【摘要】 某铁尾矿中含铜0.38%,经一次粗选、两次扫选及四次精选的闭路浮选流程,获得铜品位23.86%、回收率68.86%的铜精矿,再对浮选尾矿进行摇床重选,使尾矿的铜品位降至0.10%,回收率提高到73.55%,重选可提高回收率4.69个百分点。建选矿厂生产品位为18.05%的铜精矿(浮选精矿与重选精矿合并),投资回收期0.8a,经济效益显著。更多还原

【Abstract】 An iron tailing containing 0.38% copper was treated in a closed-circuit flotation flowsheet consisting of one roughing, two scavengings and four cleanings. As a result, a copper concentrate grading 23.86% with a recovery of 68.86% was obtained. The flotation tailing was then gravity-separated by tabling to reduce its copper grade to 0.10% and to improve the copper recovery by 4.69 percentage points to 73.55%. A new concentrator producing a copper concentrate grading 18.05% (combination of the flotation and gravity separation concentrates) will have an investment recovery period of only 0.8 a, an evident economic benefit.更多还原