云南某稀土矿选冶试验
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摘要
为合理高效开发利用云南某稀土矿,在矿石工艺矿物学研究查明矿石化学成分、主要矿物组成及嵌布特征的基础上,依据矿石特性采用浸出—沉淀—灼烧的选冶工艺流程进行了选冶试验。试验结果表明:从含稀土氧化物总量REO为0.088 5%、离子吸附相稀土氧化物总量SREO为0.064 1%的原矿中可获得产率为0.066 7%,REO品位为96.27%,REO回收率为76.40%,SREO回收率为97.02%的混合稀土氧化物。
To reasonable and high efficient develop a rare earth ore from Yunnan,based on the results of ore property,main mineral composition and dissemination of process mineralogy,separation and smelting experiment was conducted via leaching-precipitation-burning process flowsheet based on the ore characteristics.Results show that,mixed rare earth oxides with yield of 0.066 7% and REO grade of 96.27%,REO recovery rate of 76.40%,SREO recovery rate of 97.02% from raw ore with total rare earth oxides REO is 0.088 5%,ion adsorb phase rare earth oxides SREO is 0.064 1%.
To reasonable and high efficient develop a rare earth ore from Yunnan,based on the results of ore property,main mineral composition and dissemination of process mineralogy,separation and smelting experiment was conducted via leaching-precipitation-burning process flowsheet based on the ore characteristics.Results show that,mixed rare earth oxides with yield of 0.066 7% and REO grade of 96.27%,REO recovery rate of 76.40%,SREO recovery rate of 97.02% from raw ore with total rare earth oxides REO is 0.088 5%,ion adsorb phase rare earth oxides SREO is 0.064 1%.
引文
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[2] 郭小斌,王明.含稀土高岭土精矿回收离子相稀土工艺研究[J].有色金属科学与工程,2016(6):124-128.
[3] 余生根.浅谈离子吸附型稀土矿的特征及离子相稀土的提取工艺[J].矿产综合利用,1987(1):57-60.
[4] 田君,唐学昆,尹敬群,等.风化壳淋积型稀土矿浸取过程中基础理论研究现状[J].有色金属科学与工程,2012(4):48-52.
[5] 王明,杨庆珠.离子型稀土矿分离的工艺设计[J].稀有金属与硬质合金,2015(3):16-20.
[6] 李沛伦,邱显扬,胡真.稀土矿细泥合理选矿工艺探索实验研究[J].稀土,2019(1):115-120.
[7] 周晓文,温德新,罗仙平.南方离子型稀土矿提取技术研究现状及展望[J].有色金属科学与工程,2012(6):81-85.
[8] 彭俊,沈裕军,刘强.风化壳淋积型稀土矿选择性浸出新工艺研究[J].稀土,2016(1):34-38.