【作者】 王青春； 安胜利； 张胤； 刘嘉；

【Author】 WANG Qing-chun~1,An Sheng-li~1,ZHANG Yin~1,LIU Jia~3 (1.School of Rare Earth,Inner Mongolia University of Science and Technology,Baotou 014010, China 2.School of Science,Northeastern University,Shenyang 110004,China)

【机构】 内蒙古科技大学稀土学院； 东北大学理学院；

【摘要】 以活性炭为还原剂、Cl₂为氯化剂,研究了包钢选矿厂尾矿直接加碳氯化和经Na₂CO₃焙烧后加碳氯化在提取稀土氯化物的同时提取氯化铀的新工艺。系统考察了反应时间、温度对铀氯化率的影响。结果表明:在氯化温度为600℃时氯化反应2 h,铀提取率可达79.6%。经Na₂CO₃焙烧后的尾矿在相同的工艺条件下铀的氯化率有所降低。更多还原

【Abstract】 A novel carbochlorination process was investigated for extracting rare earths from the tailings of Bao Steel’s concentrator taking carbon as reducing agent,chlorine as chlorinating agent and Na₂CO₃ as rotasting agent.Different reaction times and temperatures are considered. The results show that at 600℃for 2 h the uranium yield can reach 79.6%.The uranium yield decreases a little under pretreatment with Na₂CO₃ rotasting before carbochlorination at the same condition.更多还原