248 results about "Mineral flotation" patented technology

The invention belongs to the technical field of oil-gas-water separation equipment, and discloses an ultrasonic detonation rotational flow microbubble flotation device which comprises a vertical container tank with inner and outer stepped double-barrel design and a separation inner barrel, an oil gathering umbrella is arranged on the upper portion of the interior, an oil discharge connector is arranged on the outer wall of one side, and surrounding physical demulsification coalescence filler is arranged on the upper portion of the area between the tank and the inner barrel. And the lower part of the separation inner cylinder is provided with a reverse symmetrical double-tangential rotational flow inlet, the bottom of the separation inner cylinder is externally provided with a purified backflow water inlet and is communicated with the purified water diversion outlet in a process manner, and the bottom of the separation inner cylinder is internally provided with a gas-water mixer and an ultrasonic knocker. By combining ultrasonic cavitation, rotational flow centrifugation, micro-nano bubbles and physical coalescence demulsification technologies, the diameter of the bubbles is reduced by 15 microns or below through the ultrasonic detonation cavitation effect, fine oil drops and suspended particles which are difficult to treat through traditional flotation and are 10 microns or below can be captured, the method is suitable for multi-phase separation of discrete high-concentration fine pollutants, and the flotation efficiency is improved. Complex separation scenes such as oily sewage, micro-plastics and mineral flotation can be treated.

The invention discloses a flotation froth image feature extraction method based on adaptive multi-scale weighted fusion, and belongs to the technical field of intelligent monitoring and image processing in the mineral flotation process, and the method comprises the steps: fusing a color histogram, texture and edge features, and depth features extracted by VGGNet, GoogLeNet and ResNet; and mapping and fusion of multi-modal features are realized by using a self-adaptive multi-scale weighted feature fusion network. And dynamic weighting and fusion are carried out on different characteristic modes through a nonlinear neural network model, and unified characteristic representation is generated to be used for accurate representation of the flotation froth state. The method has the advantages of high recognition precision, high robustness and flexible deployment, online monitoring, optimal control and index prediction of the flotation process can be effectively supported, and reliable technical support is provided for an industrial field.

The invention relates to the technical field of mineralogy, and provides a prediction method for mineral flotation yield. According to the method, the content and dissociation degree of the target minerals under different size fractions are accurately obtained through the technologies of ore grinding, system screening and automatic mineralogy analysis, the yield prediction method based on the mineral selectability physical model is established, the crossing from elements to minerals and from the whole to the size fractions can be achieved, and the yield prediction accuracy is improved. And a brand-new, scientific and reliable technical reference is provided for precise prediction and process optimization of the sulfide ore flotation yield.

The invention provides a collecting agent for micro-fine particle quartz ore and a preparation method and application of the collecting agent, and relates to the technical field of mineral flotation. Specifically, the preparation method of the collecting agent comprises the steps that a mixture containing the graphene and the sodium oleate is subjected to cold plasma treatment, and the graphene and the sodium oleate are grafted to obtain the collecting agent. The collecting agent can be used for mineral flotation, and high-purity quartz can be efficiently obtained; on the basis of the net capturing performance of graphene and functional groups corresponding to grafted sodium oleate, the flocculation effect on micro-fine quartz is achieved, so that the quartz is efficiently captured, the problem that the fine quartz is free in ore pulp due to large free energy in the flotation process and is difficult to capture and float is solved, the flotation separation efficiency is improved, the separation index is improved, and the flotation cost is reduced. Good application prospects are realized.

The invention belongs to the technical field of mineral flotation, and particularly relates to a nanocellulose-based coal slime collecting agent and a preparation method and application thereof. Wet-grinding the dried absorbent cotton, drying again, acidizing, filtering, washing and centrifugally drying to obtain precursor cellulose; dissolving the precursor cellulose in deionized water, adjusting the pH value to 10, adding an ethanol solution of alkyltriethoxysilane, heating, stirring for reaction, naturally cooling, centrifuging, washing and drying to obtain hydrophobic nano cellulose; and the hydrophobic nanocellulose and the non-polar hydrocarbon oil are evenly mixed, and the coal slime collecting agent is obtained. The prepared coal slime collecting agent contains the hydrophobic nanocellulose which is high in softness and has a net-shaped structure, in the flotation process, adhesion of bubbles and minerals can be promoted, diffusion of the bubbles is promoted, and the flotation efficiency and the recovery rate are improved.

