405 results about "Lepidolite" patented technology

The invention provides an unfired lightweight aggregate with high lithium slag doping amount and a method for synergistically preparing the unfired lightweight aggregate from lepidolite slag and lepidolite slag. The unfired lightweight aggregate with high lithium slag doping amount is prepared from the following raw materials: lithium slag and a functional additive, the lithium slag material comprises lepidolite slag and spodumene slag; the functional additive comprises a binder, an exciting agent and a mineralizing agent. Through cooperation of the lepidolite slag and the spodumene slag, the dry basis doping amount of the lithium slag in the unfired lightweight aggregate is increased to 80% or above, the cement doping amount is reduced to 15% or below, introduction of active components such as fly ash is not needed, the cement doping amount is low, the curing time is short, and high-doping-amount resource utilization of the lithium slag is achieved; the unfired lightweight aggregate has relatively high cylinder compressive strength and relatively low water absorption rate and bulk density, and meanwhile, efficient solidification of beryllium element is effectively realized in combination with a mineralizing agent; the material has excellent comprehensive performance and can be widely applied to the fields of building industry and the like.

The invention provides a method for promoting low-temperature roasting of lepidolite hydrosulfate to extract lithium based on mechanical activation. The method comprises the following steps: S1, providing a mixture; the mixture comprises lepidolite and disulfate, and the mass percent of the disulfate and the lepidolite is 35-45%; s2, carrying out mechanical activation treatment on the mixture to obtain a precursor material; the mechanical activation treatment comprises the steps that the mixture is subjected to ball milling, the ball-to-material ratio adopted in the ball milling is (2-6): 1, the rotating speed of the ball milling is 500-800 rpm, and the ball milling time is 1.8-6 h; s3, roasting the precursor material to obtain a roasted clinker; the roasting temperature is 400 to 800 DEG C; and S4, the roasting clinker is sequentially subjected to water leaching and solid-liquid separation, and a lithium-containing leaching solution is obtained. According to the method, the lithium in the lepidolite can be efficiently leached under the conditions of low auxiliary material ratio, low roasting temperature and water leaching.

The invention discloses a waterproof and anti-fouling ceramic tile joint mixture and a preparation method thereof, and relates to the technical field of building materials. The waterproof and anti-fouling ceramic tile joint mixture is prepared from boron-containing silicon resin and cobalt-based MOF composite modified alkyd resin, super-hydrophobic carbon nano tube and silicon dioxide dispersion, cement, lepidolite lithium slag powder, nylon and silicone oil. The ceramic tile joint mixture is prepared by blending boron-containing silicon resin and cobalt-based MOF composite modified alkyd resin, a super-hydrophobic carbon nano tube and silicon dioxide dispersion, cement, lepidolite lithium slag powder, nylon and silicone oil, the surface of the ceramic tile joint mixture is of a rough structure and has hydrophobicity, and the internal extremely compact structure further reduces permeation of water and dirt. The waterproof and anti-fouling performance is remarkably enhanced, meanwhile, the excellent tensile bonding strength is achieved, the firmness and stability of the joint mixture are ensured, and the service life is effectively prolonged.

The invention relates to a method for efficiently extracting lithium by roasting lepidolite at low temperature by using composite organic acid. The invention relates to a method for efficiently extracting lithium by roasting lepidolite at low temperature by using composite organic acid, which comprises the following steps of: adding an activating agent into lepidolite concentrate, and pre-activating to obtain activated lepidolite concentrate powder; the lepidolite concentrate powder and a composite organic acid roasting agent are mixed, acidified and roasted, and a roasted product is obtained; adding water into the roasted product for leaching, and carrying out suction filtration to obtain a lithium-containing leachate; the composite organic acid roasting agent at least comprises methanesulfonic acid. According to the method, the problem that the lithium ion extraction efficiency is low due to the fact that the TOT layered structure in the lepidolite is difficult to damage is solved, and the problem that the lithium ion extraction efficiency is low due to the fact that Si-O bonds with high bond energy in an existing lepidolite crystal framework are difficult to dissociate is also solved.

