高钙低品位硫氧混合锌矿氧化焙烧矿相的转变规律

doi:10.12034/j.issn.1009-606X.217151

过程工程学报 ›› 2017, Vol. 17 ›› Issue (5): 1047-1053.DOI: 10.12034/j.issn.1009-606X.217151

高钙低品位硫氧混合锌矿氧化焙烧矿相的转变规律

高小兵，华一新^*，王运，徐存英，李坚，况文浩，张臻，雷震，卢东辉

昆明理工大学冶金与能源工程学院，复杂有色金属资源清洁利用国家重点实验室，云南昆明 650093

收稿日期:2017-03-01 修回日期:2017-03-24 出版日期:2017-10-20 发布日期:2017-10-10
通讯作者: 华一新 huakust@163.com
基金资助:
国家重点基础研究发展计划（973计划）

Mineral Phase Transformation during Oxidation Roasting of Low-grade Sulfide and Oxide Mixed Zinc Ore with High Calcium

Xiaobing GAO, Yixin HUA^*, Yun WANG, Cunying XU, Jian LI, Wenhao KUANG, Zhen ZHANG, Zhen LEI, Donghui LU

Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, State Key Laboratory of Complex Nonferrous Metal Resource Cleaning Utilization, Kunming, Yunnan 650093, China

Received:2017-03-01 Revised:2017-03-24 Online:2017-10-20 Published:2017-10-10
Contact: HUA Yi-xin huakust@163.com

摘要/Abstract

摘要： 针对低品位硫氧混合锌矿含钙高的特点，在低温下对其进行氧化焙烧，通过控制气相中的硫势和氧势，使矿石的矿相发生转变，促进锌在氨性体系中溶解；同时利用矿石中钙的固硫作用，使硫转化成CaSO4，有效避免SO2对环境的污染. 结果表明，锌品位为5.45%的硫氧混合锌矿在300℃下焙烧3 h，矿石中的异极矿和闪锌矿转化成了易溶出的ZnO，方铅矿和黄铁矿分别转化成了PbSO4和Fe2O3，方解石转化成了CaSO4，所得焙砂在NH3?(NH4)2SO4?H2O体系中45℃下浸出，锌浸出率可达73.27%；焙烧温度大于300℃时，焙砂中会产生大量铁酸锌，使锌浸出率下降.

关键词: 低品位硫氧混合锌矿, 氧化焙烧, 矿相转变, 氨浸

Abstract: Based on the characteristics of high calcium content, the low-grade sulfide and oxide mixed zinc ore was treated via an oxidation roasting at low temperatures by controlling the sulfur and oxygen potentials in the gas phase to make the transformation of zinc-bearing mineral phases and promote the dissolution of zinc in the ammonia system. At the same time, sulfur in the ore could be transformed into CaSO4 in the presence of CaCO3 and the pollution of SO2 to environment could be effectively avoid. The results showed that when the mixed zinc ore with a Zn content of 5.45% roasting at 300℃ for 3 h, the hemimorphite and sphalerite in the ore were transformed into easily soluble ZnO, while the galena, pyrite and calcite were transformed into PbSO4, Fe2O3 and CaSO4, respectively. The obtained calcine was leached with NH3?(NH4)2SO4?H2O system at 45℃ and the zinc leaching rate was up to 73.27%. When the temperature was higher than 300℃, however, a large amount of franklinite would be produced in the calcine, resulting in a decrease in the leaching rate of zinc.

Key words: low-grade sulfide and oxide mixed zinc ore, oxidation roasting, mineral phase transformation, ammonia leaching

高小兵华一新王运徐存英李坚况文浩张臻雷震卢东辉. 高钙低品位硫氧混合锌矿氧化焙烧矿相的转变规律[J]. 过程工程学报, 2017, 17(5): 1047-1053.

