Water leaching of arsenic trioxide from metallurgical dust with emphasis on its kinetics

Abstract

Water leaching of As₂O₃ from metallurgical dust containing various metals was investigated, serving the purpose of dearsenization and simultaneous metal enrichment especially for indium. Effects of leaching temperature, liquid/solid ratio (LSR) and leaching time were studied. It was found that the initial dissolution was very fast but was then so inhibited by the increasingly dissolved As₂O₃, which makes it difficult to saturate enough arsenic in the leaching solution or in leaching out all the soluble arsenic with excess dosage of water within acceptable time (120 min). Only about 73% of As₂O₃ was extracted under the optimal conditions investigated. Two-step leaching showed similar trends and was thus unnecessary for improving As₂O₃ extraction. These observations could reasonably be accounted for the reversibility of the dissolution reaction. Kinetically, the leaching was described satisfactorily by the semi-empirical Avrami model with the apparent activation energy of 36.08 kJ/mol. The purity of the obtained product AS2O3 could reach 98.7%, while the indium could be enriched in the leaching residue without loss.

Keywords

arsenic leaching / arsenic removal / arsenic trioxide / arsenate / arsenic recovery

References

[1] HanC, LiH, PuH, YuH, DengL, HuangS, LuoY. Synthesis and characterization of mesoporous alumina and their performances for removing arsenic (V) [J]. Chemical Engineering Journal, 2013, 217: 1-9

[2] LongG, PengY, BradshawD. A review of copper-arsenic mineral removal from copper concentrates [J]. Minerals Engineering, 2012, 36-38: 179-186

[3] MihajlovicI, StrbacN, ZivkovicZ, KovacevicR, StehernikM. A potential method for arsenic removal from copper concentrates [J]. Minerals Engineering, 2007, 20(1): 26-33

[4] LinD, QiuK. Removing arsenic from anode slime by vacuum dynamic evaporation and vacuum dynamic flash reduction [J]. Vacuum, 2012, 86(8): 1155-1160

[5] safarzadeh MS, miller JD, HuangH H. The behavior of arsenic trioxide in non-ferrous extractive metallurgical processing [J]. Metallurgical Research and Technology, 2014, 111(2): 95-105

[6] LinD, QiuK. Removal of arsenic and antimony from anode slime by vacuum dynamic flash reduction [J]. Environmental Science and Technology, 2011, 45(8): 3361-3366

[7] YinZ, LuW, XiaoH. Arsenic removal from copper-silver ore by roasting in vacuum [J]. Vacuum, 2014, 101: 350-353

[8] ShibayamaA, TakasakiY, WilliamT, YamatodaniA, HiguchiY, SunagawaS, OnoE. Treatment of smelting residue for arsenic removal and recovery of copper using pyro-hydrometallurgical process [J]. Journal of Hazardous Materials, 2010, 181(1-3): 1016-1023

[9] PetersonM, TwidwellL G. Removal of arsenic from lead smelter speiss [J]. Journal of Hazardous Materials, 1985, 12(3): 225-229

[10] KeJ, QiuR, ChenC. Recovery of metal values from copper smelter flue dust [J]. Hydrometallurgy, 1984, 12(2): 217-224

[11] LiY, LiuZ, LiQ, ZhaoZ, LiuZ, ZengL. Removal of arsenic from Waelz zinc oxide using a mixed NaOH-Na2S leach [J]. Hydrometallurgy, 2011, 108(34): 165-170

[12] LiY, LiuZ, LiQ, ZhaoZ, LiuZ, ZengL, LiL. Removal of arsenic from arsenate complex contained in secondary zinc oxide [J]. Hydrometallurgy, 2011, 109(34): 237-244

[13] TongampW, TakasakiY, ShibayamaA. Arsenic removal from copper ores and concentrates through alkaline leaching in NaHS media [J]. Hydrometallurgy, 2009, 98(34): 213-218

[14] AweS A, Sandstr MA. Selective leaching of arsenic and antimony from a tetrahedrite rich complex sulphide concentrate using alkaline sulphide solution [J]. Minerals Engineering, 2010, 23(15): 1227-1236

[15] BalZ P, AchimovicovM. Selective leaching of antimony and arsenic from mechanically activated tetrahedrite, jamesonite and enargite [J]. International Journal of Mineral Processing, 2006, 81(1): 44-50

[16] Fern NdezM A, SegarraM, EspiellF. Selective leaching of arsenic and antimony contained in the anode slimes from copper refining [J]. Hydrometallurgy, 1996, 41(23): 255-267

[17] TongampW, TakasakiY, ShibayamaA. Selective leaching of arsenic from enargite in NaHS-NaOH media [J]. Hydrometallurgy, 2010, 101(12): 64-68

[18] VIRČKovaE, FedorJ. Leaching behaviour of arsenic trisulphide with sodium hydroxide solution [J]. Hydrometallurgy, 1991, 27(1): 1-6

