67 results about "Pegmatite" patented technology

The embodiment of the invention provides a pegmatite type lithium ore prediction method and device based on deep learning, and the method comprises the steps: obtaining a plurality of different types of data of a to-be-collected region, converting the space coordinates of various types of data into a same space coordinate system, and generating a geoscience space database; rasterizing various types of data in the geoscience spatial database to generate a prediction element graph, a mask graph and a prediction label graph; generating a training data set and a verification data set based on the prediction element graph, the mask graph and the prediction label graph of the target area; adopting the training data set and the verification data set to train a preset full convolutional neural network to generate a prediction model; and based on the prediction model, finding out the distribution condition of the pegmatite type lithium ores in the selected to-be-collected area. By adopting the technical scheme, a batch of lithium-containing pegmatite veins with a certain form, scale and spatial distribution can be quickly and effectively identified.

The invention provides an inversion method and device for granite pegmatite granularity and computing equipment, and relates to the technical field of mineral detection. According to the method, multi-angle reflectivity spectral data of a plurality of particle samples are obtained, the particle samples are ore bodies which comprise one or more kinds of end member minerals and have different particle sizes, and the multi-angle reflectivity spectral data comprise reflectivity corresponding to each observation condition parameter in a plurality of observation condition parameters. Determining target observation condition parameters according to the multi-angle reflectivity spectral data; based on a Hapke model, determining a linear regression equation of the particle size of the granite pegmatite according to the target observation condition parameters; and determining the particle size distribution of the granite pegmatite in the granite pegmatite image according to a linear regression equation. According to the method provided by the invention, qualitative analysis and quantitative inversion of remote sensing of the granite pegmatite can be realized, the problems that the delineation precision of an image target region is low and similar spectrums are difficult to distinguish are solved, rapid detection of the granite pegmatite is realized, and the prospecting efficiency is improved.

The invention belongs to the technical field of rock image classification of earth science, and discloses a lithium ore related lithology identification method and system based on a lightweight deep learning model. Acquiring lithology data related to pegmatite type lithium ore, and constructing a deep learning data set; coupling a Fmix data enhancement method based on image mixing in the MobileViT model, introducing transfer learning, and constructing a TL-Fmix-MobileViT lithology identification model; performing lithium ore related lithology identification based on a TL-Fmix-MobileViT lithology identification model; and identification result analysis and TL-Fmix-MobileViT lithology identification model performance evaluation are completed. According to the method, information can be captured in a boundary region, features from different images can be fused, the mixed rock features can be better classified, the classification performance is good, the precision reaches 99% or above, and the reasoning speed is high.

The invention provides a method for preparing 4N8-grade high-purity quartz sand through pegmatite high-pressure roller milling flotation, and belongs to the technical field of quartz purification processes. Crushing the quartz raw ore subjected to color sorting into quartz sand with qualified particle size, and carrying out screening and dry magnetic separation; mixing the quartz sand with qualified particle size after magnetic separation with water to form ore pulp, and then carrying out flotation; adding a first collecting agent into the ore pulp in the first flotation to remove mica; in the second flotation, a second collecting agent is added into the first flotation tailings, and feldspar is removed; and in the third flotation, a third collecting agent is added into the second flotation tailings, metal impurities are removed, and a final high-purity quartz sand product is obtained. Visible impurities are rapidly removed through the color sorter, ore is efficiently crushed into fine sand through the high-pressure roller mill, and the remarkable monomer dissociation effect is achieved; a novel flotation impurity removal system is developed, and the method is suitable for large-scale production and purification of high-purity quartz sand.

