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448 results about "Maceral" patented technology

A maceral is a component, organic in origin, of coal or oil shale. The term 'maceral' in reference to coal is analogous to the use of the term 'mineral' in reference to igneous or metamorphic rocks. Examples of macerals are inertinite, vitrinite, and liptinite.

Research method for vanadium enrichment mechanism in diagenetic stage of phosphorus vanadium ore

The invention belongs to the technical field of vanadium enrichment mechanisms of phosphorus vanadium ores, and discloses a research method of a vanadium enrichment mechanism in a diagenetic stage of phosphorus vanadium ores, which comprises the following steps: S1, sample collection and treatment; s2, rock ore identification and mineral composition analysis; s3, analyzing the occurrence state and microcell morphology of vanadium; s4, performing geochemical analysis on the whole rock; s5, in-situ microcell geochemical analysis is carried out; s6, phosphorus nodule analysis; s7, comprehensive analysis and mineralization model establishment; according to the method, mineralogy, total rock geochemistry, micro-area surface scanning and other multi-scale and multi-means research methods are comprehensively utilized, and the vanadium occurrence state, the ore-forming fluid evolution and the phosphorus-vanadium coupling relation are finely described; in-situ microcell geochemical analysis is introduced into phosphorus nodule analysis, the internal structure, the growth sequence and element distribution of the phosphorus nodule are directly revealed, obvious frontier and systematicness are achieved, and reliable theoretical support is provided for accurate exploration of vanadium ore resources and green and efficient dressing and smelting process research and development.
Owner:ANHUI UNIV

Remote sensing identification method for alteration zoning of hydrothermal vein type gold deposit

PendingCN121482629AScene recognitionMachine learningThermal infrared remote sensingSynthetic aperture radar
The invention discloses a hydrothermal vein type gold deposit alteration zoning remote sensing identification method, and the method specifically comprises the following steps: S1, carrying out multi-platform remote sensing cooperative interpretation, and obtaining the initial alteration zoning information of a regional scale. According to the hydrothermal vein type gold deposit alteration zoning remote sensing identification method, through organic combination of multi-platform remote sensing cooperative interpretation and unmanned aerial vehicle fine mineral mapping, cross-scale detection from regional scale preliminary alteration zoning identification to target region scale alteration lithofacies accurate delineation is realized; the problems that a traditional remote sensing method is single in scale and insufficient in precision in alteration zoning recognition are effectively solved. According to the method, the complementation advantages of multi-temporal optical remote sensing, synthetic aperture radar and thermal infrared remote sensing data are utilized, accurate recognition of key altered minerals is achieved in combination with hyperspectral data of the unmanned aerial vehicle, and the certainty of alteration zoning boundaries and the accuracy of lithofacies classification are remarkably improved.
Owner:山东省地质矿产勘查开发局第三地质大队(山东省第三地质矿产勘查院山东省海洋地质勘查院)

Method for carrying out mineral and element relation analysis on gold-bearing mineral based on image matching and data fusion and application thereof

The invention relates to the crossing field of mineralogy and geochemistry, in particular to a mineral and element relation analysis method for gold-bearing minerals based on image matching and data fusion and application of the mineral and element relation analysis method. Comprising the steps of ore sample processing, gold-bearing mineral image calibration through AMICS, trace element scanning through fixed-point EPMA and EDS, image-level matching and spatial data fusion and gold-bearing mineral-element relation analysis. According to the method, the AMICS mineral map and the EPMA element information are fused, relation analysis of trace elements in the gold ore and visual reconstruction of a mineral-element corresponding mechanism can be achieved, and effective data and image models are provided for microcosmic metallogenic information requirements in digital mine construction.
Owner:INST OF MULTIPURPOSE UTILIZATION OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI +1

Method for analyzing diagenesis of clay minerals by combining physical simulation and numerical simulation

