167 results about "Copper ore" patented technology

The invention belongs to the technical field of mineral resource exploration, and provides a multi-source remote sensing data and AI combined copper ore exploration method and system, and the method comprises the following steps: obtaining multi-source remote sensing data of a target region through a plurality of remote sensing devices; preprocessing the multi-source remote sensing data to obtain fusion data; the fusion data are analyzed through an AI algorithm, and mineralization alteration areas and geological structure information are obtained through recognition; performing overlay analysis on the mineralization alteration area and the known geochemical anomaly area, analyzing the spatial relationship between the mineralization area and the structure in combination with the geological structure information, and judging the favorable mineralization part of the copper ore to obtain an analysis result; performing field investigation on the potential copper ore area determined by the analysis result, collecting rock samples for laboratory analysis, and verifying the accuracy of the analysis result; according to the method, the multi-source remote sensing data and the AI technology are comprehensively utilized, the target area is rapidly analyzed, the potential copper ore area is positioned, the workload of blind exploration is reduced, and the exploration efficiency is improved.

The invention provides a multi-source geophysical prospecting data fused Zenzenite rock mass contact zone anomaly method and system, and relates to the technical field of geophysical prospecting, the method comprises the following steps: executing joint denoising processing and time-frequency feature enhancement processing on a TFEM data set in a three-dimensional fused data volume, and outputting the optimized three-dimensional fused data volume; and based on the optimized three-dimensional fusion data body, by establishing a mapping relationship between magnetic, electric and polarization anomalies and a geologic body, quantifying the correlation between a multi-parameter combination and a mineralization index and screening an up-to-standard abnormal region, and finally delineating a magnetic anomaly gradient zone, a low-resistance region and a high-polarization anomaly co-occurrence ore prospecting target region three-dimensional distribution diagram. Through multi-source geophysical prospecting method collaboration, data deep fusion, quality optimization and accurate mapping, full-chain technology upgrading from data acquisition to target area delineation is realized, and the high efficiency of mineral exploration is improved.

The invention discloses a method for extracting copper fine powder by flotation of copper-containing ore, which belongs to the technical field of mineral processing, and comprises the following steps: after copper-containing raw ore is crushed, ground and classified by a cyclone, overflow enters flotation, and settled sand is returned for regrinding; sodium carbonate is added into graded overflow to adjust the pH, a sodium hexametaphosphate-polyacrylamide composite dispersant is added, and copper sulfate is added and stirred after low-temperature microwave heating; gradient flotation is conducted, specifically, copper sulfide is roughly selected, the pH is adjusted, an amino-sulfonic acid group synergistic modified layered double metal hydroxide / cobalt ferrite composite collecting agent is added, and rough concentrate 1 is obtained through high-frequency pulse air inflation flotation; copper oxide roughing is conducted, clear water is supplemented to adjust the pH, and a collecting agent is supplemented to obtain rough concentrate 2; scavenging is performed for three times, a collecting agent is added for flotation, and concentrate returns to the previous stage; the rough concentrates are combined, and magnetic impurities are removed through high-gradient magnetic separation to obtain magnetic concentrates; and carrying out microbiological leaching on tailings to recover copper. The composite collecting agent is prepared through layered double hydroxide carrier synthesis, amino modification, sulfonic acid group grafting and cobalt ferrite anchoring.

Methods, compositions and systems are provided that improve recovery of copper from previously leached copper ores. A reset solution comprising a chelating agent and a reducing agent is provided to a heap of previously leached and passivated ore to improve copper recovery kinetics in subsequent leaching stages.

The invention belongs to the field of flotation, and particularly relates to a composite inhibitor for copper sulphide ore, an inhibition method, a copper-molybdenum separation method and a flotation reagent thereof.The composite inhibitor for the copper sulphide ore comprises a component A, a component B, a component C and a component D according to the weight ratio of (3-7): (1-2): (1-2): (1-3); wherein the component A is a compound shown in a formula 1 (1); the component B is a compound shown in a formula 2; the component C is konjac mannan; component D is a compound represented by formula 3. The research shows that the component A and the component D are innovatively combined, and flotation of the copper sulphide ore can be accidentally inhibited with high selectivity on the basis of combination and synergy of special groups between the component A and the component D.

