关键词: 铜尾矿, 资源化利用, 螺旋溜槽抛尾, 铜硫依次浮选, 尾矿免烧砖

Abstract: The utilization as resource of tailings from a Shaanxi copper mine was studied, including their re-concentration and the brick-making by the re-concentration tailings.The result shows that the pre-concentration of the tailings via spiral chute can discard tailings of an 85.53% yield, and a qualified copper concentrate grading 15.86% at an 83.24% recovery and a qualified sulfur concentrate grading 41.68% at a 85.96% recovery can be obtained by grinding and sequential flotation of copper and sulfur of the pre-concentrated concentrate.The total tailings of re-concentration, when mixed with cement and local construction-use sand, can be made into MU10 unfired bricks.

Key words: Copper tailings, Resource-like utilization, Tailing discarding via spiral chute, Copper-sulfur sequential flotation, Unfired bricks of tailings