The invention discloses a method for analyzing diagenesis of clay minerals by combining physical simulation and numerical simulation, which comprises the following steps: selecting clay single minerals, and preparing a formation water solution; respectively filling the clay single mineral and the stratum water solution into a plurality of reaction kettles, and carrying out diagenesis physical simulation; establishing a numerical simulation model with the same physical simulation experiment condition, and outputting mineral and ion data; according to mineral and ion data, fitting a physical simulation experiment result and a numerical simulation result, and determining a mineral corrosion rate; and establishing a geologic model by taking the mineral dissolution rate as a reference, and performing clay single mineral diagenesis simulation within a geological time scale. According to the method, numerical simulation parameters are constrained by physical simulation experiment results, and comparison and verification of numerical simulation and physical simulation results are realized by adjusting mineral corrosion kinetic parameters in real time, so that the numerical simulation experiment results are close to actual conditions.
Owner:PETROCHINA CO LTD

Gold ore phase analysis method

The invention provides a gold ore phase analysis method, and belongs to the field of mineral analys.The gold ore phase analysis method comprises the steps that a gold ore sample is prepared into ore pulp, the pH value is adjusted to 10-11, ultrasonic cavitation treatment is conducted after polyethylene glycol is added, and limonite turbid liquid and sedimentation bottom mud are obtained through separation; the turbid liquid is subjected to flocculation precipitation, drying, roasting, acid dissolution and impurity removal, and the limonite gold-loaded grade is obtained through the mass difference before and after dissolution and gold concentration determination; separating metal sulfide ore heavy minerals and gangue minerals from the settled bottom mud through artificial heavy elutriation, performing acid dissolution and impurity removal on the metal sulfide heavy minerals, and calculating the gold loading grade of the metal sulfide heavy minerals through mass difference and gold concentration determination; after gangue minerals are subjected to oxidizing roasting, the gold content is measured after concentrated acid dissolution; and calculating the distribution rate of gold based on the result. The gold loading grade and distribution of the limonite phase, the metal sulfide ore phase and the gangue mineral phase are measured in a split-phase mode, the method is highly matched with the gold ore development process, operation is easy and convenient, the result is reliable, and beneficiation and metallurgy technological process formulation and technical index pre-judgment can be effectively served.
Owner:SICHUAN XIYE GEOLOGY TESTING TECH CO LTD

Three-dimensional multi-mineral digital core modeling method

The invention belongs to the technical field of oil and gas reservoir rock data identification, and particularly relates to a three-dimensional multi-mineral digital core modeling method. According to the method, a 2D-3DGAN algorithm is provided, a three-dimensional data volume can be generated only by using a single two-dimensional picture, the advantages of a 2D-3DGAN method and an AMICS method are combined, a modeling method of 'AMICS + 2D-3DGAN' is provided to establish a multi-mineral, high-precision and efficient three-dimensional multi-mineral digital core, the representative two-dimensional ore scanning image is obtained by using the 2D-3DGAN method, and the three-dimensional data volume can be generated only by using a single two-dimensional picture. And generating a three-dimensional multi-mineral digital image by using the obtained two-dimensional mine scanning image as a training image. The built model not only contains multiple minerals, but also gives consideration to accuracy and economical efficiency, can represent reservoir rocks, and provides a firm basis for subsequent diagenesis simulation based on multi-mineral digital cores and research on electrical, acoustic and mechanical properties of reservoirs.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Mine sample analysis method and system based on spectrum correction

The invention provides a mine sample analysis method and system based on spectrum correction, and relates to the technical field of mine component analysis. The method comprises the following steps: firstly, preprocessing a first mine sample, respectively obtaining an XRF energy spectrum and a gamma energy spectrum, then, carrying out fusion processing on the two energy spectrums to obtain a first spectrum fusion feature vector, carrying out analysis based on a machine learning model to obtain mineral combination analysis information of the first mine sample, and finally, obtaining a second spectrum fusion feature vector of the first mine sample. At least one mine sample with the similarity meeting a preset requirement is found out from historical mine sample data according to the mineral combination analysis information, the determined collection parameters of the target mine sample serve as an optimal photon energy-time parameter set, analysis processing of the first mine sample is completed, and an analysis report is formed. According to the technical scheme, the optimal analysis parameter is determined through two steps of artificial intelligence and big data screening, so that the mine analysis result is more accurate.
Owner:JIANGSU ENTRY-EXIT INSPECTION & QUARANTINE BUREAU IND PROD TESTING CENT +1

