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322 results about "Mineral flotation" patented technology

Flotation, in mineral processing, method used to separate and concentrate ores by altering their surfaces to a hydrophobic or hydrophilic condition—that is, the surfaces are either repelled or attracted by water. The flotation process was developed on a commercial scale early in the 20th century to remove very fine mineral particles...

Ultrasonic detonation rotational flow microbubble flotation device

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.
Owner:ZHUHAI JUTAL OFFSHORE OIL SERVICES CO LTD

Flotation froth image feature extraction method based on adaptive multi-scale weighted fusion

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.
Owner:ANSTEEL GROUP MINING CO LTD

Flotation process automatic control method for intelligently optimizing reinforcement learning algorithm

The invention relates to a flotation process automatic control method for intelligently optimizing a reinforcement learning algorithm. In the mineral flotation operation process, a flotation reagent system needs to be precisely controlled, for example, the dosage of reagents such as a collecting agent, an inhibitor and a foaming agent is adjusted, or process reaction parameters such as the pH value of ore pulp, the flotation temperature and the reagent reaction time are adjusted, so that the flotation index reaches the best, and maximum utilization of mineral resources is achieved. Main equipment for adding flotation reagents is a variable frequency pump, the reagent amount is adjusted through PID, meanwhile, process index data of a flotation tank are collected through a sensor, the whole control algorithm is optimized through improved FPA reinforcement learning, flotation process index data parameters serve as environment state observation values of reinforcement learning intelligent agents, and the flotation process index data parameters are calculated. Meanwhile, the design environment is rewarded according to the conditions meeting the flotation requirements, and the intelligent agent is trained through repeated environment interaction. And finally, during operation, the intelligent agent continuously gives an optimal action value parameter of a flotation cell actuator in real time, and unmanned reinforcement learning optimization control of mineral flotation is achieved.
Owner:CENT SOUTH UNIV

Method for quantitatively characterizing adsorption quantity of carboxylate and hydroximic acid medicament on surface of mineral

The invention discloses a method for quantitatively characterizing the adsorption capacity of carboxylate and hydroximic acid on the surface of a mineral, and belongs to the technical field of mineral flotation separation and detection. The invention aims to provide a method which is simple to operate and good in test repeatability, and solves the problem that the adsorption quantity of each reagent after the carboxylate and hydroximic acid combined reagent is used cannot be quantitatively represented in the current mineral flotation separation. The method mainly comprises the following steps: (1) preparing a mineral sample and a combined reagent; (2) interacting the medicament with the mineral; (3) preparing a sample to be detected; (4) establishing a measurement method; and (5) quantitatively characterizing the adsorption capacity of the medicament. According to the quantitative characterization method provided by the invention, the defect that the adsorption capacity of the mineral, the carboxylate and the hydroximic acid combined medicament cannot be quantitatively characterized after the mineral acts is overcome.
Owner:SOUTHWEAT UNIV OF SCI & TECH

Prediction method for mineral flotation yield

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.
Owner:CHANGCHUN GOLD RES INST

Inhibitor, flotation reagent and method for flotation separation of molybdenite-other metal sulfide ore

The invention belongs to the field of mineral flotation, and particularly discloses an inhibitor, a flotation reagent and a method for flotation separation of molybdenite and other metal sulfide ores, and the flotation inhibitor is a compound with a formula 1 # imgabs0 # structure; r1 is a substituted alkyl group with an active group; r2 is H, a sulfonic group or a substituent which is the same as R1; the active group comprises at least one of hydroxyl, amino, carboxyl and sulfonic group. The inhibitor in the formula 1 can selectively inhibit metal sulfide ores such as copper, lead and iron, but basically does not inhibit molybdenite, so that selective flotation separation of the molybdenite and the sulfide ores such as copper, lead and iron can be realized.
Owner:CENT SOUTH UNIV

Method for recovering whole-size lepidolite through combination of multistage magnetic separation and synergistic flotation

