摘要
针对国内某辉锑矿进行碱性硫化钠体系法浸出锑的研究,通过改变Na_2S浓度、NaOH浓度、浸出时间、浸出温度、液固比进行条件试验。确定出经济可行的浸出条件:当硫化钠过量系数为1、Na_2S浓度与NaOH浓度比6:4、浸出时间30 min、浸出温度50℃、液固比4∶1条件下进行浸出时,锑的浸出率达到96.19%。当温度达到90℃时,锑的浸出率能达到99.54%。
The condition experiment on antimony leaching in alkalic system of one domestic stibnite ore is carried out through changing the concentration of Na2S and NaOH, the leaching time, the leaching temperature, liquid-solid ratio. The confirmed economical feasible leaching conditions are: The concentration ratio of Na2S and NaOH is 6:4 when the excess coefficient of sodium sulphide is 1, the leaching time is 30 min, the leaching temperature is 50℃, the leaching rate of antimony can reach to 96.19% when the liquid-solid ratio is 4:1. The leaching rate of antimony can reach to 99.54% when temperature reach to 90℃.
作者
杨帆
谢刚
李荣兴
史淯升
史春阳
金贵忠
俞小花
YANG Fan;XIE Gang;LI Rong-xing;SHI Yu-sheng;SHI Chun-yang;JIN Gui-zhong;YU Xiao-hua(Metallurgy and Energy Engineering College, Kunming University of Science and Technology, Kunming, Yunnan 650093, China;Kunming Metallurgical Research Institute, Kunming, Yunnan 650031, China;State Key Laboratory of Pressure Hydrometallurgical Technology of Associated Nonferrous Metal Resources, Kunming, Yunnan 650031, China;HSIKWANG SHAN TWINKLING STAR Co., Ltd., Lenshuijiang, Hunan 417502, China)
出处
《云南冶金》
2019年第1期40-44,共5页
Yunnan Metallurgy
基金
国家自然科学基金面上项目(51374118)
共伴生有色金属资源加压湿法冶金技术国家重点实验室开放基金(yy2016003)
关键词
辉锑矿
硫化钠体系
锑浸出率
stibnite
sodium sulphide
leaching rate of antimony
