refractory for LF (ladle furnace) and production method of plastic refractory

The invention discloses an LF refining furnace plastic refractory and a production method thereof, and relates to the technical field of plastic manufacturing. The LF refining furnace plastic refractory is prepared from the following components in parts by weight: 60-75 parts of seawater magnesia particles, 5-8 parts of seawater magnesia ultrafine powder, 5-8 parts of an aluminum sulfate solution, 4-8 parts of acetylated castor oil, 5-8 parts of east mud, 1-3 parts of spodumene, 2.5-3.5 parts of ammonium magnesium phosphate whiskers, 1-2 parts of liquid raw molasses, 2-4 parts of silica fume, 1-2 parts of amino phenolic resin powder, 1-1.5 parts of sodium hexametaphosphate and 0.5-1 part of British glue. According to the plastic refractory for the LF refining furnace, the seawater magnesia particles with specific particle size distribution serve as aggregate, close packing and basic fire resistance of the material are ensured, the seawater magnesia ultrafine powder and the ammonium magnesium phosphate whiskers are matched, the high-temperature breaking strength and toughness of the material are improved, and the final product has excellent plasticity.
Owner:YINGKOU QINGHUA GRP

Waste calcium carbide remelting, upgrading and conveying device

The utility model provides a waste calcium carbide remelting and upgrading conveying device, which belongs to the technical field of conveying devices, and comprises a crushing chamber, a rotator arranged in the crushing chamber, two first rotating shafts rotationally connected in the rotator, two crushers fixedly connected to the lower ends of the two first rotating shafts, and two second rotating shafts rotationally connected in the two crushers. The two first gears are fixedly connected to the circumferential surfaces of the two first rotating shafts, the gear ring is fixedly connected to the interior of the crushing chamber, and the first gears are meshed with the gear ring. Meanwhile, powder calcium carbide directly reaches the furnace bottom through the inside of the electrode and does not make contact with a furnace charge layer, current shunting is eradicated, waste products are directly added to the furnace bottom after being powdered and can be rapidly reacted and fused with semi-finished product calcium carbide, and electric energy consumption is greatly reduced.
Owner:FENGZHEN CITY JIA SILICON MENG ALLOY CO LTD

Lithium slag-based polymer microsphere composite phase change energy storage material and preparation method thereof

The application provides a composite phase change energy storage material using spodumene lithium extraction tailings (lithium tailings) as a carrier and a preparation method thereof. The geopolymer microspheres are prepared by a dispersion suspension method, and are washed, dried and calcined. Then, through heating and vacuum impregnation, the phase change energy storage material is stably encapsulated in the geopolymer microspheres, and a shaped composite phase change energy storage material is obtained. The application not only provides a phase change energy storage material with large heat storage capacity, excellent encapsulation performance, good chemical stability, strong anti-leakage capacity, strong cycle stability, strong heat conduction capacity and good light-heat conversion capacity, but also provides a new high-value utilization method of spodumene lithium extraction tailings.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY

High-simulation and high-performance stone-imitating bright ceramic tile and preparation method thereof

PendingCN121948936ARealize full-dimensional physical reproductionhigh strengthClaywaresGlazeSilicic acid
The invention discloses a high-simulation and high-performance stone-imitating bright ceramic tile which sequentially comprises a high-strength green body layer, a functional ground glaze layer, a multi-mode digital texture layer, an interface strengthening-optical adaptation transition layer and a high-transmittance protective glaze layer from bottom to top. The raw materials of the high-strength green body layer comprise spodumene tailing powder and a compound of zirconium silicate and zinc oxide serving as a sintering aid, the water absorption rate is smaller than or equal to 0.2% after sintering, the fracture modulus is larger than or equal to 42 MPa, the high-strength green body layer is covered with the functional ground coat layer, and the raw materials of the functional ground coat layer comprise a porous forming agent and active components capable of reacting with follow-up ink. According to the invention, through multi-modal data acquisition and morphology channel printing, full-dimensional physical recarving of natural stone from macroscopic color veins to micro-crystal fluctuations is realized, and high-refractive-index ink and an interface strengthening-optical adaptation transition layer are combined, so that the appearance of the natural stone is enhanced. The product can present the specific deep feeling, moist feeling and mineral crystal flash of natural stone under any illumination, and the vivid degree which is difficult to distinguish by naked eyes is achieved.
Owner:GAOAN LUOSIFU CERAMIC

