Collector Through the study of Huang Qimao et al various functional groups as well as the nature of the functional group and the study of the mechanism of chelate metal ions, various kinds of developed novel fatty acid derivatives substituted phosphorus collector, phosphate rock flotation process in the , showing many advantages. A variety of carboxyl-containing α-chloro fatty acid ester flotation collectors and α-amino fatty acid collectors were synthesized and introduced into the flotation of a phosphate rock in Yunnan by introducing chlorine atoms at the α position. The results showed that the introduction of α-substituent group and polyhydroxy group improved the selectivity and water solubility of the flotation collector, and obtained a better flotation effect. Huang Qimao et al. found that the α-chloro fatty acid citric acid monoester was combined with α-chloro fatty acid sodium to obtain composite collectors D-SO-A and D in the study of different kinds of α-substituted fatty acid phosphate collectors. The -S0-B series has a strong advantage for some specific phosphate rock flotation. Guo Lei et al. synthesized a novel quaternary ammonium salt hydroxamate flotation floc collector using soy oleic acid as raw material through α-chloro, esterification, salt formation, deuteration and acidification. Research on the positive and negative flotation process of a medium-low grade (P2O5 17.09%) siliceous calcium phosphate rock in Hubei. The results show that compared with the traditional fatty acid phosphate rock flotation collector, the water solubility of the collector is good, the flotation performance is obviously improved, and the raw materials are easy to obtain and the price is cheap. DY-P is a newly developed phosphorus-selecting collector with high water solubility and can be mixed with water in any ratio and has stable properties. In order to improve the utilization of phosphorus resources in a phosphate mine in the north, Dai Xinyu and others used the DY-P phosphorus collector to conduct a mineral processing test on the phosphate rock. The results show that the DY-P phosphorus collector has broad adaptability to the phosphate rock and is less affected by temperature. In the closed circuit test, the P2O5 grade can reach 38.12%, the recovery rate is 89.45%, and the impurity iron mass fraction is 1.07% phosphorus concentrate product. The dosage of DY-P collector is only about 40% of the on-site phosphate collector, and the use of DY-P phosphorus collector not only reduces the mass fraction of iron in the phosphate concentrate, but also does not use other chemicals such as glass. The cost of the beneficiation agent is also greatly reduced. OT-8 is a phosphate mineral collector obtained by compounding cotton oil soap. In the compounding of OT-8, a small amount of surfactant is added. These surfactants can promote the adsorption of fatty acid collectors on the surface of apatite, improve the chemical environment of calcium and magnesium ions on the surface of minerals, and increase the fatty acid at low temperatures. Disperse under. The use of OT-8 collector can improve the hydrophobicity of minerals, reduce the flotation temperature of the slurry, and achieve low temperature flotation. Luo Huihua and others used OT-8 to float the Susong phosphate mine and Haizhou phosphate mine at a low temperature of 3~8 °C, and all of them obtained good ore dressing indicators. Ge Yingyong et al. disclosed a colloidal phosphate flotation collector with the following composition: 55%~75% mixed hydroxamic acid, 24%~44% C18 unsaturated fatty acid, and 1%~3% OP -10. The collector can realize positive flotation of low-grade collophanite at normal temperature (25~35 °C). Huang Jun et al. disclosed a oleic acid amide-type phosphate rock flotation collector, which is easy to obtain, low in price, simple in synthesis route, safe and reliable, and has better flotation effect than conventional flotation reagents. The efficiency is significantly improved. Cui Yongliang et al. introduced the product characteristics, development direction of oxidized paraffin soap and the difference in the production process of synthetic fatty acids. Through the production practice, the oxidation temperature was 140-145 °C, the wind speed was 12~13 m/min, the end acid value was 90, the saponification temperature was 100 °C, the heat treatment tube furnace outlet temperature was 150-180 °C, and the material residence time was 1 h. According to the process conditions, the obtained oxidized paraffin soap product has obvious advantages in comparison with the conventional product in the flotation application of phosphate rock. Wang Haijun introduced the adaptability of the modified oxidized paraffin soap to the phosphorus selection process of the Lushan Phosphorus Mine. The use of the agent can stably improve the production index and product quality, and can effectively reduce the ore dressing cost and greatly improve the dewatering operation effect. Ding Ning et al. used a new type of composite collector to carry out a flotation test on a high-silica phosphate mine in Guizhou by means of positive flotation. The amount of inhibitor, the proportion of collector and the amount of synergist were investigated for concentrate yield and fineness. The effect of P2O5 grade of mine and P2O5 recovery of concentrate. The results show that when the ore P2O5 grade is 24.64%, the grinding fineness is -0.074 mm, 86%, the collector dosage is 0.92 kg/t, the collector W01 and W02 compound ratio is 2..1, the inhibitor Na2CO 3 dosage. 