The invention belongs to the technical field of mineral flotation, and particularly discloses a method for recovering whole-fraction iron lepidolite through combination of multi-stage magnetic separation and synergistic flotation. Comprising a matched compound collecting agent which is composed of sodium dodecenesulfonate, amino acid methyl thiohydracrylate, an amphoteric polyacrylamide polymer, carboxyethylidene diphosphonic acid and polyethylene glycol, and efficient recovery of whole-size-fraction iron lepidolite is achieved by matching with a corresponding magnetic separation-flotation combined process. The compound collecting agent generates static electricity and physical and chemical adsorption on the iron lepidolite through specific groups such as sulfonic acid groups, carboxyl groups, amino groups, acylamino groups and phosphate groups, exerts excellent selectivity and collecting functions, generates a dispersion effect and a chelating flocculation effect on micro-fine-particle iron lepidolite, and well cooperates with multi-stage magnetic separation to recover whole-particle-size iron lepidolite, so that the recovery rate of the whole-particle-size iron lepidolite is increased, and the recovery rate of the whole-particle-size iron lepidolite is increased. And the existing combined beneficiation process of the iron lepidolite is optimized, the cost and the environmental influence are reduced, and technical support is provided for sustainable development of lithium resources.
Owner:HUNAN ZIJIN LITHIUM IND CO LTD +2

Collecting agent for micro-fine particle quartz ore as well as preparation method and application of collecting agent

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.
Owner:SONGXIAN SHANJIN MINING CO LTD +1

Nano-cellulose-based coal slime collecting agent as well as preparation method and application thereof

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.
Owner:NANHUA UNIV

Mineral flotation fine bubble flow velocity online detection method and device based on bubble image

The invention provides a mineral flotation fine bubble flow velocity online detection method and device based on a bubble image, and belongs to the technical field of mineral flotation. The method comprises the following steps: acquiring a foam image through an industrial camera, performing working condition identification on the foam image based on an image definition detection algorithm, and performing illumination compensation when the working condition is normal; extracting an image feature graph representation F and a feature reliability graph representation R of the target foam image through the feature extraction backbone network; pixel-level key points are extracted based on the target foam image through a key point detection branch; key point matching is carried out based on the image feature map representation F corresponding to the two adjacent frames of target foam images through a matching refinement module; taking a displacement average value of all key point matching results as the flow velocity of the next frame of target foam image; the actual final flow velocity is obtained according to the flow velocity of the current frame of target foam image and the preset frame number of target foam images before the current frame of target foam image, and the accuracy and stability of flow velocity online detection are improved.
Owner:BEIJING MINING & METALLURGICAL TECH GRP CO LTD

Complexing inhibitor and application thereof in flotation separation of smithsonite and calcium-containing gangue minerals

PendingCN120571699AFlotationSimple Organic CompoundsSmithsonite
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.
Owner:KUNMING UNIV OF SCI & TECH

Method for enriching rubidium and / or cesium in mineral through flotation

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.
Owner:JIANGXI UNIV OF SCI & TECH

Flotation method for micro-fine particle oxidized ore

The invention discloses a flotation method for micro-fine particle oxidized ore, belongs to the technical field of mineral flotation, and aims to solve the problem of poor flotation effect of the micro-fine particle oxidized ore caused by residual valuable minerals in flotation tailings of the micro-fine particle oxidized ore in the prior art. The method comprises the steps that raw ore particles and a flotation reagent are mixed and mixed in a stirring and size mixing barrel; the mineral slurry is fed into a flotation machine for roughing, and roughing concentrate and roughing tailings are obtained; the roughing concentrate is fed into a flotation machine for concentration, concentration concentrate and concentration tailings are obtained, and roughing is conducted on the concentration tailings again; the roughing tailings and a scavenging collecting agent are mixed and then scavenged, and scavenged concentrate and scavenged tailings are obtained; and scavenging concentrate is subjected to roughing again. The method can be used for flotation of micro-fine particle oxidized ore.
Owner:CHINA UNIV OF MINING & TECH

