• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Minerals Engineering >Selective flotation of silicates and Ca-bearing minerals: The role of non-ionic reagent on cationic flotation
【24h】

Selective flotation of silicates and Ca-bearing minerals: The role of non-ionic reagent on cationic flotation

机译：硅酸盐和含钙矿物的选择性浮选：非离子试剂在阳离子浮选中的作用

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

Flotation of pure minerals was performed to characterize the conditions for separation of silicates (paly-gorskite, quartz, orthodase, albite, biotite, and muscovite) and Ca-bearing minerals (calcite, apatite and gypsum). These minerals constitute a large portion of gangue in some low-grade ores of industrial and rare metals (such as rare earth element REE, uranium, tantalum and niobium). The costs associated with pyro- and hydrometallurgical-processing of low-grade ores of strategic REE are prohibitively high due to huge consumptions of energy and reagents. Froth flotation can be applied to beneflciate the ores prior to application of extractive processes. Batch experiments were performed in order to generate scientific knowledge about zeta potentials and flotation characteristics of pure silicates and Ca-bearing minerals. The paper discusses the effects of mixing cationic collectors (amines) with non ionic reagents on the selective flotation of silicates and Ca-bearing minerals. The most important information from this study is about selective flotation of palygorskite from a family of silicates using a mixture of primary amine (Cataflot, 5 x 10~5 M) and non-ionic reagent (PX4826, 5 x 10~5 M) at pH 8. Also, the paper discusses a strategy for reducing the consumption of amine collectors by adding non ionic reagents. Synergistic effects of primary amine and non-ionic reagent in terms of calcite and apatite recoveries by flotation at pH 8 were observed.
机译：进行浮选纯矿物，以表征分离硅酸盐（磷灰石，石英，正切酶，钠长石，黑云母和白云母）和含钙矿物（方解石，磷灰石和石膏）的条件。这些矿物在一些工业和稀有金属（例如稀土元素REE，铀，钽和铌）的低品位矿石中构成了脉石的很大一部分。由于能源和试剂的大量消耗，与战略稀土元素低品位矿石进行火法和湿法冶金处理相关的成本高得惊人。泡沫浮选可用于在应用提取工艺之前对矿石进行选矿。进行批处理实验是为了获得有关纯硅酸盐和含钙矿物的ζ电位和浮选特性的科学知识。本文讨论了将阳离子捕收剂（胺）与非离子试剂混合对硅酸盐和含钙矿物的选择性浮选的影响。这项研究中最重要的信息是关于使用伯胺（Cataflot，5 x 10〜5 M）和非离子试剂（PX4826，5 x 10〜5 M）的混合物从硅酸盐家族中选择性浮选坡缕石pH8。此外，本文还讨论了通过添加非离子试剂来减少胺收集剂消耗的策略。观察到伯胺和非离子试剂对方解石和磷灰石在pH 8下浮选回收的协同作用。

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