Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

50 results about "Copper mine" patented technology

Copper ore prediction method based on multi-source data

The invention provides a copper mine prediction method based on multi-source data, and the method comprises the steps: S11, taking a copper mine geological report as a data source, and enabling the copper mine geological report to comprise a geological map, geophysical data, a geochemical sample analysis result and a remote sensing image; s12, respectively carrying out vectorization processing on the data obtained in the step S11; s13, inputting the information processed in the step S12 into a machine learning model for feature extraction, and filling the extracted features into a copper ore distribution diagram; s14, constructing a multi-modal copper mine prediction model, inputting the copper mine distribution diagram into the multi-modal copper mine prediction model for training, and obtaining a trained multi-modal copper mine prediction model; and S15, inputting the newly obtained copper ore geological report into the multi-mode copper ore prediction model to obtain a copper ore distribution prediction map of the target area. According to the method, the relevance and similarity of the multi-source data in the copper mine geological report are extracted, the multi-mode copper mine prediction model is established to predict the potential position of the copper mine, and the success rate and efficiency of prospecting are improved.
Owner:CHINA GEOLOGICAL SURVEY HAIKOU MARINE GEOLOGICAL SURVEY CENT

Method for flotation of copper cobalt oxide ore by using magnesium-containing tailing water

ActiveCN119588523AImprove flotation effectFlotationEthylic acidCopper oxide
The invention belongs to the field of flotation, and particularly relates to a method for flotation of copper cobalt oxide ore by using magnesium-containing tailing water, the magnesium-containing tailing water is used as flotation water to carry out five-stage roughing on the copper cobalt oxide ore, the first-stage roughing is carried out under a vulcanizing agent and a xanthate-thionocarbamate collecting agent, and the second-stage roughing is carried out under the action of a flotation agent; and the second-stage roughing is carried out under the condition of containing a compound additive, a vulcanizing agent and xanthate-hydroximic acid. The third-stage roughing is carried out under the action of a vulcanizing agent and xanthate-hydroximic acid; and the fourth-section roughing process and the fifth-section roughing process are carried out under the action of a hydroximic acid collecting agent. The compound additive comprises a component A and a component B with a structure shown in a formula 1 (# imgabs0 #); the component A comprises at least one of ammonium carbonate, ammonium bicarbonate, ammonium nitrate, ammonium acetate, ammonium sulfate and ammonium chloride; and the composite collecting agent comprises a xanthate collecting agent and a hydroximic acid collecting agent. By means of the method, the problem of flotation degradation caused by magnesium-containing tailing water recycling can be solved, and the excellent flotation effect can be achieved.
Owner:NORIN MINING LTD +1

Method for determining heat source center of gold and copper ore area containing alunite minerals

The invention relates to the technical field of mineral exploration, and discloses a method for determining a heat source center of a gold and copper ore area containing alunite minerals, which comprises the following steps of: determining a to-be-detected area of a target mining area, sampling surface rocks according to a preset grid or section, and acquiring a plurality of rock samples and corresponding original acquisition points; carrying out mineral component analysis on the plurality of rock samples, screening the alunite-containing samples to obtain a plurality of alunite-containing samples, and screening effective samples; performing elemental component analysis on the effective sample, and extracting elements and contents related to gold mineralization or copper mineralization in the effective sample; setting a potential heat source center, calculating the distance between each effective sample and the potential heat source center, introducing a distance attenuation index, establishing an objective function of the element content and the distance, and adopting a gradient descent method to perform inversion solution by minimizing the objective function to obtain coordinates of the potential heat source center, namely the determined heat source center of the gold ore or the copper ore; the method improves the accuracy of gold and copper ore area heat source center exploration.
Owner:INST OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI

Extraction, purification and deep impurity removal method for nickel sulfate solution