Xiaobing GAO Yixin HUA Yun WANG Cunying XU Jian LI Wenhao KUANG Zhen ZHANG Zhen LEI Donghui LU. Mineral Phase Transformation during Oxidation Roasting of Low-grade Sulfide and Oxide Mixed Zinc Ore with High Calcium[J]. Chin. J. Process Eng., 2017, 17(5): 1047-1053.

参考文献

[1]冯林永，杨显万，沈庆峰，等.低品位氧化锌粉矿制粒及碱性浸出[J][J].有色金属（冶炼部分）, 2008, (3):12-15
[1]FENG Lin-yong, YANG Xian-wan, SHEN Qing-feng, et al.Pelletizing and Alkaline leaching of low grade powdery ores of zinc oxide[J][J].Non-ferrous metal(extrative metallurgy), 2008, (3):12-15
[4]张亚东，华一新，徐存英，等.高硅高钙低硫型低品位硫氧混合锌矿的矿相重构-氨浸研究[J][J].有色金属（冶炼部分, 2016, (9):5-9
[5]ZHANG Ya-dong, HUA Yi-xin, XU Cun-ying, et al.Study on phase transformation and ammonia leaching of low-grade sulfur-oxygen mixed zinc ore bearing high silicon and calcium and low sulfur[J][J].Non-ferrous metal(extractive metallurgy), 2016, (9):5-9
[6]刘三军，欧乐明，冯其明，等.低品位氧化锌矿石的碱法浸出[J].湿法冶金, 2005, 24(1):23-25
[7]LIU San-jun, OU Le-ming, FENG Qi-ming, et al.Alkaline leaching of zinc oxide ore[J].Hydrometallurgy of China, 2005, 24(1):23-25
[8]YAdong Zhang, Yixin Hua, Xiaobing Gao, et al.Recovery of zinc from a low-grade zinc oxide with high silicon by sulfuric curing and water leaching[J][J].Hydrometallurgy, 2016, (166):16-21
[9]陈晔，陈建华，李玉琼.异极矿氧化锌矿石浮选试验研究[J][J].金属矿山, 2008, (1):67-69, 120
[10]CHEN Ye, CHEN Jian-hua, Li Yu-qiong.Experimental research on flotation of hemimorphite ore[J][J].Metal Mine, 2008, (1):67-69, 120
[11]魏志聪，刘洋，张文彬.我国氧化锌矿直接浸出提锌技术研究现状及进展[J].矿冶研究与开发, 2011, 31(1):40-42
[12]WEI Zhi-cong, LIU Yang, ZHANG Wen-bing.Current status and progress of direct leaching technology of zinc oxide ore in China[J].MNNG R & D, 2011, 31(1):40-42
[13]林祚彦，华一新.高硅氧化锌矿硫酸浸出的工艺及机理研究[J][J].有色金属（冶炼部分）, 2003, (1):9-11
[14]LI Zuo-yan, HUA Yi-xin.Technology and mechanism study on leaching high silicon zinc oxide ore with sulfuric acid[J][J].Non-ferrous metal(extractive metallurgy), 2003, (1):9-11
[15]李存兄，魏昶，樊刚，等.高硅氧化锌矿加压酸法浸出[J].中国有色金属学报, 2009, 19(9):1678-1683
[16]LI Cun-xiong, WEI Chang, FAN Gang, et al.Pressure acid leaching of high silicon zinc oxide ore[J].The Chinese Journal of Nonferrous Metals, 2009, 19(9):1678-1683
[17]FRENAY J.Leaching of oxidized zinc ores in various media[J].Hydrometallurgy, 1985, 15(2):243-253
[18]陈爱良，赵中伟，贾希俊，等.高硅难选氧化锌矿中锌及伴生金属碱浸出研究[J][J].有色金属（冶炼部分）, 2009, (4):6-9
[19]CHEN Ai-liang, ZHAO Zhong-wei, JIA Xi-jun, et al.Leaching zinc and its concomitant metals from difficult dealt zinc oxide ore with high silicon in alkali solution[J][J].Non-ferrous metal（extractive metallurgy）, 2009, (4):6-9
