• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>XXI International Mineral Processing Congress >RECYCLING OF RARE EARTH LUMINOPHORES ORIGINATING FROM DISCHARGE LAMPS
【24h】

RECYCLING OF RARE EARTH LUMINOPHORES ORIGINATING FROM DISCHARGE LAMPS

机译：源自放电灯的稀土发光二极管的回收

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In Germany, an annual amount of approximately 100 million discharge lamps must be disposed of as special waste. While several processes exist for the recycling of the glass, it has so far been impossible to recover the luminophores. The existing proposals for the recovery of luminophores are too cost-intensive. As part of a research project, sponsored by the German Research Council, the TU Clausthal has developed a wet chemical process for the recycling of luminophores, which allows the recovery of pure yttrium/europium oxides, as well as a reusable mixture of aluminate luminophores. The process consists of acid and alkaline leaching followed by precipitation and calcination. Pilot tests have proven the economic efficiency of this process; the production costs were determined at 18 Euro per kilogram yttrium/ europium oxide.
机译：在德国，每年必须将约1亿个放电灯作为特殊废物进行处理。尽管存在用于玻璃再循环的几种方法，但是迄今为止不可能回收发光体。回收发光体的现有建议过于昂贵。作为由德国研究委员会赞助的研究项目的一部分，克劳斯塔尔大学（TU Clausthal）开发了一种湿化学方法来回收发光体，从而可以回收纯的钇/ eur氧化物以及可重复使用的铝酸盐发光体混合物。该过程包括酸和碱浸提，然后进行沉淀和煅烧。试点测试证明了该过程的经济效率。生产成本确定为每千克钇/氧化euro 18欧元。

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