54 results about "Scheelite" patented technology

The invention discloses a normal-temperature efficient recovery method for low-grade tungsten in gold, antimony and tungsten multi-metal symbiotic ore. The method comprises the steps that raw ore is ground and then subjected to shaking table reselection, reselected concentrate, reselected middling and reselected tailings are obtained, foam flotation is conducted on the reselected middling, sulfide ore is floated out, coarse-grain tungsten minerals are recycled through reselection of the flotation tailings, ore grinding is conducted on the reselected tailings, gold and antimony bulk flotation is conducted, then scheelite flotation and tungsten concentrate flotation are conducted under the action of a combined collecting agent, and finally tungsten concentrate is obtained. According to the method, aiming at the characteristic that the granularity of the tungsten mineral in the gold-antimony-tungsten symbiotic ore is uneven in thickness distribution, a proper ore grinding separation process and proper ore grinding fineness are selected, the tungsten mineral is prevented from being over-crushed, and underground wastewater is reasonably utilized, so that the use amount of clear water is effectively reduced, and meanwhile, the underground wastewater is recycled; furthermore, an ore pulp heating process is omitted in the tungsten ore concentration stage, the fuel cost is greatly reduced, and therefore the production cost is greatly reduced on the premise that the tungsten concentrate recovery rate is guaranteed.

This invention relates to the field of scheelite processing technology, and particularly to a method for processing scheelite ore, comprising the following steps: first, slurry conditioning; pH adjustment, the method for controlling the pH value of the reaction solution includes: after controlling the reaction solution to a first pH value, lowering the pH value to a second pH value every first time period, and finally controlling the residual acid concentration of the reaction solution to be controlled at 8-11 g / L and maintained for a second time period; first filtration; second slurry conditioning; leaching; second filtration. Using the scheelite ore processing method provided by this invention, after treating the scheelite ore with a first reagent under certain conditions, followed by leaching treatment, effectively reduces the tungsten content in the slag and reduces tungsten loss. This method has the advantages of a short process, less reagent addition, less slag and solution formation, and significantly reduced tungsten loss.

This invention discloses an efficient separation and beneficiation method for scheelite, wolframite, and cassiterite in a tungsten-tin mixed concentrate, comprising the following steps: (1) pre-treatment by grinding, flotation desulfurization, and weak magnetic separation to remove iron from the tungsten-tin mixed concentrate to obtain weak magnetic tailings; (2) concentration and drying of the weak magnetic tailings obtained in step (1) followed by electrostatic separation to obtain electrostatic concentrate and electrostatic tailings; (3) stirring and slurry conditioning of the electrostatic concentrate obtained in step (2) followed by strong magnetic separation to obtain strong magnetic concentrate and strong magnetic tailings; stirring and slurry conditioning of the electrostatic tailings obtained in step (2) followed by scheelite upgrading flotation to obtain scheelite concentrate and scheelite flotation tailings. Based on the differences in conductivity, magnetism, and flotation properties of scheelite, wolframite, and cassiterite, this invention employs a “cassiterite / wolframite electrostatic separation-wolframite / cassiterite strong magnetic separation-scheelite upgrading flotation” process to achieve efficient separation of wolframite, scheelite, and cassiterite.

The utility model relates to the technical field of filling mining, and discloses a gently inclined medium-thickness ore body filling mining device which comprises a vehicle body, limiting sliding grooves are formed in the front inner wall and the rear inner wall of the vehicle body, a feeding hopper is fixedly installed at the left end of the bottom of the vehicle body, and a first conveying mechanism is arranged on the right side of the feeding hopper. A discharging hopper is fixedly installed at the right end of the bottom of the vehicle body, a second conveying mechanism is arranged on the left side of the discharging hopper, two crushing rollers are arranged between the first conveying mechanism and the second conveying mechanism, a second rotating shaft is fixedly inserted in each crushing roller, and a transverse plate is arranged at the bottom of each crushing roller; and it is ensured that discharged scheelite is fully crushed, later fine treatment is facilitated, and the practicability of the device is effectively improved.