The invention discloses an extraction purification deep impurity removal method for a nickel sulfate solution, and belongs to the technical field of nickel sulfate solution purification, and the extraction purification deep impurity removal method comprises the following steps: carrying out saponification treatment on a P204 extraction agent by adopting a sodium hydroxide solution to obtain a saponified organic phase P204, mixing the saponified organic phase P204 with a nickel sulfate water phase, stirring and standing to obtain a nickel sulfate solution; the method comprises the following steps: separating an organic phase from a water phase, mixing the organic phase with sulfuric acid, stirring, standing, separating out a nickel sulfate solution, concentrating the nickel sulfate, and recrystallizing to obtain the high-purity nickel sulfate with the purity of 99.4-99.9%. According to the method, the battery-grade nickel sulfate product with the purity as high as 99.9% can be obtained, the requirement of HG / T2824-2009 first-grade products is met, and the method is particularly suitable for purification of crude nickel sulfate generated in the copper ore smelting process and preparation of the battery-grade nickel sulfate.
Owner:LONGYAN UNIV

Heavy metal curing baking-free brick based on copper mine tailings and preparation method of heavy metal curing baking-free brick

The invention discloses a heavy metal curing baking-free brick based on copper mine tailings and a preparation method thereof, and belongs to the technical field of solid waste resource utilization, the heavy metal curing baking-free brick comprises the following raw materials by weight: 2-3 parts of lime, 7-9 parts of slag, 6-11 parts of cement, 65-75 parts of copper mine tailings, 0.5-1.5 parts of nano silica, and 3-5 parts of modified metakaolin. According to the method, the copper mine tailings can be effectively treated, heavy metal elements in the tailings can be solidified, environmental pollution and resource waste can be reduced, the baking-free bricks with good performance can be prepared, the using requirements of the fields such as buildings are met, remarkable economic and environmental benefits are achieved, and a feasible and effective way is provided for comprehensive utilization of the copper mine tailings. In addition, the preparation method provided by the invention is simple and convenient to popularize and apply.
Owner:安徽省地质矿产勘查局321地质队 +1

All-solid waste (Dexing copper mine tailing-steel slag-fly ash) system foamed ceramic and preparation method thereof

The invention discloses full solid waste system foamed ceramic and a preparation method thereof. The selected raw materials comprise Dexing copper mine tailings, steel slag and fly ash. The mass percent of the Dexing copper mine tailings is 53-69%, the mass percent of the steel slag is 6-8%, and the mass percent of the coal ash is 23-41%. The three raw materials are subjected to ball milling and complete drying, and are uniformly mixed with an organic binder (7wt% of a polyvinyl alcohol solution) accounting for 5% of the total mass of the raw materials in a ceramic mortar to obtain the batch. And pouring the batch into a metal mold, and carrying out compression molding on the batch under the pressure of 20MPa by using a small-sized manual sample press to obtain a foamed ceramic green body. The foamed ceramic green body is placed in a high-temperature muffle furnace for high-temperature sintering, the sintering schedule is 1180-1200 DEG C / 1 h, furnace cooling is carried out, and the foamed ceramic product is obtained. The prepared full-solid-waste-system foamed ceramic has excellent comprehensive performance, including low volume density (0.32-0.83 g / cm < 3 >), high porosity (61.64-89.12%) and high compressive strength (0.27-3.96 MPa), and has the potential of being applied to building walls and heat-insulating and fireproof materials.
Owner:SHANGRAO NORMAL UNIV

Methods for reducing abnormal difference in elevation measurement in mining areas

The present application discloses a method for reducing the abnormal difference of elevation measurement in a mining area, comprising the following steps: Step S1: removing the model gravity anomaly Δg from the observed gravity anomaly Δg GM and topographic gravity effect δN T Obtain the residual gravity anomaly, substitute the residual gravity anomaly into the Stokes formula, and calculate the residual geoid δN as follows r :Step S2: In the absence of gravity data, the geoid height N is decomposed according to the spectral structure characteristics of the elevation anomaly; Step S3: At the unknown point, the model elevation anomaly of the unknown point is calculated by the EGM2008 earth gravity field model, and the residual elevation anomaly ξ of the unknown point is added to the result C , get the final elevation anomaly value of the unknown point, and find the normal height of the unknown point. Through practice, the multifaceted function fitting method based on the "remove-restore" method has a good fitting effect in the Dahongshan copper mine area, and the normal height accuracy after fitting can reach the requirement of ±2cm.
Owner:YUXI MINING