The invention belongs to the technical field of mineral flotation separation, and particularly relates to a complexing inhibitor and application thereof in mineral flotation separation of smithsonite and calcium-containing gangue. The complexing inhibitor provided by the invention is prepared by complexing a flavonoid organic compound and aluminum ions, is used for flotation separation of smithsonite and calcium-containing gangue minerals, can be selectively adsorbed on the surface of the calcium-containing gangue, effectively inhibits the floatability of the calcium-containing gangue, and has the advantages that compared with a traditional agent, the complexing inhibitor is simple in preparation method and low in cost; the method has the advantages of being high in separation efficiency, small in reagent dosage, environmentally friendly and the like, the grade and the recovery rate of smithsonite can be remarkably improved, and the method has important significance on efficient recycling of zinc oxide resources.

The invention belongs to the field of mineral flotation, and particularly relates to a method for enriching rubidium and / or cesium in minerals through flotation, which comprises the following steps: mixing to-be-selected minerals containing at least one target element in rubidium and / or cesium with a flotation reagent containing a collecting agent shown in formula 1 for flotation, and collecting to obtain flotation concentrate enriched with the target element; r is alkyl of C10-C18, and M is H, Na, K or ammonium ions. Researches show that the formula 1 is innovatively adopted as the collecting agent, and the collecting agent can be based on intramolecular-COO and R-N-at the alpha position of the intramolecular-COO, so that the collecting characteristics of the rubidium and / or cesium minerals can be synergistically and adaptively achieved, and the excellent collecting and enriching effect of the rubidium and / or cesium minerals can be obtained.

The invention belongs to the technical field of mineral flotation, and particularly discloses a xanthate collecting agent and a preparation method and application thereof, and the xanthate collecting agent is obtained by taking ether alcohol, carbon disulfide and caustic alkali as raw materials to react; the xanthate collecting agent is selected from at least one of formulas I-VI. The xanthate collecting agent has the advantages of being free of peculiar smell, easy to degrade, high in yield, high in purity, efficient in mineral flotation and the like, the working environment of the xanthate collecting agent in the production and using process can be effectively improved, operation is easy and convenient, cost is low, and industrial production is easy to achieve.

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.

The invention belongs to the technical field of mineral flotation, and particularly relates to a cellulose-based coal slime collecting agent and a preparation method and application thereof. The method comprises the following steps: performing wet grinding on recycled waste paper to obtain a paper pulp solution, stirring until paper pulp fibers are uniformly dispersed, adding excessive lithium chloride and sodium periodate, performing stirring reaction, cleaning and centrifuging to obtain precursor cellulose, performing amino alkylation modification to obtain amino alkyl cellulose, preparing the amino alkyl cellulose into a 20 g / L solution, and performing vacuum drying to obtain the lithium ion battery cathode material. And then uniformly mixing with non-polar hydrocarbon oil according to the volume ratio of 1: 2 to obtain the coal slime collecting agent. The prepared coal slime collecting agent contains the hydrophobic nanocellulose with the large length-diameter ratio, in the flotation process, adhesion of bubbles and minerals can be promoted, diffusion of the bubbles is promoted, and the flotation efficiency and the recovery rate are improved.

The invention belongs to the technical field of mineral flotation, and discloses multi-stage regulation mineral flotation separation equipment which comprises a flotation separation equipment body, and further comprises a pre-filtering device, a separation device and a control device, and the pre-filtering device is arranged at the top of one end of an inner cavity of the flotation separation equipment body; the water inlet pipe is fixedly mounted on one side of the top of the flotation separation equipment body; according to the technical scheme, through the arrangement of the dispersing device and the shaking device, when the dispersing device runs, the top of one end of the dispersing device can be rotated, so that minerals and sewage which are guided into the bottom of the water inlet pipe can be driven to flow integrally, and large mineral impurities can be rotated by the dispersing device to uniformly fall on the top of a filter screen plate; meanwhile, the shaking device can be synchronously driven to drive the whole filter screen plate to shake up and down, so that the uniform dispersion efficiency is greatly improved, large mineral particles can be finally prevented from being accumulated to block the filter screen plate, and the filtering fluency and efficiency of the filter screen plate are greatly improved.

The invention discloses a low-temperature-resistant spodumene flotation collector as well as a preparation method and application thereof, and relates to the technical field of mineral flotation. The flotation collecting agent is prepared from the following raw materials in percentage by mass: 60%-80% of an anionic fatty acid collecting agent, 5%-20% of a sulfonate auxiliary collecting agent, 5%-15% of a hydroximic acid auxiliary collecting agent and 3%-15% of a nonionic surfactant. The flotation collecting agent still has excellent collecting performance and selectivity under the low-temperature condition of 6 DEG C, the problem that the low-temperature activity of a conventional flotation collecting agent is suddenly reduced is effectively solved, pre-desliming or calcium chloride activation is not needed when the flotation collecting agent is used, the process is simple, the cost is low, and the flotation collecting agent is suitable for industrial flotation of spodumene ore.