Method for extracting lithium sulfate from high-iron spodumene concentrate

The invention discloses a method for extracting lithium sulfate from high-iron spodumene concentrate, which comprises the following steps: mixing high-iron spodumene concentrate, sulfate and carbonate, and processing to obtain powder; the mass ratio of the high-iron spodumene concentrate to the sulfate to the carbonate is 1: (0.3-0.8): (0.01-0.5); the powder is subjected to brick pressing forming, a powder green brick is obtained, and the powder green brick is dried and roasted at the temperature of 900-1050 DEG C; cooling and crushing the roasted powder green brick to obtain a roasted particle material; adding water into the roasted particle material, carrying out ball milling, and leaching to obtain a leaching solution and leaching residues; and carrying out purification and concentration treatment on the leachate to obtain the lithium sulfate. By implementing the method, the interference of iron impurities can be eliminated, and the cost is reduced while the lithium recovery rate is improved.
Owner:FUJIAN YUANTONG TIMES NEW MATERIALS CO LTD

African spodumene beneficiation process and system

The invention belongs to the field of new energy, and discloses an African spodumene beneficiation process which comprises the following steps: step 1, crushing African spodumene ore to obtain a crushed product; step 2, carrying out ball milling on the crushed product to obtain a ball-milled product; 3, light components and heavy components in the ball-milling product are separated, and a first light component and a first heavy component are obtained; 4, at least part of mica particles in the first light component are removed, and slurry is obtained; step 5, removing slime in the slurry to obtain a second heavy component; and step 6, carrying out first flotation treatment and second flotation treatment on the second heavy component. According to the process, ball milling is conducted firstly, then large-particle mica is removed, then desliming is conducted, and finally flotation of mica and spodumene lithium concentrate is conducted, the problem that spodumene is difficult to be smoothly sorted due to the fact that the mica content is too high and the ore mud content is large is solved, compared with a traditional process, the recovery rate of the lithium concentrate is increased by 2%-6%, and the operation recovery rate of spodumene is higher than 70%. Meanwhile, the invention further discloses a system suitable for the process.
Owner:JIUJIANG TINCI RESOURCE RECYCLING TECHNOLOGY CO LTD

Method for producing lithium solution

A method for producing a lithium solution according to the present disclosure comprises igniting a mixture of alpha-spodumene and metallic aluminum to cause a thermite reaction and bringing the reaction product into contact with a leaching agent to obtain a lithium solution. The leaching agent may be water or sulfuric acid. When the leaching agent is water, it is also possible to obtain a lithium solution by bringing water into contact with the reaction product without subjecting the reaction product to a sulfation treatment.
Owner:PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD

Glaze for preventing deformation of ceramic tiles and anti-deformation ceramic tile

ActiveCN117865485BImprove flexural strengthHigh degree of sinteringCarbon nanotubesCeramic materials productionPyrophylliteGlaze
This invention belongs to the field of building materials technology. Specifically, it discloses a glaze for preventing ceramic tile deformation and an anti-deformation ceramic tile, comprising the following raw materials in parts by weight: 15-30 parts spodumene, 15-30 parts calcite, 12-20 parts bauxite, 8-15 parts pyrophyllite, 6-12 parts modified magnesium borate whiskers, 5-9 parts wet-process mica powder, 3-6 parts palygorskite, 1-2.5 parts calcium borate, 1-2 parts tricalcium silicate, and 0.2-0.7 parts ammonium fluoride. The system of this invention uses spodumene, calcite, bauxite, and pyrophyllite as the matrix minerals, effectively lowering the sintering temperature and providing basic strength to the system. At a lower firing temperature, a high degree of sintering of the glaze layer can be ensured, preventing sintering failure of other materials. By adding modified magnesium borate whiskers and wet-process mica powder, the flexural strength is effectively improved.
Owner:GUANGDONG OVERLAND CERAMICS CO LTD