The invention relates to an ion regulation inhibitor for preventing slurry from covering, application and a lepidolite ore beneficiation method. The invention discloses an ion regulation inhibitor for preventing slime from covering. The ion regulation inhibitor comprises a starch inhibitor, a sodium salt inhibitor and a metal ion regulator. The invention provides application of the ion regulation inhibitor capable of preventing the slime from covering in ore dressing of lepidolite ore. The invention provides a beneficiation method of lepidolite ore. The beneficiation method comprises the following steps: adding water into ore powder of the lepidolite ore to prepare ore pulp; a pH regulator, a collecting agent and the ion regulation inhibitor are added into the ore pulp for roughing, and roughing concentrate and roughing tailings are obtained; the ion regulation inhibitor is added into the roughing concentrate for concentration, and lepidolite concentrate is obtained; and a collecting agent is added into the roughing tailings for scavenging, and flotation tailings are obtained. The problems that an existing lepidolite ore beneficiation method is large in lithium ore loss, low in beneficiation efficiency and complex in process are solved.

The invention provides an alkali metal group ion selective permeable membrane, a preparation method and a lithium, rubidium and cesium extraction method and system, and the membrane is prepared by taking polyphenylene sulfide, Zr (HPO4) 2 and a high-molecular polymer adhesive as raw materials through mixing, fibration treatment and compression molding processes. Based on the weak dipole adsorption characteristic between the sulfur position of high-crystallization polyphenylene sulfide and alkali metal cations, efficient screening of monovalent alkali metal ions (Li < + >, Rb < + > and Cs < + >) and multivalent impurity ions (Mg < 2 + >, Al < 3 + > and Fe < 2 + >) is achieved, and the method can be used for extracting rubidium and cesium. The ion selective permeable membrane has excellent mechanical properties, high separation efficiency and corrosion resistance, and is low in production cost; and finally, the multiple targets of lepidolite leaching liquid impurity removal and lithium rubidium cesium synergistic extraction are achieved.

The invention relates to the technical field of metal smelting and impurity removal, in particular to a method for solidifying heavy metal beryllium and thallium in the lithium extraction process of lepidolite ore. In the process of mixing and leaching the clinker of the lepidolite ore obtained by roasting with the sulfate method and water, the slurry is treated by adding the curing agent, and beryllium and thallium metal elements are adsorbed and retained in the leaching residues in the form of precipitates; therefore, the problem of environmental pollution caused by secondary leaching of beryllium and thallium elements in the leaching residues due to factors such as rainwater in the subsequent landfill treatment process is solved, the beryllium and thallium elements in the lithium residues are solidified in the lithium extraction process to become common solid waste, and extra resource consumption caused by secondary processing solidification after the lithium residues are output is reduced. The cost is reduced and the efficiency is improved for enterprises. Meanwhile, the curing agent used in the method is simple in component and small in dosage, and the resource cost can be saved under the condition that the beryllium and thallium curing effect is guaranteed.

The invention provides a clay type lithium ore-lepidolite-spodumene continuous induction suspension cascade roasting lithium extraction method, which comprises the following steps: mixing clay type lithium ore and lepidolite concentrate for pelletizing, then mixing with spodumene concentrate to obtain a clay type lithium ore-lepidolite-spodumene mixed material, and carrying out continuous induction suspension cascade roasting on the clay type lithium ore-lepidolite-spodumene mixed material to obtain the clay type lithium ore-lepidolite-spodumene powder. And carrying out gradient high-temperature roasting, low-temperature acidizing roasting and water leaching to obtain a lithium leaching solution. The leaching rate of lithium in the lithium leachate obtained through the lithium extraction method is larger than or equal to 90%, the problem that existing spodumene roasting crystal transformation temperature is high can be effectively solved, meanwhile, the extraction and utilization rate of lepidolite and clay type lithium ore is increased, integrated extraction and utilization of lithium resources are achieved, and the method is simple in process, low in energy consumption, low in cost, easy to industrialize and suitable for industrial production. Good application prospects are realized.

The invention discloses a multi-element combined collecting agent and application of the multi-element combined collecting agent in low-grade lepidolite flotation, and belongs to the technical field of mineral processing. The multi-element combined collecting agent is composed of the cationic amine collecting agent, the anion accelerant and the long-chain anion collecting agent, the reaction activity of the collecting agent and the capturing behavior on mineral particles are remarkably improved in the flotation process, the foam viscosity is reduced, the fluidity is improved, and the flotation efficiency is improved. The method effectively solves the problems that foam is too stable and different silicate minerals are difficult to float and separate under the acidic condition, reduces environmental pollution and equipment corrosion, further strengthens the hydrophobic floating behavior on the surface of lepidolite, enables the grade of obtained concentrate Li2O to be high, and further realizes clean recycling of low-grade lepidolite resources.

