...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Hazardous Materials >Experimental design and optimization of leaching process for recovery of valuable chemical elements (U, La, V, Mo, Yb and Th) from low-grade uranium ore
【24h】

Experimental design and optimization of leaching process for recovery of valuable chemical elements (U, La, V, Mo, Yb and Th) from low-grade uranium ore

机译：从低品位铀矿石中回收有价值的化学元素（U，La，V，Mo，Yb和Th）的浸出工艺的实验设计和优化

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The paper deals with experimental design and optimization ofleaching process of uranium and associated metals from low-grade, Polish ores. The chemical elements of interest for extraction from the ore were U, La, V, Mo, Yb and Th. Sulphuric acid has been used as leaching reagent. Based on the design of experiments the second-order regression models have been constructed to approximate the leaching efficiency of elements. The graphical illustrations using 3-D surface plots have been employed in order to identify the main, quadratic and interaction effects of the factors. The multi-objective optimization method based on desirability approach has been applied in this study. The optimum condition have been determined as P = 5 bar, T = 120℃ and t=90min. Under these optimal conditions, the overall extraction performance is 81.43% (for U), 64.24% (for La), 98.38% (for V), 43.69% (for Yb) and 76.89% (for Mo) and 97.00% (for Th).
机译：本文研究了低品位波兰矿石中铀及相关金属的浸出实验设计和优化。从矿石中提取的感兴趣的化学元素是U，La，V，Mo，Yb和Th。硫酸已被用作浸出剂。基于实验设计，已构建了二阶回归模型以近似元素的浸出效率。为了识别这些因素的主要，二次和交互作用，已经使用了使用3-D表面图的图形说明。本研究采用了基于期望度的多目标优化方法。确定最佳条件为P = 5 bar，T = 120℃，t = 90min。在这些最佳条件下，总萃取性能为81.43％（对于U），64.24％（对于La），98.38％（对于V），43.69％（对于Yb）和76.89％（对于Mo）和97.00％（对于Th） ）。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号