Systems and methods for evaluating hydrogen generation potential using magnetic susceptibility and gravity measurements for geologic hydrogen exploration

A method for evaluating geological hydrogen source rock in a region is provided. The method includes: collecting magnetic susceptibility data from a plurality of subsurface locations in the region; receiving geophysical survey data of the region, wherein the geophysical survey data comprises geophysical data collected from above ground; tying the magnetic susceptibility data of the plurality of subsurface locations to the geophysical survey data; generating a geologic map of igneous rock, metamorphic rock, or mafic mineral- or iron-rich sedimentary rock within the region based on the magnetic susceptibility data using a model; and determining, based on the geologic map, a target zone of the geological hydrogen source rock with a potential for hydrogen production or with the potential for hydrogen accumulation.
Owner:KOLOMA INC

Efficient mineral selective flotation reagent and application thereof

The invention discloses an efficient mineral selective flotation reagent and application thereof, and aims to improve the selectivity and recovery rate of mineral flotation. The composition comprises a first precursor (P1), a second precursor (P2), and a resonance activation adjuvant (Aux). The first precursor P1 has an anchoring group capable of acting on the surface of a target mineral and a first reactive functional group; the second precursor P2 includes a hydrophobic group and a second reactive functional group capable of a ligation reaction with the first reactive functional group of P1. The application method comprises the following steps: adding P1 and Aux into ore pulp to react with minerals; and applying an external energy field (such as ultrasonic wave or illumination with specific wavelength) to activate P1 and Aux adsorbed on the surface of the mineral. Through an in-situ interface reaction strategy assisted by an external energy field, directional adsorption and effective coverage of the agent on the surface of the mineral are remarkably improved, flotation dynamics is improved, flotation requirements of different mineral types can be met, and a new technical approach is provided for efficient utilization of complex and refractory ores.
Owner:ZHENGZHOU UNIV

Systems and methods for the recovery of hydrogen, energy, and minerals from geological environments

PCT designated stageWO2026073263A1ConstructionsFluid removalMaceralFluid injection
A method for fracturing a subsurface rock formation for hydrogen production includes injecting a fluid comprising water into a subsurface rock formation under controlled conditions, generating fractures in the subsurface rock, and recovering hydrogen gas produced by subsurface rock after the generation of the fractures. The fluid is injected at a pressure below the breakdown pressure of the subsurface rock.
Owner:GEOREDOX INC

Method for evaluating contribution of each component to resistivity of shale oil reservoir at high temperature and high pressure

A method for evaluating contribution of each component to shale oil reservoir resistivity at high temperature and high pressure is applied to the field of oil exploration and development. The method comprises the following steps: (1) analyzing the volume percentage of each clay mineral, the pore water content and the mineralization degree of the shale oil reservoir pressure-maintaining closed core; (2) when the fluid pressure is greater than 23MPa, measuring the resistivity of the pressure-maintaining closed rock core at each temperature point; (3) carrying out water balance treatment on pure clay minerals, namely kaolinite, montmorillonite, illite and chlorite, and measuring the resistivity at each temperature point when the fluid pressure is greater than 23MPa; (4) when the fluid pressure is greater than 23MPa, measuring the resistivity of each temperature point of the solution consistent with the mineralization degree of the pore water; and (5) constructing a resistivity evaluation model, and evaluating the contribution of each component to the resistivity of the shale oil reservoir under the condition of high temperature pressure.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Method and equipment for predicting and optimizing CO2 mineralization storage efficiency and storage medium