Method for smelting copper by reducing copper sulfide ore through hydrogen

The method comprises the following steps: uniformly mixing copper sulfide concentrate powder with a binder and water, pelletizing, drying, adding into an electric arc furnace, heating to 1500-1600 DEG C, melting to form a molten pool, and introducing hydrogen into the molten pool; in the reaction process, pellets are continuously added into the electric furnace, and hydrogen is introduced into the electric furnace. And after the molten metal in the electric arc furnace reaches a certain amount and the pellets added into the furnace completely react, hydrogen feeding is stopped, oxygen is fed into the molten metal, iron in the molten metal is oxidized into FeO, and the FeO enters slag. And if the iron content in the molten metal is less than 0.5%, stopping blowing oxygen, pouring out slag for extracting iron, casting copper into an electrode plate, and carrying out anode refining to prepare electrolytic copper. And the slag is poured into another electric arc furnace, hydrogen is blown into a molten pool, a chemical reaction is carried out to obtain FeO + H2 = Fe + H2O, the obtained molten iron is used for steelmaking, and smoke heat is used for power generation.
Owner:GUANGXI CHIHAI RESOURCE CIRCULATION TECHNOLOGY CO LTD

A method for hierarchical recycling and large-scale consumption of copper mine tailings

The present invention discloses a method for the sequential recycling and large-scale consumption of copper mine tailings. The method of "flotation desulfurization - weak magnetic separation for iron removal - combined gravity and magnetic separation for mica separation - large-scale consumption of all tailings" is adopted. Through steps such as grinding, flotation desulfurization, weak magnetic separation for iron removal, screening and classification, gravity preconcentration, strong magnetic separation for fine selection, and large-scale consumption of all tailings, the recovery of valuable elements and the large-scale consumption of all tailings are realized. Non-ferrous metal mine tailings, especially copper mine tailings, which are difficult to be utilized on a large scale, are transformed into products such as iron concentrate, mica concentrate, and simulated stone that can be utilized with high value. It provides an economically feasible method for the large-scale consumption and high-value utilization of high-silicon copper mine tailings, is conducive to solving the resource waste and environmental pollution of copper mine tailings, and provides technical support for the comprehensive utilization of the same type of tailings in China.
Owner:INST OF MULTIPURPOSE UTILIZATION OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI

Composite flocculant for treating copper mine tailing filling wastewater as well as preparation method and application of composite flocculant

The invention discloses a composite flocculant for treating copper mine tailing filling wastewater and a preparation method and application thereof, the composite flocculant comprises anionic polyacrylamide, a medicament A and a medicament B, the medicament A is at least one of methyl cellulose, chitosan and bentonite, and the medicament B is at least one of sodium sulfate, aluminum sulfate and ferric chloride. The preparation method comprises the following steps: mixing the anionic polyacrylamide, the agent A and the agent B, and drying at the temperature of 60-120 DEG C to obtain the composite flocculant. The composite flocculant disclosed by the invention has the advantages of high settling speed, good flocculation effect, good stability, good adaptability and the like, can be widely used for treating copper mine tailing filling wastewater as a novel flocculant with excellent flocculation performance, can remarkably improve the settling rate, can effectively remove metal ions, organic pollutants and suspended matters in the wastewater, and has the advantages of high efficiency, high efficiency and the like. And moreover, the dosage is as low as 2g / ton of wastewater, the use value is high, and the application prospect is good.
Owner:JIANGXI COPPER TECHNOLOGY RESEARCH INSTITUTE CO LTD

A barrier for copper mining

This utility model relates to a copper mine isolation belt, comprising: two sets of uprights, each with a fixed shaft at its bottom end on both sides; a sliding track inside the upright and above the fixed shaft, with a stabilizing slider slidably mounted inside the track. This utility model relates to the technical field of copper mine isolation belts. When used on undulating terrain, this copper mine isolation belt allows for the rotation of upper and lower horizontal bars. By translating or pushing the upper or lower horizontal bars, the uprights on both sides can form an angle with the upper and lower horizontal bars, allowing the guardrail formed by the upper and lower horizontal bars to be used at an angle. Furthermore, the connecting piece allows the angle of the uprights on both sides to be changed when extended, creating an angle between the two uprights to effectively fence off protruding areas.
Owner:JIANGXI HONGSHAN COPPER IND CO LTD