The invention provides a pegmatite type lithium ore prospecting method based on aviation hyperspectral remote sensing. The method comprises the following steps: step 1, inputting hyperspectral reflectivity data; step 2, calculating continuum removal data of a characteristic spectrum section; step 3, calculating a characteristic absorption wavelength position DL of the characteristic spectrum section; step 4, calculating the matching degree of the characteristic spectrum sections; 5, recognizing mineral end members; 6, inputting pegmatite vein distribution information; 7, delineating an abnormal pegmatite vein; and 8, delineating the lithium-containing pegmatite vein. The invention provides a muscovite and spodumene end member identification and lithium-containing pegmatite vein identification method, the fine identification of seven subclasses of muscovite can be realized, the identification of the subclasses in the existing aviation hyperspectral data is the most and finest, and meanwhile, the muscovite and spodumene information can be finely distinguished. Based on spodumene and muscovite information, the lithium-containing pegmatite vein can be rapidly screened from a large number of pegmatite veins, and therefore the prospecting efficiency of pegmatite type lithium ore is improved.

The invention provides a screening method of granite pegmatite ore resources for high-purity quartz sand and application of the screening method, and relates to the technical field of preparation of 4N8-grade high-purity quartz sand. Systematic analysis is conducted on the granite pegmatite ore resources according to a purified product test result and microscopic morphology observation, whether the ore resources have the potential of purifying the high-purity quartz sand or not is judged, and whether the ore resources have the potential of purifying the high-purity quartz sand or not is judged. Whether the granite pegmatite ore source can be used as a potential raw material for preparing 4N8-grade high-purity quartz sand or not can be effectively screened out. According to the method, purification and observation are carried out synchronously and supplement each other, and the quartz ore and the embedded minerals and fluid inclusion in the quartz sand are observed and identified, so that the technical effects of efficiently evaluating the feasibility of preparing the 4N8-grade high-purity quartz sand from the granite pegmatite ore source on the whole and reducing time and other cost investments are achieved.

The invention discloses a fluoride-free strong-acid-free reverse flotation method for extracting a high-purity quartz sand flotation product from granite pegmatite, and belongs to the technical field of mineral flotation. The method comprises the following steps: carrying out graded crushing and ore grinding on granite pegmatite to obtain slurry to be treated; carrying out wet magnetic separation on the to-be-treated slurry to obtain ore pulp after magnetic separation and magnetic-containing minerals; the pH value of the ore pulp is not adjusted, reverse flotation is carried out in the presence of a quartz mixed inhibitor, and a feldspar product and a quartz product are obtained; the quartz mixed inhibitor is a combination of a component A and a component B, wherein the component A is selected from at least one of sodium metasilicate, sodium tripolyphosphate, sodium hexametaphosphate, carboxymethyl cellulose and salinized water glass; the component B is selected from at least one of guar gum, Arabic gum, sodium humate and citric acid. The method is free of fluorine and strong acid, green and efficient, and is a method for preparing high-purity quartz sand from pegmatite with high industrial application feasibility.

The invention belongs to the field of preparation of high-purity quartz, and relates to a method for directionally removing impurity elements of pegmatite type high-purity quartz, which comprises the following steps: (1) crushing raw materials by a crusher, washing ore, grinding and grading, reselecting and floating to obtain quartz concentrate; (2) adding the quartz sand into the leachate A for constant-temperature micro-pressure leaching, and washing to obtain primary quartz sand; the leachate A is mixed acid of HF, HCl and HNO3, the concentration ratio of the HCl to the HNO3 is (3-12): 1, the concentration ratio of the HCl + HNO3 to the HF is smaller than or equal to 3, and the sum of the concentrations of the HCl, the HCl and the HNO3 is larger than or equal to 3 mol / L; (3) roasting and water quenching to obtain intermediate quartz sand; (4) adding the quartz sand into the leachate B for ultrasonic leaching, washing, and carrying out high-temperature heat treatment to obtain high-purity quartz sand; the leachate B is a mixed acid of HF and HCl, HF is 0.5-2 mol / L, and the concentration ratio of HCl to HF is less than or equal to 3. According to the method, the 4N8-grade high-purity quartz sand can be obtained, the yield is high, the process is simple, and operation is easy.