The invention relates to a method and equipment for predicting and optimizing CO2 mineralization storage efficiency and a storage medium. The method comprises the following steps: constructing a mineral supercell structure model and obtaining a stable configuration of a target mineral; constructing a vacuum layer based on the stable configuration, and filling H2O molecules and CO2 molecules to construct a CO2-water-mineral system model; carrying out reaction molecular dynamics simulation to obtain atomic motion trail and bond level change information; calculating the CO2 sequestration rate; drawing a three-dimensional carbon sequestration mechanism distribution diagram; and the sealing conditions of actual geological sealing engineering are optimized. According to the method, adsorption and chemical reaction behaviors of CO2 in underground rock pores are reduced, the storage condition of CO2 is quantified, then the influence of parameters such as temperature, pressure and water content on the CO2 storage rate is evaluated, the storage effects under different conditions are compared, a basis can be provided for optimizing the optimal storage condition, and the storage efficiency of CO2 is improved. The method has important guiding significance on design and optimization of a sealing scheme in practical engineering.
Owner:NANJING TECH UNIV

Shale carbon dioxide adsorption expansion damage experiment method considering hydration state

PendingCN121933340APrecisely controllable hydration statusSolve unquantifiable problemsMaterial analysis using wave/particle radiationMaterial strength using tensile/compressive forcesPorosityClay minerals
The invention belongs to the field of carbon dioxide geological sequestration and oil-gas field development, and relates to a shale carbon dioxide adsorption expansion damage experiment method considering a hydration state, which comprises the following steps: processing a shale sample according to requirements; the shale is subjected to constant-humidity regulation and control pretreatment, and in the process, different relative humidity environments can be used for pretreatment, so that the influence of different clay mineral hydration interlayer spacing states on adsorption expansion is obtained; soaking the pretreated shale in supercritical carbon dioxide, adsorbing the sample when the temperature and pressure conditions reach a set value, soaking until the rock sample reaches adsorption saturation, and treating by using carbon dioxide with different pressures and temperature gradients; according to collection of sample microstructure and mechanical data, damage can be treated through crack initiation position comparison, porosity and gray scale quantitative analysis and macro-mechanical parameter evolution. The method provides an experimental method for carbon dioxide geological sequestration safety assessment and shale gas fracturing parameter optimization.
Owner:LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY

Gold mine prospecting target area intelligent delineation method and system based on multi-source geological data

The invention provides a gold mine prospecting target area intelligent delineation method and system based on multi-source geological data, and relates to the technical field of mineral exploration. Remote sensing images, geophysical exploration and earth surface rock chemical data associated with gold mine mineralization are collected, and according to the gold mine mineralization characteristics, the gold mine prospecting target area intelligent delineation method and system based on the multi-source geological data are obtained; correcting gold element space distribution difference, decomposing mineral spectrum mixing information, and strengthening mineralization related characteristic information. Then mining a data feature association relationship based on the feature information, the physical exploration data and the geochemical data, constructing a metallogenic association network, and inputting the feature information to obtain metallogenic association parameters; calculating mineralization probability values point by point in combination with spatial distribution characteristics of the multi-source geological data, generating a continuous mineralization probability curved surface, finally screening areas with probability values higher than a preset threshold value, locking a conforming closed area in combination with a typical gold ore deposit model, and recording coordinate boundary information to generate a gold ore prospecting target area map. The intelligent and accurate delineation of the gold ore prospecting target area can be realized.
Owner:SINOTECH MINERALS EXPLORATION +1

Measurement method for accurately measuring content of elements in fine mineral powder

The invention discloses a method for accurately measuring the content of elements in fine mineral powder, and relates to the technical field of fine mineral powder separation and determination, and the method comprises the following steps: S1, Thai sieve classification and production control final analysis; s2, ultrasonic sedimentation and micro powder pre-domestication; s3, carrying out double-sample separate test and conditional detection; s4, carrying out dense time measurement and particle fraction separation; and S5, precipitating a combined wall-particle size assembly. According to the method, the minerals exist in a more appropriate particle state by optimizing field operation, and the grading effect is enhanced, so that the recovery effect of useful minerals is improved, the loss in tailings is reduced, and the problem of determining the content of particles with different sizes and the content of elements in the separation and detection of the micro-fine-particle-grade minerals is solved.
Owner:安徽铜冠产业技术研究院有限责任公司