Copper ore 5G module deployment auxiliary device

The utility model provides an auxiliary device for copper ore 5G module deployment, which belongs to the technical field of auxiliary devices and comprises a connector body, a metal film, a spring type contact, an insulating shell, a fixing buckle and a guide groove. The connector main body is made of stainless steel, the metal film is plated on the surface of the connector main body, the spring type contact is arranged in the connector main body, the insulating shell wraps the connector main body, the fixing buckles are arranged on the two sides of the insulating shell, the guide groove is formed in the surface of the insulating shell, and the metal film is plated on the surface of the connector main body. When the connector body is in butt joint with the 5G module, the contact body of the spring type contact is in close contact with the conductive pin of the 5G module to achieve electric connection, the technical problems that a traditional connector is poor in anti-corrosion performance and unstable in electric connection are solved, and the installation and maintenance efficiency is improved.
Owner:YUNNAN DIQING NONFERROUS METAL CO LTD

A device for prospecting sandstone type copper mine

The application provides a sandstone type copper mine prospecting device, and relates to the technical field of geological surveying.The device comprises a first tripod and a second tripod, three groups of guide rods are arranged between the first tripod and the second tripod, three groups of sliding racks are slidably connected to the guide rods, and three groups of supports are arranged on the second tripod.The device further comprises an anti-overload mechanism, the anti-overload mechanism comprises a mounting frame, a first turn wheel is arranged on the upper surface of the mounting frame, a second turn wheel is arranged on the lower surface of the mounting frame, a plurality of clamping grooves are arranged on the surfaces of the first turn wheel and the second turn wheel, three groups of fixing shafts are arranged between the mounting frame, a connecting plate is fixedly connected to the lower end surface of the mounting frame, a drilling pipe is arranged on the lower end surface of the connecting plate, and the drilling pipe is rotatably connected to the second tripod.The device solves the problem that the motor is overloaded due to the jamming of the drilling pipe of the traditional prospecting device under complex geological conditions by means of the anti-overload mechanism.
Owner:四川省第七地质大队 +1

Copper ore target prediction method and system based on multi-source information data analysis

The invention provides a copper mine target area prediction method and system based on multi-source information data analysis, and relates to the technical field of computers.The method comprises the steps that firstly, multi-source copper mine related basic information such as earth surface rock outcrop records, soil element content data, area gravity observation data, remote sensing image feature data and geologic structure surveying and mapping data of a target area is collected; performing clue traceability mapping processing on the multi-source basic information to generate a plurality of groups of traceability clue sets; then performing space-time coupling networking processing on the multiple groups of traceability clue sets to construct a dynamic coupling clue network; performing signal resonance strengthening processing on the dynamic coupling clue network to generate a resonance strengthening network; and finally, target region convergence defining processing is executed based on the resonance strengthening network to generate a copper mine target region prediction result, the mineralization potential region range is gradually reduced, the generated copper mine target region prediction result of the target region has higher accuracy and reliability, copper mine exploration work can be effectively guided, the exploration efficiency and success rate are improved, and the exploration cost is reduced.
Owner:THE 4TH GEOLOGICAL BRIGADE OF SICHUAN

Environment-friendly flotation method and system for flotation recovery of copper ore and gold ore