Method for preparing high-thickness low-temperature binder grinding roll ceramic abrasive tool

The application provides a preparation method of a high-thickness low-temperature binder grinding roller needle ceramic grinding tool, and the binder is composed of 10-17% of superfine black clay powder, 35-45% of low-melting-point superfine glass material, 5-10% of nano silicon dioxide, 1-3% of superfine spodumene and 25-49% of superfine feldspar powder, and the low-melting-point superfine glass material is composed of 44-46% of silicon dioxide, 18-20% of aluminum oxide, 1-2% of magnesium oxide, 11-13% of sodium oxide and 16-20% of boron trioxide; the preparation method of the high-thickness low-temperature binder grinding roller needle ceramic grinding tool can reduce the sintering temperature during the production of the grinding tool, realize low-temperature sintering of the binder, avoid the situation that the high-thickness grinding tool is prone to collapse and black core at 1200-1300 DEG C, and reduce the production energy consumption.
Owner:BAIGE ABRASIVES CO LTD

Process for the extraction of pure minerals of spodumene

The application discloses a process method for extracting pure spodumene minerals, which comprises the following steps: anti-pollution crushing and weak magnetic impurity removal; strong magnetic separation of +0.15 mm sieve product for impurity removal; regrinding of +0.15 mm particle size spodumene strong magnetic separation concentrate product; fine particle product strong magnetic separation operation; screening and grading of the strong magnetic separation spodumene concentrate; super-shaking table gravity separation; and acid leaching depth impurity removal. The application adopts the combined process of magnetic separation-gravity separation-acid leaching to extract pure spodumene minerals, and has the characteristics of good purification effect, high purity of the pure minerals, simple operation, environmental protection and no pollution.
Owner:ZIJIN MINING GROUP CO LTD +1

High-hardness wear-resistant thin rock plate and preparation method thereof

The invention relates to the technical field of architectural ceramics, and discloses a high-hardness wear-resistant thin rock plate and a preparation method thereof. The rock plate is prepared from an aggregate component, a plastic component and a surface functionalization modified pre-activated fluxing agent according to a specific ratio. The surface functional modified pre-activated fluxing agent is prepared by the following steps: melting raw materials such as potassium feldspar, spodumene and borocalcite at a high temperature, carrying out water quenching to prepare pre-activated fluxing agent glass frits, crushing the glass frits, and carrying out surface modification on powder particles of the glass frits by adopting an organic silane coupling agent. The preparation method comprises the steps of mixing and ball milling, spray drying, compression molding and heat treatment comprising specific heating, heat preservation and segmented cooling systems. According to the preparation method, the fluxing agent is subjected to dual treatment of pre-activation and surface functional modification, so that uniform dispersion and high sintering activity of the fluxing agent in the blank are ensured, and the finally prepared rock plate product is high in density and low in water absorption rate and has relatively high fracture modulus, Mohs hardness and wear resistance.
Owner:FOSHAN SHI WAN YING BRAND CERAMICS CO LTD

Amidated carboxylic compounds, collectors for spodumene flotation, and methods of making and using the same

The application belongs to the technical field of mineral processing, and discloses an amidated carboxylic compound, a collecting agent for spodumene flotation, a preparation method of the collecting agent and application of the collecting agent in spodumene flotation. The amidated carboxylic compound is obtained by the reaction of an amino acid, acyl chloride and sodium hydroxide, is resistant to acid and alkali at normal temperature, is not easy to decompose, and can improve the selectivity of the collecting agent. The collecting agent comprises 30-45 parts of the amidated carboxylic compound, 5-15 parts of oleic acid, 3-10 parts of inorganic alkali and 10-25 parts of an alcohol compound. The collecting agent has good dispersibility, foaming capacity and the ability to inhibit gangue, feldspar and quartz minerals, has good collecting effect on spodumene at room temperature, significantly improves the selectivity of the ore, ensures the concentrate grade of spodumene, improves the recovery rate, and has good application effect in spodumene flotation.
Owner:CHANGSHA RES INST OF MINING & METALLURGY CO LTD