The invention relates to a method for regulating and deacidifying in a bioleaching process of low-grade copper sulphide ore, aiming at the problem of excessive acid caused by excessive oxidation of pyrite in a dump leaching system, a thiocyanate bactericide is added into the bioleaching system of the low-grade copper sulphide ore, and the thiocyanate bactericide is dissolved in a spray liquid of the bioleaching system, and is added into the spray liquid of the bioleaching system; under the catalytic action of mineral leaching microorganisms, oxidation of ferrous ions is enhanced, so that the oxidation-reduction potential of a solution is increased, oxidation of pyrite is intensified, acid accumulation is excessive, the thiocyanate bactericide can remarkably inhibit the activity of part of sulfur-oxidizing bacteria and even kill part of sulfur-oxidizing bacteria, and therefore the activity of ferrous oxide is reduced; compared with the prior art, the method has the advantages that the sulfur oxidation activity of microorganisms is greatly influenced, but the oxidation influence on iron is relatively small, so that the acid leaching is reduced under the condition that the copper leaching of the copper sulfide ore is not influenced, the copper leaching is not influenced, the acid leaching is reduced, the production cost is reduced, the environmental influence is reduced, and the like.

A system for dynamic oxidation of a heap of copper ore includes a “process island” for formulating and dispensing oxidizing reactive mixtures having predetermined compositions, and irrigating the heap with the mixtures to progressively transform the ore and maintain conditions for enhanced recovery of metal by heap leaching, solvent-extraction and electrowinning. In embodiments, the system is adapted to obtain copper metal from the refractory copper mineral chalcopyrite.

The present invention discloses a step-by-step enhanced recovery method for recovering multiple complex copper ores. The method includes grinding the sample to an appropriate particle size, then directly flotating copper sulfide using amyl xanthate. The tailings from the flotation of the copper sulfide are then deslimed. After desliming, the tailings are activated with sodium sulfide and free copper oxide is flotated using amyl xanthate and butyl ammonium black powder as collectors. Ethylenediamine phosphate is then used for enhanced activation, followed by the addition of sodium sulfide and amyl xanthate and butyl ammonium black powder as collectors to flotate bound copper oxide. Finally, high-gradient strong magnetic separation is used to recover weakly magnetically bound copper oxide that is difficult to float and contains adsorbed or fine particles of iron, manganese, cobalt, and other minerals. The method achieves a total copper recovery rate exceeding 85%, which is more than ten percentage points higher than the global average recovery rate for copper oxide ores. This method effectively addresses the current technical problem of low recovery rates for copper oxide ores using a single process.

The application discloses a layered silicate gangue inhibitor for fine-grained copper ore flotation and a preparation method thereof. The inhibitor is composed of the following components: modified polysaccharide organic polymer 15-30%, sodium hexametaphosphate 10-30%, acrylic acid 7-15%, acrylamide 1-5%, ammonium persulfate 2-5%, hydroxyethylidene diphosphonic acid 5-15%, aluminum sulfate 2-5%, and deionized water in a residual amount. The preparation method comprises the following steps: mixing modified polysaccharide and deionized water according to a mass ratio of 1:1-1:2 to prepare solution A; polymerizing acrylic acid and acrylamide to prepare solution B; mixing solution A and solution B, and adding a formula amount of sodium hexametaphosphate to react; then adding a formula amount of hydroxyethylidene diphosphonic acid and a formula amount of aluminum sulfate to carry out complex adjustment; and finally, aging, filtering and obtaining the product. The inhibitor has a strong selective inhibiting effect on talc, phlogopite and other layered silicate gangues, can significantly improve the copper concentrate grade and recovery rate, has a small dosage, is non-toxic and environment-friendly, and can be biodegraded.

