...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Critical minerals: their nature, occurrence, recovery and uses
【24h】

Critical minerals: their nature, occurrence, recovery and uses

机译：关键矿物质：他们的性质，发生，恢复和用途

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

Critical minerals (CMs) are metals and non-metals which are vital for the economic well-being of society. However, their supply may be at risk due to geological scarcity, geopolitics, trade policy, vulnerability and other factors. CMs include REEs, PGEs, Li, Be, Ga, Ge, In, W, Co, Nb-Ta, Mo, Sb, V, Ni, Te, Cr, Sn, Th-U, Zr, Hf, Se, Te, Re, phosphate, potash, etc. They occur in three sources, viz. primary - in ore deposits; secondary - in waste, like the electronic (e)-waste, and tertiary - in imports. Currently, many CMs (like REEs, PGMs, Cr, W, Co, Cd, Ge, Se, Te and Re) are recovered primarily during the mineral processing of ores of major commodities, such as Cu, Pb, Zn, Ni and Au. Some CMs like Au, Ag, Pt, Co, Sn and Al are being recovered and reused by recycling the environmentally hazardous, but valuable e-waste that contains similar to 50 chemical elements. The CMs thus recovered are in much demand in diverse industries based on conventional, high-tech and cutting-edge technologies.
机译：关键矿物质（CMS）是金属和非金属，对社会的经济福祉至关重要。然而，由于地质稀缺，地缘政治，贸易政策，脆弱性和其他因素，他们的供应可能存在风险。 CMS包括REES，PGES，LI，BE，GA，GE，IN，W，CO，NB-TA，MO，SB，V，NI，TE，CR，SN，TH-U，ZR，HF，SE，TE，重新，磷酸盐，钾肥等。它们发生在三个来源，viz。初级 - 在矿石矿床;继发于废物，如电子（e）-waste，和第三次进口。目前，许多CMS（如REEE，PGM，CR，W，CO，CD，GE，SE，TE和RE）主要在主要商品的矿物加工期间回收，例如Cu，Pb，Zn，Ni和Au 。通过回收环境危害但有价值的电子废物来恢复和重复使用αU，Ag，Pt，Co，Sn和Al等CMS，含有类似于50种化学元素的有价值的电子废物。因此，基于传统的高科技和尖端技术，因此CMS在各种行业中都有很大要求。

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