[19] GuoX, YiY, ShiJ, TianQ. Leaching behavior of metals from high-arsenic dust by NaOLHSfeS alkaline leaching [J]. Transactions of Nonferrous Metals Society of China, 2016, 26(2): 575-580

[20] DelfiniM, FerriniM, ManniA, MassacciP, PigaL. Arsenic leaching by Na2S to decontaminate tailings coming from colemanite processing [J]. Minerals Engineering, 2003, 16(1): 45-50

[21] LiY, LiuZ, LiQ, LiuF, LiuZ. Alkaline oxidative pressure leaching of arsenic and antimony bearing dusts [J]. Hydrometallurgy, 2016, 166: 41-47

[22] PadillaR, RODR GuezG, RuizM C. Copper and arsenic dissolution from chalcopyrite - enargite concentrate by sulfidation and pressure leaching in H2SO4-O2 [2]. Hydrometallurgy, 2010, 100(34): 152-156

[23] Ruiz MC, GrandonL, PadillaR. Selective arsenic removal from enargite by alkaline digestion and water leaching [J]. Hydrometallurgy, 2014, 150: 20-26

[24] CaoY. Recovery in from as dust of copper smelter process [J]. Hunan Nonferrous Metals, 2005, 21(1): 5-8

[25] ChenW, NiuQ, WangY, ZengG, LiY, PengY, HuangJ. Study on technology of eliminating arsenic in process of producing indium [J]. Journal of Hunan University (Natural Sciences), 2001, 28(5): 96-99

[26] WeiY. Discussion and practice of arsenic removal process for the recovering indium in hydrometallurgy zinc [J]. Nonferrous Mining and Metallurgy, 2015, 31(3): 33-36

[27] YangK, QinW, LiuW. Extraction of metal arsenic from waste sodium arsenate by roasting with charcoal powder [J]. Metals, 2018, 8(7): 542

[28] WilsonS C, LockwoodP V, AshleyP M, TigheM. The chemistry and behaviour of antimony in the soil environment with comparisons to arsenic: A critical review [J]. Environmental Pollution, 2010, 15851169-1181

[29] Lei StM, CaseyR J, CaridiD. The management of arsenic wastes: problems and prospects [J]. Journal of Hazardous Materials, 2000, 76(1): 125-138

[30] PokrovskiG, GoutR, SchottJ, ZotovA, HarrichouryJ C. Thermodynamic properties and stoichiometry of As(III) hydroxide complexes at hydrothermal conditions [J]. Geochimica et Cosmochimica Acta, 1996, 60(5): 737-749

[31] O'DayP. Chemistry and mineralogy of arsenic [J]. Elements, 2006, 2(2): 77-83

[32] GoutR, PokrovskiG, SchottJ, ZwickA. Raman spectroscopic study of arsenic speciation in aqueous solutions up to 275 °C [J]. Journal of Raman Spectroscopy, 1998, 28(9): 725-730

[33] FrankeM D, ErnstW R, MyersonA S. Kinetics of dissolution of alumina in acidic solution [J]. AIChE Journal, 1987, 33(2): 267-273

[34] HeG, ZhaoZ, WangX, LiJ, ChenX, HeL, LiuX. Leaching kinetics of scheelite in hydrochloric acid solution containing hydrogen peroxide as complexing agent [J]. Hydrometallurgy, 2014, 144-145(4): 140-147

[35] ZhengY J, ChenK K. Leaching kinetics of selenium from selenium-tellurium-rich materials in sodium sulfite solutions [J]. Transactions of Nonferrous Metals Society of China, 2014, 24(2): 536-543

[36] LiG, RaoM, JiangT, HuangQ, PengZ. Leaching of limonitic laterite ore by acidic thiosulfate solution [J]. Minerals Engineering, 2011, 24(8): 859-863

[37] KanungoS B, JenaP K. Studies on the dissolution of metal values in manganese nodules of Indian Ocean origin in dilute hydrochloric acid [J]. Hydrometallurgy, 1988, 21(1): 23-39

[38] KeskinlerB, BayramogluM. Kinetics of phosphoric acid production by decomposition of monocalcium phosphate in ethanol [J]. International Journal of Mineral Processing, 1992, 36(3): 259-271

[39] KabaiJ. Determination of specific activation energies of metal oxides and metal oxide hydrates by measurement of the rate of dissolution [J]. Acta Chim Acad Scientiarium Hungaricae, 1973, 78: 57-73

[40] ZhangR, MaS, YangQ, ZhengS, ZhangY, KimN, HongS. Research on NaCaHSi04 decomposition in sodium hydroxide solution [J]. Hydrometallurgy, 2011, 108(34): 205-213

[41] HulbertS F, HuffD E. Kinetics of alumina removal from a calcined kaolin with nitric, sulfuric, and hydrochloric acids [J]. Clay Minerals, 1970, 8(3): 337-345