The invention discloses an environment-friendly flotation method and system for flotation recovery of copper ore and gold ore, and relates to the technical field of wastewater treatment.The environment-friendly flotation method comprises the steps that minerals are prepared and treated, the treated minerals are subjected to rough flotation and fine flotation through a flotation machine, and water treatment is conducted on ore pulp obtained after rough flotation and an ore pulp mixture in the flotation machine; the treated water resource is conveyed into a flotation machine to participate in ore pulp concentration, the concentrated foam ore pulp is subjected to a follow-up recycling process, metal materials in the ore pulp are recycled and extracted, water treatment is conducted on the ore pulp with the metal materials extracted, the quality of ore pulp water treatment and quality inspection after waste water treatment are detected, and the treated waste water is discharged and used. According to the environment-friendly flotation method and system for flotation recovery of the copper ore and the gold ore, wastewater treatment and recycling are implemented in the flotation process, it is ensured that water resources in ore pulp can be reused, dependence on a new water source is reduced, and consumption of the water resources is reduced.
Owner:SHAANXI QINTENGYUE IND CO LTD

A combined depressor for arsenic removal from copper-arsenic mixed concentrate by flotation and its application method

The application discloses a combined depressor for flotation and arsenic removal of copper-arsenic mixed concentrate and an application method thereof, and relates to the technical field of ore dressing.The combined depressor is composed of depressor A and depressor B, wherein the depressor A is a mixture of magnesium ammonium chloride and aluminum sulfate, and the depressor B is a mixture of tartaric acid and carboxymethyl chitosan.The combined depressor and ultrasonic coupling mechanical stirring oxidation are combined to realize strong depression of sulfur-arsenic-copper ore and arsenic-malachite in the copper-arsenic mixed concentrate.The combined depressor is green and pollution-free, the application method is simple and easy for industrial production, and the application method can selectively depress arsenic-containing minerals without adding oxidizing chemicals, and can efficiently separate non-arsenic-containing copper sulfide by using the combined collector of ethylthiuram and ethyl xanthate, so that good copper and arsenic separation effect is achieved.
Owner:KUNMING UNIV OF SCI & TECH

Ecological sensitive area copper ore prospecting method based on lossless geophysical exploration

The invention relates to the technical field of geological exploration, in particular to an ecological sensitive area copper ore prospecting method based on lossless geophysical exploration, which comprises the following steps of: 1, performing image acquisition on the earth surface of a target ecological sensitive area, and generating a cave entrance distribution vector diagram; 2, performing gravity detection on the target ecological sensitive area to generate a three-dimensional gravity detection image; step 3, carrying out confluence analysis on the distribution vector diagram of the cave entrance and the three-dimensional gravity detection image, identifying low-density false anomalies caused by the cave, and generating a correction scheme; and 4, performing data correction and geologic body marking on the gravity detection image in combination with the correction data and typical density characteristics of the copper ore. Aiming at the problems of gravitational exploration false negative anomalies caused by caverns of animals in ecological sensitive areas such as alpine meadow and the like and covering of real anomalies of copper ore, the problem of misjudgment of a gravitational exploration target area is solved by taking accurate recognition of the cave and targeted elimination of the false anomalies as the core, the positioning precision of the copper ore is improved, and the ecological disturbance is reduced.
Owner:GEOLOGICAL SURVEY BUREAU OF YUNNAN PROVINCE

Biofilter and method for the biological oxidation of methane using copper mining tailings

The invention relates to a biofilter and a method for the oxidation of methane generated in industrial, agricultural and sanitary landfill processes, among others, where the methane oxidation is biological, requiring methanotrophic microbial consortia, and where copper mining tailings are added to stimulate methane oxidation mediated by said methanotrophic microorganisms.
Owner:UNIV BERNARDO OHIGGINS +1

Copper tailing concentration and separation device and method thereof

The invention relates to the technical field of copper ore flotation, in particular to a copper tailing concentration and separation device and a method thereof.The copper tailing concentration and separation device comprises a shell used for providing a closed cavity needed by flotation, and the shell is vertically arranged to ensure that ore pulp and bubbles stably flow in the axial direction; the input pipeline is coaxially arranged in the shell, and a pulp outlet is formed in the input pipeline so as to convey ore pulp into the shell; the foaming spray gun is arranged at the bottom of the shell to upwards emit a bubble carrier. The fan-shaped flow guide plates of the inner guide flow guide grid can flow towards the center of the shell under the action of inclination force, and the blank that ore pulp in the center area is prone to loss is filled up; the fan-shaped flow guide plates of the outer guide flow guide grid guide ore pulp to the marginal area, the problem that the amount of the ore pulp in the marginal area is insufficient is solved, the ore pulp concentration difference between the middle portion and the edge of the shell is eliminated, the fan-shaped flow guide plates and the outer guide flow guide grid are alternately arranged in the axial direction to form an edge-center-edge wave-shaped descending path, and the contact time of the ore pulp and bubbles is prolonged.
Owner:铜陵有色金属集团股份有限公司