The invention relates to scheelite matrix non-rare earth activated dark red fluorescent powder. The composition of the material is M3A2 (W, Mo) (1-x-y) O9: xMn < 4 + >, yBi < 3 + >, in the formula, M is any one of alkaline earth metals Ca, Sr and Ba; a is any one of Y, Gd and La; 0 lt; 0 < = y < = 1%. The dark red fluorescent powder provided by the invention is stable in matrix structure and performance, relatively good in physical and chemical stability, stable in luminescence performance, firm and uniform in particle, and relatively high in crystallinity and purity. A tungsten molybdate solid solution is used as a matrix, Mn < 4 + > is used as a luminescence center, Bi < 3 + > is used as a sensitizer, the raw materials are easy to obtain and non-toxic, and the prepared product can effectively absorb near ultraviolet light in the range of 300-400 nm and emit dark red light in the range of 650-700 nm, and has a certain beneficial effect of supplementing red light in the field of current white light LEDs and plant illumination LEDs.

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

The invention provides a beneficiation method for recovering scheelite from low-grade tailings, and belongs to the technical field of ore separation processes. According to the method, the tungsten-containing tailings which are low in grade, low in value and difficult to recover are converted into valuable and easy-to-recover ore resources at low cost through the magnetic separation / centrifugal machine reselection combined physical mineral separation technology, and the reagent cost of subsequent flotation is greatly reduced. Then carrying out a flotation test, and discarding tailings of flotation middlings by adopting a centrifugal machine so as to remove gangue which is easy to float and argillization and avoid continuous circulation and accumulation of the gangue in a closed circuit to influence the floating of target minerals and the quality of concentrate; meanwhile, a nontoxic and environment-friendly gangue inhibitor CD-6 is adopted and matched with a CK-3 composite collecting agent, efficient separation of gangue minerals and tungsten minerals is achieved, finally, comprehensive recycling of extremely-low-grade tungsten-containing tailing resources is achieved, and a new effective method is provided for development and utilization of similar tungsten-containing tailing resources.

The utility model discloses preparation equipment for fluorite and scheelite associated ore. The preparation equipment comprises a first crushing barrel, a separation barrel, a second crushing barrel, a third crushing barrel, a flotation barrel and an acid leaching barrel which are arranged from top to bottom, the first crushing barrel is used for crushing ores to a first preset particle size; the sorting barrel comprises a sorting device, a first sorting discharge port, a second sorting discharge port and a third sorting discharge port, and the sorting device sorts scheelite coarse ore and fluorite coarse ore from the coarse ore through X rays; the scheelite coarse ore and the fluorite coarse ore sequentially fall into the first separation discharging opening and the second separation discharging opening; the second crushing barrel is used for crushing the scheelite coarse ore to a second preset particle size; the third crushing barrel is used for crushing the fluorite coarse ore to a third preset particle size; the flotation barrel is connected with the second crushing barrel and used for flotation of scheelite concentrate and scheelite tailings; the acid leaching barrel is connected with the flotation barrel and the third crushing barrel and used for conducting acid leaching on the scheelite tailings and the fluorite coarse ore to form fluorite concentrate. The fluorite and scheelite associated ore separator can realize separation of fluorite and scheelite associated ore.

The invention belongs to the field of mineral processing and secondary resource recycling, and particularly relates to a method and a system for recovering tungsten from scheelite heating concentrate tailings, the method comprises the following steps: blowing carbon dioxide-containing gas into slurry containing the scheelite heating concentrate tailings, and carrying out gas-solid-liquid three-phase activation treatment to obtain activated ore pulp; and then the activated ore pulp is directly subjected to roughing without an additional collecting agent, and scheelite roughing concentrate is obtained. According to the method, carbon dioxide is creatively adopted for carrying out gas-solid-liquid three-phase modification activation on the tailings, in this way, the surface property of the tailings can be optimized, scheelite surface calcium sites are selectively activated, and the recovery rate and the collecting selectivity of tungsten in the tailings can be effectively improved through further cooperation with subsequent direct flotation treatment without additional agents.

