Iron separation process for copper smelting slag

According to the separation process and the reagent system, after the copper smelting slag is subjected to ore grinding and grading operation, high-grade copper and iron ore concentrates are obtained through separation of the technological processes of flotation, magnetic separation, desliming and reverse flotation in sequence. The separation process mainly aims at solving the problem that high-grade iron ore concentrate is difficult to obtain only through magnetic separation due to the fact that the copper slag contains a large number of iron elements but the mineral composition of iron is extremely complex, and a large number of intergrowth bodies exist, the separation process has the advantages of being simple, high in separation efficiency, low in reagent consumption and the like, and efficient recovery of copper smelting slag iron extraction and solid waste resource reutilization are achieved. 本发明公开了一种铜冶炼渣选铁的分选工艺及药剂制度，铜冶炼渣经磨矿分级作业后，依次通过浮选-磁选-脱泥-反浮选工艺流程分选获得高品位的铜、铁精矿。本发明所述分选工艺主要针对铜渣含有大量的铁元素但铁的矿物组成极为复杂，存在大量连