The application discloses a beneficiation method for flotation of copper nickel sulfide ore at different pH values, and relates to the technical field of metal beneficiation, and comprises steps of section grinding and flotation, etc. Different pH values are adopted for stage flotation of the nickel copper sulfide ore, weak alkaline flotation is adopted for the first stage flotation, and easy-floating nickel copper minerals are recovered; the Isa mill is adopted for fine grinding in the second stage, so that fine-grained useful minerals are dissociated, high-concentration weak acid flotation is adopted for the flotation, and difficult-to-select nickel copper minerals are recovered, and the acid-resistant collecting agent and the foaming agent are added, so that the copper nickel recovery rate index is effectively improved.

The invention discloses a copper-molybdenum bulk concentrate flotation separation combined inhibitor and application thereof, and belongs to the technical field of mineral flotation separation. The combined inhibitor is formed by mixing isomaltose and sodium hexametaphosphate. The method for using the combined inhibitor for flotation separation of the copper-molybdenum bulk concentrate specifically comprises the steps that the copper-molybdenum bulk concentrate is subjected to scrubbing, reagent removal and pulping; a combined inhibitor, a collecting agent and a foaming agent are sequentially added into the ore pulp, primary roughing is conducted, and roughing concentrate and roughing tailings are obtained; the roughing concentrate is subjected to three times of concentration, a combined inhibitor is supplemented in each time of concentration, and copper concentrate is obtained; and the roughing tailings are subjected to two times of scavenging, the collecting agent is supplemented in each time of scavenging, and molybdenum concentrate is obtained. According to the method, the floatability difference of the copper ore and the molybdenum ore is enlarged by inhibiting molybdenum and floating copper, the use of high-toxicity agents can be reduced, meanwhile, copper can be efficiently recycled, the grade of molybdenum concentrate can be guaranteed, and good environmental compatibility and industrial application prospects are achieved.

The present application relates to the technical field of mineral flotation reagent, in particular to a chalcopyrite flotation composite collector and application thereof; the chalcopyrite flotation composite collector is prepared by mixing a first collector and a second collector at a mass ratio of 5-7:1.0-1.5; the prepared first collector is applied to the field of chalcopyrite flotation, and has good flotation performance and higher selectivity, and significantly improves the recovery rate of chalcopyrite flotation; the obtained second collector contains multiple sulfur-containing and oxygen-containing functional groups in the molecule, has good collecting ability and selectivity for chalcopyrite, and can significantly improve the flotation recovery rate of chalcopyrite; in addition, the mutual cooperation between the first collector and the second collector can further improve the recovery rate and grade of chalcopyrite; under the condition of adding a small amount of lime, a copper concentrate with high copper grade is obtained, the pH value of tailing backwater is also greatly reduced, the alkalinity standard requirement of direct discharge of backwater is met, and the sustainable development of the environment is beneficial.

The application discloses a composite foaming agent for copper sulfide ore flotation and a preparation method thereof. The composite foaming agent is composed of the following components in mass fractions: high-carbon-chain polyhydric alcohol 20-35 parts, polyoxyethylene ether 15-25 parts, ester 105 10-20 parts, and isopropyl alcohol or sec-butyl alcohol 15-35 parts. The preparation method comprises the following steps: adding the high-carbon-chain polyhydric alcohol and the polyoxyethylene ether into a reaction kettle, stirring and mixing at 60-70 DEG C; slowly adding the ester 105, continuously stirring for 30-60 minutes, and keeping the reaction temperature at 70 DEG C; after cooling to room temperature, adding the isopropyl alcohol or sec-butyl alcohol, uniformly stirring, and filtering to obtain the composite foaming agent. The composite foaming agent has strong dispersibility, low viscosity, controllable foam performance, can act on gangue minerals such as talc and phlogopite, form a flexible adsorption layer, and improve the hydration of the gangue surface. The foaming agent realizes high-selectivity flotation effect, significantly improves the grade and recovery rate of copper concentrate, and has a significant effect on difficult-to-select fine-grained copper ore.