Technological method for preparing sintered pavement brick through low-temperature slow firing

The invention discloses a process method for preparing sintered pavement bricks by low-temperature slow firing, which is characterized in that mill tailings and clay auxiliary materials are used as main raw materials, the main components of the tailings are quartz and feldspar, the content of the feldspar is not less than 30%, and the auxiliary materials contain at least one clay mineral of kaolinite, chlorite and montmorillonite; mixing the tailings and auxiliary materials according to the weight ratio of (6: 4)-(9: 1), and adding water and a fluxing agent to obtain a mixture, wherein the fluxing agent is selected from industrial solid wastes such as boric sludge, lithium slag or spodumene tailings; pressing and forming the mixture to obtain a green body, drying the green body to constant weight, finally sintering by adopting a low-temperature slow sintering process, controlling the sintering temperature at 900-1000 DEG C, and cooling along with a furnace after heating and heat preservation stages to obtain a finished product. According to the invention, industrial solid waste is used as a raw material, and the sintered pavement brick with the compressive strength reaching the standard is prepared while the energy consumption is reduced through an optimized raw material ratio and a low-temperature sintering process, so that the unification of solid waste recycling, energy conservation and consumption reduction and high performance of a product is realized.
Owner:JIXI CITY PU CHENG GRAPHITE CO LTD +1

A resin sand casting method for axle housing castings

The application provides a resin sand casting method of a bridge housing casting, belongs to the casting technical field, and the casting method comprises casting and process design, mold and sand core manufacturing, closing and pouring preparation, smelting and pouring, cooling, sand falling and cleaning, heat treatment and finishing, and old sand regeneration. The casting resin sand comprises water-washed quartz sand, biomass modified furan resin, HTAM high-temperature-resistant and migration-resistant modifier, p-toluenesulfonic acid, aluminum dihydrogen phosphate, lactic acid, ammonium bicarbonate, polystyrene, expandable graphite, silane coupling agent, mica powder, calcined kaolin and spodumene powder. The biomass modified furan resin is prepared by the reaction of furfuryl alcohol, bio-based polyol, urea, phenol and p-toluenesulfonic acid and the addition of KH-550. The HTAM high-temperature-resistant and migration-resistant modifier is prepared by the reaction of KH-570 modified activated ceramic microbeads, pyromellitic dianhydride and 4,4'-diamino diphenyl ether and heat treatment.
Owner:DANDONG JINTIAN MASCH CO LTD

Domestic ceramic resistant to open fire firing and quenching and preparation method thereof

PendingCN122071394ASilicic acidKaolin clay
The invention belongs to the technical field of domestic ceramics, and discloses an open fire ignition and quenching resistant domestic ceramic and a preparation method thereof. The domestic ceramic resistant to open fire firing and quenching is prepared from kaolin, bentonite, clay, electroquartz, aluminum oxide, nano zirconium silicate, sodium silicate, a sodium hydroxide solution, sodium humate, ammonium chloride, spodumene, lithium carbonate and deionized water, dry powder and slurry are evenly mixed and stirred, then mechanical pressing is conducted, and a complete ceramic body is obtained; according to the preparation method disclosed by the invention, the raw material ratio and the sintering process are optimized, open fire firing resistance and quenching resistance are synergistically improved, thermal shock resistance is enhanced by controlling the crystallinity of the raw materials, and meanwhile, a composite additive is introduced to improve a high-temperature phase change behavior; and the cost is effectively reduced and the process steps are simplified while large-scale production is realized.
Owner:邵雪梅

Method for extracting lithium and rubidium by low-temperature calcination of composite salt and application thereof

PendingCN122279192ARubidiumPhysical chemistry
This invention provides a method for extracting lithium and rubidium from lithium using a composite salt at low temperature and its application, belonging to the field of valuable metal extraction technology. The method uses spodumene as raw material, adding a composite salt system composed of K₂CO₃, KOH, and Ca(OH)₂, and calcining it at low temperature. This disrupts the spodumene crystal structure, transforming it into an easily leached active phase. The calcined product is then subjected to water leaching, achieving synergistic and efficient leaching of lithium and rubidium. Compared with existing technologies, this invention features a lower calcination temperature and higher lithium and rubidium leaching rates (>90%). Furthermore, the water leaching method is less corrosive and introduces fewer impurities compared to acid leaching systems, facilitating selective leaching of lithium and rubidium and simplifying subsequent separation and purification processes, demonstrating promising industrial application prospects.
Owner:CENT SOUTH UNIV

