mid-low-grade diatomite ore 低品位硅藻土的
mid low grade phosphate rock 中低品位磷矿
mid-low-grade phosphate rock 中低品位磷矿
mid-low grade collophanite ore 中低品位胶磷矿
Based on review and analysis on occurrence characteristic of phosphate rock resources of Yichang, the feasible beneficiation is adopted to process a mid-low grade collophanite ore.
综述并分析了宜昌磷资源赋存特征，提出了适宜的选矿工艺。
It's a mid scale and its ore belongs to low grade structural altereds tyle, limonite, pyrite are mainly gold carriers.
矿石以低品位构造蚀变岩型为主，褐铁矿、铁矿是主要的载金矿物。
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