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

The present invention relates to a high-efficiency flotation separation method for complex copper-iron sulfide ore, and belongs to the technical field of flotation reagents. A combined collector is prepared, wherein the components of the combined collector are composed of 75-80 parts of aminotrimethylenephosphonic acid, 10-15 parts of xanthate, 5-10 parts of ethylthiocarbamate, and 0.5-1 part of polyol fatty acid ester, and the mass concentration of the combined collector is 30-50%; pulping, adding 200-800g / t of sulfiding agent to the complex copper-iron sulfide ore, grinding the ore to a fineness of -0.074mm accounting for 65-90%, and then pulping to a slurry with a solid concentration of 25-40wt%; flotation, subjecting the slurry with a solid concentration of 25-40wt% to a flotation operation of one coarse, three-four fine, and two-three sweeps to obtain copper concentrate and sulfur tailings, wherein the combined collector is used in the flotation process of the one coarse, three-four fine, and two-three sweeps. The present invention develops a new type of combined collector as a flotation agent for efficiently separating chalcopyrite and pyrite minerals, thereby achieving excellent flotation separation effect of complex copper-iron sulfide minerals in a slurry under low-alkali conditions.

The invention provides a high-throughput screening method for an AI energized beneficiation flotation reagent, and belongs to the technical field of mineral flotation reagent screening. According to the method, high-throughput screening of multiple candidate mineral flotation reagents is achieved through the flotation performance prediction model constructed through the artificial intelligence model, the research and development cycle and test cost of the mineral flotation reagents can be reduced, and the screening efficiency of the mineral flotation reagents can be improved.

This invention belongs to the field of mineral flotation technology, and discloses a flotation collector for non-ferrous metal sulfide ores, its preparation method, and its application. The collector uses O,O-dialkyldithiophosphate as a starting material, and reacts sequentially with a halocarboxylic acid ester, hydrazine hydrate, potassium hydroxide, and carbon disulfide in anhydrous ethanol in a three-step reaction to obtain the target product, O,O-dialkyldithiophosphate hydrazide-N′-dithiocarbamate potassium. Its molecular structure simultaneously contains three active groups: a dithiophosphate group, an hydrazide group, and a dithiocarbamate group. This invention achieves efficient process connection and smooth transition by optimizing the material ratio, temperature, and time of each reaction step, and has advantages such as mild reaction conditions, simple operation, few side reactions, high yield, and stable product. The prepared collector exhibits excellent collecting performance and good selectivity for non-ferrous metal sulfide ores such as chalcopyrite, and is suitable for widespread application in sulfide ore flotation processes.

The present application belongs to the field of mineral flotation, and particularly relates to a method for enriching rubidium and / or cesium in a mineral by flotation, wherein a target mineral containing at least one target element of rubidium and / or cesium is mixed with a flotation reagent containing a collector of formula 1 to perform flotation, and a flotation concentrate enriched with the target element is collected. 10 ~C 18 The alkyl group, M is H, Na, K or ammonium ion. The present application shows that the collector of formula 1 is used innovatively, which can realize synergy based on the combination of intramolecular-COO and R-N- in the alpha position, so as to adapt to the collection characteristics of rubidium and / or cesium minerals, and excellent collection and enrichment effect of rubidium and / or cesium minerals can be obtained.

The invention belongs to the technical field of mineral flotation, and particularly relates to a collecting agent for niobium mineral flotation and a preparation method and application of the collecting agent. Hydroximic acid groups of the hydroximic acid medicament are chelated with Nb < 5 + > on the surface of the niobium mineral to form a stable chelate; and through the synergistic effect of the dihydroxamic acid groups on the surface of the niobium mineral, the adsorption effect is enhanced. Moreover, the hydroximic acid medicament and the nonionic surfactant form stable micelles on the surface of the mineral, so that the hydrophobicity of the surface of the mineral is improved, and the enhanced recovery and efficient enrichment of the niobium mineral are realized. The prepared collecting agent is easy to dissolve in water, has good selectivity, high collecting capacity and wide adaptability to Bayan obo niobium minerals during flotation operation, can meet the requirements of various flotation processes, and can effectively collect niobium minerals under the condition that other gangue ores are not collected.