Method for estimating adsorption capacity of CO2 / CH4 in shale reservoir based on molecular simulation

The invention discloses a molecular simulation-based method for estimating CO2 / CH4 adsorption capacity in a shale reservoir, which comprises the following steps of: firstly, selecting different mineral components from the shale reservoir, and determining reservoir temperature and pressure corresponding to each mineral component; the method comprises the following steps: constructing molecular models of different mineral components in a shale reservoir and a to-be-detected gas molecular model by using molecular simulation software, and carrying out geometric optimization; setting temperature and pressure conditions conforming to the actual reservoir in the simulation environment, and introducing gas molecules to perform molecular dynamics simulation so as to research the competitive adsorption behavior and obtain adsorption quantity data; based on simulation data, an adsorption capacity calculation expression comprehensively considering the coupling influence of multiple factors such as temperature and pressure is established, and the actual shale reservoir gas adsorption capacity is rapidly and accurately estimated. Through molecular simulation, the limitation that a traditional experiment is long in period, high in cost and difficult to separate multi-factor influences is overcome, and an efficient and reliable theoretical tool is provided for shale gas reserve prediction and carbon dioxide geological storage benefit evaluation.
Owner:HUNAN UNIV OF SCI & TECH

Quantitative recovery method for shale clay mineral composition

The invention relates to the field of organic matter-rich shale mineral type and cause research, and discloses a shale clay mineral composition quantitative recovery method, which comprises: S1, cutting and polishing a shale sample, and carrying out argon ion polishing; s2, based on SEM-EDS combined analysis, collecting morphology and energy spectrum characteristics of clay minerals with different causes, and constructing a clay mineral cause standard library; s3, AMICS analysis parameters are optimized, and 2-4 vision fields are selected for scanning to generate original data; s4, processing the scanning data, calculating the mineral content, and performing cross validation with an XRD-Rietveld result; and S5, in combination with a diagenetic evolution sequence and a mass conservation principle, inverting the contents of original montmorillonite and clastic clay minerals. According to the method, clay minerals of different causes are distinguished through the SEM-EDS double-constraint model, AMICS parameters are optimized, the recognition precision is improved, and quantitative recovery of original components is achieved in combination with diagenetic inversion.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Geological sketching method for tunnel faces based on image spectrum technology, and system thereof

An image spectrum technology-based geological sketching method, including: based on collected image-spectrum data information of a tunnel face, extracting mineral end members and spectrum to determine types and contents of minerals, extracting texture features and feature waveband spectrums to determine stratum lithology, extracting crack features and identifying crack fillers to obtain a crack identification result; obtaining degrees of crushing of surrounding rocks according to numbers and relative areas of cracks; analyzing weathering variation proportions of minerals according to stratum lithology and mineral analysis result for surrounding rocks, acquiring color differences between different degrees of weathering according to spectral color difference identification results, obtaining degrees of weathering of the surrounding rocks; identifying water outflow form and water outflow position of tunnel face to be detected; and obtaining a geological sketch map for the tunnel face by performing labeling and summarization by using different labeling symbols according to the results.
Owner:SHANDONG UNIV

Method for identifying and characterizing salt phase in salt shale based on CT (Computed Tomography) scanning technology

The invention discloses an inter-salt shale salt phase identification and characterization method based on a CT scanning technology, and the method comprises the following steps: scanning a real shale core through a micron CT to obtain a shale core three-dimensional scanning image, and scanning the end face of the real shale core through QEMSCAN mineral quantification to obtain a two-dimensional color mineral dissemination image; performing cross-resolution pixel-level alignment processing on the two-dimensional image of the end face of the shale core three-dimensional scanning image and the two-dimensional color mineral dissemination image; performing threshold segmentation on the two-dimensional image of the end face of the three-dimensional scanning image of the shale core in combination with the two-dimensional color mineral dissemination image, and applying the divided threshold to the three-dimensional scanning image of the shale core; and finally, extracting a salt phase pore network model, and carrying out statistical analysis on related characteristic parameters. According to the identification and characterization method for the salt phase in the intersalt shale, accurate identification of the salt mineral phase in the intersalt shale is achieved, and a basis is established for follow-up salt dissolution and recrystallization simulation work.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Coal by-product resource utilization method based on reduction roasting-magnetic separation enrichment