The present invention discloses a method and apparatus for purifying high-purity quartz sand from granite pegmatite. The process of the present invention can deeply remove impurities from quartz sand concentrate made from granite pegmatite, effectively removing both fluid inclusion impurities and lattice impurities, which are difficult to remove in quartz. The process is particularly effective in removing interstitial ions such as alkali metals, and also has a certain degree of removal effect on stubborn impurity elements such as aluminum and titanium. This method can enable the purity of high-purity quartz sand to break through the bottleneck of 5N. The present invention has the advantages of simple operation, a short process, and good impurity removal effect.

The invention discloses a method for extracting lithium carbonate from spodumene in pegmatite. The method comprises the following steps: (1) crushing spodumene, and carrying out crystal form conversion roasting; (2) mixing the ore sample subjected to crystal form conversion with concentrated sulfuric acid, and heating for acidification roasting; (3) adding water into the treated ore sample for leaching to obtain a leaching solution, neutralizing the leaching solution with calcium carbonate until the pH value is 5.5-6.5, and filtering to obtain a lithium sulfate solution; (4) adjusting the salt content of the lithium sulfate solution to be 10-35g / L and the aluminum-lithium ratio to be 5-35; carrying out membrane separation on the lithium sulfate solution by using a nanofiltration membrane under the conditions that the temperature is 20-35 DEG C and the pressure is 1.5-4 MPa; and (5) adding lithium carbonate into the solution separated by the nanofiltration membrane to react, and filtering and separating to obtain the lithium carbonate. According to the method disclosed by the invention, the impurities in the leachate are removed by adopting a nanofiltration membrane method, and effective separation between impurity ions and lithium ions in the leachate is realized by controlling process parameters in an impurity separation process, so that the purity of a lithium carbonate product is remarkably improved, and a battery-grade lithium carbonate product is obtained.

The invention discloses a wet digestion method for indissolvable granite pegmatite. The wet digestion method comprises the following steps: S1, weighing a granite pegmatite solid sample and putting the granite pegmatite solid sample into a digestion tank; s2, a digestion solution A composed of nitric acid and hydrofluoric acid is added, the sample is fully wetted by the digestion solution A, and the digestion tank is sealed for pre-digestion; and S3, cooling after the pre-digestion is finished, and then adding a digestion solution B composed of perchloric acid, nitric acid and hydrofluoric acid for heating digestion. The wet digestion method disclosed by the invention overcomes the defects of a common sample dissolving method, so that the indissolvable granite pegmatite can be dissolved more thoroughly, and the accuracy of detecting the content of the metal impurities in the granite pegmatite is improved.

The invention discloses a pegmatite high-purity quartz purification method and an extraction purity evaluation method.The purification method comprises the steps that S1, a quartz sample C is selected from pegmatite high-purity quartz samples collected in the field through naked eye observation, slice observation under a microscope and total rock analysis in sequence; s2, performing laser confocal Raman spectrum measurement on the quartz sample C to obtain typical characteristic peak data and lattice Al data of a fluid inclusion in the quartz sample C, and rejecting quartz samples which do not meet requirements based on the lattice Al data to obtain a quartz sample D; s3, performing fluid inclusion temperature measurement on the screened quartz samples D, and selecting quartz samples E with the uniform temperature less than 600 DEG C from the quartz samples D; and bursting the quartz sample E to obtain a final purified product. The invention further provides a pegmatite high-purity quartz extraction purity evaluation method. According to the invention, purification of pegmatite high-purity quartz is realized, and grading evaluation of the purified quartz is realized.