Supporting safety protection equipment for mining under copper mine

The utility model relates to the technical field of mine supporting, and discloses supporting safety protection equipment for mining under a copper mine, which comprises two symmetrically arranged supporting plates, a mounting plate fixedly connected to the surfaces of the supporting plates, a bolt mounted at the top of the mounting plate, an open slot formed in the top of each supporting plate, and a protective cover arranged on the top of each open slot, a cavity is formed in the supporting plate, and an adjusting mechanism is mounted in the cavity; according to the device, the well wall can be supported and protected, meanwhile, the influence of falling of stones on workers can be reduced, in addition, through cooperation of the stress mechanism and the pressing alarm, when the well wall deforms, the surrounding workers can be prompted through alarm of the pressing alarm, and the working efficiency is improved. And the problem that in the prior art, part of underground supporting devices can only carry out supporting protection and cannot prompt surrounding workers conveniently when the well wall deforms, so that timely evacuation of the workers is affected is solved.
Owner:淮北市煤炭管理监察支队

Copper mine tailing copper extraction method based on copper ammonia coordination-ultrasonic cooperation

The invention relates to the technical field of hydrometallurgy, and particularly discloses a copper mine tailing copper extraction method based on'copper ammonia coordination-ultrasonic synergy ', which specifically comprises the following steps of: grinding copper mine tailings, and performing leaching reaction on the copper mine tailings by using a leaching agent under an ultrasonic condition, carrying out solid-liquid separation by adopting a circulating vacuum pump to obtain copper-containing leachate and copper-containing leaching residues; the leaching agent is more than one of an organic ammonia solution and an inorganic ammonia solution; according to the method provided by the invention, efficient coordination complexing of copper and ammonia is promoted through inorganic ammonia / organic ammonia in the leaching agent, so that copper in the ore is successfully transferred from a solid phase to a solution phase, and finally efficient extraction and resource recycling of valuable metal copper in the copper mine tailings are realized; the method does not consume strong acid and strong alkali, the co-leached impurity ions are few, the separation and recovery efficiency is high, and the cost is low.
Owner:SHUI KOU SHAN NONFERROUS METALS LTD

Method for improving removal efficiency of COD and total oil in overflow water of copper mine tailings pond

The application discloses a method for improving the removal efficiency of COD and total oil in overflow water of a copper mine tailing pond, and comprises the following steps: S1, adjusting the pH of copper mine copper selection alkaline wastewater to 4.5-5.5 by using an acidic agent; S2, the wastewater after pH adjustment is introduced into an iron-carbon micro-electrolysis reaction tank; S4, the wastewater after high-level oxidation treatment is introduced into a neutralization reaction tank, the pH of the wastewater is adjusted to 8-9 by using an alkaline agent, and then a modified high-molecular-weight anionic flocculant solution is added after sufficient reaction. The technical scheme of the process, i.e. 'adjusting the pH of wastewater + iron-carbon micro-electrolysis oxidation-reduction reaction + sodium persulfate high-level oxidation + flocculation and precipitation', can significantly reduce the concentration of pollutants such as COD and total oil in the copper mine copper selection alkaline wastewater, solves the problem of low removal efficiency of COD and total oil in the existing copper mine copper selection wastewater, effectively reduces the risk of environmental impact of the wastewater, and provides a basis for effective utilization of the treated wastewater.
Owner:安徽铜冠产业技术研究院有限责任公司 +1