The invention discloses a method for comprehensively utilizing open-air copper-gold mine resources, which comprises the following steps of: crushing copper sulfide ore, grinding the crushed copper sulfide ore to a certain fineness, and respectively obtaining copper sulfide concentrate and pyrite concentrate by adopting a flotation process of copper-sulfur bulk flotation and reseparation; the method comprises the following steps: firstly, carrying out bacterial oxidation and leaching on the pyrite, and carrying out solid-liquid separation to respectively obtain the pyrite and a gold-containing leachate; and preparing sulfuric acid from the pyrite by adopting an oxidation method, and leaching the copper oxide ore in the waste rock heap by using the sulfuric acid so as to recover copper. The flotation, bacterial oxidation leaching and sulfuric acid leaching processes are adopted, waste is turned into wealth, and the recovery rate of copper and gold is comprehensively increased. The technology is green and environmentally friendly, the process is stable, and comprehensive utilization of copper and gold mine resources is achieved. According to the method, copper sulfide and pyrite are recycled from the flotation process of copper sulfide ore, gold is recycled from pyrite, sulfuric acid is prepared, copper oxide in a waste rock pile is leached through the prepared sulfuric acid so as to recycle copper, and the metal recovery rate of copper and gold is increased through resource cyclic utilization.

The application discloses a kind of sulphur oxygen mixed type copper ore grading magnetic-flotation combined beneficiation method, including grinding screening, magnetic separation, grading, copper sulphide flotation, copper oxide roughing, copper oxide strengthening scavenging.The application is by using strong magnetic separation recovery part coarse grain copper oxide in mill grading system, reduce the overgrinding of copper oxide mineral in the process of grinding, realize the ability to collect early collection, improve copper oxide comprehensive recovery rate, while reducing the release of copper ions in the process of grinding, reduce the adverse effect on subsequent copper sulphide flotation.By using sodium sulphide and sodium pyrosulphite to form efficient copper oxide sulphidizing agent, the stability of the film in the sulphidation process is strengthened, and the inhibition of pyrite is also strengthened, improving the separation efficiency of copper oxide flotation.In addition, by using efficient reagents and precise control, the copper oxide concentrate is directly obtained by opening the circuit of copper oxide roughing and strengthening scavenging concentrate, reducing the copper metal loss caused by closed loop circulation.

The application provides a high-efficiency foaming agent suitable for argillaceous porphyry copper ore in high-cold regions and a preparation method and application thereof. The high-efficiency foaming agent suitable for argillaceous porphyry copper ore in high-cold regions is composed of mixed alcohols, pine oil, sulfur-nitrogen esters, diesel oil, xanthate and a surfactant. The high-efficiency foaming agent suitable for argillaceous porphyry copper ore in high-cold regions is simple in preparation method, does not produce intermediate products, has low irritation, is friendly to the environment, has low dosage of the medicament compared with traditional single foaming agent, has stable foam properties, and can also assist in collecting some chalcopyrite, molybdenite and other sulfide ores. Within the range of the component allocation, the foaming agent can fully exert the synergistic effect of each component. In a high-altitude environment (altitude >= 3500m), the foaming capacity and foaming rate of the foaming agent are obviously superior to those of traditional foaming agents.

The application discloses a copper sulfide ore inhibitor and an application method thereof, and belongs to the technical field of mineral processing. The copper sulfide ore inhibitor is prepared by the following steps: taking gum tragacanth and hydrogen peroxide by mass percentage, stirring and dissolving, and treating by ultrasonic waves at room temperature for a certain time to obtain the copper sulfide ore inhibitor. The inhibitor is high in selectivity, low in dosage, environment-friendly, non-toxic, easy to degrade, and wide in source, and has good copper-inhibiting and molybdenum-floating effects.

