This paper makes use the original system of pretreating refractory ore by hot-press oxidation to extract gold by cyanide process.

 
  • 通过试验研究,提出了利用难处理矿石的热压氧化预处理的原有体系直接进行氰化提金的新工艺。
今日热词
目录 附录 查词历史