The invention discloses a method for preparing Sr < 0.6 > Ba < 0.4-x > MoO4: xPr < 3 + >, yPEG-200 system scheelite type red fluorescent powder by a combustion method, Sr (NO3) 2, Ba (NO3) 2 and (NH4) 6Mo7O14. 4H2O are used as reaction raw materials, Pr < 3 + > is used as rare earth ion doping, citric acid is used as a combustion improver, and the Sr < 0.6 > Ba < 0.4-x > MoO4: xPr < 3 + > fluorescent powder is synthesized by combustion. A combustion method is adopted for synthesis, the advantages of being low in reaction temperature, short in time and small in synthesized sample particle are achieved, and the Sr0. 6Ba < 0.4-x > MoO4: xPr < 3 + >, yPEG-200 red fluorescent powder synthesized through the experiment is high in luminescence performance and can be used as red fluorescent powder for a white light LED. According to the invention, the surfactant PEG-200 is added to improve the morphology of the sample and enhance the luminescence property of the sample, and the trivalent praseodymium ions are doped in the molybdate with the scheelite structure, so that the luminescent material has high emission intensity in a dark red region.

This invention belongs to the field of mineral processing technology, specifically disclosing a method for recovering scheelite and fluorite from scheelite rough concentrate by ambient temperature flotation. It replaces the traditional reagents used in laboratory-scale tests with a reagent combination of sodium carbonate, brine glass, and a lead nitrate-hydroxyvalerate complex. Combined with grinding, concentration, and de-removal pretreatment, this method achieves efficient recovery of scheelite and fluorite from scheelite rough concentrate under ambient temperature conditions. The recovered scheelite concentrate has a WO3 grade of over 32.95%, with an operational recovery rate of over 61.55%; the fluorite concentrate has a CaF2 grade of over 93.22%, with an operational recovery rate of over 51.25%. This method achieves comprehensive recovery and utilization of associated resources, eliminating the need for heating or acid leaching treatment and significantly reducing energy consumption.

The present application belongs to the field of calcium-containing mineral flotation, and particularly relates to a combined collector, which comprises a collector A and a collector B, wherein the collector A is at least one compound with the structural formula of formula 1; the collector B is a collector capable of collecting scheelite; in R1-R4, at least two substituents are substituents of formula a, and the remaining substituents are H, C1-C3 alkyl or formula a. The present application also includes the use of the combined collector for the collection and flotation of scheelite. The combined collector can synergistically improve the flotation of scheelite and help to improve the selective flotation separation of scheelite and calcium-containing gangue.

The application discloses a combined depressor for recovering scheelite from ultra-low-grade tungsten-molybdenum associated ore and a method, the combined depressor comprising sodium humate, sodium mercaptoacetate, ammonium citrate, sodium pyrophosphate, sodium fluosilicate and lead nitrate, and the six kinds of substances are configured into the combined depressor in a proportion of 1:1:(2-5):(1-5):(1-3):(2-5). The application aims at recovering scheelite from low-grade refractory ore, improves the separation effect of scheelite and gangue minerals, improves the scheelite recovery rate and the concentrate grade, and improves the economic benefit.

The invention discloses a CaCeNbWO8-based high-entropy negative temperature coefficient thermal sensitive ceramic material and a preparation method thereof, belongs to the field of negative temperature coefficient thermistors, and aims to expand the temperature zone range of a scheelite structure negative temperature coefficient thermal sensitive ceramic material. The material is prepared by mixing and firing raw materials including calcium carbonate, cerium dioxide, tungsten oxide, niobium pentoxide, samarium oxide, europium oxide, lanthanum trioxide, holmium oxide or dysprosium oxide according to a stoichiometric ratio, the chemical formula is (Ca1 / 3Ce1 / 3M1 / 3) (Nb1 / 2W1 / 2) O4, and M is Sm, Eu, La, Ho or Dy; the electrical property parameters of the thermal sensitive ceramic material with the negative temperature coefficient are as follows: B200 DEG C / 1100 DEG C is equal to 6081-7210 + / -1.8% K, rho1100 DEG C is equal to 2.87 * 10 < 3 >-4.09 * 10 < 3 > + / -1.37% omega.cm, and the applicable temperature range is 200-1100 DEG C. The material has a wide temperature range of 200-1100 DEG C, can maintain high sensitivity at a high temperature due to a large material constant B value, and shows excellent aging stability at 1000 DEG C. Through measurement, the resistance drift rate of the thermal sensitive ceramic material with the negative temperature coefficient is less than 3.49 + / -0.03% after the thermal sensitive ceramic material is aged at 1000 DEG C for 500 hours.

