|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||7th International Symposium on High Temperature Metallurgical Processing
||Enrichment of Gold in Low Grade Copper Matte from Arsenical Refractory Gold Concentrate via Matte Smelting Method
||Zhang Duchao, Xiao Qingkai, Yang Tianzu, Liu Weifeng, Chen Lin
|On-Site Speaker (Planned)
To solve the problem of low leaching ratio of direct gold cyanide leaching from arsenical refractory gold concentrate, this paper proposed a matte smelting process for gold enrichment in low grade copper matte. The effects of copper content in the mixed material, ratio change in slag type, smelting temperature and reaction time on recovery rate of gold and copper were investigated. The experimental results indicated that the recovery rate of gold and copper increases with the increase of copper content in the mixed materials, temperature and reaction time. It is also noted that the recovery rate of gold and copper was respectively 98.16% and 96.39% when the addition of copper content in the mixed material is 3%, slag type of CaO/SiO2 and FeO/SiO2 is 0.6 and 0.9 in 1250℃ and the time of reaction is 40min. Most of the arsenic is oxidized into As2O3 existed in the dust. The results showed that the matte smelting method could achieve efficient recovery of gold and copper.
||Planned: A print-only volume