The invention provides a method for extracting lithium, rubidium and cesium through strengthened roasting of lepidolite and preparing lithium, rubidium and cesium salt, and belongs to the technical field of lithium, rubidium and cesium extraction.The method comprises the steps that lepidolite, a carbon / sulfur additive and chlorine salt are subjected to ball milling, roasting and grinding, and roasted sand is obtained; through thermodynamic analysis on the lepidolite, after the carbon / sulfur additive is introduced, the Gibbs free energy of the reaction of the lepidolite and the additive is reduced, the reaction trend is improved, and in the roasting process, ions such as sodium, potassium and calcium in chlorine salt and the carbon / sulfur additive are replaced in a similar isomorphic manner, so that lithium, rubidium and cesium are leached more easily; in the process of intensifying roasting by introducing the carbon / sulfur additive, the use amount of the chlorine salt additive is reduced by 10-25%, potassium-sodium mixed salt and calcium oxalate are recycled, the recycling rate is greater than 50%, and the leaching residue amount is reduced by 30-40%; and the carbon / sulfur additive can directionally promote the reaction of the calcium salt additive and the lepidolite and convert the calcium salt additive into dicalcium silicate, so that the leaching residues obtained in the subsequent leaching process are easier to recycle.

The invention provides a composite flotation reagent for separating feldspar and quartz and a flotation method. The composite flotation reagent for separating the feldspar and the quartz comprises a first flotation agent, a second flotation agent and a third flotation agent, and the first flotation agent comprises, by mass, 20-25 parts of a collecting agent and 1-4 parts of a pH adjusting agent; and the second flotation agent comprises the following components in parts by mass: 6-8 parts of an inhibitor and 1-4 parts of mixed phosphate. According to the method, one-time flotation separation of quartz and feldspar is conducted on the lepidolite tailings through the flotation reagent, quartz fine sand with the SiO2 content higher than 99% can be obtained, the standard requirement of glass industry materials is met, and the effect is close to the flotation separation effect of hydrofluoric acid; therefore, the flotation process is simplified under the condition that the flotation effect is guaranteed, and compared with flotation separation conducted through a hydrofluoric acid method, the influence of flotation separation conducted through the composite flotation reagent for separating feldspar and quartz in the embodiment on the environment is greatly reduced.

The invention provides a thallium removal method for a thallium-containing solution in a process of extracting lithium from lepidolite, and the method comprises the following steps: pumping the thallium-containing solution into a first-stage reaction kettle, adding a first mixing agent, stirring for reaction, and filtering to obtain a first-stage thallium-removed solution and first-stage thallium-removed slag; and pumping the first-stage thallium removal liquid into a second-stage reaction kettle, adding a second mixing agent, stirring for reaction, standing, and filtering to obtain second-stage thallium removal liquid and second-stage thallium removal slag. According to the thallium removal method for the thallium-containing solution in the lithium extraction process of lepidolite, thallium removal is carried out on the thallium-containing solution in two steps, the first step is carried out through the first mixing agent, the second step is carried out through the second mixing agent, no organic flocculant is used, rapid sedimentation can be achieved, no harmful gas is generated, the sludge amount is small, the process is short, and lithium loss is low; and efficient thallium removal in the process of extracting lithium from lepidolite is realized.

The invention discloses a process for extracting lithium from lepidolite through low-temperature roasting, which comprises the following steps: uniformly mixing lepidolite mineral powder with ferrous sulfate, sodium sulfate and calcium oxide, roasting at 800-900 DEG C for 1-2 hours, and cooling to room temperature to obtain a roasted material; adding water into the roasted material to prepare slurry, performing wet grinding to obtain ball-milled slurry, performing water leaching on the slurry, and performing suction filtration to obtain lithium sulfate leaching liquid and leaching residues; treating the leaching solution to obtain a lithium precipitation pre-solution, and further carrying out lithium precipitation reaction to obtain a lithium carbonate crude product; and finally, mixing the crude lithium carbonate product with deionized water, heating, stirring, washing and carrying out solid-liquid separation to obtain a battery-grade lithium carbonate product. The lithium extraction process of the lepidolite can be realized under the roasting condition of 800-900 DEG C, and the roasting temperature is effectively reduced; meanwhile, on the basis of the low-temperature roasting condition, Li2SO4 and LiKSO4 can still be extracted to the maximum extent, and release of SO2, SO3 and HF is avoided.