Heat exchange type roasting device and process for extracting lithium from spodumene

The invention provides a heat exchange type roasting device and a process for extracting lithium from spodumene, and relates to the technical field of waste heat exchange and utilization, the heat exchange type roasting device comprises a roasting furnace, a bent pipe, a heat exchange mechanism and a communicating mechanism; the bent pipe is installed above the roasting furnace, the heat exchange mechanism comprises a heat exchange box installed at the top of the roasting furnace, a heat exchange pipe is installed in the heat exchange box, and a water inlet pipe and a water outlet pipe are installed at the left end and the right end of the heat exchange pipe in a sealed mode respectively. According to the scheme, the heat load requirement can be accurately matched, the size of the inlet hole is adjusted according to the actual requirement of the heat exchange box, excessive or insufficient waste heat supply is avoided, meanwhile, the heat utilization accuracy is improved, the heat exchange efficiency is optimized, the flow speed and flow of a high-temperature medium are controlled by adjusting the inlet hole, the retention time of the medium in the heat exchanger is more reasonable, and the heat transfer efficiency is improved; waste and excessive consumption of waste heat can be avoided, the size of an inlet hole is adjusted to be matched with a heat load, and when heat needed by follow-up equipment is reduced, redundant waste heat is prevented from being directly discharged.
Owner:JIANGXI FEIYU NEW ENERGY TECH CO LTD

Magnesium removal method for lithium leaching solution with high magnesium content

PendingCN121976058AProcess efficiency improvementLithium sulphateHigh magnesium
The invention discloses a magnesium removal method for a high-magnesium-content lithium leaching solution. The high-magnesium-content lithium leaching solution is a lithium sulfate solution obtained by roasting, acidifying, leaching and impurity removal of spodumene ore; the magnesium removal method comprises the following steps: introducing a sodium hydroxide solution into the lithium leaching solution with high magnesium content, synchronously adding calcium hydroxide and magnesium hydroxide seed crystals, and carrying out solid-liquid separation by using a filtering device after complete reaction. By optimizing the reaction raw materials and controlling and adjusting the process, the magnesium removal and filtration efficiency can be obviously improved under the condition that the equipment process flow is not adjusted on a production line, so that the treatment yield is improved, and the production cost is saved.
Owner:HUNAN YONGSHAN LITHIUM CO LTD

Equipment for extracting metal from spodumene impurity removal slag and recovery process thereof

The invention provides equipment for extracting metal from spodumene impurity removal slag and a recovery process of the equipment, and relates to the technical field of solid waste treatment. The discharging mechanism comprises a mounting frame mounted on the outer wall of the extraction box, a discharging motor is mounted on the side wall of the mounting frame through bolts, and a discharging lead screw is connected to an output shaft key groove of the discharging motor. According to the scheme, a concentrated solution can be uniformly dispersed into an alkali liquor system through the spray pipes capable of being adjusted at equal intervals, the discharge amount of each spray pipe is consistent, the uniform coverage range is ensured through the equal-interval design, the concentrated solution and the alkali liquor slowly and uniformly react, local supersaturation degree mutation is avoided, and orderly proceeding of impurity precipitation and lithium carbonate crystallization is ensured; and secondly, the mixing uniformity of a reaction system can be improved, the mass transfer efficiency can be enhanced, the top space of the extraction box can be covered by the design of equidistant distribution, and a concentrated solution can be quickly fused with an alkali solution in cooperation with a stirring mechanism.
Owner:FENGCHENG JIULING LITHIUM IND CO LTD

Mineralized filter element based on natural rock material as well as preparation method and application of mineralized filter element

