Primary gold ore from Bangi, Guizhou, belongs to a clastic-type, finely disseminated, refractory particles. It is difficult to extract gold from the ore by cyanide infusing.
2
因钒钛磁铁矿资源组成复杂、品位低、钙镁含量高、难选冶,钛资源综合利用率仅为14.5%。
Due to the complexity and lower grade of resource, the comprehensive utilization of titanium is only 14.5%.
3
同时论述了焙烧氧化、热压氧化、生物氧化和化学氧化等难选冶矿石预处理技术的现状及发展趋势。
It also presents recent status and prospects of pretreatment processes such as roasting, pressure oxidation, biooxidation and chemical pretreatment.