The invention discloses a method for extracting lithium by coupling roasting of lepidolite and spodumene, and belongs to the technical field of metal smelting, the method comprises the following steps: calcining a mixture to obtain a roasted material, and then leaching the roasted material to obtain a lithium-containing solution and slag; the mixture comprises mixed stone and a roasting aid, and the mixed stone comprises lepidolite and spodumene. According to the method, the lepidolite and the spodumene are subjected to coupled calcination, and the reaction activity of the lithium element is improved through fluorine in the lepidolite, so that the roasting temperature and the doping amount of a roasting auxiliary agent required by phase transformation of the lepidolite and the spodumene are reduced, and the energy consumption and the generation of slag in the lithium extraction process are further reduced.

The invention provides a high-selectivity flotation method for micro-fine particle lepidolite containing rubidium and cesium, which comprises the following steps: levigating raw lepidolite ore, and desliming to obtain a flotation material and slime; adding sodium hexametaphosphate and a collecting agent HT8-01 into the flotation material, stirring, and roughing to obtain lepidolite rough concentrate and flotation tailings I; a collecting agent HT8-01 is added into the flotation tailings I for two times of scavenging, flotation tailings and two scavenging middlings are obtained, and the scavenging middlings are sequentially returned to the upper layer for operation; sodium hexametaphosphate is added into the lepidolite rough concentrate for two times of concentration, lepidolite concentrate and two concentrated middlings are obtained, and the concentrated middlings are sequentially returned to the upper layer for operation; the collecting agent HT8-01 is obtained by mixing octadecylamine and sodium dioctyl sulfosuccinate according to the mass ratio of 5: 3. According to the method, the separation effect of the rubidium-cesium-lithium-containing mica and gangue minerals such as quartz and feldspar is improved, the problems that foam is too stable, the viscosity is too high and the size is too large are solved, and high-selectivity separation of the micro-fine-particle rubidium-cesium-lithium-containing mica is achieved.

A mineral separation method for separating and enriching tantalum, niobium and zinnwaldite from feldspar tailings, comprising the following steps: Step 1: Predispersion; Step 2: Vibration classification; Step 3: Strong dispersion; Step 4: Magnetic rough separation; Step 5: Magnetic cleaning; Step 6: Strong dispersion; Step 7: Flotation rough separation; Step 8: Flotation cleaning; Step 9: First pressure filtration; Step 10: Magnetic scavenging; Step 11: Second pressure filtration; Step 12: Flotation scavenging. Compared with the prior art, the advantages of the present invention are as follows: (1) Using a high-speed shearing machine for dispersion can greatly improve the dispersion effect and is beneficial to the subsequent separation of various minerals; Using a high-intensity slurry magnetic separator can effectively remove slime, which is beneficial to the further flotation separation of tantalum and niobium minerals from zinnwaldite and improve the recovery rate; Using a flotation column for the separation of tantalum and niobium ore and zinnwaldite has a large processing capacity, a high recovery rate and environmental neutrality, which is beneficial to environmental protection.

The invention belongs to the technical field of lithium-containing mineral treatment, and relates to a method for selectively extracting lithium from lepidolite. The method mainly comprises the following steps: carrying out roasting defluorination treatment on lepidolite, and grinding to obtain a lepidolite defluorination roasting material in which the mass content of lithium is 0.8-1.5% and the mass content of aluminum is 20-30%; carrying out acid leaching treatment on the lepidolite defluorination roasting material by using a first acid solution, and carrying out solid-liquid separation to obtain a leaching solution and leaching residues; adjusting the pH value of the leachate to 2-3 by adopting a neutralizer, and then adding a mixture of the neutralizer and benzoic acid into the leachate to obtain aluminum benzoate precipitate and aluminum-removed liquid; adding the aluminum benzoate precipitate into a second acid solution, dissolving, and carrying out solid-liquid separation to obtain regenerated benzoic acid and an aluminum-rich solution; and cooling the aluminum-rich solution to obtain an aluminum salt and a recyclable acid solution. According to the method, efficient separation of lithium and aluminum in lepidolite can be achieved, benzoic acid and the acid solution can be recycled, and the lithium extraction cost can be effectively reduced.