The invention relates to the technical field of mineral flotation dosing devices, in particular to an ultrasonic multi-stage rapid mixing, stirring and dosing device. Through the combination of the stirring impeller and the ultrasonic emulsification device, a medicament can be effectively stirred and ultrasonically emulsified, so that the medicament is mixed more uniformly and dispersed more meticulously, and the activity of the medicament is improved; and the spiral flow deflector on the inner wall of the atomization channel can enable the medicament to rotate in the flowing process, so that the mixing effect and the atomization degree of the medicament are further enhanced, the dosing efficiency and accuracy are improved, the dosing quality is ensured, and the use requirements of different working conditions are met.

The invention relates to the field of mineral flotation, in particular to a dihydroxythioisoflavone copper-arsenic separation inhibitor and a preparation method and application thereof. The preparation method of the copper-arsenic separation inhibitor comprises the following steps: adding an 8-beta-D-glucopyranosyl-4 ', 7-dihydroxyisoflavone organic compound into a solvent, then adding a Lawson reagent, raising the temperature, and reacting to obtain a reaction solution; and cooling, filtering, purifying and crystallizing the reaction liquid to obtain the dihydroxythioisoflavone copper-arsenic separation inhibitor. The dihydroxy thioisoflavone copper-arsenic separation inhibitor prepared by the invention can selectively carry out oxidation inhibition on arsenic-containing minerals such as arsenopyrite, arsenhedrite and akaidite, reduces the content of arsenic in copper concentrate, is simple to apply on site, does not need to change the process flow on site, only needs to adjust the dosage of the medicament and add the medicament according to the amount, is simple to operate, and is suitable for industrial production. The index is stable.

A method for treating process water of a flotation arrangement, the flotation arrangement including a flotation arrangement including a mineral flotation line and a process water treatment arrangement for treating underflow of the of the mineral flotation line. The method includes the steps of a) dewatering underflow from the flotation in a gravitational solid-liquid separator; b) subjecting supernatant from step a) to cleaning flotation for collecting at least fine particles and residual flotation chemicals, for separating at least fine particles and residual flotation chemicals from the supernatant into cleaning flotation overflow, and for forming purified process water as cleaning flotation underflow; c) removing cleaning flotation overflow as tailings, and d) recirculating purified process water into the mineral flotation line.

The invention belongs to the technical field of mineral flotation, and particularly relates to a low-alkali low-calcium comprehensive utilization method for high-clay copper-molybdenum sulfide ores, which comprises the following steps: replacing lime with part of sodium hydroxide, reducing calcium ions in ore pulp from the source, complexing calcium ions in alkaline ore pulp by using a novel high-entropy dispersing agent and a combined dispersing agent in a low-alkali ore pulp environment, and reducing the content of calcium ions in the alkaline ore pulp. The problem of copper-molybdenum metal loss caused by the fact that ore pulp floccules wrap monomer copper-molybdenum minerals under the high-alkali condition is solved, efficient enrichment of copper and molybdenum under the low-alkali medium is achieved, and the molybdenum-copper ratio of the flotation concentrate is greatly increased compared with that of conventional copper-molybdenum mixed flotation concentrate. In addition, according to the method, the dispersion effect of the copper-molybdenum flotation tailings is good, comprehensive recycling of kaolin is achieved, the resource utilization rate is increased, the discharge amount of fine-grain tailings is reduced, and favorable conditions are provided for forming an effective dry beach in a tailings pond.

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 belongs to the field of mineral flotation, and particularly relates to a composite collector, which comprises compound A, compound B and compound C; wherein the compound A is a compound with the structure of formula 1, the compound B is a compound with the structure of formula 2, and the compound C is a sulfide ore collector. The present application also comprises a flotation reagent comprising the composite collector and the application thereof. Researches of the present application show that the composite collector can improve the mineral collecting effect, and particularly for the refractory nickel sulfide ore, the composite collector still has excellent collecting capacity.

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 invention relates to the technical field of mineral flotation, and discloses a method for compounding a lithium oxide collecting agent in a low-temperature environment, and the lithium collecting agent comprises the following compounding raw materials in percentage by mass: 15-25% of palmitic acid soap; 10%-20% of sulfonated petroleum; 5% to 10% of iso-tridecanol polyoxyethylene ether; 8%-15% of fatty alcohol-polyoxyethylene ether; 3%-8% of polyoxyethylene ether sodium sulfonate; 5%-10% of dipropylene glycol monomethyl ether; 8%-15% of sodium carbonate; 2%-5% of sodium hydroxide; 0.5%-2.0% of sodium fluoride; 0.5%-2.0% of aluminum sulfate; 1%-4% of tannic acid; a synergistic surfactant system is formed by constructing palmitic soap and sulfonated petroleum as a main collecting frame and compounding isomeric alcohol ether, fatty alcohol-polyoxyethylene ether and polyoxyethylene ether sodium sulfonate, dipropylene glycol monomethyl ether is introduced as a low-temperature mutual solvent, and the low-temperature mutual solvent is used for collecting the high-temperature-resistant oil-displacing agent for the oil-displacing oil-displacing agent for the oil-displacing oil-displacing oil-displacing oil-displacing oil-displacing oil-displacing oil-displacing oil. The freezing point and viscosity of a collecting agent system are greatly reduced, the liquidity, uniformity and dispersion stability of the collecting agent are still kept when the collecting agent is used in the low-temperature environment of 0-15 DEG C, and the failure problem caused by low-temperature solidification or layering is fundamentally avoided.

