Copper Smelting Fine Dust Autoclave Leaching

Abstract:

At present, arsenic content in copper concentrates is increasing, which leads to an increase in its content in all smelting products, the largest amount of arsenic is transferred in fine dust (dust composition,%: 10-12 Zn, 11-13 Pb, 8-15 Cu , 12-14 Fe, 5-10 As). Autoclaved leaching of dusts (temperature 160-200 °C, oxygen pressure 0.4-0.8 MPa, molar ratio H₂SO₄ /(Cu + Zn) = 0.75-2.25) to obtain a copper-zinc solution and a cake containing arsenic, iron and lead was studied. Copper extraction in the solution reaches 92%, zinc 95%. Lead, arsenic and iron are concentrated in the cake. Lead from cake is extracted by leaching in sodium chloride solution (temperature 60-70 ° C, NaCl concentration 300 g / dm³). The extraction of lead into the solution is 95%, subsequently lead is precipitated as lead carbonate.

• Periodical: Materials Science Forum (Volume 946)
• Pages: 615-620
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.946.615
• Online since: February 2019
• Authors: Anton Kovyazin*, Konstantin L. Timofeev, Sergey Krauhin
• Keywords: Arsenic, Autoclave Leaching, Dust, Dust Recycling, Lead Leaching

References

[1] А. Jarošíková, V. Ettler, M. Mihaljevič, P. Drahota, A. Culka, M. Racek, Characterization and pH-dependent environmental stability of arsenic trioxide-containing copper smelter flue dust. Journal of Environmental Management. 209 (2018) 71-80.

DOI: 10.1016/j.jenvman.2017.12.044

[2] А. Jarošíková, V. Ettler, M. Mihaljevič, V. Penížek, P. Drahota, Transformation of arsenic-rich copper smelter flue dust in contrasting soils: A 2-year field experiment. Environmental Pollution. 237 (2018) 83-92.

DOI: 10.1016/j.envpol.2018.02.028

[3] C. Lanzerstorfer, Flowability of various dusts collected from secondary copper smelter off-gas, Particuology. 25 (2016) 68-71.

DOI: 10.1016/j.partic.2015.05.003

[4] B.S. Ivanov, Т.А. Lytayeva, A.Ya. Baudouin, G.V. Petrov, M.A. Pashkevich., R.F. Patent 2588218 (2016).

[5] T. Havlik, В. Friedrich, S. Stopic, Pressure Leaching of EAF Dust with Sulphuric Acid , World of Metallurgy. ERZMETALL. 57(2) (2004) 113-120.

DOI: 10.1016/j.hydromet.2004.10.008

[6] J. Veres, S. Jakabsky, M. Lovas, Zinc recovery from iron and steel making wastes by conventional and microwave assisted leaching, Acta Montanistica Slovaca. 16(3) (2011) 185-191.

[7] V. Montenegro, H. Sano, T. Fujisawa, Recirculation of high arsenic content copper smelting dust to smelting and converting processes. Minerals Engineering. 49 (2013) 184-189.

DOI: 10.1016/j.mineng.2010.03.020

[8] T. Havlik, F. Kukurugya, D. Orac, L. Parilak, Acidic Leaching of EAF Steelmaking Dust, World of Metallurgy. ERZMETALL. 65 (2012) 48-56.

[9] A. Kekki, J. Aromaa, O. Forsén, Leaching behavior of five different stainless steel production dusts in sulphuric acid, Kammel's Quo Vadis Hydrometallurgy. 6 (2012) 86-92.

[10] V.G. Skopov, V.V. Belyaev, A.V. Matveev, Withdrawal from the market and a separate processing of the dust electrostatic precipitators smelting Vanyukov JSC Sredneuralskiy copper smelter,. Non-ferrous metals. 8 (2013) 55-59.

[11] D.B. Dreissinger, E. Peters, G. Morgan, The hydrometallurgical treatment of carbon steel electric arc dust by the UBC Chaparral process, Hydrometallurgy. 25(2) (1990) 137-152.

DOI: 10.1016/0304-386x(90)90035-z

[12] G.V. Skopov, A.V. Matveev, Co-processing of polymetallic semi-products of metallurgical production. Metallurg. 8 (2011) 73-76.

[13] Y. Chen, T. Liao, G. Li, B. Chen, X. Shi, Recovery of bismuth and arsenic from copper smelter flue dusts after copper and zinc extraction, Minerals Engineering. 39 (2012) 23-28.

DOI: 10.1016/j.mineng.2012.06.008

[14] L. Sarka, L. Juraj, M. Dalibor, Selective leaching of zinc from zinc ferrite with hydrochloric acid, Hydrometallurgy. 95(3-4) (2009) 179-182.

DOI: 10.1016/j.hydromet.2008.05.040

[15] B.Ya. Ivanov, A.C. Yaroslavtsev, G.N. Vanyushkina, Hydrometallurgical processing of fine converter dusts of copper smelting production, Non-ferrous metals. 4 (1982) 16-21.

[16] G.V. Skopov, A.V. Matveev, Co-processing of polymetallic semi-products of metallurgical production. Metallurg. 8 (2011) 73-76.

[17] P. Oustadakis, P.E. Tsakiridis, A. Katsiapi, S. Agatzini-Leonardo, Hydrometallurgical process for zinc recovery from electric arc furnace dust (EAFD). Part I: Characterization and leaching by diluted sulphuric acid, Journal of Haz-ardous Materials. 179 (2010) 1-7.

DOI: 10.1016/j.jhazmat.2010.01.059

[18] K.A. Karimov, S.S. Naboichenko, Sulfuric acid leaching of high-arsenic dust from copper smelting Metallurgist. (2016) 1-4.

DOI: 10.1007/s11015-016-0313-8

[19] E.N. Selivanov, G.V. Skopov, R.I. Gulyaeva, A.V. Matveev, The composition of the dust electrostatic precipitators of the Vanyukov furnace. Metallurg. 5 (2014) 92-95.

DOI: 10.1007/s11015-014-9928-9

[20] XU Zhi-feng, Li Qiang, NIE Hua-ping. Pressure leaching technique of smelter dust with high-copper and high-arsenic, Transactions of nonferrous metals society of China, 20 (2010) 176-181.

DOI: 10.1016/s1003-6326(10)60035-0

[21] V.I. Neustroev, K.A. Karimov, S.S. Naboichenko, A.A. Kovyazin, Autoclave leaching of arsenic from copper concentrate and matte, Metallurgist. 59(1-2) (2015) 177-179.

DOI: 10.1007/s11015-015-0080-y

[22] K.A. Karimov, S.S. Naboichenko, V.I. Neustroev, Pressure leaching of copper arsenic-containing mattes with copper sulfate solutions, Russian Journal of Non-Ferrous Metals. 57(1) (2016) 1-6.

DOI: 10.3103/s1067821216010077

[23] A.I. Ryumin, N.V. Mironkina, Investigation of the kinetic regularities of the dissolution of lead sulfate in solutions of chloride and sodium hydroxide, Journal of Siberian Federal University. Series: Engineering and technology. 6(4) (2013) 450-454.

[24] A.K. Ter-Oganesyants, E.F. Grabchak, N.N. Anisimova and others. Non-ferrous metals. 11 (2006) 27.

[25] N.V. Mironkina, O.N. Vyazova, A.D. Mikhnev, A.I. Ryumin, Study of the solubility of lead sulfide and silver chloride in chlorous sodium solutions, Bulletin of the Siberian State Aerospace University. Academician M.F. Reshetnev. 2(15) (2007) 80-82.