Collecting agent, flotation reagent and method for flotation of ilmenite

The invention belongs to the field of mineral flotation, and particularly relates to a collecting agent, a flotation reagent and a method for flotation of ilmenite, the collecting agent comprises at least one of a collecting agent a, a collecting agent b and a collecting agent c, the collecting agent a is a component with a formula 1 # imgabs 0 # structure, and the collecting agent b is a component with a formula 2 # imgabs 1 # structure; and the collecting agent c is a component with a structure as shown in a formula 3 # imgabs2 #. Researches show that an adopted collecting agent a and / or a collecting agent b can serve as a high-selectivity collecting agent of the ilmenite and have / has the high collecting capacity for the ilmenite, in addition, the collecting agent a and / or the collecting agent b do not have the collecting capacity for gangue minerals such as titanaugite and can be suitable for flotation separation of the ilmenite and the gangue minerals such as the titanaugite, and therefore the flotation separation efficiency of the ilmenite and the gangue minerals such as the titanaugite is improved. And high-grade titanium concentrate is obtained.
Owner:CENT SOUTH UNIV

Xanthate collecting agent and preparation method and application thereof

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.
Owner:CHANGSHA HONGKUANG TECHNOLOGY CO LTD

Efficient mineral selective flotation reagent and application thereof

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

Cellulose-based coal slime collecting agent as well as preparation method and application thereof

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.
Owner:NANHUA UNIV

Mineral flotation separation equipment with multi-stage regulation

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.
Owner:GUANGXI UNIV FOR NATITIES +2

Low-temperature-resistant spodumene flotation collector as well as preparation method and application thereof

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.
Owner:KUNMING UNIV OF SCI & TECH

Copper sulfate-free copper-zinc sulfide ore flotation separation method

The invention relates to a copper sulfate-free copper-zinc sulfide ore flotation separation method, and relates to the technical field of mineral flotation separation. The method comprises the following steps: obtaining copper-zinc sulfide ore pulp; by taking ethionine ester as a collecting agent and lime as an inhibitor, carrying out copper-zinc bulk flotation on the copper-zinc sulfide ore pulp to obtain copper-zinc bulk concentrate and discardable tailings; zinc sulfate serves as an inhibitor, the copper-zinc bulk concentrate is subjected to regrinding treatment, and copper-zinc bulk concentrate pulp is obtained; copper flotation is conducted on the copper-zinc bulk concentrate pulp, and copper concentrate and copper tailing pulp are obtained; with ethionine ester as a collecting agent, the copper tailing ore pulp is subjected to sphalerite activation under the condition of aeration stirring, and activated sphalerite ore pulp is obtained; and carrying out flotation on the activated sphalerite by using lime as an inhibitor to obtain zinc concentrate. The scheme provided by the invention has the advantages that heavy metal pollution is avoided, the mineral separation cost is reduced, and the process adaptability is high.
Owner:SHENZHEN ZHONGJIN LINGNAN NONFEMET COMPANY +2

Fluoride-free strong-acid-free reverse flotation method for extracting high-purity quartz sand flotation product from granite pegmatite

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.
Owner:CENT SOUTH UNIV +1

A highly efficient flotation separation method for complex copper-iron sulfide ores

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.
Owner:KUNMING UNIV OF SCI & TECH

AI-energized high-throughput screening method for beneficiation flotation reagents

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.
Owner:WUHAN UNIV OF TECH

A flotation collector for non-ferrous metal sulfide ores, its preparation method and application

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.
Owner:QINGDAO UNIV OF SCI & TECH +1

Method for the flotation enrichment of rubidium and / or cesium in minerals

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.
Owner:JIANGXI UNIV OF SCI & TECH

Collecting agent for niobium mineral flotation and preparation method and application thereof

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.
Owner:INNER MONGOLIA UNIV OF SCI & TECH

Ultrasonic multi-stage speed mixing and stirring dosing device

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.
Owner:ANHUI UNIV OF SCI & TECH

Dihydroxy thioisoflavone copper-arsenic separation inhibitor as well as preparation method and application thereof

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.
Owner:TIBET JINLONG MINING CO LTD +2

Method for process water treatment

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.
Owner:METSO OUTOTEC FINLAND OY

Low-alkali and low-calcium comprehensive utilization method of high-clay copper-molybdenum sulfide ore

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.
Owner:INST OF RESOURCES UTILIZATION & RARE EARTH DEV GUANGDONG ACAD OF SCI +1