The invention provides a lepidolite flotation collecting agent and a preparation method and application thereof, and relates to the technical field of mineral flotation. The preparation method of the lepidolite flotation collecting agent comprises the following steps that S1, methyl alcohol and concentrated sulfuric acid are evenly mixed to obtain a solution A; s2, adding modified salicylhydroxamic acid into the solution A, and uniformly mixing to obtain a solution B; s3, adding water, sulfonated oleic acid and fatty alcohol-polyoxyethylene ether into the solution B, uniformly mixing to obtain a solution C, and heating and stirring the solution C to obtain the lepidolite flotation collecting agent. According to the lepidolite flotation collector, effective flotation of lepidolite is achieved, and the recovery rate of lepidolite is increased.

The utility model discloses lepidolite smelting slag recovery treatment equipment, and relates to the technical field of slag treatment. Comprising a tank and a grinding structure, a grinding structure is mounted in the middle of the tank body, and an air blowing structure is mounted in the tank body; the blowing structure comprises a plurality of spray heads, a plurality of rotating shafts are rotatably mounted on the inner wall of the tank body, spray heads pointing to the surface of the tank body are obliquely mounted on the rotating shafts, and driven gears are mounted on the rotating shafts; an annular rail groove is formed in the tank body, a driving ring is rotationally installed in the rail groove, annular gear rings are installed on the two faces of the driving ring respectively, and the driven gear is meshed with the gear rings. According to the device, ground powder can be effectively prevented from being attached to the inner wall of the tank body, discharging is more thorough, powder residues are avoided, and the treatment process of lepidolite smelting slag is improved.

The invention relates to the technical field of pollution-free treatment of industrial waste residues, in particular to a treatment method of thallium-containing tailings obtained by extracting lithium from lepidolite. The method comprises the following steps: mixing the lepidolite lithium extraction thallium-containing tailings with an acid solution, sequentially carrying out three times of stirring reaction, mixing with nano-iron, adjusting the pH value to 10.0, and carrying out adsorption and solid-liquid separation to realize treatment of the lepidolite lithium extraction thallium-containing tailings. According to the method, efficient removal of thallium in the tailings (the leaching toxicity is smaller than 0.1 mg / L, and the removal rate is larger than 99%) is achieved through the acid rinsing-nano iron adsorption coupling technology, meanwhile, a wastewater closed-loop circulation system is constructed, and the treatment cost of each ton of slag is reduced to 300 yuan or below.

The invention belongs to the field of mineral recovery, and particularly relates to a method for recovering lithium, rubidium and cesium elements in lepidolite, which comprises the following steps: placing a mixed solution dispersed with lepidolite, an inhibitor and an alkali liquor in a closed container, carrying out pressurized alkaline leaching at the temperature of more than 200 DEG C, and then carrying out solid-liquid separation to obtain a leachate; extracting the lithium-rubidium-cesium-rich solution by adopting the organic phase A to obtain lithium extraction raffinate and a lithium-loaded organic phase; the organic phase A comprises a component a # imgabs 0 #, a component b # imgabs 1 # and a hydrophobic diluent; extracting the lithium extraction raffinate by adopting the organic phase B to obtain rubidium and cesium extraction raffinate and a rubidium and cesium loaded organic phase; the organic phase B comprises a component c and a hydrophobic diluent; the component C # imgabs2 # is a compound with a structure as shown in a formula 3. The invention provides a method for recovering valuable elements in lepidolite without roasting, which can effectively and directly recover the valuable elements in the lepidolite and can realize extraction separation selectivity of lithium, rubidium and cesium.