Copper mine exploration core clamping rack

The utility model relates to clamping frame technical field, and disclose a kind of copper mine exploration rock core clamping frame, including V type support head, the bottom fixed mounting of V type support head has support base, the inside fixed mounting of support base has reinforcing rod one and reinforcing rod two, the inside of V type support head is provided with anti-abrasion mechanism, the left side and the right side of support base are all provided with modular combination mechanism.The copper mine exploration rock core clamping frame, through the modular combination mechanism set, in use process, by the independent module of quick connection disassembly of clamping frame design, can be flexibly assembled according to the length of rock core in use, in the environment of frequent handling, module can be handled alone, can be easily handled, will not appear hard, low efficiency, muscle strain condition, can also save a lot of space when storage or transfer.
Owner:BEIJING INST OF GEOLOGY FOR MINERAL RESOURCES

Process for obtaining co-products from copper mining tailings

PCT designated stageWO2025199599A1FlotationMagnetiteCopper sulfide
The present invention relates to a process for obtaining co-products from the tailings generated in the flotation of copper sulphide ores, said process comprising magnetic separation as a rougher stage, ultra-fine grinding, magnetic separation as a cleaner stage and reverse cationic flotation of silicates as a recleaner stage. This process involves processing the tailings to produce a magnetic iron ore concentrate (magnetite) that meets the following specifications: >64.10% Fe, <2.50% SiO2, <2.00% Al2O3, <0.065% P and <0.25% Mn. In addition, the present invention relates to the processing of intermediate tailings generated throughout the proposed process for obtaining copper and gold concentrate and for generating additional co-products for the construction industry and for road paving, as well as for use as mineralisers or soil conditioners.
Owner:VALE SA

Environment-friendly high-performance concrete admixture and preparation method thereof

InactiveCN119591342Aavoid destructionhigh activityEpoxyStagmomantis
The invention relates to an environment-friendly high-performance concrete admixture and a preparation method thereof, and belongs to the technical field of environment-friendly high-performance concrete.The environment-friendly high-performance concrete admixture is prepared from, by weight, 3-7 parts of insect flavor agent, 4-10 parts of insect repellant, 2-6 parts of heat conduction agent and 5-7 parts of anti-cracking agent; wherein the insect flavor agent is prepared from the following raw materials in parts by weight: 1 to 3 parts of mantis powder and 3 to 8 parts of sterilized shrew urine. The insect taste agent prepared from the mantis powder and the bactericidal shrew urine and the insect repellant prepared from the melia azedarach leaf powder and the azadirachta indica leaf powder are used in cooperation to achieve a good termite repelling effect, and the heat conduction agent prepared from the copper ore powder and the epoxy resin particles has a sunlight heat conduction effect, so that the activity of the insect taste agent and the insect repellant is improved; therefore, the effect of effectively repelling the termites in the concrete pouring process and in the subsequent short time is achieved, the termites are helped to change nests, and the termites are prevented from nesting in small cracks in a building and damaging a wood structure in the subsequent building as much as possible.
Owner:GUANGXI TECHCAL COLLEGE OF MACHINERY & ELECTRICITY

Preparation method and application of low-cost self-doped sodium-ion battery positive electrode material

The application discloses a preparation method and application of a low-cost self-doped sodium-ion battery positive electrode material, and comprises the following steps: copper ore, iron ore and nickel ore are sequentially subjected to first calcination treatment, crushing treatment and magnetic separation treatment to obtain a high-magnetic-substance copper-containing mixture, an iron-containing mixture and a nickel-containing mixture; the copper-containing mixture, the iron-containing mixture and the nickel-containing mixture are weighed according to stoichiometric ratios of a manganese-containing compound and a sodium-containing compound, mixed in a solvent, uniformly mixed and dried to obtain a mixed powder; and the mixed powder is subjected to second calcination treatment to obtain the positive electrode material. The preparation method greatly reduces a raw material purification and impurity removal process, utilizes rare elements contained in minerals, prepares a self-doped layered oxide material, has simple preparation process and low cost, and the prepared positive electrode material has high capacity performance, high rate performance and cycle performance.
Owner:JIANGSU ZENIO NEW ENERGY BATTERY TECH CO LTD

A method for preparing a copper sulphide ore collector using waste engine oil and its use