The invention relates to a cassiterite flotation collecting agent and application thereof, and belongs to the technical field of mineral flotation. The collecting agent is di (2-ethylhexyl) phosphate, the molecular structure of the collecting agent has a plurality of hydrophobic branched chains and phosphate groups, the adsorption strength of the collecting agent on the cassiterite surface can be remarkably enhanced, and the hydrophobic performance of the mineral surface is effectively improved. And high-selectivity separation of cassiterite and common gangue minerals can be realized in an alkalescent to neutral ore pulp environment. The collecting agent is environmentally friendly, low in toxicity, good in dispersity and chemical stability, easy to disperse under the ore pulp stirring condition, convenient to use, high in collecting efficiency, excellent in selectivity and beneficial to obtaining high-grade cassiterite concentrate with the high recovery rate.

The invention relates to a mineral flotation method based on different-charge multi-scale bubble cooperative regulation and control, belongs to the technical field of mineral processing, and solves the problems of low mineralization efficiency and high desorption probability in a coarse particle fluidized bed flotation process in the prior art. The method comprises the following steps: step 1, system preparation; 2, starting the equipment; 3, separation is conducted, and initial collection of concentrate and tailings is completed; 4, dynamic adjustment is carried out; step 4.1, double inclination angles are cooperatively adjusted, so that the horizontal inclination angle of the strip-shaped millimeter-scale bubble production arm is kept consistent with the horizontal inclination angle of the top of the micron-scale bubble production box; and step 4.2, dynamically adjusting the ultraviolet light intensity. According to the method, the ash content data of concentrate and tailings are collected in real time through the online ash content meter, the intensity of the ultraviolet light source is dynamically adjusted, accurate regulation and control over the surface charge characteristics of the intelligent microbubbles are achieved, a'monitoring-decision-execution-feedback 'closed-loop control loop is formed, it is ensured that the flotation process is stable and reliable, and the separation efficiency of coarse-grained minerals is improved.

The invention provides a gold enhanced flotation method based on electrochemical bubble interface electronic state regulation and control, and belongs to the technical field of mineral flotation. The method comprises the following steps: grinding gold-bearing ore and pulping to obtain ore pulp; performing micro-nano bubble treatment on water to obtain bubble water; applying external potential to the sparkling water for electrochemical regulation and control to obtain functionalized sparkling water; and the ore pulp, the functionalized bubble water, a collecting agent and a foaming agent are mixed and then subjected to flotation, and gold concentrate is obtained. A bubble interface is used as a core regulation and control object, and the electronic state of the bubble interface is regulated through external potential, so that the bubble interface forms a functional interface with stable charge distribution and interface polarization characteristics, and the interface interaction between bubbles and gold and gold-loaded sulfide particles is enhanced; and the collision and attachment probability of fine mineral particles and bubbles is improved. Under the condition that the using amount of the collecting agent is low, the total flotation recovery rate of gold can be increased, meanwhile, the recovery efficiency of micro-fine particle gold is remarkably improved, and the stability of the flotation process is improved.

The invention relates to the technical field of mineral flotation, and discloses a reaction device for preparing an environment-friendly gold ore dressing agent, the reaction device comprises a base, the top end of the base is connected with a heat preservation cylinder, the top end of the heat preservation cylinder is connected with a fixed shell, and the top end of the fixed shell is rotatably provided with a rotating cover; the top end of the rotating cover is connected with a hydraulic cylinder, and the output end of the hydraulic cylinder penetrates and extends into the rotating cover. According to the device, the mixing effect can be improved while mechanical stirring and mixing can be achieved, mixed slurry can be extruded out and discharged into the reaction assembly in cooperation with a hydraulic cylinder, linkage is guaranteed, the heating effect and the reaction efficiency are effectively improved through a micro channel in the reaction assembly, and the reaction efficiency is improved. The high-temperature slurry can be rapidly cooled through the refrigeration sheet below the material receiving groove, and the stirring frame for stirring can ensure the cooling uniformity, so that the reaction efficiency of preparation is further improved.