11.54 kg / t, Na 2SiO3 dosage 3.0 kg / t, synergist dosage 0.75 kg / t, P2O5 grade 30.16%, P2O5 recovery rate 90.25% phosphorus concentrate. Zhou Xian et al. used oleic acid as raw material to obtain a novel anionic surfactant, sodium fatty acid methyl ester sulfonate (MES), by esterification, sulfonation and neutralization. Studies have shown that it is used as a phosphate rock collector, and its flotation performance is basically the same as that of sodium oleate. The difference is that it has better selectivity and stronger resistance to hard water. Li Donglian et al reported that sodium dodecyl sulfate (SDS) and soap feet were mixed in different proportions to obtain a mixed type of fatty acid flotation collector, and the concentrate was obtained at a lower temperature (13-15 ° C). The grade reached 30.40% and the recovery rate reached 81.36%. Modified fatty acid XF-1 is a new type of phosphate mineral collector. In order to investigate its flotation effect on phosphate rock, Yang Changyan chose XF-1, sodium sulfonate oleate and sodium oleate as collectors. Flotation of phosphate rock, comparative analysis of potentiodynamic and single mineral absorption showed that XF-1, sodium sulfonate and sodium oleate were used when the amount of collector was 1.5 kg/t and the flotation temperature was 30 °C. The ore concentration of P2O5 grade 21% was increased to 27%, 23.6%, 22.1%, and the phosphorus recovery rates were 85%, 75.4%, and 74.8%, respectively. At 15~25 °C, the phosphate rock obtained by XF-1 flotation The grade and phosphorus recovery rate is significantly higher than that of sodium sulfonate and sodium oleate. Using a closed-loop flotation process combining rough selection and selection, the collector XF-1 selects a phosphate concentrate with a grade of 30% and a phosphorus recovery of 90%, and the concentrate magnesium oxide mass fraction is only 1.4%. XF-1 exhibits better affinity and adsorption than sodium sulfonate and sodium oleate. XF-1 has good harvesting performance. Zheng Guibing et al. conducted a pilot study on the collector BK420. Compared with the conventional collector (oleic acid), the application test of the collector BK420 in the recovery of associated phosphate rock in an iron ore mine in Chengde showed that the slurry was at room temperature. Under the condition of grinding, the fineness of grinding is -74 μm and the mass fraction is 48%. After a rough selection and three times of sweeping, the sequence is returned to the closed-circuit flotation process, and the P2O5 is 33.12%, and the P2O5 recovery rate is 89.62. % of phosphate concentrate. BK420 can be used as a good low temperature collector for associated phosphate rock. In order to effectively use the low-grade phosphate rock in the north and reduce the cost of mineral processing, Wu Yanni and others used the waste by-products of animal and vegetable oils and fats as the main raw materials, and with a proper amount of synergist, developed a cheap collector AW-25. The test results show that AW-25 can obtain better beneficiation index. The agent has good collection, selectivity and low temperature resistance, and is suitable for flotation of low grade phosphate rock in northern concentrator. Li Yan discovered through flotation experiments on some difficult phosphate ore systems: A collector as an unsaturated fatty acid can replace or partially replace other flotation collectors such as AW and Fuxin soap; When the collector and the surfactant constitute a fatty acid mixed type collector, the flotation performance of the A collector can be improved, and a good test result is obtained. Luo Binbin et al. combined a new type of drug DMF-1 on sodium oleate, sodium dodecyl sulfonate and DES to test the performance of a phosphate rock in Chaoyang, and used this as a collector to carry out the flotation process. Technical condition test and open circuit test. In the grinding fineness -0.074 mm accounted for 46%, the pulp pH value of 7.00, DMF-1 dosage 200 g / t, temperature 30 °C, water glass dosage 400 g / t, using a rough selection three times a selection sweep test The process obtained the index of 36.46% phosphorus concentrate grade, recovery rate 53.33% and tailings grade 0.21%, which indicated that the collector DMF-1 has the characteristics of simple chemical system, low dosage, no need for pulp heating and good harvesting effect. Based on the analysis of the test results, the synergistic effect and mechanism of the three components in DMF-1 were studied. Among them, sodium dodecyl sulfate was mainly foaming; sodium oleate was chemically adsorbed on the surface of minerals to be hydrophobic. And the collection effect; DES enhances the collection performance of the drug DMF-1 by the synergistic action of chemical adsorption and hydrogen bond adsorption. Dong Yingbo et al. disclosed a method for preparing a low-temperature collector for phosphate rock: adding a hydrochloric acid solution of n-hexylamine to a three-necked flask equipped with a condensing