论文部分内容阅读
新制定的分离铜镍混合精矿的工艺的关键是,在混合精矿浮选分离前,将固体浓度为20%时矿浆在石灰介质中充气,此时铜与镍的分离选择性高,既不需要使用氰化物,也不需要用蒸汽加热矿浆。研究结果表明,新工艺获得的铜精矿铜品位和回收率分别为18%和87%,镍精矿镍品位和回收率分别为11.5%和98%,其中铜含量为0.7%。该工艺还降低了生产费用。
The key to the newly developed process for the separation of copper-nickel concentrates is the pulping of the slurry in a lime medium at a solids concentration of 20% prior to the mixed-concentrate flotation separation, where the separation selectivity of copper and nickel is high, both Cyanide does not need to be used and it is not necessary to heat the slurry with steam. The results show that the copper grade and recovery of the copper concentrate obtained by the new process are respectively 18% and 87%, the nickel grade and the recovery rate of the nickel concentrate are 11.5% and 98% respectively, and the copper content is 0.7%. The process also reduces production costs.