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[1]梅吟,张泽强,张文胜,等.含稀土磷精矿湿法制磷酸过程稀土的浸出规律[J].武汉工程大学学报,2011,(03):9-11,15.[doi:10.3969/j.issn.16742869.2011.03.003]
　MEI Yin,ZHANG Ze qiang,ZHANG Wen sheng,et al.The leaching rule of rare earths in production of phosphoric acid by dehydrate process with phosphate concentrates bearing rare earths[J].Journal of Wuhan Institute of Technology,2011,(03):9-11,15.[doi:10.3969/j.issn.16742869.2011.03.003]
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2011年03期
页码:
9-11,15
栏目:
化学与化学工程
出版日期:
2011-03-31

文章信息/Info

Title:
The leaching rule of rare earths in production of phosphoric acid
by dehydrate process with phosphate concentrates bearing rare earths
文章编号:
16742869(2011)03000903
作者:
梅吟1; 张泽强1; 张文胜2; 吴启海2; 吴健2; 池汝安1
1.武汉工程大学环境与城市建设学院,湖北 武汉 430074;
2.贵州锦麟化工有限责任公司,贵州 贵阳 550005
Author(s):
MEI Yin1;  ZHANG Zeqiang1; ZHANG Wensheng2; WU Qihai2;  WU Jian2;  CHI Ruan1
1.School of Environmental & Civil Engineering, Wuhan Institute of Technology, Wuhan 430074, China;
2.Jinlin Chemical Co., Ltd., Guiyang 550005, China
关键词:
含稀土磷精矿; 稀土的浸出规律; 浸出率
Keywords:
phosphate concentrates bearing rare earths;  leaching rule of rare earth;  leaching rates
分类号:
TD983;TD954
DOI:
10.3969/j.issn.16742869.2011.03.003
文献标志码:
A
摘要:
为查明二水法制磷酸过程稀土的走向规律,以贵州织金含稀土磷精矿为研究对象,在实验室模拟二水物湿法磷酸生产过程,研究了不同工艺条件下稀土的浸出规律.研究结果表明,在温度75 ℃,酸过量系数1.25,液固比41,反应时间4 h的条件下,稀土的浸出率最高为53.45%.当浸出率综合考虑磷和稀土的浸出率时,最佳的工艺条件为:温度75 ℃,酸过量系数1.25,液固比31,反应时间4 h的条件下,含稀土磷精矿中P2O5的浸出率为96.85%,稀土的浸出率为52.26%.
Abstract:
In order to ascertain the distribution of rare earths in production of phosphate by dihydrate process, the main participants of this study is Zhijin phosphate concentrates bearing rare earths in Guizhou Province. The production process of dihydrate wetprocess phosphoric acid in the laboratory is stimulated and the leaching rules of rare earth are investigated under different conditions. The test results show that when the leaching temperature is 75 ℃, the excess coefficient of sulfuric acidis 1.25, liquid to solid ratio 31, time consumption is 4 hours, the highest leaching rates of Re2O3 is 53.45%. Under the optimum conditions the leaching temperature is 75 ℃, the excess coefficient of sulfuric acid 1.25, liquidtosolid ratio 31 and time consumption 4 hours. The leaching rates of P2O5 and Re2O3 are 96.85% and 52.26%, respectively.

参考文献/References:

［1］Jorjani E, Bagherieh A H, Mesroghli Sh, et al. Prediction of yttrium,lanthanum,cerium,and neodymium leaching recovery from apatite concentrate using artificial neural networks［J］.Journal of University of Science and Technology Beijing,2008,15(4):367374.
［2］Preston J S, Cole P M, Craig W M, et al. The recovery of rare earth oxides from a phosphoric acid byproduct. Part 1 Leaching of rare earth values and recovery of a mixed rare earth oxide by solvent extraction［J］.Hydrometallurgy,1996,41:119.
［3］Awadallah R M,Soltan M E,El Taher,et al.Concentration of lanthanide and actinides present in Sibaiya phosphate ores［J］.Modelling, Measurement & Control,C: Energetics,Chemistry & Chemical Engineering,Earth,Resources,Environment,Biomedical Problems,2002,63(1):120.
［4］施春华,胡瑞忠,王国芝.贵州织金磷矿岩稀土元素地球化学特征研究［J］.矿物岩石,2004,24(4):7175.
［5］龙志奇,王良士,黄小卫,等.磷矿中微量稀土提取技术研究进展［J］.稀有金属,2009,33(3):434441.

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备注/Memo

备注/Memo:
收稿日期:20100822基金项目:湖北省自然科学基金创新团队项目；国家自然科学基金重点项目（50834006）；教育部创新团队项目（IRT0974）作者简介:梅吟(1986),女,湖北武汉人,硕士研究生.研究方向:环境矿物材料.指导老师:张泽强,男,教授,博士,博士生导师.研究方向:矿物材料.
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