湿法炼锌渣协同处理铜熔炼渣的工艺流程设计OA
Process Flow Design of Zinc Hydrometallurgy Slag Synergistic Treatment of Copper Smelting Slag
针对铜熔炼渣中锌、铅回收率低及锌浸出渣中铜回收难、处理能耗高的行业难题,研发了一种"热态供能-还原挥发-缓冷浮选"协同处理工艺.以铜熔炼渣、锌浸出渣为原料,搭配硫化剂与熔剂,在1150℃～1300℃下通入粉煤-空气混合物反应,通过气相回收锌、铅,渣相回收铜、金、银.工艺核心为利用热态铜熔炼渣物理热降低能耗,通过参数调控实现多金属梯级回收.可实现锌、铅回收率均达80%以上,铜总回收率超85%,为两种冶金废渣的资源化利用提供了可行路径.
Aiming at the industrial problems of low recovery rates of zincand lead in copper smelting slag,difficult copper recovery and high treatment energy consumption in zinc leaching residue,a synergistic treatment process of"hot energy supply-reductive volatilization-slow cooling-flotation"was developed.Using copper smelting slag and zinc leaching residue as raw materials,combined with sulfiding agent and flux,the mixture of pulverized coal and air was introduced for reaction at 1150℃～1300℃.Zinc and lead were recovered through gas phase,while copper,gold and silver were recovered through slag phase.The core of the process is to utilize the physical heat of hot copper smelting slag to reduce energy consumption and realize the graded recovery of multi-metals through parameter regulation.The recovery rates of zinc and lead can reach over 80%,the total copper recovery rate exceeds 85%,providing a feasible path for the resource utilization of the two metallurgical waste residues.
刘自亮;仝一喆;占焕武;包洪光;郭徽
长沙有色冶金设计研究院有限公司,湖南 长沙 410019||湖南省铅锌清洁冶炼工程技术研究中心,湖南 长沙 410019长沙有色冶金设计研究院有限公司,湖南 长沙 410019||湖南省铅锌清洁冶炼工程技术研究中心,湖南 长沙 410019南丹县南方有色金属有限责任公司,广西 河池 547204长沙有色冶金设计研究院有限公司,湖南 长沙 410019||湖南省铅锌清洁冶炼工程技术研究中心,湖南 长沙 410019长沙有色冶金设计研究院有限公司,湖南 长沙 410019||湖南省铅锌清洁冶炼工程技术研究中心,湖南 长沙 410019
矿业与冶金
铜熔炼渣锌浸出渣协同处理还原挥发有价金属回收
copper smelting slagzinc leaching residuecollaborative processingreduction volatilizationvaluable metal recovery
《世界有色金属》 2026 (6)
1-4,4
中铝国际工程股份有限公司重点科研项目(湿法炼锌渣大规模高效处理关键技术研究).
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