以硝酸为氧化剂、硫酸为添加剂的混酸体系用于铜镍硫化矿尾矿中镍、铜、钴等有价金属的浸出，镍、铜、钴浸出率分别可达91。
A mixed nitric-sulphuric acids is used to recover the valuable metals ni, Cu and co from low-grade Ni-Cu sulfide tailings, the leaching rate of ni, Cu, and co is 91.
本发明涉及金属冶金领域，特别是指一种对于低品位类氧化镍矿中的粗粒分段加酸循环浸出的方法。
The invention relates to the field of metal metallurgy, in particular to a method for segmented acid-adding and circulating leaching of coarse particles in low-grade nickel oxide ores.
建立了常压预浸合金硫化镍矿的氧化浸出数学模型，并进行了验证试验。
The leaching performance of the low grade molybdenite from Jinduicheng Mine is investigated by both bioleaching and chemical oxidation leaching process.
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