The utility model relates to the technical field of beneficiation of petalite-containing pegmatite spodumene ore, in particular to a petalite-containing pegmatite spodumene ore separation system, which comprises a classifying screen, a dense medium pressure three-product separation system and a flotation system, an undersize outlet of the classifying screen is a fine fraction outlet, a qualified fraction outlet is connected with an inlet of the dense medium pressure three-product sorting system, and an outlet of the dense medium pressure three-product sorting system is divided into a petalite concentrate outlet, a petalite tailing outlet and a reselected spodumene outlet; and the outlet of the reselected spodumene and the outlet of the fine fraction are respectively connected with the inlet of the flotation system, the outlet of the flotation system is a flotation concentrate outlet and a flotation tailing outlet, and the system has the advantages of high comprehensive utilization rate of ores, high economic benefit, fast fund backflow, small grinding flotation amount of spodumene ores, energy conservation, environmental protection and the like.

The invention particularly discloses a granite pegmatite purification method. The method comprises the steps of pretreatment, primary flotation, drying purification, water quenching, acidification, secondary flotation and drying. According to the method, the quartz sand is subjected to primary flotation before drying and purification, so that most associated minerals in the quartz sand can be removed, and the material cost in the subsequent purification and acidification process is saved; meanwhile, the drying purification process and the low-temperature water quenching process are combined together, the quartz sand dried at the front end is directly purified, lattice impurities in the preheated quartz sand in the drying process can react with a purifying agent more efficiently, and the purified quartz sand can directly flow into a skip car filled with liquid nitrogen at the high temperature; on one hand, larger temperature difference can be achieved, and on the other hand, the materials can be prevented from being polluted in the transferring process. Therefore, the granite pegmatite purification method provided by the invention can effectively remove lattice impurities in the quartz sand, and has the characteristics of simple process and high purification efficiency.

The invention provides a collecting agent composition for flotation of rutile, a process for preparing high-purity quartz sand from titanium-containing pegmatite and the high-purity quartz sand, and particularly relates to the technical field of quartz sand preparation. The collecting agent composition for flotation of rutile is composed of a main collecting agent, an auxiliary collecting agent and a surfactant according to the mass ratio of (1-3): (1-3): 2. The main collecting agent is a phosphoric acid collecting agent, and the auxiliary collecting agent is fatty alcohol. The phosphoric acid collecting agent serves as a main collecting agent, the fatty alcohol serves as an auxiliary collecting agent, and meanwhile the flotation efficiency is improved through the surface active agent. The composition shows excellent selectivity and collection effect on rutile. By introducing the auxiliary collecting agent, the use amount of the phosphoric acid collecting agent is effectively reduced, and therefore the production cost of the whole flotation process is remarkably reduced. According to the collecting agent composition, the flotation efficiency of rutile is improved, the use cost is reduced, and the development of downstream industries is promoted.

This invention discloses a method for exploring rare metal deposits in pegmatites in high-altitude and cold regions, comprising: acquiring data on high-altitude and cold regions; using the acquired data to explore the ore-bearing strata, ore-controlling structures, distribution patterns of pegmatite veins, and the distribution range of ore-bearing and ore-free pegmatites within the mining area; based on the exploration results, comprehensively delineating surface ore-bearing geological bodies using remote sensing geological interpretation, geological mapping, and geochemical methods, and determining the spatial distribution morphology of ore-bearing geological bodies at depth using geophysical measurement methods; conducting deep verification using drilling methods; establishing a prospecting model based on the acquired data and exploration results; and combining the prospecting model to extract indicator information of favorable mineralization areas in the region and delineating prospecting target areas. This invention, by combining remote sensing geological interpretation, geological mapping, geochemical methods, and geophysical measurement methods, can accurately obtain the location information of rare metal deposits in pegmatites.

The invention provides a screening method of a pegmatite type quartz potential raw material and a preparation method of 4N8-grade high-purity quartz sand, and belongs to the technical field of mineral screening. The screening method of the pegmatite type quartz potential raw material comprises the following steps: a first screening basis and a second screening basis: detecting characteristics of a quartz inclusion in a pegmatite geological inclusion; 3, screening basis: detecting the content of titanium element in pegmatite; when samples to be screened meet the first screening basis and / or the second screening basis and are judged as preliminary potential samples, the preliminary potential samples are judged according to the third screening basis, and the samples meeting the third screening basis are pegmatite type quartz potential raw materials. According to the method, the potential samples can be quickly distinguished through the pegmatite geological inclusion, and the non-potential samples can be directly removed, so that high-quality ore sources can be quickly found.

