造锍捕金过程中金在熔锍和熔渣之间的分配行为  

Distribution behavior of gold between matte and slag during gold collection in matte

作　　者：温飞云 杨瑞[1] 罗援诏 熊辉辉[1] 干磊[1] WEN Feiyun;YANG Rui;LUO Yuanzhao;XIONG Huihui;GAN Lei(Faculty of Materials Metallurgy and Chemistry,Jiangxi University of Science and Technology,Ganzhou 341000,China)

机构地区：[1]江西理工大学材料冶金化学学部,赣州341000

出　　处：《江西冶金》2024年第4期289-294,共6页Jiangxi Metallurgy

基　　金：国家重点研究与发展计划项目(2022YFC2904205)。

摘　　要：针对难处理金矿日益增多,造锍捕金法难以实现高效率捕金的问题,本研究通过高温平衡实验,研究温度、熔渣中m(Fe)/m(SiO_(2))和CaO含量等因素对熔锍捕金率的影响,探究不同反应时间金在熔锍和熔渣之间的分配行为。结果表明,当熔炼温度由1250℃升至1300℃时,熔锍的品位及捕金率均得到明显改善;熔锍品位(以Cu含量表示,下同)及捕金率均随m(Fe)/m(SiO_(2))和CaO含量的增加而降低。当m(Fe)/m(SiO_(2))=0.86、CaO含量为4.00%时,熔锍的捕金率高达96.54%,并且高温熔炼反应0.5 h后,金即向熔锍中迁移,直至达到平衡态。In order to improve the recovery rate of gold from refractory gold ores,during the gold collection in matte,this study investigated the effects of temperature,m(Fe)/m(SiO_(2))ratio,and CaO content in the slag on the collection rate of gold through high-temperature equilibrium experiments.Meanwhile,the distribution behavior of gold between the molten metal and slag at different reaction times was also explored.The results show that both the matte grade and its collection rate of gold are significantly improved when the smelting temperature is increased from 1250°C to 1300°C.Furthermore,the matte grade and the collection rate of gold of copper matte decrease with the increase of m(Fe)/m(SiO_(2))and CaO content.When the m(Fe)/m(SiO_(2))is 0.86 and CaO content is 4.00%,the collection rate of gold of copper matte is as high as 96.54%,and after 0.5 h of high-temperature smelting reaction,the gold immediately migrates to the matte until it reaches the equilibrium state.

关 键 词：造锍捕金 难处理金矿 平衡实验 捕金率 分配行为 

分 类 号：TF811[冶金工程—有色金属冶金]