论文摘要
A new alkaline pressure oxidative leaching process(with NaNO3 as the oxidant and NaOH as the alkaline reagent) is proposed herein to remove arsenic, antimony, and lead from bismuth-rich and arsenic-rich lead anode slime for bismuth, gold, and silver enrichment.The effects of the temperature, liquid-to-solid ratio, leaching time, and reagent concentration on the leaching ratios of arsenic, antimony, and lead were investigated to identify the optimum leaching conditions. The experimental results under optimized conditions indicate that the average leaching ratios of arsenic, antimony and lead are 95.36%, 79.98%, 63.08%, respectively. X-ray diffraction analysis indicated that the leaching residue is composed of Bi, Bi2O3, Pb2Sb2O7, and trace amounts of NaSb(OH)6. Arsenic, antimony, and lead are thus separated from lead anode slime as Na3 As O4×10 H2 O and Pb2Sb2O7. Scanning electron microscopy and energy-dispersive spectrometry imaging revealed that the samples undergo appreciable changes in their surface morphology during leaching and that the majority of arsenic, lead, and antimony is removed. X-ray photoelectron spectroscopy was used to demonstrate the variation in the valence states of the arsenic, lead, and antimony.The Pb(IV) and Sb(V) content was found to increase substantially with the addition of NaNO3.
论文目录
文章来源
类型: 期刊论文
作者: Yun-long He,Rui-dong Xu,Shi-wei He,Han-sen Chen,Kuo Li,Yun Zhu,Qing-feng Shen
来源: International Journal of Minerals Metallurgy and Materials 2019年06期
年度: 2019
分类: 工程科技Ⅱ辑,工程科技Ⅰ辑
专业: 冶金工业
单位: Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology,State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology
基金: financially supported by the National Natural Science Foundation of China(No.51564031),Independent Research Project of the State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization(No.CNMRCUTS1707),the Cooperation project between School and Enterprise of China(No.0201352042)
分类号: TF803.21
页码: 689-700
总页数: 12
文件大小: 544K
下载量: 18
相关论文文献
- [1].Kinetics study on leaching of rare earth and aluminum from polishing powder waste using hydrochloric acid[J]. Journal of Rare Earths 2020(09)
- [2].Extraction of scandium from red mud by acid leaching with CaF_2 and solvent extraction with P507[J]. Journal of Rare Earths 2020(09)
- [3].Effects of mechanical activation on the kinetics of terbium leaching from waste phosphors using hydrochloric acid[J]. Journal of Rare Earths 2017(04)
- [4].Study on mechanisms of different sulfuric acid leaching technologies of chromite[J]. International Journal of Minerals Metallurgy and Materials 2017(09)
- [5].Lattice Boltzmann model for simulation on leaching process of weathered elution-deposited rare earth ore[J]. Journal of Rare Earths 2017(10)
- [6].Sulfuric acid leaching of high iron-bearing zinc calcine[J]. International Journal of Minerals Metallurgy and Materials 2017(11)
- [7].Mechanochemical leaching of chalcopyrite concentrate by sulfuric acid[J]. International Journal of Minerals Metallurgy and Materials 2016(04)
- [8].A mathematical model for column leaching of ion adsorption-type rare earth ores[J]. International Journal of Minerals Metallurgy and Materials 2020(04)
- [9].Recovery of gold from hydrometallurgical leaching solution of electronic waste via spontaneous reduction by polyaniline[J]. Progress in Natural Science:Materials International 2017(04)
- [10].Pressure nitric acid leaching of alkali-pretreated low-grade limonitic laterite[J]. Rare Metals 2015(01)
- [11].Ultrasound effects on zinc recovery from EAF dust by sulfuric acid leaching[J]. International Journal of Minerals Metallurgy and Materials 2015(04)
- [12].Study on leaching rare earths from bastnaesite treated by calcification transition[J]. Journal of Rare Earths 2014(11)
- [13].Optimization Study of Calcium Leaching From Steelmaking Slag[J]. Journal of Iron and Steel Research(International) 2012(04)
- [14].Column leaching of lanthanides from Abu Tartur phosphate ore with kinetic study[J]. Journal of Rare Earths 2010(04)
- [15].E-pH diagram of ZnS-H_2O system during high pressure leaching of zinc sulfide[J]. Transactions of Nonferrous Metals Society of China 2010(10)
- [16].Optimization of the acid leaching process by using an ultrasonic field for metallurgical grade silicon[J]. 半导体学报 2009(05)
- [17].Technological conditions and kinetics of leaching copper from complex copper oxide ore[J]. Journal of Central South University of Technology 2009(06)
- [18].Selective metal leaching from technosols based on synthetic root exudate composition[J]. Journal of Environmental Sciences 2020(10)
- [19].Recovery of rare earths and aluminum from FCC waste slag by acid leaching and selective precipitation[J]. Journal of Rare Earths 2017(11)
- [20].Lime Assisted Cyanide Leaching of Refractory Gold Ores from Ajialongwa Mine[J]. 矿物学报 2013(S1)
- [21].Variation on leaching behavior of caustic compounds in bauxite residue during dealkalization process[J]. Journal of Environmental Sciences 2020(06)
- [22].Molecular dynamics simulation of aluminum inhibited leaching during ion-adsorbed type rare earth ore leaching process[J]. Journal of Rare Earths 2019(12)
- [23].Effects of organic acids on the leaching process of ion-adsorption type rare earth ore[J]. Journal of Rare Earths 2017(12)
- [24].Variation law of gas holdup in an autoclave during the pressure leaching process by using a mixed-flow agitator[J]. International Journal of Minerals Metallurgy and Materials 2017(08)
- [25].Influence of phase and microstructure on the rate of hydrochloric acid leaching in pretreated Panzhihua ilmenite[J]. Particuology 2014(03)
- [26].Chemical leaching mechanism of chalcopyrite with difference mineralization[J]. Rare Metals 2013(01)
- [27].Oxygen pressure acid leaching of Gacun complex Cu concentrates[J]. Journal of Central South University 2012(01)
- [28].Indium recovery from zinc oxide flue dust by oxidative pressure leaching[J]. Transactions of Nonferrous Metals Society of China 2010(S1)
- [29].Kinetics of acid-oxygen leaching of low-sulfur Ni-Cu matte at atmospheric pressure[J]. Transactions of Nonferrous Metals Society of China 2010(06)
- [30].Leaching process of germanium oxide dust[J]. Rare Metals 2008(06)