The invention discloses a beneficiation method for efficiently and comprehensively recovering tungsten-molybdenum-bismuth polymetallic ore, and relates to the technical field of nonferrous metal beneficiation. Raw ore is subjected to ore grinding, grading and stirring to obtain feeding ore pulp, then bulk flotation roughing is conducted, and rough concentrate and roughing tailings are obtained; the roughing tailings are subjected to mixed flotation scavenging, and scavenged concentrate and scavenged tailings are obtained; the scavenging tailings are subjected to low-intensity magnetic separation, and iron ore concentrate and low-intensity magnetic tailings are obtained; performing strong magnetic roughing operation on the weak magnetic tailings to obtain wolframite rough concentrate and strong magnetic tailings; the wolframite rough concentrate is subjected to gravity separation to obtain wolframite concentrate and gravity separation tailings; the strong magnetic tailings are subjected to scheelite flotation, and scheelite concentrate and scheelite flotation tailings are obtained; fluorite flotation is conducted on scheelite flotation tailings, fluorite concentration first foam and fluorite scavenging tailings are obtained, the fluorite concentration first foam is subjected to repeated concentration for 2-8 times, fluorite concentrate products are obtained, and efficient multi-metal separation is achieved through the processes of molybdenum-bismuth-sulfur bulk flotation, iron low-intensity magnetic separation, wolframite high-intensity magnetic separation, wolframite gravity separation, scheelite flotation and fluorite flotation.

The present invention discloses a device for recovering scheelite by strong magnetic-gravity separation of polymetallic ores. The device comprises a weak magnetic separator (100), a strong magnetic separator (200), a first buffer tank (300), a second buffer tank (500) and a centrifugal concentrator (600). Magnetite concentrate, scheelite coarse ore and tailings (discarded tails) can be separated through a single magnetic separation, thereby reducing the processing volume of strong magnetic separation and saving production costs. The scheelite coarse ore obtained by rough separation is concentrated and subjected to multiple centrifugal operations to obtain scheelite concentrate. The grade and recovery rate of the recovered scheelite in this manner are both improved.

The present invention discloses a beneficiation process for recovering scheelite and fluorite from muddy tungsten polymetallic ore. The process sequentially removes magnetite, removes weak magnetic ore, acidifies and removes sulfide ore, selects a mixed scheelite-fluorite mixture, and then centrifuges to obtain scheelite concentrate and fluorite concentrate. The process employs magnetic separation followed by flotation to reduce equipment corrosion while also improving the grade and recovery rate of the scheelite concentrate and fluorite. Under the conditions of a strong magnetic tailings containing 0.34% tungsten and 25.65% fluorite, experiments have shown that a scheelite concentrate with a tungsten content of 17.96% and a cumulative recovery rate of 20.42% can be obtained; a fluorite concentrate with a fluorite content of 77.86% and a cumulative recovery rate of 47.72% can be obtained.

This invention discloses a method for treating scheelite beneficiation wastewater based on gradient desiliconization and micro / nano bubble oxidation. The method includes the following steps: adding lime to the scheelite beneficiation wastewater for coagulation and sedimentation; collecting the primary supernatant after sedimentation separation; adding a calcium source for deep desiliconization; introducing micro / nano bubbles for oxidation treatment; removing scum from the upper layer of the water system; and adjusting the pH of the effluent to complete the deep treatment of the scheelite beneficiation wastewater. This method, through the synergistic effect of "gradient desiliconization" and "micro / nano bubble oxidation," can achieve simultaneous deep removal of silicon and organic pollutants from scheelite beneficiation wastewater. The treated effluent is of stable quality and can be directly reused in the tungsten flotation process, realizing closed-loop wastewater recycling and resource utilization. It is highly efficient, economical, has high practical value, and promising application prospects.

This invention relates to the field of mineral processing technology, specifically disclosing a beneficiation method for high-calcium and high-iron scheelite. The beneficiation method for high-calcium and high-iron scheelite provided by this invention removes calcium and iron in stages, achieving efficient extraction of scheelite and demonstrating strong applicability. This invention overcomes the interference of calcium- and iron-containing gangue minerals on scheelite flotation, reduces the addition of large amounts of water glass reagents during flotation, improves tailings settling performance, reduces tailings wastewater treatment and reuse costs, and achieves clean production of scheelite concentrate.

