摘要
考察了硫化剂黄铁矿精矿对含锗褐煤旋涡炉烟尘中低品位锗资源二次挥发富集效果的影响,并结合微观结构分析及热重分析,采用HSC软件分析了含锗烟尘二次挥发富集过程的机理。结果表明,随着黄铁矿精矿用量、硫化反应温度、硫化反应时间的增加,烟尘中含锗量逐渐下降。在硫化剂黄铁矿精矿添加量20%、反应温度1200℃、反应时间6 h条件下,烟尘中锗的挥发率为91.82%,获得的二次烟尘平均锗含量为15.22%,实现了低品位含锗烟尘中锗的二次富集。
Effects of vulcanizing agent,i.e.pyrite concentrate,on secondary volatilization enrichment of germanium resources in germanium-bearing lignite dust of cyclone furnace were investigated.Mechanism of secondary volatilization enrichment of germanium-bearing dust was analyzed by adopting HSC software combining microstructures and TG-DTG analysis.The results show that germanium content in dust drops with the increase of dosage of vulcanizing agent,vulcanization temperature,and reaction time.Average germanium content in secondary dust is 15.22%,germanium volatilization rate is 91.82%,and secondary enrichment of germanium in low-grade germanium-bearing dust is realized under the conditions including dosage of sulfide pyrite concentrate of 20%,reaction temperature of 1200℃,and reaction time of 6 h.
作者
曹洪杨
陈冬冬
饶帅
高远
陈少纯
张魁芳
朱薇
刘志强
CAO Hong-yang;CHEN Dong-dong;RAO Shuai;GAO Yuan;CHEN Shao-chun;ZHANG Kui-fang;ZHU Wei;LIU Zhi-qiang(Guangdong Research Institute of Rare Metals,Guangzhou 510651,China;Guangdong Province Key Laboratory of Rare Earth Development and Application,Guangzhou 510651,China;State Key Laboratory of Separation and Comprehensive Utilization of Rare Metals,Guangzhou 510651,China;School of Environmental Science and Engineering,Guangdong University of Technology,Guangzhou 510006,China)
出处
《有色金属（冶炼部分）》
CAS
北大核心
2019年第12期29-32,43,共5页
Nonferrous Metals（Extractive Metallurgy)
基金
国家科技支撑计划项目[2015BAB02B03]
广东省科学院专项项目（2019GDASYL-0302011,2019GDASYL-0402003,2019GDASYL-0105079,2018GDASCX-0110,2017G1FC0007）
广东省科技项目（2017B030314081）
关键词
低品位
旋涡炉含锗烟尘
硫化剂
二次富集
low grade
germanium-bearing dust of cyclone furnace
vulcanizing agent
secondary enrichment
作者简介
曹洪杨(1980-),男,辽宁辽阳人,博士,教授级高级工程师.