The invention relates to the technical field of beneficiation collecting agents, and discloses a flotation collecting agent for refractory copper oxide ore and a preparation method of the flotation collecting agent. The flotation collecting agent comprises, by mass, 59.3% of a chelating main agent, 19.76% of dimethyl phthalate, 15.81% of a pH response type segmented copolymer, 3.95% of 0 # light diesel oil, 0.24% of a quantum dot additive, 0.4% of shell source polypeptide, 0.08% of a magnetic recycling agent, 1.19% of an emulsion stabilizer, 0.04% of a calcium ion activating agent, 0.4% of tetrabutylammonium bromide and 23.73% of deionized water. Wherein the total mass percentage of other components except the deionized water is 100%, and the deionized water is independently added into the solid formula as a solvent to form the flotation collecting agent for the refractory copper oxide ore. According to the flotation collecting agent for the refractory copper oxide ore and the preparation method of the flotation collecting agent, through the design of multi-active-group collaboration, an intelligent carrier and the like, the flotation efficiency and selectivity of the refractory copper oxide ore are improved, prevulcanization is not needed, agent recovery and environmental protection are achieved, and a new scheme is provided for complex ore development.

This invention discloses a process for recovering low-grade copper from semi-autogenous grinding aggregates in copper ore beneficiation plants. The process employs a combined flow of high-pressure roller mill crushing, coarse-grained heavy media separation, and fine-grained Nelson centrifugal separator. After high-pressure roller mill crushing of the semi-autogenous grinding aggregates, the coarse-grained material is fed into a heavy media separator, while the fine-grained material is fed into a Nelson centrifugal separator. The heavy media concentrate and the Nelson centrifugal separator concentrate are combined to form a copper concentrate, and the tailings from both are combined to form the final tailings. This invention utilizes physical beneficiation methods to enrich copper ore, which is more environmentally friendly and reduces pollution compared to conventional flotation methods. Furthermore, the process is simple and easy to operate, leading to lower costs and providing a new and reliable way to economically recover copper minerals from semi-autogenous grinding aggregates.

The invention belongs to the technical field of flotation reagents, and discloses a use method for activating minerals by utilizing ion waste liquid generated by preparing alkyl thiophosphate. The method comprises the following steps: removing or reducing impurities in the waste liquid to obtain purified waste liquid which can be used as an activating agent; and then, in the flotation operation, ore to be treated is crushed, ground and pulped, an inhibitor, the activating agent, a collecting agent and a foaming agent are sequentially added, and target concentrate is obtained after stirring, air inflation and flotation. The activation potential of the alkyl thiophosphate waste liquid on minerals is found for the first time, industrial wastewater is converted into the efficient flotation activating agent, and a traditional activating agent can be replaced and strengthened. According to the method, the pollution problem of the alkyl thiophosphate waste liquid is solved, the flotation reagent cost is reduced, meanwhile, the concentrate grade and the recovery rate of valuable minerals such as zinc ore, gold ore, copper ore and pyrite can be improved, the requirement for green mine construction is met, and a new path is provided for efficient separation of low-grade ore.

This invention discloses a method for the tiered extraction of copper anode slime from co-smelting copper anodes, belonging to the fields of resource comprehensive utilization and non-ferrous metal metallurgy. The method is used to treat copper anode slime produced after co-smelting waste circuit board pyrolysis residue and copper sulfide ore, followed by blowing and electrolytic refining. The method includes: sulfidation leaching of the copper anode slime to preferentially allow tellurium to enter the leachate; reduction precipitation of the tellurium-containing leachate to recover tellurium products; atmospheric pressure mixed acid leaching of the sulfidation leaching residue to preferentially allow copper and selenium to enter the leachate, yielding a copper-selenium-containing leachate and a precious metal-enriched slag; chlorination leaching of the precious metal-enriched slag to allow gold to enter the chlorinated leachate and separate from silver; and SO2 reduction precipitation and extraction separation of the copper-selenium-containing leachate to sequentially recover selenium and copper. This method can achieve tiered separation and efficient recovery of Te, Se, Au, Ag, and Cu from novel copper anode slime produced by co-smelting, and has the advantages of a clear process, good selectivity, and suitability for closed-loop operation.

This invention relates to the field of solid waste identification technology, specifically a method and system for identifying copper ore mixed with used electrical wires based on XRF and infrared detection. The invention first performs X-ray diffraction detection on imported copper ore. After detecting elemental copper, it then performs ultra-depth-of-field microscopy detection. After confirming the presence of elemental copper again through ultra-depth-of-field microscopy, it performs micro-infrared detection to detect the presence of plastic components. That is, the order of each detection method is set according to its characteristics, thus improving the efficiency of identifying used electrical wires in imported copper ore.

