Thermodynamic modeling of antimony removal from complex resources in copper smelting process

作     者：Song-song WANG Qin-meng WANG Xue-yi GUO Qing-hua TIAN Sheng-li QU Zhi WANG Ming-xing HUANG 王松松;王亲猛;郭学益;田庆华;曲胜利;王智;黄明星

作者机构：School of Metallurgy and EnvironmentCentral South UniversityChangsha 410083China National&Regional Joint Engineering Research Center of Nonferrous Metal Resources RecyclingChangsha 410083China Shandong Humon Smelting Co.Ltd.Yantai 264109China Dongying Fangyuan Nonferrous Metals Co.Ltd.Dongying 257091China 

出 版 物：《Transactions of Nonferrous Metals Society of China》 (中国有色金属学报（英文版）)

年 卷 期：2022年第32卷第12期

页      面：4113-4128页

核心收录：

学科分类：080603[工学-有色金属冶金] 08[工学] 0806[工学-冶金工程] 

基　　金：the financial supports from the National Natural Science Foundation of China(Nos.51904351,51620105013,U20A20273) the National Key R&D Program of China(Nos.2018YFC1900306,2019YFC1907400) the Major Science and Technology Innovation Project of Shandong Province,China(No.2019JZZY010404) the Innovation Driven Project of Central South University,China(No.2020CX028) 

主　　题：copper oxygen-enriched smelting Sb reaction mechanism distribution behavior 

摘      要：This work investigated the reaction mechanism of Sb in copper smelting process. The difference of multi-phase distribution of Sb in four typical copper smelting processes was analyzed. A multi-phase equilibrium model of the oxygen-enriched bottom-blow copper smelting process was developed. The impacts of Cu, S, and Sb concentrations in raw materials on Sb distribution in multiphases were researched. This model was also used to investigate the effect of process factors such as copper matte grade, oxygen-enriched concentration, smelting temperature, and oxygen/ore ratio(ratio of oxygen flow rate under standard conditions to concentrate charge rate) on Sb distribution behavior. The results showed that calculation data were in good agreement with the actual production results and literature data. Increasing the Cu content and decreasing the S and Sb contents in the concentrate, increasing the copper matte grade, oxygen/enriched concentration, and oxygen-ore ratio, and at the same time appropriately reducing the smelting temperature are conducive to the targeted enrichment of Sb into the slag. Modeling results can provide theoretical guidance for the clean and efficient treatment of complex resources and the comprehensive recycling of associated elements.