The invention discloses a jade-color luxury-effect ceramic rock plate and a preparation method thereof. The ceramic rock plate sequentially comprises a green body, a transparent cover glaze layer, a jade texture pattern layer, a composite dry particle layer, a first protective glaze layer, a transparent dry particle layer and a second protective glaze layer from bottom to top, the composite dry particle layer is prepared from the following raw material components in parts by weight: 65-69 parts of baddeleyite, 5-7 parts of lepidolite, 10-15 parts of opal, 3-5 parts of kyanite and 1-5 parts of udravite; the anti-reflection dry granules are prepared from the following raw material components in parts by weight: 20 to 25 parts of albite, 25 to 30 parts of quartz, 14 to 16 parts of calcite, 8 to 12 parts of wollastonite and 13.5 to 15.5 parts of zinc oxide. The ceramic rock plate can truly restore the randomness, the layering sense and the multicolor interweaving effect of jade seeping, the mild texture and the natural gloss of the surface of a product are improved, and the luxury effect of jade seeping is achieved.

The application discloses a kind of multi-element combination collector and its application in low-grade lepidolite flotation, belong to mineral processing technical field.The multi-element combination collector provided by the application is composed of cationic amine collector, anionic promoter and long-chain anionic collector, which significantly improves the reaction activity of the collector and the capture behavior of the mineral particles during the flotation process, reduces the foam viscosity and increases the fluidity, effectively solves the problem of overstable foam and the difficulty of flotation separation of different silicate minerals under acidic conditions, reduces environmental pollution and equipment corrosion, and also strengthens the hydrophobic floating behavior of lepidolite surface, resulting in high grade Li2O concentrate, further realizing the clean recycling of low-grade lepidolite resources.

The utility model relates to the technical field of lepidolite sorting, and particularly discloses a lepidolite sorting device which comprises a guide groove body and a plurality of sorting boxes arranged on one side of the guide groove body. A grading cavity is formed in the grading box, a rotating rod extending into the grading cavity is installed at the top of the grading box, a foaming stirring frame is installed on the rotating rod, the top end of the rotating rod extends to the top of the grading box to be connected with a driven bevel gear, the top of the grading box is connected with a fixing frame, and a driving rod is rotationally connected to the fixing frame. The driving mechanism works to drive the driving rod and the center rod to rotate synchronously, the driving bevel gear drives the driven bevel gear and the rotating rods to rotate synchronously, the grading cavity is inflated, the bubbling stirring frame stirs materials in the grading cavity, and lepidolite minerals are attached to bubbles and float to the surface of ore pulp along with the bubbles. The center rod drives the stirring frame to rotate, so that foam is stirred into the guide groove body, stirring and stirring are continuous, and the arrangement of a plurality of drives is reduced.

The invention provides equipment and a method for preparing a lepidolite slag planting matrix for agricultural cultivation, and relates to the technical field of agricultural cultivation, the equipment comprises an elution pool, an elution mechanism and a bubble wave-blowing mechanism; a rotating shaft is rotationally connected to the inner side of the elution pool, two key blocks are connected to a surface key groove of the rotating shaft, an elution cylinder is connected to surfaces of the two key blocks through key grooves, six punching baffles are arranged on the inner wall of the elution cylinder in an annular array mode, and a mounting base is fixedly arranged on the front face of the elution pool. According to the scheme, rotation of a rotating shaft can drive a rotating disc and a driving block to rotate, then an annular frame drives two pistons to move left and right, gas in a compression cylinder is compressed into an elution pool, dense small bubbles appear in elution water, and through turbulent flow and shearing force generated by bubble breakage, the gas in the elution water is purified. Salt crusting on the surface of the slag is secondarily damaged, so that the elution time of the lepidolite slag is shortened, and the preparation efficiency of the planting substrate is improved.

The invention discloses a combined collecting agent for direct flotation of lepidolite and application of the combined collecting agent. The combined collecting agent is formed by compounding hexadecylsulfonic acid sodium salt and lauryl amine according to the molar ratio of 1: 3-3: 1. And lepidolite ore samples to be separated and water are mixed and stirred to be uniform, flotation ore pulp is obtained, after the pH value of the ore pulp is adjusted to the required pH value, the combined collecting agent is added, direct flotation desilicication is conducted, and a lepidolite concentrate product is obtained. The combined collecting agent shows good selectivity and excellent separation performance when being applied to the field of direct flotation desilicication of lepidolite, and has the advantages that the agents are easy to obtain, the preparation process is simple, and the dosage of the agents is small.

