郑雪梅1,
张利波2,
彭金辉2,
李志1,
李松1
1.六盘水师范学院化学与材料工程学院，六盘水 553004
2.昆明理工大学非常规冶金教育部重点实验室，昆明 650093
基金项目: 国家重点基础研究发展计划（973）项目（2014CB643404）
六盘水师范学院2017年度高层次人才科研启动基金资助项目（LPSSYKYJJ201707）
六盘水师范学院重点学科建设项目（LPSSYZDPYXK201708）
Leaching zinc from blast furnace dust with ammonium acetate
MA Aiyuan1,,ZHENG Xuemei1,
ZHANG Libo2,
PENG Jinhui2,
LI Zhi1,
LI Song1
1.School of Chemistry and Materials Engineering, Liupanshui Normol University, Liupanshui 553004, China
2.Key Laboratory of Unconventional Metallurgy, Ministry of Education, Kunming University of Science and Technology, Kunming 650093, China
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摘要:采用NH3-CH3COONH4-H2O体系进行了高炉瓦斯灰提锌工艺研究。结果表明：控制浸出温度45 °C，总氨浓度5 mol·L-1，液固比5:1，[NH3]/[NH4]+摩尔比1:1，搅拌速度300 r·min-1，浸出时间60 min，锌浸出率达77.79%。FT-IR及ESI-MS分析显示羧酸阴离子能结合Zn离子形成复杂的羧酸盐配合物，添加CH3COONH4能促进锌的溶出，XRD、SEM-EDS表征分析显示浸出渣中残留ZnFe2O4是导致锌浸出率低的限制性因素。
关键词: 高炉瓦斯灰/
锌/
浸出/
NH3-CH3COONH4-H2O体系
Abstract:Zinc recovery from blast furnace dust (BFD) in NH3-CH3COONH4-H2O system is investigated. It was found that 77.79% of Zn could be dissolved from the BFD under the conditions of total ammonia concentration of 5 mol·L-1, stirring speed of 300 r·min-1, [NH3]/[NH4]+ of 1:1, liquid-solid ratio of 5:1, leaching temperature of 45 °C and leaching time of 60 min. The results of FT-IR and ESI-MS analysis showed that zinc can combine with the carboxylate anion to form Zn-complexes and promote the dissolution of zinc. Compare with the phase and morphology structure of samples before and after leaching by XRD and SEM-EDS, it is found that ZnFe2O4 is the low zinc leaching rate of the main restrictive factors.
Key words:blast furnace dust/
zinc/
leaching/
NH3-CH3COONH4-H2O systerm.
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| [5] | 武斌, 薛小辉. 水泥固化锌污染土的力学性质变化规律分析[J]. 科学技术与工程,2016,16(19):277-282 10.3969/j.issn.1671-1815.2016.19.048 |
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| [8] | OUSTADAKIS P, TSAKIRIDIS P E, KATSIAPI A, et al.Hydrometallurgical process for zinc recovery from electric arc furnace dust (EAFD): Part I: Characterization and leaching by diluted sulphuric acid[J].Journal of Hazardous Materials,2010,179(1):1-7 10.1016/j.jhazmat.2010.01.059 |
| [9] | TSAKIRIDIS P E, OUSTADAKIS P, KATSIAPI A, et al.Hydrometallurgical process for zinc recovery from electric arc furnace dust (EAFD).Part II: Downstream processing and zinc recovery by electrowinning[J].Journal of Hazardous Materials,2010,179(1):8-14 10.1016/j.jhazmat.2010.01.059 |
| [10] | HERCK P, VANDECASTEELE C, SWENNEN R, et al.Zinc and lead removal from blast furnace sludge with a hydrometallurgical process[J].Environmental science and technology,2000,34(17):3802-3808 10.1021/es991033l |
| [11] | SETHURAJAN M, HUGUENOT D, JAIN R, et al.Leaching and selective zinc recovery from acidic leachates of zinc metallurgical leach residues[J].Journal of Hazardous Materials,2016,324:71-82 10.1016/j.jhazmat.2016.01.028 |
| [12] | 王杰, 熊玮, 张保平. 高炉瓦斯灰氨法脱锌工艺分析[J]. 环境科学与技术,2014,37(5):138-142 |
| [13] | RUIZ O, CLEMENTE C, ALONSO M, et al.Recycling of an electric arc furnace flue dust to obtain high grade ZnO[J].Journal of Hazardous Materials,2007,141(1):33-36 10.1016/j.jhazmat.2006.06.079 |
| [14] | MA A Y, ZHANG L B, PENG J H, et al.Extraction of zinc from blast furnace dust in ammonia leaching system[J].Green Processing and Synthesis,2016,5(1):23-30 10.1515/gps-2015-0051 |
| [15] | STEER J M, GRIFFITHS A J.Investigation of carboxylic acids and non-aqueous solvents for the selective leaching of zinc from blast furnace dust slurry[J].Hydrometallurgy,2013,140(11):34-41 10.1016/j.hydromet.2013.08.011 |
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刊出日期:2018-05-19
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乙酸铵浸出高炉瓦斯灰中的锌
马爱元1,,郑雪梅1,
张利波2,
彭金辉2,
李志1,
李松1
1.六盘水师范学院化学与材料工程学院，六盘水 553004
2.昆明理工大学非常规冶金教育部重点实验室，昆明 650093
基金项目: 国家重点基础研究发展计划（973）项目（2014CB643404） 六盘水师范学院2017年度高层次人才科研启动基金资助项目（LPSSYKYJJ201707） 六盘水师范学院重点学科建设项目（LPSSYZDPYXK201708）
关键词: 高炉瓦斯灰/
锌/
浸出/
NH3-CH3COONH4-H2O体系
摘要:采用NH3-CH3COONH4-H2O体系进行了高炉瓦斯灰提锌工艺研究。结果表明：控制浸出温度45 °C，总氨浓度5 mol·L-1，液固比5:1，[NH3]/[NH4]+摩尔比1:1，搅拌速度300 r·min-1，浸出时间60 min，锌浸出率达77.79%。FT-IR及ESI-MS分析显示羧酸阴离子能结合Zn离子形成复杂的羧酸盐配合物，添加CH3COONH4能促进锌的溶出，XRD、SEM-EDS表征分析显示浸出渣中残留ZnFe2O4是导致锌浸出率低的限制性因素。
English Abstract
Leaching zinc from blast furnace dust with ammonium acetate
MA Aiyuan1,,ZHENG Xuemei1,
ZHANG Libo2,
PENG Jinhui2,
LI Zhi1,
LI Song1
1.School of Chemistry and Materials Engineering, Liupanshui Normol University, Liupanshui 553004, China
2.Key Laboratory of Unconventional Metallurgy, Ministry of Education, Kunming University of Science and Technology, Kunming 650093, China
Keywords: blast furnace dust/
zinc/
leaching/
NH3-CH3COONH4-H2O systerm
Abstract:Zinc recovery from blast furnace dust (BFD) in NH3-CH3COONH4-H2O system is investigated. It was found that 77.79% of Zn could be dissolved from the BFD under the conditions of total ammonia concentration of 5 mol·L-1, stirring speed of 300 r·min-1, [NH3]/[NH4]+ of 1:1, liquid-solid ratio of 5:1, leaching temperature of 45 °C and leaching time of 60 min. The results of FT-IR and ESI-MS analysis showed that zinc can combine with the carboxylate anion to form Zn-complexes and promote the dissolution of zinc. Compare with the phase and morphology structure of samples before and after leaching by XRD and SEM-EDS, it is found that ZnFe2O4 is the low zinc leaching rate of the main restrictive factors.
