摘要
以贵州某地赤泥为原料,采用低温酸化焙烧-水浸法,考察了焙烧硫酸用量、焙烧温度、焙烧时间、浸出液固比(质量比)、浸出温度、浸出时间等因素对钪浸出率的影响。结果表明:在硫酸与原矿质量比1∶1、焙烧温度200℃、焙烧时间4 h、浸出液固比6∶1、浸出温度80℃、浸出时间4 h条件下,钪浸出率达到89.10%。
With the red mud from Guizhou as raw material,an experiment was carried out by adopting a process of low-temperature acidification roasting followed by water leaching to recover scandium,and effects of factors,including sulfuric acid dosage,temperature and time for roasting process,liquid-solid ratio of leaching solution,leaching temperature and time,on scandium leaching rate were investigated.It is shown that after 4 h-roasting at 200℃with sulfuric acid and raw ore in a mass ratio of 1∶1,and then 4 h-leaching at 80℃with leaching solution and solid in a mass ratio of 6∶1,the leaching rate of scandium can be finally up to 89.10%.
作者
黄苑龄
邓强
HUANG Yuanling;DENG Qiang(Guizhou Key Laboratory of Intelligent Exploration of Strategic Minerals,Guiyang 550003,Guizhou,China;Guizhou General Laboratory of Geology and Mineral Resources,Guiyang 550003,Guizhou,China;Guizhou Engineering Research Center for Comprehensive Utilization of Precious Metals and Mineral Resources,Guiyang 550003,Guizhou,China;Engineering Technology Innovation Center of Mineral Resources Exploration in Bedrock Zones,Ministry of Natural Resources,Guiyang 550003,Guizhou,China)
出处
《矿冶工程》
北大核心
2025年第4期126-129,共4页
Mining and Metallurgical Engineering
基金
黔科合支撑[2023]一般174
黔科合基础MS〔2025〕014
黔科合人才CXTD〔2025〕016。
关键词
钪
赤泥
酸化焙烧
回收利用
水浸
scandium
red mud
acidification roasting
recycle
water leaching
