化工进展2017，Vol.36Issue(8)：3066-3073,8.DOI:10.16085/j.issn.1000-6613.2016-2366
铜冶炼渣资源化利用研究进展
Resource utilization of copper smelter slag——a state-of-the-arts review
摘要
Abstract
Large quantities of slag dumped in the open are contributing to the absence of recovery and utilization of valuable metals as well as potential environmental pollution to water and soil arisen by heavy metal contamination.The mineralogical characteristics and researches on recovering valuable metals from typical copper slag produced by pyrometallurgical process were summarized in the present work.The advantage and limitation of outstanding treatment methods which are presently performed to dispose of the slag for the recovery of iron and copper contained were analyzed and discussed,such as mineral separation,hydrometallurgical extraction,pyrometallurgical impoverishment,high temperature oxidation and high temperature reduction,etc.The prospective trends were predicted.The analyzing results obtained showed that the slow cooling followed by flotation and hydrometallurgical extraction are high effective method for recycling of copper contained in the smelting slag with a high content copper.Especially the process of high pressure oxidative acid leaching has excellent application prospect as it can inhibit the leaching of iron.Mineral phase reconfiguration for utilizing resource is effective to recover copper and iron in the slag with low content of copper.The process that calcium oxide is added into the molten slag prior to modification and cooling slow followed by flotation and magnetic separation is prospective to be applied,as the reason that copper and iron contained in the slag can be effectively recycled,and that flotation tailings can be directly used in building materials industry.关键词
废物处理/反应工程/回收/冶炼渣Key words
waste treatment/reaction engineering/recovery/metallurgical slag分类
化学化工引用本文复制引用
廖亚龙,叶朝,王祎洋,曹磊..铜冶炼渣资源化利用研究进展[J].化工进展,2017,36(8):3066-3073,8.基金项目
国家自然科学基金项目(21566017,21266011). （21566017,21266011）