A kind of triclinic BiVO4, tetragonal scheelite BiVO4 and [Bi6O5(OH)3] (NO3) 5·3H2O nanosheet material and its preparation method, comprising: bismuth nitrate pentahydrate and cetyltrimethylammonium bromide are dissolved in distilled water, after stirring, solution A is obtained by reaction in microwave reactor at 100 DEG C;Ammonium metavanadate is dissolved in distilled water, stirring until completely dissolved to obtain solution B;Solution A is added dropwise to the flask containing solution B and stirred to obtain solution C;Solution C is obtained by reaction at 100 DEG C using microwave irradiation method, after suspension is obtained by centrifugation, washing, drying to obtain triclinic BiVO4, tetragonal scheelite BiVO4 and [Bi6O5(OH)3] (NO3) 5·3H2O three-phase coexistence material.

The utility model is applicable to the technical field of scheelite concentrate recovery, and provides a scheelite concentrate recovery device which comprises a bottom plate, a rotating shaft is rotatably mounted on the bottom plate, and a spiral chute for recovering scheelite concentrate is fixedly sleeved on the rotating shaft; the two stop blocks are fixedly arranged on the inner wall of the spiral chute; the material receiving shell is fixedly mounted on the spiral chute, and a plurality of material receiving openings are formed in the material receiving shell; the first motor is arranged below the bottom plate, and an output shaft of the first motor is fixedly connected with the bottom end of the rotating shaft; and the cleaning mechanism is assembled on the bottom plate and is used for cleaning the spiral chute. According to the scheelite concentrate recovery device provided by the scheme, the problem that the labor intensity of workers is increased due to the fact that residual materials need to be manually cleaned after the scheelite concentrate recovery operation is completed through an existing spiral chute is solved.

The present invention belongs to the technical field of polymetallic ore dressing, and specifically relates to a comprehensive tungsten-containing polymetallic ore dressing system. The system comprises a crusher, a grinding mill, a magnetic separator, a first mixer, a sulfide ore flotation unit, a second mixer, a scheelite-fluorite co-flotation unit, a first centrifuge unit, a fluorite concentrate tank, and a scheelite concentrate tank. The system sequentially crushes, grinds, removes magnets, removes weakly magnetic ore, flots sulfide ore, flots scheelite-fluorite, and re-separates scheelite-fluorite to produce high-grade concentrates of magnetite, wolframite, sulfide ore, fluorite, and scheelite, achieving comprehensive resource recovery.

The present application belongs to the field of flotation, and particularly relates to a combined collector for flotation of scheelite, a flotation reagent and a method. The combined collector comprises component A and component B; the component A comprises a compound with the structure of formula 1; the component B comprises a compound with the structure of formula 2; and in the combined collector, the weight content of the component A is greater than or equal to 40%. According to the method, a scheelite concentrate with a high WO3 grade can be obtained through one stage of cleaning, the WO3 enrichment ratio is greater than 10, and the flotation recovery rate is high. The combined collector provided by the present application has simple components and is environmentally friendly, the loss rate of scheelite in the flotation tailings is low, and efficient flotation of scheelite and flotation separation between scheelite and calcium-containing gangue minerals can be realized.

The application provides a low-grade scheelite and fluorite ore beneficiation separation method. The preparation method adopts a scheelite-fluorite mixed flotation-scheelite-fluorite mixed concentrate reseparation process, through adopting a xanthate collector to preferentially remove pyrite, magnetic pyrite and other sulfide minerals, the interference of the sulfide minerals on subsequent scheelite-fluorite flotation is reduced; then through controlling the pH value of the scheelite-fluorite separation flotation slurry, and under the action of a special inhibitor, the scheelite-fluorite mixed concentrate is subjected to a reseparation process; in this way, the inhibition of fluorite in the traditional preferential flotation of scheelite and then fluorite process can be effectively reduced, and finally the efficient flotation of scheelite and fluorite ore is realized. Through controlling the pH value at 3-5 and adding an inhibitor SW, the argillaceous gangue such as calcite can be effectively inhibited, the floatability of scheelite is good, and the fluorite is basically not floated, so that higher-grade scheelite and fluorite concentrates can be obtained.