The invention discloses a coal by-product resource utilization method based on reduction roasting-magnetic separation enrichment, and belongs to the technical field of coal processing by-product resource utilization. The invention provides a combustion oxidation decarburization-high-temperature reduction roasting-ore grinding dissociation-high gradient magnetic separation combined iron extraction process. Comprising the steps that liquefied slag is oxidized and decarbonized to generate ash (iron-containing minerals are oxidized into Fe2O3), reduction roasting is conducted (Fe2O3 is converted into Fe3O4), ore grinding dissociation is conducted (intergrowth of Fe3O4 and gangue minerals is dissociated, monomer dissociation is achieved, and the magnetic separation efficiency and the iron ore concentrate quality are improved), high-gradient magnetic separation is conducted (Fe3O4 concentrate and non-magnetic gangue tailings are obtained), and efficient iron extraction is achieved. In addition, effective recovery and efficient utilization of resources are achieved, heat generated in the oxidation decarburization and reduction roasting process is used for material drying, concentrate drying and steam generation, heat energy consumption is reduced, and efficient utilization of the combustion heat value is achieved.
Owner:TAIYUAN UNIVERSITY OF TECHNOLOGY

A method and system for fdem simulation of mineral-scale shale hydrofracturing

PendingCN122283091AComplete hydration cracking processfully reflectedPorosityClay minerals
This invention belongs to the field of oil and gas production enhancement and stimulation technology. It provides a FDEM simulation method and system for mineral-scale shale hydration-induced fracturing. The method includes the following steps: obtaining target reservoir stress, rock porosity, and permeability; preparing rock samples from the target stratigraphic layer and obtaining the mineral composition and content through X-ray diffraction experiments; constructing a polycrystalline geometric model of the minerals using random Voronoi mosaic technology; conducting core immersion hydration experiments to obtain the relationship between core water content and time; setting initial and boundary conditions for the model and establishing a numerical model of clay mineral hydration expansion-induced fracturing based on the finite discrete element method; and conducting numerical experiments on shale hydration-induced fracturing to obtain the micro-fracture propagation morphology induced by clay mineral hydration expansion. This invention considers the non-uniform mosaic distribution of multiple minerals in the reservoir rock, simulates the non-uniform stress distribution induced by clay mineral water absorption and expansion, and realizes numerical simulation of the mineral-scale shale hydration-induced fracturing process.
Owner:SOUTHWEST PETROLEUM UNIV

A method for characterizing millimeter-scale shale oil and gas reservoir heterogeneity

The application provides a method for characterizing millimeter shale oil and gas reservoir heterogeneity, which mainly solves the problem of low reliability and precision of existing volume sampling method for evaluating reservoir results. Its characteristics are as follows: S1: mud shale millimeter mineral component identification and drilling; S2: based on the obtained powder sample, oil and non-oil tests are carried out; by comparing before and after extraction, the occurrence pore size distribution is determined to characterize the reservoir property; S3: based on the obtained powder sample, the oiliness of different lamina / laminated components is characterized; S4: based on the reservoir property and oiliness of different lamina / laminated components, the millimeter shale oil reservoir heterogeneity is characterized. The method can enhance the identification accuracy of shale lamina / laminated structure, realize millimeter fine characterization of different lamina / laminated properties, and provide favorable support for shale oil enrichment mechanism and "sweet spot" prediction.
Owner:DAQING OILFIELD CO LTD +1

