Current Status of Copper-Ore Processing: A Review
Tóm tắt
An analysis of flowsheets for processing sulfide and oxide copper ores, reagent modes, processing equipment, and flotation indicators in some domestic and foreign processing plants and productions is carried out. Autogenous and semiautogenous mills are commonly used in the primary grinding stage in ore processing plants, which excludes medium and fine crushing. The alternative is high-pressure grinding rolls, which can reduce electricity consumption compared with autogenous and semiautogenous grinding. An increase in the use of large-volume and high-performance ore-processing flotation equipment to maintain the quality and quantity of the product is noted. In addition to ball mills, fine- and ultra-fine-grinding mills in different configurations are widely used in the regrinding stage of the rougher flotation concentrate. An analysis of the flotation reagents to increase the efficiency of the separation process is made, where domestic and foreign approaches to the selection of flotation reagents are given. It should be noted that the combination of primary and secondary collectors is often used in foreign processing plants. Flotation reagents used in the processing of copper sulfide and oxide ores and their costs are presented. The combined circuit of flotation-hydrometallurgical processing of mixed copper ore at the Udokan deposit is considered. The conclusions reveal the current trends in the processing of copper ores, including the choice of equipment.
Tài liệu tham khảo
The IWCC Statistical Bulletin. http://www.coppercouncil.org/iwcc-statisticsand-data. Accessed November 3, 2020.
LME Copper. https://www.lme.com/en-GB/Metals/Nonferrous/Copper#tabIndex=0. Accessed November 3, 2020.
Baranov, V.F., The use of foreign experience in the development of a reconstruction option for the Zhezkazgan concentration complex, Obogashch. Rud, 2020, no. 1, pp. 54–59.
Avdokhin, V.M., Osnovy obogashcheniya poleznykh iskopaemykh. Uchebnoe posobie dlya vuzov (Fundamentals of Mineral Processing. Student’s Book for Institutions of Higher Education), vol. 2: Tekhnologii obogashcheniya poleznykh iskopaemykh (Mineral Processing Technologies), Moscow: Gornaya Kniga, 2017.
Kurchukov, A.M., The control algorithm reagent conditions of flotation copper-nickel ores on the basis of optimizing the ionic parameters, J. Min. Inst., 2011, vol. 189, pp. 292–294.
Boduen, A.Ya., Ivanov, B.S., and Ukraintsev, I.V., Copper concentration from sulfide ore: State-of-the art and prospects, Non-Ferrous Met. (Moscow, Russ. Fed.), 2015, no. 1, pp. 17–20.
Ivanov, B.S., Boduen, A.Ya., and Petrov, G.V., Russian pyrite copper-zinc ores: Processing problems and technological prospects, Obogashch. Rud, 2014, no. 3, pp. 7–13.
Santo Domingo Technical Report, January 2019. https://capstonemining.com/operations/santo-domingo/ default.aspx. Accessed November 2, 2020.
ICSG Releases the 2019 Directory of Copper and Copper Alloy Fabricators, The International Copper Study Group (ICSG). https://capstonemining.com/operations/santo-domingo/default.aspx. Accessed January 10, 2020.
Minera Tres Valles. https://mineratresvalles.com/. Accessed October 28, 2020.
Yushina, T.I., Purev, B., D’Eliya Yanes, K.S., and Namuungerel, B., Increasing the efficiency of flotation of porphyry copper ores using additional collectors based on acetylene alcohols, Materialy Mezhdunarodnogo soveshchaniya “Problemy i perspektivy effektivnoi pererabotki mineral’nogo syr’ya v 21 veke (Plaksinskie chteniya-2019)”, Irkutsk, 9–14 sentyabrya 2019 g. (Proc. Int. Conference “Problems and Prospects for Effective Processing of Mineral Raw Materials in the 21st Century (Plaksin Readings-2019)”, Irkutsk, September 9–14, 2019), Irkutsk: Reprocentr A1, 2019, pp. 140–144.
Kondrat'ev, S.A., Moshkin, N.P., and Konovalov, I.A., Collecting ability of easily desorbed xanthates, J. Min. Sci., 2015, vol. 51, no. 4, pp. 830–838.
