CHINA MINE ENGINEERING

Based on the typicality analysis of copper smelting slag beneficiation, this paper summarized the general measures to obtain good technical and economic indicators, such as high temperature slow cooling of slag ladle, pre-crushing, semi autogenous grinding process, stage-grinding and stage-separation, cancellation of separate regrinding of middling, combination of reagent, iron recovery by magnetic separation and improvement of filtration performance. this paper puts forward the typical process applicable for slag beneficiation as follows: “Primary ore crushing+Semi-autogenous grinding+Coarse grinding+Speed flotation+Regrinding+Multiple flotation+Tailings magnetic separation”, this process has good technical and economic indexes and can be popularized in similar projects.