A method of porosity analysis of heap leach ores

The application provides a heap leaching ore porosity analysis method and relates to the technical field of mineral processing and geological analysis. The analysis method associates material particle size composition, target element occurrence state and pore structure, can significantly improve the practicability of porosity evaluation, and thus overcomes the technical problem that the traditional method cannot reveal that the occurrence state and content distribution of target valuable elements in different particle sizes are significantly different, and then leads to the problem that different particle sizes do not contribute equally to the overall porosity.
Owner:CHANGCHUN GOLD RES INST

A method for selective sulphidizing roasting-flotation separation of smithsonite-calcite mixed ore

PendingCN122298584ASmithsoniteCalcite
This invention belongs to the field of mineral processing technology, specifically relating to a selective sulfidation roasting-flotation separation method for a smithsonite-calcite mixed ore. The method first involves crushing and grinding the smithsonite, calcite, and sulfiding agent, then mixing them in a certain proportion and subjecting them to sulfidation roasting, preferentially causing the smithsonite to undergo sulfidation. After cooling the roasted product in an inert atmosphere, flotation separation is performed using xanthate as a collector to obtain zinc concentrate. By controlling the atmospheric conditions during the sulfidation roasting process, the sulfidation reaction efficiency of the smithsonite can be improved, and the generation of sulfur oxide gases during roasting can be reduced. When using this method to process the smithsonite-calcite mixed ore, effective recovery of the smithsonite can be achieved, with a flotation recovery rate exceeding 88%. This invention features a simple process flow and easily controllable operating conditions, providing a new technical approach for the efficient utilization of smithsonite resources.
Owner:NORTHEASTERN UNIV CHINA

A single-stage oil inclusion composition analysis method based on crude oil inclusion body

The present application belongs to the technical field of petroleum geological exploration and analysis, and particularly relates to a single-period oil inclusion composition analysis method based on crude oil inclusions. The present application combines fluorescence microscopic observation and quantitative fluorescence analysis methods, can accurately determine the diameter of oil inclusions, determine the appropriate grinding mesh, and identify the period of oil inclusions in the microscopic observation stage, and provides clear basis for the subsequent experimental process. The analysis of the present application covers the differential processing method of oil inclusions in calcite and quartz minerals, can efficiently and completely perform group composition pretreatment on oil inclusion-containing particles, is convenient to operate, has good reproducibility, and provides reliable technical support for revealing the oil and gas charging history and restoring the reservoir forming process. The present application adopts a crushing device equipped with a low-cost, large-capacity closed zirconium oxide grinding tank, realizes synchronous crushing of multiple samples on the basis of optimizing experimental equipment, and significantly improves the sample processing flux and experimental efficiency.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

A mineral preselection method based on controllable shock wave pre-splitting

ActiveCN120023001BMining engineeringMaceral
The application discloses a mineral preselection method based on controllable shock wave pre-splitting, and relates to the technical field of mineral preselection, and comprises the following steps: pre-crushing ore to obtain pre-crushed ore, wherein the ore comprises minerals and rocks; conveying the ore with a particle size less than or equal to a small particle size in the pre-crushed ore to a ball mill for crushing; conveying the ore with a particle size greater than the small particle size in the pre-crushed ore to a controllable shock wave treatment device, performing shock wave operation on the pre-crushed ore by the controllable shock wave treatment device, transmitting the shock wave to the inside of the pre-crushed ore, depositing the shock wave energy in the medium density discontinuous region between the minerals and the rocks, and making the fissure autonomously expand in a shearing and stretching manner, so that the ore is crushed and primary crushed ore is obtained; and the shock wave operation uniformly reduces the mechanical strength of the primary crushed ore, and the effect of crushing the ore and preselecting the ore with different particle sizes is achieved.
Owner:JINDUICHENG MOLYBDENUM GROUP CO LTD +2