The invention provides a mineralized filter element based on a natural rock material as well as a preparation method and application of the mineralized filter element. The mineralized filter element is prepared from a main material and an auxiliary material, wherein the main material adopts a modified natural rock material, and specifically comprises modified celestite, modified medical stone, modified spodumene, modified zeolite, modified dolomite, modified sphalerite, modified magnesite and modified quartz porphyry; the auxiliary materials comprise activated carbon and a binder. The preparation method sequentially comprises the steps of modifying, burdening, canning, compacting, baking and demolding. Wherein the modification comprises the following steps: sequentially carrying out acid pickling, water washing, calcining, cooling, crushing and screening on the natural rock material, so as to obtain the modified natural rock material. Natural rock materials are extracted from the nature to be modified and added into the mineralization filter element, various mineral elements needed by the human body can be released, remineralization of low-mineralization-degree water is achieved, and large-scale application and popularization are facilitated.
Owner:青岛海尔施特劳斯科技有限公司 +2

Method for extracting lithium sulfate from spodumene concentrate

The invention discloses a method for extracting lithium sulfate from spodumene concentrate, which comprises the following steps: mixing spodumene concentrate and auxiliary materials, and processing to obtain powder; the auxiliary materials comprise a first auxiliary material and a second auxiliary material, the first auxiliary material is lithium-containing tail mud, and the second auxiliary material is sulfate and / or carbonate; the powder is subjected to brick pressing forming, a powder green brick is obtained, and the powder green brick is dried and roasted at the temperature of 900-1050 DEG C; the roasted powder green bricks are crushed, and roasted particle materials are obtained; adding water into the roasted particle material, carrying out ball milling, and leaching to obtain a leaching solution and leaching residues; and carrying out purification and concentration treatment on the leachate to obtain the lithium sulfate. By implementing the method, base plate-free direct roasting can be realized, and the cost is reduced while the lithium recovery rate is improved.
Owner:FUJIAN YUANTONG TIMES NEW MATERIALS CO LTD

Hopper structure of bucket elevator for spodumene mineral powder

The utility model relates to a hopper structure of a bucket elevator for spodumene mineral powder, which comprises a hopper body with an opening in the front side face and a leakage prevention plate arranged on the inner bottom face of the hopper body and extending out of the opening, and the bottom face of the hopper body comprises a bottom plate detachably connected with a conveying belt and an inclined plate connected with the bottom plate and extending upwards and forwards in an inclined mode. And the anti-leakage plate is connected to the inclined plate. During use, the length of the bottom plate is increased due to the arrangement of the anti-leakage plate, and powder is supported by the anti-leakage plate during transportation, so that the falling of the powder is reduced, namely, the height of a static accumulation angle side line of the powder is increased, and the amount of leaked powder in the transportation process of the powder can be reduced; through the arrangement of the side wall plate, the side wall plate is matched with the left side plate and the right side plate, so that the powder is prevented from leaking from the two sides of the leakage-proof plate, and the leakage amount of the powder is further reduced; through the arrangement of the reinforcing plate and the auxiliary plate, the strength of the digging position of the bucket body is enhanced, and therefore the service life of the bucket body is prolonged.
Owner:SHANDONG RUIFU LITHIUM IND

Method for recycling and extracting lithium from spodumene filter residues

The invention provides a method for resource extraction of lithium from spodumene filter residues, and relates to the technical field of metal recovery. The invention discloses a method for recycling and extracting lithium from spodumene filter residues. The method for resource extraction of lithium from spodumene filter residues comprises the following steps: step S100, pretreatment of the filter residues; step S200, extracting lithium by multi-stage water washing; step S300, carrying out ion exchange and elution; step S400, concentrating the eluent; step S500, precipitating crude lithium carbonate; and step S600, purifying and drying. The method has the advantages that lithium resources are recycled by the aid of the spodumene impurity removal plate frame filter residues, metal materials are recycled from solid wastes, requirements on comprehensive recycling of the metal resources are met, resource recycling of the metal materials is realized, waste discharge is reduced, and the recycling rate of the metal resources is increased.
Owner:FENGCHENG JIULING LITHIUM IND CO LTD