The invention belongs to the technical field of tungsten smelting, and particularly relates to a method for preparing ammonium paratungstate from scheelite, which comprises the following steps of: washing out a flotation agent, phosphorus and other impurities in scheelite concentrate from the surface of the scheelite through ball milling and pretreatment of acid washing with a surfactant and diluted hydrochloric acid; according to the method, the pre-treated scheelite is subjected to acid decomposition treatment twice by hydrochloric acid, so that the phosphorus-containing impurities in the scheelite are washed out, potassium and sodium mixed in tungstic acid crystal lattices are replaced out, and the effect of deep impurity removal is achieved; the purity of refined tungstic acid prepared through two times of acid decomposition is high, impurities in an ammonia solution obtained after ammonia dissolution are qualified, ammonium paratungstate obtained through evaporative crystallization can reach the national standard zero level, the amount of waste water generated in the whole production process is small, and cost is low.

The present application belongs to the field of mineral processing and secondary resource recycling, and particularly relates to a method and system for recovering tungsten from scheelite warming cleaning tailings, the method being: blowing carbon dioxide-containing gas into a slurry containing scheelite warming cleaning tailings to perform gas-solid-liquid three-phase activation treatment, obtaining an activated ore slurry, and then directly performing roughing on the activated ore slurry without adding a collector to obtain scheelite roughing concentrate. The present application innovatively uses carbon dioxide to perform gas-solid-liquid three-phase modification and activation, which can optimize the surface properties of the tailings, selectively activate the calcium sites on the surface of scheelite, and further cooperate with the subsequent direct flotation treatment without adding a collector, so as to effectively improve the recovery rate and collection selectivity of tungsten in the tailings.

The invention relates to the technical field of mineral flotation, in particular to a flotation collecting agent for scheelite and a preparation method of the flotation collecting agent. The flotation collecting agent for scheelite comprises the following components in parts by weight: 40-60 parts of a compound A, 10-20 parts of sodium oleate, 5-8 parts of thiadiacid and 1-5 parts of an emulsifier. The flotation collecting agent for scheelite can improve the concentrate yield, grade and recovery rate.

The invention belongs to the technical field of tungsten ore beneficiation, and particularly relates to a pre-enrichment beneficiation method for low-grade mixed tungsten ore. The tungsten ore is sequentially subjected to ore grinding, magnetic separation and flotation, and tungsten rough concentrate and flotation tailings are obtained. The pre-concentration beneficiation method can be applied to efficient pre-concentration of micro-fine-particle wolframite, scheelite and scheelite and wolframite mixed ore, and favorable conditions are created for follow-up concentration. According to the pre-enrichment beneficiation method provided by the invention, the flotation process is reasonably set, and meanwhile, the reagents used in the flotation step are optimized, so that the effective recovery rate of tungsten can be greatly improved, and efficient comprehensive utilization of micro-fine tungsten particles is realized. In conclusion, the pre-concentration beneficiation method has the advantages of being simple in process, friendly to the environment and high in beneficiation recovery rate.

The present invention belongs to the field of scheelite flotation, and specifically discloses a collector, a composite flotation agent and a method for flotation separation of scheelite and calcium-containing gangue, wherein the flotation separation steps are: using a flotation agent containing a collector to float a mixed mineral containing scheelite and calcium-containing gangue to obtain scheelite concentrate and calcium-containing gangue tailings; the collector includes at least one of collector a#imgabs0# and collector b#imgabs1#; R1 and R2 are independently C4~C 12 wherein M is H, Na, K or NH4. The collector of the present invention has obvious capture selectivity for calcium-containing mineral scheelite and excellent capture capacity.

According to the intelligent prospecting data analysis method based on scheelite specific geological feature driving, explicit coding and accurate embedding of scheelite mineralization logic are achieved by constructing an improved GCN model driven by geological rules, it can be forcibly predicted that a target region strictly follows the mineralization rules, and the prediction accuracy is improved. The prediction precision and the positioning accuracy of the prospecting target area are obviously improved; the output prospecting target report is highly consistent with the geological evidence, the exploration period can be effectively shortened, and the invalid exploration cost is reduced; meanwhile, the model provides an intelligent technical scheme with high efficiency and high geological interpretability for precise scheelite prospecting, the misjudgment rate of a non-metallogenic area can be greatly reduced, and the scientificity and reliability of exploration decision making are improved.