Kondrat’ev, S.A., Moshkin, N.P., and Burdakova, E.A., Optimized activity ratio for different types of reagent attachment at sulfide minerals, J. Min. Sci., 2015, vol. 51, no. 5, pp. 1021–1028.
Post-Event Press Release of Conference “Flotation Reagents 2017”. https://chem.ru/nauka-i-tehnologiya/425-post-reliz-konferencii-flotacionnye-reagenty-2017.html. Accessed January 10, 2021.
Usmanova, N.F., Markosyan, S.M., Timoshenko, L.I., and Pasyuga, D.V., The use of a humate reagent as a depressant under the flotation of copper-nickel ores, Materialy Mezhdunarodnogo soveshchaniya “Problemy i perspektivy effektivnoi pererabotki mineral’nogo syr’ya v 21 veke (Plaksinskie chteniya-2019)”, Irkutsk, 9–14 sentyabrya 2019 g. (Proc. Int. Conference “Problems and Prospects for Effective Processing of Mineral Raw Materials in the 21st Century (Plaksin Readings-2019)”, Irkutsk, September 9–14, 2019), Irkutsk: Reprocentr A1, 2019, pp. 164–166.
Kostovic, M., Lazic, P., Vucinic, D., Deusic, S., and Tomanec, R., Factorial design of selective flotation of chalcopyrite from copper sulfides, J. Min. Sci., 2015, vol. 51, no. 2, pp. 380–388.
Zanin, M., Lambertc, H., and Du Plessisc, C.A., Lime use and functionality in sulphide mineral flotation: A review, Miner. Eng., 2019, no. 143, pp. 1–14.
Kienko, L.A. and Voronova, O.V., Selective flotation of fine-ingrained carbonate-fluorite ore in pulp of increased dispersion uniformity, J. Min. Sci., 2014, vol. 50, no. 1, pp. 176–181.
World's Largest Flotation Machines Increase Copper and Molybdenum Recovery in Mexico. OUTOTEC. https://www.outotec.ru/products-andservices/newsletters/minerva/minerva-vypusk-1-2019/samye-bolshie-flotomashiny-vmire-pozvolili-uvelichit-izvlechenie-medi-i-molibdena-v-meksike-/. Accessed January 10, 2020.
Column Flotation Machines - Maximize Extraction from Fine Minerals. OUTOTEC. https://www.outotec.ru/products-and-services/newsletters/minerva/minerva-3-2017/flotation-columns-getting-the-most-from-fine-ores/. Accessed January 10, 2020.
Nikolaeva, N.V., Romashev, A.O., Aleksandrova, T.N., and Fadina, A.V., Intensification of technologies for weakening and disintegration of polydisperse mineral complexes of different genesis with using mills Isamill, Gorn. Inf.-Anal. Byull., 2013, no. 10, pp. 97–101.
Increase of Flotation Recovery. https://www.isamill.com/ru/isamilladvantages/Pages/Improved-Flotation-Recovery.aspx. Accessed January 10, 2021.
Bergerman, M.G., De RennoMachado, L.C., Kronemberger, V., and Delboni, H., Jr., Copper concentrate regrind at Sossego Plant using vertical mill-An evaluation on the first years of operation, Proc. 26th Int. Mineral Processing Congress (IMPC), New Delhi, September 24–28, 2012, paper no. 298, pp. 00432–00441.
New Vertical Mills are being Commissioned at the TOF, Nornickel. https://www.nornickel.ru/news-and-media/press-releases-and-news/na-tof-vvodyatsyavekspluatatsiyu-novye-vertikalnye-melnitsy-/?dateStart= 1467320400&dateEnd=1469998799&type=news. Accessed January 9, 2020.
Kozhonov, A.K., Molmakova, M.S., and Duishonbaev, N.P., Identifying possible causes of problems in the dewatering of flotation products, Vestn. Magnitogorsk. Gos. Tekh. Univ. im. G.I. Nosova, 2018, vol. 16, no. 3, pp. 17–24.
Denisov, M.E., Rudnev, B.P., Krylova, L.N., and Kuchmina, Yu.S., Processing technology for Udokan copper ore with sulfuric-acid pre-leaching, Gorn. Inf.-Anal. Byull., 2015, no. 10, pp. 100–104.