device, and adding a phosphorous acid solution under heating, and heating the reactant to 105 ° C. After adding dropwise the formaldehyde solution, the reaction mixture is kept at reflux temperature for 3-6 hours, and the obtained n-hexylamine bis-methylphosphonic acid solution is mixed with a certain amount of sodium dodecyl sulfate solution to obtain a phosphate rock. Low temperature collector. For the medium and low temperature flotation of phosphate rock, the selection index of not less than the traditional collector under heating conditions can be obtained. Jiang Xiaoming et al. used a new collector F-1 to conduct a flotation test on a low-grade phosphate rock in Saudi Arabia by a single reverse flotation method. The grinding fineness, flotation time, inhibitor and collector dosage were investigated. The effect on the P2O5 grade and P2O5 recovery of concentrate. The results show that when the grade of P2O5 is 19.60%, the fineness of grinding - 0.074 mm is 60%, the flotation time is 1.5 min, the inhibitor dosage is 11.09 kg/t, and the collector dosage is 1.0 kg/t, the P2O5 grade can be obtained. 32.23%, P2O5 recovery rate of 86.86% of phosphate concentrate. The contact angle measurement results show that the flotation performance of the new collector BY-1 is better than that of the existing collector WF-1. Ganshunpeng synthesized dolomite collector MG is a modified fatty acid salt. The infrared spectrum measurement reflects that its molecular structure contains a carboxylic acid group (a COOH) and a hydroxyl group (an OH). When dolomite in flotation of phosphate rock, it has the advantages of strong harvesting ability and good selectivity compared with traditional agents. Yan et al. conducted a dephosphorization dephosphorization trial of phosphate rock using a series of cationic amine collectors 605G83, 605G91 and 605G94 developed by Georgia-Pacific Chemical Company. The results show that it is strong in dephosphorization and anti-flotation of phosphate rock. The advantages. GE-609 is a new type of high-efficiency cationic desiliconization collector developed by Wuhan University of Technology. The collector has the characteristics of good selectivity, strong harvesting ability, low temperature resistance, and fragile flotation. Ge Yingyong and other researches have found that the use of anion collector MG anti-floating magnesium, cationic collector GE-609 anti-floating silicon double reverse flotation process to treat low-grade colloidal phosphate is better, and can greatly increase phosphorus concentrate. P2O5 grade. Yang Song et al. disclose a deposition type silicic calcium phosphate rock desiliconization collector, a preparation method thereof and a use method thereof, the desiliconization collector LF is a bis-acid surfactant, a carbon chain length C10~C22, and a preparation process Simple, low cost and excellent biodegradability. BK430 primary flotation aluminosilicate minerals, quartz is also collecting capacity. Li Songqing et al. conducted an experimental study on the application of BK430 in reverse flotation desiliconization in a high silica phosphate rock. The results show that under acidic conditions, the fineness of grinding is -74 μm, accounting for 55%. BK430 is used as the desiliconization collector. The crude concentrate of the reverse ore flotation of the ore is subjected to a rough selection five times. In the flotation process, a phosphorus concentrate containing 30.39% of P2O5 and 12.79% of SiO2 can be obtained, and the recovery rate of P2O5 is 92.70%. Inhibitor CD is a highly hydrophilic hydroxycarboxylic acid substance. In the process of positive and negative flotation of a silicic calcium phosphate rock, Zhao Jing et al used CD as a carbonate inhibitor in the positive flotation operation. It can remove a part of carbonate impurities better, so that the magnesium removal rate of the concentrate is increased from 6.49% to 21.98%, the amount of reverse flotation agent is reduced, and the foam property of the reverse flotation operation is improved, which is favorable for industrial production. Cai Bingyang et al. studied the flotation of a phosphate rock in Yunnan by high-mode water glass (m = 3.2) and low-mode water glass (m=2.3~2.5), comparing the results of flotation test and flotation of water glass. The chemical behavior analysis of the solution in the process explores the feasibility of the application of the low-mode water glass produced by the liquid-alkali process in the positive and negative flotation production of the phosphate rock. The test results show that although the high modulus and low mold water glass differ in modulus, sodium silicate mass fraction and solubility product of the formed metal silicate, it can be realized according to the theoretical calculation results of the flotation solution chemistry theory. Under the same dosage, the ability to adjust the pH of the solution and inhibit the gangue is basically the same. According to the nature of a high-magnesium phosphate rock, Luo Huihua used a reverse flotation process to treat the phosphate rock. The inhibitory performance of two different reverse flotation inhibitors PT-4 and phosphoric acid was compared. The results showed that the sorting effect of PT-4 was better. The flotation grade of the reverse flotation inhibitor was P2O5 27.52%, MgO. When 6.03% of the ore is obtained, the obtained concentrate index is 34.52% of P2O5 grade and 97.71% of P205 recovery rate, which realizes effective separation of target mineral and gangue mineral. Luo Huihua et al. also carried out different inhibition experiments on carbonate-type phosphorites in Mabian, Sichuan. The results showed that in the sulfuric acid inhibition method, the phosphoric acid and sulfuric acid mixed acid inhibition method and the high-efficiency reverse flotation inhibitor W-98 combined with sulfuric acid suppression method. The high-efficiency reverse flotation inhibitor W-98 combined with the sulfuric acid suppression method has a better sorting effect, while the sulfuric acid suppression method has the lowest dressing cost. Yang Zhongquan et al. introduced the application of WFS modifier in the Yanfu Phosphorus ore dressing plant. The application results show that the P2O5 mass fraction in the phosphate concentrate product is slightly higher when the WFS is used as the adjusting agent and the concentrated sulfuric acid (98% H2SO4) is used as the adjusting agent when the grade of the ore ore is not changed much. WFS is an industrial waste used as a phosphate flotation flotation regulator. The foam is not sticky, the slurry has good fluidity, and the calciumation of the flotation equipment is greatly reduced. The use of WFS adjuster greatly saves production costs for the concentrator. And effectively reduce the environmental pollution of phosphorus chemical companies. Yu Jun et al. based on the characteristics of a phosphate rock in Hubei Province, using the wet-process phosphoric acid by-product fluorosilicic acid as a phosphorus mineral inhibitor for flotation experiments. The results show that fluorosilicic acid is a phosphorus mineral inhibitor with good selective inhibition effect. . When the grade of P2O5 of raw ore is 17.36% and the mass fractions of SiO2 and MgO are 30.60% and 4.43%, respectively, the P2O5 grade of concentrate is 32.50%, the recovery rate is 86.25%, and the quality of harmful component MgO is obtained after positive and negative flotation closed-circuit test. The score is only a good indicator of 0.64%. Liang Yongzhong and Luo Lianming's research group used plant extracts as raw materials to process an environmentally friendly carbonate inhibitor YY1. The agent not only has a significant inhibitory effect on carbonates such as dolomite, but also has a certain synergistic effect on the collector, which can improve the collecting ability of the collector. A phosphate mine in Yunnan added a good selection index after adding YYl in the positive flotation. Xu Zhongfa et al. conducted a reverse flotation test on a phosphate rock in Sichuan. Using the original inhibitor H2SO4, the P2O535.28% of phosphorus concentrate, 0.87% of MgO, and the recovery rate of 71.98% were obtained. H2SO4 and TXZ were used as compound inhibition. The agent can obtain the phosphorus concentrate P2O5 34.11%, MgO 0.92%, the recovery rate of 81.59%, the recovery rate is 9.61% higher. Obviously, the H2SO4 and TXZ compounding inhibitors are better than the single use H2SO4 as the inhibitor. . In addition, extending the sweeping time can improve the quality of the concentrate. 3. Other mineral processing chemicals In order to reduce the amount of sodium carbonate which is the flotation pH adjuster of the phosphate rock, and at the same time effectively adjust the properties of the slurry and improve the flotation performance, Luo Huihua and others used sodium phosphate or calcium oxide as a test sample to carry out sodium carbonate or calcium oxide combined with carbonic acid. Sodium flotation test to adjust the properties of the slurry. The results show that the flotation effect of sodium hydroxide and calcium oxide alone as a regulator is poor, and sodium carbonate can be used as a regulator to improve the flotation effect; when the ratio of sodium hydroxide to sodium carbonate is 1..3 When the dosage (4.0 kg/t) is used as the pH adjuster, the ore dressing index is 18.58% of the concentrate grade, the recovery rate is 91.64%, and the beneficiation efficiency is 18.18%, which is better than when sodium carbonate is used alone (the dosage is 6~7.0 kg/t). The ore dressing index, the former's dosage is low, so the cost of chemicals in the beneficiation process will be reduced. In industrial production, sodium carbonate and sodium hydroxide can be used as a slurry pH adjuster. In order to investigate the sorting effect of several collectors, solubilizers, co-solvents and inhibitors for reverse flotation of phosphate rock, Li Intelli et al. conducted a single reverse flotation comparison test with Guizhou Pan'an phosphate ore sample. The results showed that among the several collectors compared, the reverse flotation separation of WF-01 collector was the best. At the same time, adding proper amount of solubilizer or cosolvent such as polysorbate and urea is beneficial to improve the solubility of the collector and improve the effect of reverse flotation separation. In a comparative experiment using phosphoric acid and sulfuric acid as inhibitors, it was found that phosphoric acid inhibited phosphate minerals better than sulfuric acid under the same conditions, but the cost was higher than that of sulfuric acid. A phosphate rock mine in Hubei is difficult to select phosphate ore. Liu Yangchun and others used the phosphate rock as the flotation test object, and the oleic acid soap was used as the main collector, and the synergistic surfactant was used for the flotation test. The results show that the combination of anionic surfactant and nonionic surfactant added to the fatty acid collector can significantly improve the grade and recovery of the phosphate concentrate, and coarsely select the phosphate rock with a ore grade of 21.76%. The grade of phosphate concentrate can reach more than 27%, and the recovery rate is over 91.5%. Deng Guiju et al studied the role of CF-ZP01 surfactant in the flotation process of phosphate rock. The results show that the surfactant has strong activation performance and can enhance the collection performance and selection performance of the collector YP2-3. In the process of flotation of phosphate rock, 0.05 kg of surfactant is added through the ore ore, and the ore is ore. The amount of collector can be reduced by 0.5 kg, and qualified phosphorus concentrate with w(P2 05) 28.18% and w(MgO) 0.86% can be obtained, and the concentrate yield is 72.17%. Wang Renzong et al. disclosed a phosphate rock grinding aid: 60-80 parts of triethanolamine and 20-40 parts of polyacrylate, which were prepared by mixing the above raw materials in a mixing tank. The grinding aid can increase the processing capacity of the phosphate rock mill by 15%~30% according to the ratio of 0.05%~0.2% of the ore quality, improve the fineness and increase the processing capacity of the mill. The high-phosphorus-like hematite in western Hubei has very high viscosity during fine-grain grinding, which seriously affects the grinding efficiency and leads to a significant increase in grinding energy consumption. Li Maolin and others used the grinding aid sodium hexametaphosphate and sodium tripolyphosphate to conduct the viscosity-reducing grinding test on the high-phosphorus-like hematite in western Hubei. The results show that the addition of two grinding aids can reduce the viscosity of the slurry. When the amount of grinding aid is 0.2%, the viscosity reduction and grinding effect are the best. The grinding aid makes the ball mill 's production capacity significantly improved. Up to 144%, the grinding time is 5 min, the best grinding effect. After adding the grinding aid, the particle size fraction of the grinding product with particle size less than 38 μm is obviously increased. Both grinding aids can effectively reduce the energy consumption of grinding, and the maximum energy consumption decreases by 57.14%. Liu Lifen et al. used a double reverse flotation process for a high-magnesium and low-grade phosphate rock in a certain area. On the basis of demagnetization, a small amount of desiliconization synergist was added to enhance the hydrophobicity of silicate impurities and improve the silicate. The floatability of the impurities, the P2O5 grade of the concentrate can be increased from 25.0% to more than 28.0%, which can meet the requirements of the acid method, and provides a reliable basis for the development and utilization of the mine. In this serie, it contains all of our curtainsider truck tensioners. We have two types, one is suiting for all sides, the other type is distinguishing between left and right sides. Tensioner is absolutely necessary for the truck curtains' opening and closing. We also have other products for the truck curtains, like the overcenter buckle set, rollers, sliding rails and other hardwares. Also we can assemble all the hardwares on the tarpaulin so you can buy it as a whole set. 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The key is to improve the system of rational drug flotation technology indicators, efficient flotation new agents could significantly promote the development and utilization of mineral stone complex and difficult. In recent years, phosphorus ore beneficiation workers carried out a lot of work in the application of new collectors and new inhibitors of research and development. The research of flotation reagents mainly includes the development of new collectors and inhibitors, the investigation of flotation performance, the application of compound or mixed medicaments and the analysis of the mechanism of action of pesticides. A large number of highly efficient flotation phosphorus minerals have emerged. Collecting agents for flotation, flotation of carbonate minerals, and collectors for flotation of siliceous minerals have also been studied for the inhibition of a number of inhibitors of phosphorus minerals, inhibitors of carbonate minerals, and siliceous minerals. Agents, the results in the study of low temperature reagents at room temperature are also significant, and the research methods and means are also becoming more and more perfect. At the same time, adjusting or optimizing the flotation reagent program plays an increasingly important role in improving the phosphate rock sorting technical indicators. The research on other types of mineral processing chemicals is relatively less, mainly focusing on solubilizers, cosolvents, synergists, other surfactants and other additives and grinding aids.