[20]赵中伟，龙双，陈爱良，等.难选高硅氧化锌矿碱浸出动力学[J][J].有色金属（冶炼部分）, 2009, (6):6-9
[21]ZHAO Zhong-wei, LONG Shuan, CHEN Ai-liang, et al.Kinetics of refractory hemimorphite leached with alkali[J][J].Non-ferrous metal(extractive metallurgy), 2009, (6):6-9
[22]刘亚川，刘述平，李博，等.低品位氧化锌的氨-铵盐浸出研究[J] [J].矿产综合利用, 2008, (1):3-5
[23]LIU Ya-chuan, LIU Shu-ping, LI Bo, et al.Research on ammonia-ammonium chloride leaching of a low-grade zinc oxide ore[J][J].Multipurpose Utilization of Mineral Resources, 2008, (1):3-5
[24]李志华，薛怀生，姚耀春.兰坪难选氧化锌矿氨浸动力学研究[J][J].云南冶金, 2003, (4):22-24
[25]LI Zhi-hua, XUE Huai-sheng, YAO Yao-chun.Study on kinetics of refractory zinc oxide ore in Lanping[J][J].Yunnan Metallurgy, 2003, (4):22-24
[26]张元福，梁杰，李谦.铵盐处理氧化锌矿的研究[J] [J].贵州工业大学学报（自然科学版）, 2002, (1):37-41
[27]ZHANG Yuan-fu, LIANG Jie, LI Qian.A study on treating zincite by ammonium salt process[J][J].Journal of Guizhou University of Technology(Science and Technology), 2002, (1):37-41
[28]刘志雄，尹周澜，胡慧萍，等.含硫化锌的低品位氧化锌矿氧化氨浸工艺研究[J][J].中国稀土学报, 2012, 30:899-905
[29]LIU Zhi-xiong, YIN Zhou-lan, HU Hui-ping, et al.Thechnology of oxidative leaching of low-grade complex zinc ore containing ZnS in ammoniacal ammonium sulphate solution[J][J].Journal of Chinese Society of Rare Earths, 2012, 30:899-905
[30]Wang Chenyan，Jiang Peihai.The rational exploitation of middle & low grade zinc oxide and Yuanjiang nickel oxide ore in Yunnan[J][J].Engineering Science, 2005, 7:147-150
[31]张保平，唐谟堂.体系浸出氧化锌矿[J].中国工业大学学报自然科学版, 2001, 32(5):483-486
[32]ZHANG Bao-ping, TANG Mo-tang.Leaching zinc oxide ores in the system of NH4Cl-NH3-H2O[J].J. CENT. SOUTH UNIN. TECHNOL, 2001, 32(5):483-486
[33]唐谟堂，张家靓，王博，等.低品位氧化锌矿在体系中的循环浸出[J].中国有色金属学报, 2011, 21(1):214-219
[34]TANG Mo-tang，ZHANG Jia-liang，WANG Bo，et al.Cycle leaching of low grade zinc oxide ores in MACA system[J].The Chinese Journal of Nonferrous Metals, 2011, 21(1):214-219
[35]Tang Motang，Yang Shenghai，HeJing，et al.Producing high-purity zinc by ammonia leaching of zinc calcine[J][J].China Nonferrous Metallurgy, 2004, (2):14-16
[36]尹杏，刘常青，陈启元，等.异极矿的标准生成热力学函数[J].中南大学学报自然科学版, 2012, 43(6):2054-2058
[37]YIN Xing, LIU Chang-qing, CHEN Qi-yuan, et al.Standard thermodynamic functions for formation of hemimorphite[J].Journal of Central South University(Science and Technology), 2012, 43(6):2054-2058

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高钙低品位硫氧混合锌矿氧化焙烧矿相的转变规律

Mineral Phase Transformation during Oxidation Roasting of Low-grade Sulfide and Oxide Mixed Zinc Ore with High Calcium

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