Chinese core journals in science and technology
Chemical Abstracts Service (CAS) database
EBSCO Academic Database in the United States
Japan Science and Technology Agency Database (JST)
In response to the problem of excessive sodium cyanide consumption and the difficulty in comprehensive recovery of valuable metals such as gold,copper,sulfur,and iron in a copper-bearing gold ore during the all-sliming cyanide leaching process,a new process flow is adopted for beneficiation.The experimental results indicate that through a process flow consisting of bulk flotation-copper extraction from flotation concentrate by roasting and acid leaching-acid leaching tailings cyanide leaching for gold-environmentally friendly gold extraction from flotation tailings,the recovery rates of gold,silver,copper,and sulfur are 94.38 %,92.01 %,89.19 %,and 95.12 %,respectively;furthermore,an iron concentrate with an iron grade of 65.85 % and an iron productivity of 30.05 % can be obtained,achieving comprehensive recovery of valuable elements such as gold,copper,sulfur,and iron from the copper-bearing gold ore and significantly improving economic benefits and resource utilization.