硫化物矿石中金属的提取工艺及使用高锰酸铝[Al(MnO_(4))_(3)]氧化剂去除其中杂质:实验设计和工业建模  

Extraction process of metals and removal of impurities from sulfide ores with aluminum permanganate[Al(MnO_(4))_(3)]oxidizer:Experimental design and industrial modeling

作　　者：Alizadeh TAHER Kadkhodayan HOSSEIN 

机构地区：[1]Department of Analytical Chemistry,Faculty of Chemistry,University College of Science,University of Tehran,Tehran,Iran

出　　处：《Journal of Central South University》2023年第7期2149-2165,共17页中南大学学报（英文版）

摘　　要：目前,硫化矿是贵金属的主要来源。在硫化矿处理过程中存在的主要问题之一是其在酸中的溶解度低(K_(sp)<10^(-20)),并产生有毒有害的副产品。在本研究中,使用高锰酸铝[Al(MnO_(4))_(3)]氧化剂溶解硫化矿来提取金属,部分解决了这个问题。基于Aspen Hysys模型组装的Taguchi实验设计作为一种从实验到工业规模的新方案,已应用于Al(MnO_(4))_(3)氧化剂对硫化物矿石的溶解研究。最佳结果已被用作Aspen Hysys软件对该过程进行模拟和灵敏度分析的主要数据。研究了pH、停留温度、搅拌速率、停留时间、Al(MnO_(4))_(3)消耗量、浸出密度、粒度和氧压等参数对从硫化矿中萃取金属效率的影响。在优化条件下,锌、铜和铅的萃取率分别达到77%、73%和70%。Nowadays,sulfide ores are a huge source of precious metals.One of the main problems for working with sulfide ores is their low solubility in acids(K_(sp)<10^(−20))and the production of toxic and harmful by-products.In the present study,the use of aluminum permanganate[Al(MnO_(4))_(3)]oxidizer for sulfide ore dissolution and metal extraction has partially solved this problem.Taguchi experimental design based on Aspen Hysys modeling assembled has been applied to dissolution study of sulfide ores with Al(MnO_(4))_(3)oxidizer as a novel plan from experimental to industrial scale.The optimum results have been utilized as the primary data for the simulation and sensitivity analysis of the process by Aspen Hysys software.The effects of operating parameters including pH,retention temperature,agitation rate,retention time,amount of Al(MnO_(4))_(3)consumed,leaching density,grain size and oxygen pressure have been investigated on the extraction efficiency of metals from sulfide ores.Under optimized conditions,Zn,Cu,and Pb metal extraction efficiency was obtained above 77%,73%,and 70%,respectively.

关 键 词：高锰酸铝 硫化矿 Aspen Hysys软件 Taguchi实验设计 

分 类 号：TF803[冶金工程—有色金属冶金]