摘要
基于多相平衡原理和铜侧吹氧化熔炼过程机理,采用化学平衡常数法构建铜侧吹氧化熔炼过程多相平衡数学模型,重点考察了氧料比(R_(OC))、富氧浓度(C_(Oxy))、石英熔剂率(R_(SiO_(2)))、燃煤率(R_(Coal))及石灰熔剂率(R_(CaO))对元素分配行为的影响,结果表明:提高R_(OC)或降低R_(Coal),铜锍和熔炼渣中Cu、Fe、S元素含量分别下降和上升,伴生元素在铜锍和熔炼渣中的分配率分别下降和升高;提高R_(SiO_(2))或R_(CaO),产物中Cu、Fe、S元素的分配率略微变化,伴生元素中仅烟尘中的Au和Ag元素含量略微上升;提高C_(Oxy)对Cu、Fe、S元素的影响几乎无明显变化。
Based on the principles of multi-phase equilibrium and the mechanism of copper side-blown smelting,the multi-phase equilibrium mathematical model of copper side-blown oxidation smelting was constructed by the chemical equilibrium constant method.The effects of oxygen-to-material ratio(R_(OC)),quartz solvent ratio(R_(SiO_(2))),lime solvent ratio(R_(CaO)),oxygen-enriched concentration(COxy),and coal burning rate(R_(Coal))on element partitioning behavior were investigated.The results show that the contents of Cu,Fe,and S in copper matte and smelting slag decrease and increase,respectively,and the distribution rates of associated elements in copper matte and smelting slag decrease and increase,respectively,with the increase of R_(OC) or the decrease of R_(Coal).With the increase of R_(SiO_(2)) or R_(CaO),the distribution ratios of Cu,Fe,and S elements among the product changed slightly,and the content of Au and Ag in the dust increased slightly.Increasing COxy has almost no significant effect on Cu,Fe,and S during the process.
作者
李明周
陈强
冯雨辰
黄金堤
钟立桦
何发友
LI Mingzhou;CHEN Qiang;FENG Yuchen;HUANG Jindi;ZHONG Lihua;HE Fayou(Zijin Mining Group Co.,Ltd,Longyan 361000,China;School of Metallurgical Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,China;Chifeng Jintong Copper Industry Co.,Ltd.,Chifeng 024000,China)
出处
《有色金属(中英文)》
北大核心
2025年第8期1343-1355,共13页
Nonferrous Metals
基金
国家自然科学基金资助项目(52364047)
江西省科技厅自然科学基金项目(20212BAB204026)
中国博士后科学基金项目(2019M662268)
江西省博士后择优资助项目(2018KY15)。
关键词
铜侧吹熔炼
化学平衡常数法
元素分配
热力学
copper side-blown smelting
chemical equilibrium constant method
elements distribution
thermodynamics
