中国资源综合利用2025，Vol.43Issue(6)：1-6,6.DOI:10.3969/j.issn.1008-9500.2025.06.001
中亚难处理含砷含碳金精矿的提金试验研究
Experimental Study on Gold Extraction from Refractory Arsenic and Carbon Containing Gold Concentrates in Central Asia
摘要
Abstract
Gold extraction experiments are conducted on a refractory arsenic and carbon containing gold concentrate from Central Asia.This type of gold mine is treated using the common roasting cyanide method,with a gold recovery rate of only 84.26%.The main reason is that iron minerals contain a high proportion of gold,which makes it impossible to recover this part of the gold.Based on the actual conditions of the local industry,a treatment process of roasting desulfurization,dearsenic and decarbonization-concentrated acid shearing to remove encapsulation-cyanide leaching is proposed,which not only improves the recovery rate of gold,but also solves the problem of local sulfuric acid being unable to be absorbed.Research has shown that gold concentrate is first subjected to oxidative roasting at a temperature of 600℃for 2 h,then the roasted sand is acid leached at a temperature of 90℃for 2.5 h with a sulfuric acid concentration of 50%,finally,cyanide treatment is performed on the acid leaching residue,resulting in a gold leaching rate of 93.93%.关键词
难处理金精矿/脱硫/脱砷/脱碳/浓酸浸出/氰化浸出Key words
refractory gold concentrate/desulphurization/dearsenic/decarbonization/concentrated acid leaching/cyanide leaching分类
矿业与冶金引用本文复制引用
靳冉公,高崇,任坤,黄海辉,王为振..中亚难处理含砷含碳金精矿的提金试验研究[J].中国资源综合利用,2025,43(6):1-6,6.基金项目
国家重点研发计划项目(2018yfc1903106) （2018yfc1903106）
矿冶科技集团有限公司科研基金重点项目(02-2004) （02-2004）
矿冶科技集团有限公司科技产业发展基金项目(04602021-122). （04602021-122）