The invention discloses a beneficiation-metallurgy combined process method for treating low-grade high-oxidation-rate copper ore. The beneficiation-metallurgy combined process method comprises the steps that the crushed low-grade high-oxidation-rate copper ore is divided into a part A, a part B and a part C according to the particle size; the part A is subjected to color sorting, and color-sorted concentrate is obtained; carrying out ore grinding and copper sulphide flotation on the color separation concentrate to obtain copper sulphide concentrate and sulfur separation tailings; and the copper sulfide concentrate, the sulfur separation tailings and the part C of ore are further treated to obtain copper-rich leachate. According to the method, coarse particles are partially and coarsely enriched through the color selector, the selection grade of the low-grade copper oxide ore is improved, a large amount of ore grinding loss is omitted, the situation that due to the low grade of raw ore, produced metal is less is avoided, and meanwhile the ore grinding and beneficiation cost is reduced; the beneficiation and smelting process can be flexibly selected according to the selectability of copper oxide in the ore and the content of acid-consuming gangue, acid consumption is reduced, and beneficiation and smelting economic benefits are improved.

The invention discloses a segmented intensified leaching arsenic removal method for high-arsenic copper ore, and belongs to the technical field of mineral processing engineering. The method comprises the following steps: mixing crushed high-arsenic copper ore with additives, namely limestone and sodium hydroxide, and carrying out activation pretreatment through microwave cracking and quenching; a mixed solution of sodium sulfide and sodium hydroxide is adopted as a leaching agent for the pretreated mineral aggregate, and a first-stage ore grinding-leaching process, a second-stage ore grinding process, a synergistic enhanced oxidation process and a second-stage ore grinding-leaching process are sequentially carried out; and the first-stage leachate is returned to the first-stage ore grinding, the second-stage leachate is returned to the second-stage ore grinding, and finally the arsenic-removed high-copper slag is obtained. According to the method, the arsenic mineral structure is effectively destroyed through microwave pretreatment, efficient and selective removal of arsenic and cyclic utilization of the leaching agent are achieved in combination with the segmented enhanced leaching process, and the method has the advantages of being short in process, small in pollution and high in recovery rate.

The present application belongs to the field of mineral resource processing, and particularly relates to a method for selectively decarburizing high-carbon copper sulfide ore and flotation, wherein the step of decarburization is: controlling the potential of the ore pulp containing high-carbon copper sulfide ore to be -90~‑110 mV, and then performing decarburization flotation to obtain decarburized copper sulfide ore. The present application innovatively uses the potential control method for the selective separation of carbon and copper sulfide, and cooperates with the control of the potential, so as to adapt to the mineral characteristics of high-carbon copper sulfide ore, and realize the selective separation of carbon and copper sulfide.

The application discloses a method for chalcopyrite and enargite flotation separation and enrichment, and belongs to the technical field of ore dressing. The method realizes selective flotation separation of chalcopyrite and enargite through the combined action of hydrogen peroxide oxidation modification-sodium sulfite desorption collector, and obtains high-arsenic copper concentrate. Then, the method realizes effective enrichment of chalcopyrite through the desorption activation-high-efficiency collector strong collection technology, and obtains low-arsenic copper concentrate. The method is simple, easy for industrial production, and has good copper and arsenic separation and enrichment effects. The copper grade of the low-arsenic copper concentrate is greater than 23%, the arsenic content is less than 0.5%, the arsenic content of the high-arsenic copper concentrate is greater than 8%, and the total copper recovery rate is greater than 90%.