The invention discloses an intelligent recognition green separation method and system for pegmatite type lithium ores, and relates to the technical field of mineral recognition and separation. Training an intelligent identification and sorting decision model; ore pretreatment and intelligent roughing waste throwing; stage ore grinding and intelligent real-time separation; by means of the method, the high recovery rate of lithium minerals and high-grade concentrate output can be achieved.

The invention relates to the technical field of mineral processing, and provides a synergistic enrichment method for associated niobium, tantalum, tin and rare earth in pegmatite type spodumene ore, which comprises the following steps: crushing pegmatite type spodumene raw ore associated with niobium, tantalum, tin and rare earth to obtain crushed minerals; the crushed minerals are ground, and ground ore pulp is obtained; pulp mixing is conducted on the ore grinding pulp, and to-be-separated ore pulp is obtained; the to-be-separated ore pulp is subjected to gravity separation, and gravity concentrate and final tailings are obtained; the gravity concentrate is subjected to strong magnetic separation, and niobium tantalum-tin-rare earth concentrate and magnetic separation tailings are obtained; the niobium-tantalum-tin-rare earth concentrate is subjected to electric separation, and iron-tin-containing concentrate and electric separation tailings are obtained; and the electric separation tailings are subjected to flotation separation, and rare earth concentrate and niobium-tantalum concentrate are obtained. According to the collaborative enrichment method, efficient recovery of niobium and tantalum can be achieved, efficient enrichment of tin and rare earth can be achieved, and therefore the utilization rate of niobium, tantalum, tin and rare earth in ore can be greatly increased.

The application discloses a sulfuric acid-free and hydrofluoric acid-free reverse flotation method for preparing high-purity quartz sand from pegmatite, and belongs to the technical field of mineral flotation. The application removes iron impurities from the crushed and ground pegmatite by magnetic separation to obtain non-magnetic mixed ore; then, a combined collector 1 composed of anion and cation collectors is added into the non-magnetic mixed ore, mica flotation is carried out without adjusting the pH of the ore slurry, and mica foam products and mixed mineral slurry containing feldspar and quartz are obtained; then, mixed depressants and a combined collector 2 are added into the mixed mineral slurry containing feldspar and quartz to carry out quartz reverse flotation, and feldspar foam products and quartz products with a purity of more than 2N are obtained; finally, the feldspar foam products can be further subjected to fine selection to obtain final feldspar products. The process flow is simple, the conditions are mild, and the process is sulfuric acid-free and hydrofluoric acid-free, so that the corrosion degree of the equipment is low, the environmental pollution is small, and the process is suitable for industrial application.

The invention relates to a pegmatite type lithium ore prediction method and system based on Li / La element ratio abnormity, belongs to the technical field of mineral quantitative prediction, and solves the problem that in current pegmatite type lithium ore prediction, key mineralization indexes are not determined, so that mineralization information extraction and prediction are not accurate enough. The method comprises the following steps: obtaining and constructing a hierarchical lithium ore knowledge graph based on mining area literature data, and performing knowledge reasoning retrieval based on the hierarchical lithium ore knowledge graph to determine key features for controlling mineralization; extracting the key features according to geochemical data of a predicted mining area, and determining a ratio of the key features; and carrying out anomaly judgment on the ratio so as to carry out mineralization prediction on the pegmatite type lithium ore. And through knowledge reasoning retrieval of the hierarchical lithium ore knowledge graph, key metallogenic indexes are found to carry out metallogenic prediction on pegmatite type lithium ore, so that metallogenic information can be extracted more accurately and a mining area can be predicted more accurately.