This invention discloses a method for preparing a collector for copper sulfide ore using waste engine oil and its application. Using waste engine oil as raw material, the method first removes solid particles through impurity removal, then homogenizes and emulsifies the purified waste engine oil to obtain the waste engine oil collector. During the flotation of copper sulfide ore, the ore is first ground to a suitable fineness, and the pH of the slurry is adjusted. Subsequently, the waste engine oil collector and a frother are added, and roughing is performed to obtain a copper concentrate. The copper concentrate is then subjected to blank cleaning to obtain a copper concentrate. This invention for preparing a collector for copper sulfide ore using waste engine oil is simple and easy to implement, with low recycling costs. The flotation process for copper sulfide ore does not require the addition of large amounts of lime, making it environmentally friendly and practically applicable, generating significant social, economic, and environmental benefits.
Owner:CENT SOUTH UNIV

Black tang new flower double-layer glazing and controllable redox firing process

The invention provides a black Tang new flower double-layer glazing and controllable redox firing process, which comprises the following steps: respectively grinding a ground glaze material and a surface glaze material to specified fineness, sequentially applying the ground glaze material and the surface glaze material to the surface of a porcelain blank, after the glaze surface is dried, putting the blank into a kiln, firing for a certain time in a controllable redox atmosphere, and slowly cooling to obtain a final product, the ground glaze material is prepared from the following components in parts by mass: 40 to 45 parts of yellow surface stone, 10 to 15 parts of raw medicine, 10 to 13 parts of quartz sand, 10 to 15 parts of calcite, 5 to 8 parts of copper ore, 0.6 to 0.75 part of ferric oxide, 1.5 to 2 parts of talcum powder and 1 to 1.25 parts of bovine bone ash; through the technical scheme, the problems of insufficient glaze matching precision, single glazing process, uncontrollable sintering atmosphere and the like in the prior art are solved, the texture, the texture effect and the color development stability of the black Tang new flower Jun porcelain glaze surface are improved, and the high requirements of high-end ceramic artworks on the glaze color and the texture are met.
Owner:XUCHANG JINTANG JUN PORCELAIN CULTURE DEV CO LTD

A flotation method for high-silicon copper oxide ore

A flotation method for high-silicon copper oxide ore employs a closed-circuit grinding process. The ore is ground in a ball mill to a 200-mesh content of 65-70% and a grinding concentration of 78-82%. The ore is then stirred in a roughing mixing tank for 20 minutes. The stirred slurry is fed into a roughing flotation machine, where the roughing flotation concentration is controlled at 30%-35%. A single roughing flotation process produces a copper concentrate with a copper grade between 5% and 8%. The resulting copper concentrate is then fed into a concentrating flotation machine. After three rounds of concentrating, a qualified copper concentrate with a copper metal grade greater than 17% is produced, achieving a copper recovery rate greater than 70%. The flotation process is characterized by stable foam properties, enabling simultaneous flotation of copper oxide ore and some non-copper oxide minerals, significantly improving copper metal recovery.
Owner:NORTHWEST RES INST OF MINING & METALLURGY INST

A method for controlling an oxygen-enriched side-blown smelting process

The application discloses a control method of an oxygen-enriched side-blown smelting process, which is suitable for smelting processes of furnace charging materials containing pyrolysis residues and copper sulfide ores in an oxygen-enriched side-blown smelting furnace. At least two operation parameters of oxygen content in flue gas, copper matte phase grade, Fe3O4 content in slag, copper content in slag and slag fluidity are obtained in the smelting process, so as to judge the oxygen potential state in the furnace and the matte-slag separation state; when the oxygen potential in the furnace is increased and accompanied by the increase of the Fe3O4 content in the slag, the oxygen-enriched concentration and / or the side-blown oxygen supply amount are reduced; when the slag fluidity is reduced and / or the copper content in the slag is increased, the flux adding amount is adjusted. Through the linkage adjustment of the oxygen supply parameters and the flux adding amount, the accumulation of Fe3O4 is inhibited, the copper loss with the slag is reduced, and the stable smelting operation is restored.
Owner:WUZHOU SHENGFA ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD