The mineral composition of the antimony ore is complex and difficult to sort. It is often necessary to obtain concentrates by one or two or more methods of magnetic separation, re-election, flotation re-election, flotation, electro-election, and chemical treatment. The actual sorting tantalum and niobium to re-election law in the majority, stage grinding, stage separation is tantalum and niobium ore re-election process of the body. However, the re-election method is not ideal for the treatment of fine mud in the ore, and it is impossible to comprehensively recover all the useful minerals in the ore. A considerable part of the useful minerals is lost in the fine mud. The flotation method is an effective way to recover the fine mud. Tantalum ore flotation is mainly focused on efficient flotation agent, we need to be resolved is collecting capability and selectivity issue of collector. Chelating collectors such as hydroxamic acid have attracted attention as excellent collectors with high selectivity and strong harvesting power, showing good application prospects. In recent years, Yankuang mineral processing technology has made certain progress in technology, equipment and pharmaceuticals.

Recycling of fine-grained strontium minerals by re-election method tends to have very low ore beneficiation efficiency. For fine-grained ore beneficiation, Dong Tianyi and Gao Yude et al. proposed a new process for the recovery of fine-grained antimony ore by magnetic separation-flotation. This process is an effective process for fine-grained antimony ore. The process uses a wet high gradient magnetic separator to pre-discard more than 70% of the low-grade tailings, and then combines the benzene hydroxamic acid with the auxiliary collector WT2 to flocculate the fine-grained antimony ore. When the flotation is given to the ore grade Ta2O5 0.02 %, the flotation concentrate with the grade Ta2O5 0.08% and the recovery rate of 88.45% can be obtained, which basically solves the technical problem of fine-grained antimony ore recovery. The flotation concentrate was further separated by a weak magnetic-flotation-re-election method to obtain a tantalum concentrate of grade Ta2O513.5%. According to the nature of the ore, it is proposed to remove the iron impurities in the coarse concentrate by weak magnetic separation for the 14# and 31# ore of Nanping antimony ore, and then select the antimony concentrate by strong magnetic separation, and the non-magnetic products are re-elected. Flotation recovery treatment, producing feldspar concentrate and mica mixed concentrate. The test results show that the mineral processing index basically meets the design requirements. Tu Chungen conducted an optional test on the Ray Mine in Africa, and proposed a two-stage grinding and stage selection process for the ore's ore properties, and obtained a good index of 65%-80% concentrate recovery rate, in order to further improve For the grade of antimony concentrate, it is considered to carry out comprehensive recovery of concentrates by using selective processes such as strong magnetism. Qiu Dejun and Chen Mingxing proposed the shortcomings in the production process of Yichun antimony mine: improved the grinding process by using two-stage grading technology, improving the grinding process, the mineral ore dressing in the sputum and the minerals in the sputum mixing, and improved the selection. effect. Ouyang Huilin proposed to use the C902 industrial composite force field concentrator to select the secondary fine mud of Yichun antimony ore. The test shows that when the treatment volume is 500-700kg/set·h, the recovery rate is as high as 59.91%, and the enrichment ratio is 3.27. The selection index is much higher than the spiral chute selection index. The final recovery rate of Yichunjing concentrate is less than 50%, useful mineral brittle, easy to pulverize, loss of -0.038mm micro-fine fraction accounted for more than 25%, general gravity method is difficult to recover, and proposed to use Slon vertical ring high gradient magnetic The machine is used to treat tailings recovery. When the background field is emphasized to 1.108T, the recovery rate can reach more than 27%, but the final qualified concentrate cannot be obtained by using this equipment for single operation. Qiu Dejun, Feng Guofu applied a spiral chute to carry out the rough selection recovery test. The crude concentrate with a grade of 2.24% was obtained from the raw ore of 0.019% grade, and the recovery rate was 47.51%. Ding Yong studied the surface electrical properties of fine ore particles and the surface of the bed, and used the effect of sorting on them to make a separate industrial test using a self-made wave bed of a new material, -0.038 The recovery rate of the mm grade bismuth concentrate was 61.75%.

In recent years, Gao Yude et al. conducted in-depth mineral processing experiments on alkaline granite -type cerium-zirconium deposits and made great progress. A large-scale alkaline granite-type cerium-zirconium deposit in North Korea, mainly used in minerals such as 钍 -铌, 钽铌, 钽铌, 锆, 锆, 独, 独, 独 、 独 独 独 嵌 嵌 嵌 嵌 嵌 嵌 嵌 嵌 嵌 嵌 嵌 嵌 嵌, thorium - form with or close mutual relationship between Nb intergrown aeschynite, monazite, zircon and other useful minerals feldspar, quartz and mica, poor dissociated from each other. The useful minerals in the ore are complex, the size of the inlay is fine, and the physical properties vary greatly. Most of the heavy minerals are magnetic. Especially the zircon contains a large amount of iron, which causes the magnetic change to be great. The useful mineral can float. Similarity, it brings great difficulties to the enrichment and separation of minerals. It is difficult to obtain qualified bismuth and zirconium products by re-election, magnetic separation and flotation methods. The recovery rate is low, and the cerium-zirconium mixed flotation can greatly improve the comprehensive recovery rate. using metallurgical method further separation. The ore is treated by a fine grinding-de-sludge-zirconium-mixed flotation process. The Nb2O5, ZrO2, and Ta2O5 grades are obtained under the conditions of 1.17%, 3.12%, and 0.046% of the original ore Nb2O5, ZrO2, and Ta2O5, respectively. 9.43%, 24.95%, 0.36%, the recovery rates were 77.37%, 76.77%, and 75.13% of the cerium-zirconium mixed concentrate. Xinjiang a large granite type alkaline deposit tantalum and niobium zirconium, tantalum and niobium ore minerals are columbite, pyrochlore, and a small amount of mineral fergusonite; more rare earth mineral species, respectively, a rare earth metal phosphates, carbonates fluorine, fluoride, silicate, mainly as monazite, bastnaesite, xenotime followed, fluoro cerium ore, calcium fluoride, sodium yttrium stone, calcium silicate stone yttrium; zirconium minerals zircon; metal sulfide mineral content few, there pyrite, copper ore, sphalerite and arsenopyrite; iron-titanium mineral magnetite, ilmenite, anatase, limonite; gangue minerals albite, K-feldspar Stone, followed by quartz, biotite, lithium mica, neon, sodium iron amphibole. Useful mineral inlays are fine-grained. For this type of fine-grain low-grade strontium rare earth ore, a joint process of "magnetic separation-re-election" was researched and developed. When the ore is containing (Ta+Nb)2O5 0.032% and REO 0.092%, the whole process test can obtain cerium rare earth concentrate containing (Ta+Nb)2O5 3.444% and REO 12.851%, and the recovery rate (Ta+Nb) 2O5 44.13%, REO 57.27%.

The extensive application of antimony ore, the lack of resources and fine-grained inlays promote the research on the theory and practice of alfalfa flotation. Gao Yude et al. used benzyl hydroxamic acid, C7-9 hydroxamic acid and oleic acid as collectors to study the floatability of antimony ore, quartz and feldspar. The results showed that the capture ability of sulphuric acid, C7-9 hydroxamic acid and oleic acid on the antimony ore changed significantly with the change of pH value of the pulp. The optimum pH range of benzyl hydroxamic acid flotation strontium ore is 6.0-10.0, and the optimum pH range of C7-9 hydroxamic acid flotation strontium ore is 7.0-10.0, oleic acid flotation The optimum pH range is 6.0-9.0. Benzohydroxamic acid has a strong ability to capture antimony ore. The capture and selectivity of C7-9 hydroxamic acid is less than that of benzyl hydroxamic acid. The recovery of oleic acid is strong but the selectivity is poor. Ren et al. studied the benzyl phthalic acid, styrene phosphonic acid, bisphosphonic acid, cycloalkyl hydroxamic acid, C7-9 alkyl hydroxamic acid at different pH values ​​and different dosages. The collection effect of granule minerals. The selective sorting of several collectors is: bisphosphonic acid > benzyl decanoic acid > styrene phosphonic acid > C7-9 alkyl hydroxamic acid > cycloalkyl hydroxamic acid. Their ability to capture barium calcium ore is ranked as: cycloalkyl hydroxamic acid > C7-9 alkyl hydroxamethylene > bisphosphonic acid > styrene phosphonic acid > benzyl decanoic acid. The test results show that bisphosphonic acid is a good collector of barium calcium ore, and the recovery rate of barium calcium ore is more than 83.27% when the amount of bisphosphonic acid is 200mg/L and the pH of the pulp is 2.5-5.0. The Araxa plant has achieved good results by flotation of pyrochlore with an amine collector. Xu Xiaoping and others studied the selectivity of several different combinations of collectors for fine antimony ore. The test results show that the new chelate collector HFA developed by Guangzhou Institute of Nonferrous Metals and an auxiliary collector HFB combination Under the condition of weak alkaline medium, the best effect on the recovery of antimony minerals. Ren et al. carried out flotation research on the fine-grained strontium-calcium ore and its main gangue minerals in Bayan Obo. The results showed that starch inhibited strontium ore in the limestone ore and could be used to re-float from coarsely selected concentrate. The limonite is removed. Sodium hexametaphosphate, oxalic acid and carboxymethylcellulose can selectively inhibit dolomite. The order of selective inhibition is: sodium hexametaphosphate > carboxymethyl cellulose > oxalic acid. When the amount of sodium hexametaphosphate is 1.0 mg/L, the dolomite floating rate drops below 3.0%. Carboxymethylcellulose has no inhibitory effect on barium calcium ore, and oxalic acid selectivity is relatively poor. The Institute of Mineral Processing Engineering of Guangzhou Nonferrous Metal Research Institute studied the ore of the shallow ore section of the Geyuanyu Mine in Hengfeng, Jiangxi Province. Based on the fine grain size of the mineral deposit, the coarse grain re-election fine flotation was developed. Two rough selection test schemes for heavy-floating process and full-floating process. The test results show that the heavy-floating process reduces the amount of flotation by 47.6% due to the use of re-selected tailings for de-sludge, mud-floating and coarse-grain tailings, which greatly reduces the cost of ore dressing. - The recovery rate of the floating process is 4.22% higher than that of the full floating process. The concentrate yield was 0.00278%, the (TaNb)2O5 grade was 53.61%, and the (TaNb)2O5 recovery was 44.4891%. The institute also studied the deep sodium-long petrochemical granite ore of the mine, and proposed a two-stage re-election and fine mud flotation process. The re-election of the coarse concentrate was carried out using a float-heavy-magnetic-electrical selection process to obtain comprehensive indicators. The yield of bismuth concentrate is 0.00354%, the grade of (TaNb)2O5 is 61.38% (the grade of Ta2O5 is 18.66%), and the recovery rate is 65.9215%. Considering the comprehensive recovery of useful minerals, the tailings are separated by magnetic separation to obtain iron-lithium mica products with a Li2O grade of 1.34% and a Rb2O grade of 0.40%, and a quartz-feldspar product with a K2O+Na2O content of 8.98%. The well-known Dajishan tungsten mine 69# ore body is rich in strontium resources. In recent years, the Guangzhou Institute of Nonferrous Metals Research Institute and the Zhangzhou Nonferrous Metal Research Institute have carried out detailed beneficiation process research on the strontium tungsten ore body. Based on the optimization of the small test and the expansion of the test results, in 2004, the Guangzhou Institute of Nonferrous Metals Technology was responsible for the project. The Zhangzhou Nonferrous Metal Research Institute and the Dajishan Tungsten Mine jointly completed the national “Tenth Five-Year” scientific and technological research project “Dajishanyu tungsten mine. Industrial testing of high-efficiency beneficiation new processes and new pharmaceutical research. In view of the characteristics of process minerals such as low grade ore of ore, uneven grain size, large variety of minerals and complex nature, the selection of stage grinding stage, coarse grain re-election, flotation of fine mud flotation combined with selection of metallurgy The new process of sorting. The test results show that the recovery rates of tantalum and tungsten are about 51% and 83% respectively, which is more than 3 percentage points and 7 percentage points higher than the expected target. The Institute of Mineral Processing Engineering of Guangzhou Nonferrous Metals Research Institute conducted a study on a Yankuang mine in Zhaoqing, and developed a section of rod mill and fine screen to form a closed circuit, and used a heavy-magnetic-heavy combined process to recover helium. After the coarse grain was re-elected and the medium ore was re-grinded, the SSS-I type magnetic machine developed by the Institute of Mineral Processing Engineering of Guangzhou Nonferrous Metal Research Institute was used to recover the strontium mineral from the tailings and selected by the shaker. Better industrial indicators.