The application discloses a kind of wet digestion methods of difficultly soluble granite pegmatite, comprising the following steps: S1: taking granite pegmatite solid sample is placed in digestion tank;S2: adding nitric acid and hydrofluoric acid digestion liquid A consisting of, make digestion liquid A fully wet sample, seal digestion tank and carry out pre-digestion;S3: after pre-digestion is finished, cooling, then adding digestion liquid B consisting of perchloric acid, nitric acid and hydrofluoric acid is heated and digested.The wet digestion method of the application overcomes the deficiency of general sample dissolving method, so that difficultly soluble granite pegmatite can be more completely dissolved, and the accuracy of metal impurity content detection in granite pegmatite is improved.

The application discloses a method for extracting lithium, cesium and rubidium from pegmatite lithium concentrate, comprising the following steps: step 1, uniformly mixing mixed roasting additives with pegmatite lithium concentrate to obtain a mixture; step 2, performing alkali roasting on the mixture to obtain a calcine containing lithium, rubidium and cesium; step 3, finely grinding the calcine containing lithium, rubidium and cesium, and then adding a leaching agent to leach the calcine to obtain a solution containing lithium, rubidium and cesium; and step 4, extracting lithium, rubidium and cesium from the solution containing lithium, rubidium and cesium. By adding mixed roasting additives to the pegmatite lithium concentrate raw material, low-temperature alkali roasting can be realized. In addition, the method provided by the application can be used for large-scale industrial production, is energy-saving and environment-friendly, low in cost, and has a wide popularization prospect.

The invention provides an observation condition parameter determination method for granite pegmatite inversion, and relates to the technical field of mineral detection. The method comprises the following steps: acquiring multi-angle reflectivity spectral data of a plurality of particle samples, and determining a plurality of sample data according to the multi-angle reflectivity spectral data; each piece of sample data comprises a dimensionless bi-directional reflection factor corresponding to each characteristic wavelength of each particle sample in a plurality of particle samples corresponding to one observation condition parameter under a plurality of characteristic wavelengths; inputting multiple pieces of sample data into the trained convolutional neural network model, outputting an importance score corresponding to each piece of sample data in the multiple pieces of sample data, and determining observation condition parameters included in target sample data as target observation condition parameters, the importance score of the target sample data is the maximum value in the importance scores of the multiple pieces of sample data. And the accuracy and precision of the inversion result of the spectral data obtained by observation based on the target observation condition parameters are improved.

The invention provides high-purity quartz prepared by purifying granite pegmatite and a preparation method, and the preparation method comprises the following steps: pretreating granite pegmatite to obtain first quartz particles; performing high-temperature calcination and hydrothermal acid leaching on the first quartz particles to obtain second quartz particles; carrying out secondary scrubbing-flotation, washing and drying on the second quartz particles to obtain third quartz particles; performing chloridizing roasting, acid leaching, filtering, washing and drying on the third quartz particles to obtain the high-purity quartz. According to the method provided by the invention, dark impurity minerals can be deeply removed by combining three sections of strong magnetic separation, high-temperature calcination and hydrothermal acid leaching, tourmaline and quartz particles are fully dissociated or removed through acid dissolution, and the total removal rate of impurities of B, Fe, Al, Mg, Na and Li is greater than or equal to 99.9%. The mass percentage content of SiO2 in the prepared high-purity quartz can reach 99.995% (4N5) or above.

The application discloses a pegmatite high-purity quartz purification method and a purity extraction evaluation method, wherein the purification method comprises the following steps: S1, selecting a quartz sample C from a pegmatite high-purity quartz sample collected from the field by means of naked eye observation, microscopic slice observation and whole rock analysis; S2, performing laser confocal Raman spectrum determination on the quartz sample C to obtain typical characteristic peak value data and lattice Al data of fluid inclusions in the quartz sample C, removing the quartz sample that does not meet the requirements based on the lattice Al data to obtain a quartz sample D; S3, performing fluid inclusion temperature measurement on the screened quartz sample D, and selecting a quartz sample E with a homogenization temperature less than 600 DEG C from the quartz sample D; and performing explosion on the quartz sample E to obtain a final purified product. The application also provides a purity extraction evaluation method for the pegmatite high-purity quartz. The application realizes purification of the pegmatite high-purity quartz and grading evaluation of the purified quartz.

