摘要
对某钛冶金氯化收尘渣进行水洗无害化处理得到水洗渣;对水洗渣进行钙化焙烧,研究了焙烧温度和焙烧时间对水洗渣钒浸出率的影响。结果表明,氯化收尘渣中钒主要以低价钒形式存在;钒浸出率随焙烧温度升高而增加,焙烧温度850℃时,钒浸出率达88%;焙烧时间增加,不同产物进行二次反应,形成钒青铜等难溶化合物,出现不同价态钒酸盐相,导致在Na_(2)CO_(3)溶液中钒浸出率不同;适宜的焙烧温度为850℃,焙烧时间为120 min。
The dust generated during chlorination process in recovering titanium by metallurgical process was washed with water.Then,the residue left after water-washing was subjected to calcification roasting process,and the effects of roasting temperature and roasting time on the leaching rate of vanadium from the residue were studied.The results indicate that vanadium in the dust from chlorination process mainly exists as low-valent vanadium,and the vanadium leaching rate increases with the rising temperature.The vanadium leaching rate reaches 88%with the roasting temperature of 850℃.As the roasting time increases,the previously obtained different products undergo a secondary reaction,forming insoluble compounds of vanadium bronze,and also vanadate with different valences,which results in different vanadium leaching rates in Na_(2)CO_(3) solution.It is concluded that the roasting process should be optimally at temperature of 850℃with a roasting time of 120 minutes.
作者
金春容
贺永东
赵亿坤
孙小涵
杜玉峰
白万全
陈守俊
刘小龙
JIN Chunrong;HE Yongdong;ZHAO Yikun;SUN Xiaohan;DU Yufeng;BAI Wanquan;CHEN Shoujun;LIU Xiaolong(School of Physical Science and Technology,Xinjiang University,Urumqi 830046,Xinjiang,China;Shandong Energy Group,Jinan 250100,Shandong,China;Xinjiang Nongliushi Aluminum Co Ltd,Wujiaqu 831300,Xinjiang,China;Tianshan Aluminum Group Co Ltd,Shihezi 832000,Xinjiang,China;Xinjiang Sheng′an New Materials Co Ltd,Hami 839000,Xinjiang,China;Xinjiang Tianlong Mining Co Ltd,Fukang 831500,Xinjiang,China)
出处
《矿冶工程》
CAS
北大核心
2024年第1期89-94,共6页
Mining and Metallurgical Engineering
基金
国家自然科学基金(51861033)
新疆维吾尔自治区科技厅重点研发专项项目(2020B02007)。
关键词
钒
氯化收尘渣
水洗渣
钙化焙烧
碱浸
提钒
vanadium
chlorinated dust collection residue
washable residue
calcification roasting
alkaline leaching
vanadium extraction
作者简介
金春容(1996-),女,贵州遵义人,硕士研究生,主要从事钛冶金钒渣无害化处理⁃钒资源赋存与回收利用研究。E⁃mail:1473431751@qq.com;通信作者:贺永东(1965-),男,湖北黄冈人,博士,教授,主要研究方向为有色金属。E⁃mail:hydongq@126.com第44卷第1期2024年2月矿冶工程MINING AND METALLURGICAL ENGINEERING Vol 44№1February 2024。