The application discloses an integrated production process from copper ore to electrolytic copper foil, which uses copper ore as a direct raw material, and realizes continuous manufacturing of copper ore to high-end electrolytic copper foil through crushing, coupling leaching of electrolysis backflow and crystallization mother liquor, iron powder replacement and impurity removal, solvent extraction enrichment, cooling crystallization, multi-stage electrolyte purification, electrolytic foil production and full-liquid flow closed loop circulation. The application omits high-energy-consumption intermediate links in the traditional process, such as cathode copper preparation, casting, upward continuous casting and copper wire copper dissolving, 100% of the crystallization mother liquor is returned to the leaching process, and the electrolytic foil backflow is purified and then circulated, the copper element recovery rate is greater than or equal to 99%, the electrolyte recycling rate is greater than or equal to 98%, the comprehensive production cost is reduced by more than 25%, and no production wastewater is discharged. The process can stably prepare 6-18 mu lithium battery copper foil and high-frequency high-speed copper foil, has the comprehensive advantages of high efficiency, low consumption, greenness, stability and high-end, and is suitable for large-scale industrial production.

The invention relates to a step flotation desiliconization and decalcification method for silicon-calcium copper oxide ore, and belongs to the technical field of mineral processing. Aiming at the problems that the silicon-calcium copper oxide ore is low in copper grade, multiple in gangue variety and high in silicon-calcium mineral content, and an existing inhibitor is large in dosage, poor in selectivity, poor in inhibition effect and the like, the method comprises the steps that a targeted inhibitor A is used for preferentially and selectively inhibiting siliceous gangue in ore, and a copper ore pre-enriched product containing the calcium gangue is obtained; and then a targeted inhibitor B is added to deeply and accurately inhibit calcium gangue in the pre-enriched product, and high-grade copper concentrate is obtained. According to the method, most siliceous gangue and part of calcareous gangue in the ore can be removed through desilicication operation, and the ore handling capacity of the follow-up process is greatly reduced; and enrichment is conducted again through decalcification operation, and accurate separation of copper minerals and calcium gangue can be achieved. Based on step-by-step targeted inhibition of different types of gangue, the impurity content of the copper concentrate can be remarkably reduced, and the technical problem that synchronous and efficient inhibition of the silicon-calcium gangue is difficult is solved.

The present invention relates to the field of mineral processing technology, and more specifically to a flotation method for arsenic-containing copper sulfide ore, comprising: first, coarsely grinding the raw ore, and adopting a process of "one roughing, two scavenging, and two concentrating" to suppress sulfur-copper-arsenic mixed selection at low alkalinity to obtain a copper-arsenic mixed concentrate and tailings; then, concentrating and re-grinding the copper-arsenic mixed concentrate to remove the drug, and adopting a "one roughing, two scavenging, and two concentrating" process to enhance copper-arsenic separation through slurry adjustment, coupled regulation of a combined inhibitor, and collection with a collector, thereby achieving efficient sorting of arsenic-containing copper sulfide ore. The present invention uses a combined inhibitor to effectively regulate the surface of the arsenic-containing mineral. The combined inhibitor achieves selective inhibition of arsenic-containing sulfide minerals such as arsenic-containing copper sulfide ore, tetrahedrite, and arsenopyrite through the technology of "oxidative modification-metal ion modification-organic compound coupling modification."

The invention discloses a metal organic framework (MOFs)-based glaze, a ceramic product and a preparation method of the ceramic product, and belongs to the technical field of ceramic materials. The provided metal organic framework-based glaze comprises a metal organic framework material and a basic glaze, and the basic glaze comprises the following components: white feldspar, quartz, calcite, wollastonite, copper ore, talc, bovine bone and tin oxide. According to the metal organic framework-based glaze disclosed by the invention, the MOFs are used as a core function regulation and control unit and matched with the white feldspar, the quartz, the calcite, the wollastonite, the copper ore, the tin oxide, the talc and the bovine bone to form a mineral composite system with a specific weight percentage; an integrated technical system of function regulation and control, structure forming and performance optimization is constructed through a stepped preparation process of precise raw material proportioning, high-energy ball milling pulping, multi-dimensional uniform glazing and controlled atmosphere glaze firing; the problems that a current ceramic glaze system is single in component regulation dimension, uncontrollable in transmutation effect, weak in glaze blank interface bonding and the like can be solved.