Apparatus, system, and method for the recovery of fine heavy minerals

PCT designated stageWO2026112723A1Differential sedimentationFlotationMining engineeringSlurry
A method, system, and apparatus for recovering fine heavy minerals from particulate ore. At least two inclined recovery surfaces are provided for parallel operation, and a liquid slurry containing the heavy minerals is supplied to at least one of the surfaces to remove the heavy minerals from the slurry in a heavy minerals capture cycle. In a cleaning cycle, the heavy minerals are released from the at least one surface for collection, which release is preferably achieved by applying water jets which may be disposed on spray bars positioned along the length of the surface and may be applied sequentially to drive the heavy minerals toward a discharge end for collection. A valve arrangement allows the liquid slurry to engage one surface for the heavy mineral capture cycle, while diverting the liquid slurry away from another surface to allow the cleaning cycle, and the valve arrangement may be automatically controlled.
Owner:AJ MIN INC

Beneficiation method for recovering micro-fine particle cassiterite from tin-containing tailings

PendingCN122032730AFlotationWet separationMining engineeringCassiterite
The invention relates to the technical field of mineral recycling, in particular to a beneficiation method for recycling fine cassiterite from tin-containing tailings. According to the beneficiation method for recycling the micro-fine cassiterite, through screening, spiral chute, table shaking and centrifugation combination and process optimization, efficient pre-enrichment of the micro-fine cassiterite can be achieved, and by throwing and removing slime in advance, the adverse effect of the slime on the subsequent beneficiation process is avoided from the source.
Owner:CHINA MINMETALS CHANGSHA MINING RES INST

Beneficiation method for efficiently separating scheelite, wolframite and cassiterite in tungsten-tin bulk concentrate

PendingCN121551141AWet separationCassiteriteMaceral
The invention discloses a beneficiation method for efficiently separating scheelite, wolframite and cassiterite in tungsten-tin bulk concentrate. The beneficiation method comprises the following steps that (1) the tungsten-tin bulk concentrate is firstly subjected to ore grinding, flotation desulfurization and magnetic separation iron removal, and iron-removed tailings are obtained; (2) performing scheelite normal-temperature flotation on the iron-removed tailings to obtain scheelite rough concentrate and scheelite flotation tailings; (3) the scheelite rough concentrate is subjected to flotation upgrading, scheelite upgraded rough concentrate is obtained, and wolframite and cassiterite are deeply inhibited in the flotation upgrading process; the scheelite quality-improved rough concentrate is subjected to quality-improved fine selection, and scheelite concentrate is obtained; (4) the scheelite flotation tailings are subjected to magnetic separation to achieve separation of wolframite and cassiterite, and wolframite concentrate and tin rough concentrate are obtained; and (5) gangue minerals are removed from the tin rough concentrate through electric separation, and tin concentrate is obtained. According to the beneficiation method, tungsten and tin resources can be efficiently and comprehensively recycled.
Owner:CHANGSHA RES INST OF MINING & METALLURGY CO LTD

A method for predicting rock physical shear wave velocity of deep water ultra-shallow natural gas reservoir

The present application relates to the geological exploration technical field, more particularly, to a deep water super shallow layer natural gas reservoir rock physics shear wave velocity prediction method, comprising: calculating equivalent bulk modulus, shear modulus and density of a plurality of mineral mixed matrix according to shale content; then calculating skeleton bulk modulus and shear modulus; then calculating saturated rock bulk modulus and shear modulus through a model, and calculating saturated rock density through rock matrix density; distributing longitudinal and transverse velocities of suspended state and bearing state, and calculating equivalent longitudinal and transverse wave velocities; using equivalent longitudinal wave velocity to construct an inversion objective function with longitudinal wave velocity as a known condition; comparing actual longitudinal wave velocity with calculated longitudinal wave velocity; realizing nonlinear inversion of transverse wave velocity according to an algorithm, and obtaining transverse wave velocity of a to-be-inverted work area. The present application simultaneously considers rock physics models of particle suspended state and bearing state, and realizes transverse wave velocity prediction and deep water super shallow layer natural gas reservoir transverse wave velocity direct inversion.
Owner:HAINAN BRANCH OF CHINA NATIONAL OFFSHORE OIL (CHINA) CO LTD