The invention relates to a method for detecting the content of hydroxyl in granite pegmatite raw ore, which comprises the following steps: S1, cutting granite pegmatite into a plurality of slices with different thicknesses, and cleaning the surfaces of the slices; s2, sequentially grinding and polishing the granite pegmatite ore slices under different mesh numbers, and then cleaning and drying; and S3, carrying out infrared spectrum test on the granite pegmatite ore slice, and calculating the hydroxyl content. Therefore, the hydroxyl content in the granite pegmatite can be detected, the detection precision and efficiency are greatly improved, anhydrous magnesium sulfate is adopted as a grinding key component, and a segmented grinding process is combined, so that the method is more suitable for testing requirements of different types of granite pegmatite.

The present invention belongs to the field of high-purity quartz preparation and relates to a method for preparing 4N8-grade high-purity quartz sand from pegmatite quartz. The method comprises: step 1: subjecting quartz concentrate obtained from pegmatite granite to a first acid leaching with a first acid solution, followed by washing and drying to obtain primary quartz sand and leachate III; step 2: subjecting the primary quartz sand to doping, roasting, water quenching, and drying to obtain primary mineral; step 3: subjecting the primary mineral to a second acid leaching with a second acid solution, followed by washing and drying to obtain intermediate quartz sand and leachate II; step 4: subjecting the intermediate quartz sand to a third acid leaching with a third acid solution, followed by washing and drying to obtain high-purity quartz sand and leachate I. The novel three-stage leaching and two-stage roasting / calcining process of the present invention is simple, easy to operate, has low energy consumption, and has excellent purification effects. It can produce a high-purity quartz sand product with SiO2 ≥ 99.998% while reducing leachate consumption.

The invention discloses a comprehensive prospecting prediction method for pegmatite type lithium ore, and relates to the technical field of pegmatite type lithium ore detection. The method comprises the following steps: delineating a large-scale geochemical exploration working area according to small-scale geochemical exploration anomalies; sampling 1: 50,000 water-based sediments; testing the water-based sediment sample, processing data and mapping; interpreting and evaluating geochemical exploration anomaly; geological survey of the prospecting target area; acquiring and processing hyperspectral remote sensing data; rock ground collection and feature analysis; extracting spodumene pegmatite from a hyperspectral remote sensing satellite image; predicting spodumene pegmatite vein in a regional range; and verifying the prediction effect. According to the comprehensive prospecting prediction method for the pegmatite type lithium ore, prospecting prediction is carried out by integrating multiple methods such as geology, geochemical exploration, remote sensing and hyperspectrum, the prediction precision and exploration efficiency of the pegmatite type lithium ore can be remarkably improved, and the increasing lithium requirement is met.

The application relates to a pegmatite type lithium ore prediction method and system based on Li / La element ratio anomaly, and belongs to the technical field of mineral quantitative prediction. The application solves the problem that key ore-forming indexes are uncertain in current pegmatite type lithium ore prediction, leading to inaccurate extraction and prediction of ore-forming information. A hierarchical lithium ore knowledge graph is constructed based on obtained mine area literature data, knowledge reasoning retrieval is performed based on the hierarchical lithium ore knowledge graph, and key features controlling ore formation are determined. The key features are extracted according to the geochemical data of the predicted mine area, and the ratios of the key features are determined. The ratios are subjected to anomaly determination to predict the ore formation of the pegmatite type lithium ore. Through knowledge reasoning retrieval of the hierarchical lithium ore knowledge graph, key ore-forming indexes are found to predict the ore formation of the pegmatite type lithium ore, so as to more accurately extract ore-forming information and predict the mine area.