有色金属科学与工程2026，Vol.17Issue(4)：561-568,8.DOI:10.13264/j.cnki.ysjskx.2026.04.008
高铝金铜精矿造锍熔炼渣型研究
Research on slag types in matte smelting of high-alumina gold-copper concentrate
摘要
Abstract
Coordinated smelting of gold and copper concentrates is one of the important technological routes for the combined extraction of copper and gold.With variations in feedstock composition,regulating the physical and chemical properties of the slag is a key measure to ensure production efficiency and increase the direct recovery rates of gold and copper.Based on the high-aluminum gold-copper concentrate of a certain copper smelting plant,this paper studied the effects of different Al2O3 contents and Fe/SiO2 ratios,as well as the CaO contents in the slag,on the gold and copper contents in the slag during the smelting of gold-copper concentrate,analyzed the phase transformation rules with different CaO contents,and explored the mechanism of CaO regulation on copper slag types.The results showed that increasing Al2O3 content reduced the direct recovery rates of gold and copper.Modifying the copper slag with CaO effectively lowered the gold and copper contents in the slag,and increasing the mass ratio of Fe to SiO2 reduced the required amount of CaO addition.The influence of CaO on the viscosity of slag mainly depended on the difference between the viscosity reduction due to the formation of low-melting-point phases and decreased polymerization degree,and the viscosity loss from high-melting-point phases.When the Al2O3 content in the slag was 9%,Fe/SiO2 was 1.05,and the CaO content was 10%,the gold and the copper contents in the slag were reduced to 0.1 g/t and 0.42%,respectively.关键词
金铜精矿/造锍熔炼/Al2O3/渣型调控Key words
gold copper concentrate/matte smelting/Al2O3/slag type regulation分类
矿业与冶金引用本文复制引用
田博,石瑀,彭珊,王俊娥,蒋开喜..高铝金铜精矿造锍熔炼渣型研究[J].有色金属科学与工程,2026,17(4):561-568,8.基金项目
国家重点研发计划资助项目(2023YFC2907800) （2023YFC2907800）