Tailings is a secondary resource that should be developed and utilized to comprehensively recover valuable metals from tailings. He Shuzheng comprehensive recovery of the tailings mine, it is proposed that: +74μm grain minerals use 80%-90% tailings lost by rotating spiral chute, and the produced coarse concentrate is separated by wet magnetic separator to produce niobium minerals. Antimony concentrate and tin concentrate; -74μm size minerals are separated by high-gradient magnetic separator to remove antimony minerals, coarse concentrates are obtained by flotation to obtain antimony concentrates, and magnetic separation tailings are then flotation to obtain tin concentrates. mine. According to the expert's argument, the Baiyun Obo 铌 resources determined that the ferromagnetic-strong magnetic-flotation process in the weak magnetic medium-mine flotation rare earth tailings was used as the raw material for comprehensive recovery of the poor oxidized ore resources, and the flotation was mainly used for flotation. - (Magnetic separation) process, not only the beneficiation recovery, but also the recovery of iron, so that the recovery rate of the ore-poor iron ore beneficiation in Baiyun Obo is increased by 2%-3%. In addition, the residual rare earth in the thin tail floats into the easy-floating foam product, the grade reaches about REO15%, and the REO is more than 30% after one shaker, and the rare earth concentrate with REO greater than 50% can be obtained by further flotation. Jiangxi Yichun Antimony Mine comprehensively recovers more than 40,000 tons of lithium mica per year from the ore selected ore and more than 200,000 tons of feldspar products. Nanping Antimony Mine, through the SSS-I strong magnetic machine developed by the Institute of Mineral Processing Engineering of Guangzhou Nonferrous Metal Research Institute, removes iron-containing minerals and removes fine mud, which can produce 15,000 tons of feldspar products per year.

Flange Dredging Hose

Flange Dredging Hose,Flanged Hose,Flanged Flex Hose,Hose Flange

Hebei no one but god energy equipment co.,ltd , https://www.p-harcourtbrothers.com