The invention discloses a method for strengthening flotation recovery of micro-fine particle rubidium and cesium co-associated lepidolite. The method mainly comprises the following steps: blending the micro-fine particle rubidium and cesium co-associated lepidolite into ore pulp by using micro-nano bubble deionized water; sequentially adding a regulating agent and an anion-cation combined collecting agent, fully stirring, and regulating the pH value of the ore pulp; and a flotation machine is used for sorting the evenly-stirred ore pulp, and rubidium and cesium co-associated lepidolite concentrate is obtained. According to the flotation result, on the premise that the using amount of the collecting agent is the same, the recovery rate of the cavitation micro-nano bubble flotation is increased compared with that of conventional bubble flotation, and the flotation recovery rate of the micro-fine particle rubidium-cesium co-associated lepidolite which is an important metal mineral resource can be remarkably increased through the method; and efficient recovery of the rubidium-cesium carrier minerals is effectively realized.

The invention relates to a whole-fraction flotation method for lepidolite ore containing mud, and belongs to the technical field of mineral processing. Aiming at the problems of serious lithium loss in a mud lepidolite ore desliming flotation process, poor indexes of a non-desliming flotation process and the like, a compound regulator, a compound inhibitor and a compound collector are added to carry out multi-dimensional regulation and control on the whole process of ore grinding, size mixing and collecting, so that the whole-size-fraction flotation recovery of the mud lepidolite ore is realized. The compound regulator is used for optimizing the composition of the ore grinding size fraction and reducing further argillization of the ore; the compound inhibitor is used for being selectively adsorbed to the surface of gangue minerals, and the hydrophobization effect of the collecting agent on the surface of the gangue minerals is hindered. The compound collecting agent is used for improving the separation difference between lepidolite and gangue minerals, and efficient enrichment of lepidolite is achieved. According to the method, a conventional flotation process does not need to be changed, the worsening influence of slime on the flotation process can be solved only through the synergistic effect of flotation reagents, and the flotation index of lepidolite ore is remarkably improved under the condition that slime is not removed.

The invention provides a method for removing beryllium in lithium carbonate smelting slag, and relates to the technical field of preparation of lithium carbonate from lepidolite. The invention discloses a method for removing beryllium in lithium carbonate smelting slag. The method comprises the following steps: S1, adding a solvent into the lithium carbonate smelting slag for washing, and filtering to obtain primary leachate and smelting slag subjected to primary impurity removal; s2, a solvent is added into the smelting slag subjected to primary impurity removal, a complex is added, a pH regulator is added to adjust the pH, stirring and filtering are conducted, and secondary leachate and smelting slag subjected to secondary impurity removal are obtained; s3, a solvent is added into the smelting slag subjected to secondary impurity removal, stirring and filtering are conducted, and third-time leaching liquid and smelting slag subjected to third-time impurity removal are obtained; and S4, phosphate and an adsorbent are added into the smelting slag obtained after third-time impurity removal, the mixture is mixed to be uniform, and purified smelting slag is obtained. The level of toxic elements leached from the treated smelting slag meets the standard of common solid waste.

The utility model discloses a lepidolite raw material roasting system and a lithium carbonate production system, and solves the technical problem of high defluorination flue gas treatment cost in the prior art. The lepidolite raw material roasting system comprises a condensation assembly used for carrying out condensation treatment on defluorinated flue gas generated by a roasting kiln and outputting a gas-liquid-solid mixture; the condensation assembly comprises a condensation pipe and a cooling jacket which are connected with a flue gas outlet of the roasting kiln; the buffer assembly is used for temporarily storing the gas-liquid-solid mixture; the buffer assembly comprises a buffer tank connected with the condensation pipe; the absorption assembly is used for absorbing non-condensates in the buffer tank; the absorption assembly comprises an absorption device connected with the non-condensates of the buffer tank; the backflow assembly is used for enabling the tail gas to flow back into the buffer tank when hydrogen fluoride in the tail gas discharged by the absorption assembly exceeds a preset value; the backflow assembly comprises a hydrogen fluoride detection device arranged at a tail gas outlet of the absorption device and a backflow pipe connected with the buffer tank and a downstream pipeline of the hydrogen fluoride detection device.