- PII
- S30345391S0869573325028896-1
- DOI
- 10.7868/S3034539125028896
- Publication type
- Article
- Status
- Published
- Authors
- Volume/ Edition
- Volume / Issue number 2
- Pages
- 88
- Abstract
- Selective extraction of copper and aluminum from oxidized copper ores has been studied. It includes the following stages: 1) autoclave leaching of the starting material with 5% solution of (NH)SO; 2) separation of the soluble copper complex [Cu(NH)] from the aluminosilicate residue; 3) mixing the moistened residue with concentrated sulfuric acid; 4) sulfatizing roasting; 5) leaching of the sulfated mass with water. During autoclave leaching, copper passes into solution in the form of a complex compound [Cu(NH)] separating from a number of elements (Fe, Ca, Mg, Al, Si). During sulfatization, aluminosilicate minerals (feldspar, kaolin, illite and goethite) decompose and pass into the corresponding sulfate compounds. In this case, unstable sulfates, mainly iron (III) sulfate, decompose to the corresponding oxide, and aluminum remains in the form of sulfate Al(SO). As a result of leaching of the sulfated mass with water, iron and silicon oxides remain in the residue, and aluminum passes into solution. The change in the mineralogical composition of the initial and sulfated ore mass was studied using DTA/TG, X-ray diffraction, and SEM/EDS analysis.
- Keywords
- автоклавное выщелачивание сульфат алюминия медь сульфатизирующий обжиг серная кислота алюминий
- Date of publication
- 01.04.2025
- Year of publication
- 2025
- Number of purchasers
- 0
- Views
- 23
References
- 1. Aksenov, A.V. Heap leaching of copper from oxidized ores. Features of the process in relation to Russian climatic conditions / A.V. Aksenov, A.A. Vasiliev, A.G. Nikitinko // Chemistry and metallurgy. Bul. Ir STU. 2014. №1(84), P.72–75.
- 2. Zhou W. Extraction and separation of copper and iron from copper smelting slas: A rewiew / Zhou W., Liu X., Lyu X., Gao W., Su H, Li Ch. // J. Cleaner Prod. 2022. V.368(2–3). Art.13309.
- 3. Tagijev, E.I. Technology of complex processing without waste of alunite ores / E.I. Tagijev. –Baku: Elm, 2006. 504 p.
- 4. Khomekulov, D.B. Study on copper extraction from oxidized ores of JSC Almalyk MMC by agitated sulfuric acid leaching / D.B. Khomekulov, B.E. Niyazmetov, A.N. Bekbutaev, B.G. Gayratov // Universum: Techn. Sci.: Electronic. Scientific. J. 2022. V.1(94).
- 5. Chanturia, V.A. Development of physical and chemical foundations and development of innovative technologies for deep processing of technogenic mineral raw materials / V.A. Chanturia, A.P. Kozlov // Mining journal. 2014. №7. P.79–84.
- 6. Liu M. Experimental studies and pilot plant tests for acid leaching of low-grade copper oxide ores at Tuwu Copper Mine / Liu M., Wen J., Tan G., Liu G., Wu B. // Hydrometallurgy. 2016.
- 7. Quast, K.B. Leaching of atakamite (Cu2(OH)3Cl) using dilute sulphuric acid / K.B. Quast // Miner. Eng. 2000. V.13, 14–15, P.1647–1652.
- 8. Sinyaver, B.V. Hydrometallurgy of copper (Foreign experience) / B.V. Sinyaver, A.A. Zeidler. – M.: Tsvetmetinformation, 1971. 112 p.
- 9. Karavaiko, G.I. Biogeotechnology of metals. Practical guide / G.I. Karavaiko [et al.]. – M.: Center of international projects of the State Committee on Science and Technology. 1989. 375 p.
- 10. Naboychenko, S.S. Autoclave sulfuric acid leaching of chalcocite concentrate from the Erdenet deposit. News of the universities / S.S. Naboychenko, M. Dorzhpurev // Non-ferrous metallurgy. 1982. №6. P.29–31.
- 11. Golovka, E.A. Chemical and bacterial leaching of copper-nickel ores / E.A. Golovka, A.K. Rosenthal, [et al.]. – Leningrad: Science. 1978. 199 p.
- 12. Vanyukov, A.V. Complex processing of copper and nickel raw materials / A.V. Vanyukov, N.I. Utkin. – Chelyabinsk: Metallurgy, 1982. 432 p.
- 13. Burra, C.R. Selektive recovery of rare earths irom bauxite residue by combination of sulfation, roasting and leaching / C.R. Burra, J. Mermans, B. Blampain, Y. Puntikes, K. Binnemans, T.V. Gerven // Miner. Eng. 2016. V.92. P.150–159.
- 14. Xueyi G. Leaching behavior or metals from a limonitic nickel laterite using a sulfation-roasting-leaching process / Xueyi G., Dong Li, Kyung-Ho P., Qrughua T., Zhan W. // Hydrometallurgy. 2009. V.99. P.144–150.
- 15. Kar, B.B. Some aspects of nickel extraction from chromitiferous over burden by sulphation roasting / B.B. Kar, Y.V. Swamy // Miner. Eng. 2000. V.13. №14–15. P.1635–1640.
- 16. Nicolas, Z. Promotion agents in the sulphation of oxidized nickel and cobalt bearing ores / Z. Nicolas, J.I. David, E. Mackiw, V. Nicolaus. Pat. US 3367740A. 1968.
- 17. Swamy, Y.V. Physico-chemical characterization and sulphatization roasting of low-qrade nickeliferous laterites / Y.V. Swamy, B.B. Kar, J.K. Muhanty // Hydrometallurgy. 2003. V.69. P.89–98.
- 18. Heydarov, A.A. Investigation of sulphatization of pyrrotinized materials from Filizchay ores by sulfuric acid / A.A. Heydarov, M.M. Akhmedov, M.A. Kerimov, B.S. Valiyev, S.G. Efendiyeva // Azerb. Chem. J. 2009. V.3. P.85–91.
- 19. Huertas, F.G. Mechanism of kaolinite dissolution at room temperature and pressure Part: Kinetic study / F.G. Huertas, L. Chou, R. Wollast // Geochim Cosmochim Acta, 1999. V.63. №19–20. P.3261–3275.
- 20. Coner, J. The effect of pH on kaolinite dissolution rates and on activation energy / J. Coner, J.L. Mogollan, A.C. Lasaga // Geochim Cosmochim Acta. 1995. V.59. №6. P.1037–1052
- 21. Karimov, M.A. Research of sulfatizing roasting of pyrrotinized Filizchay polymetallic ore by physical-chemical analysis methods / M.A. Karimov, A.A. Geydarov, M.M. Akhmedov, S.G. Efendiyeva, B.S. Valiyev // Azerb. Chem. J. 2009. V.4. P.43–47.
- 22. Tagawa, H. Thermal decomposition temperatures of metal sulfates / H. Tagawa // Thermochim. Acta. 1984. V.80. P.23–33.
- 23. Inorganic Chemistry: in 3 v. edited by Yu.D. Tretyakov. V.2. Chemistry of non-transition elements. – Moscow: Publishing Center «Academy», 2004. 368 p.
