mining project presure of oxidation gold concentrate china
The first pressure oxidation project of refractory gold ore in China ...
Compared with the original process, the comprehensive metal recovery rate of the mine will be increased by at least 30%. At the same time, about 50 tons of gold resources that
Key Projects-Zijin Mining Group Co., Ltd.
Debottlenecking and Expansion. To address the world-class challenge of processing fine-grained refractory gold ores high in arsenic, sulfur, and carbon in the Shuiniudong Gold
Pressure oxidation of double refractory gold concentrates
2013年1月1日 PDF The reasons for gold-bearing materials refractory nature and behaviour features of carbonaceous matter during pressure
Zijin Mining and Metallurgy Design and Research Institute
Development of key technologies in terms of process and equipment on gold extraction from refractory high-arsenic and high-carbon gold ore through pressure oxidation (POX)
Improved recovery of a low-grade refractory gold ore
2014年7月1日 It is also found that the pressure oxidation pre-treatment of the concentrates prior to cyanidation may yield high gold recoveries of over than 83%. In
Non-cyanide Extraction of Gold from Carlin-Type Gold
2022年8月5日 The extraction of gold and sulfide ion oxidation rate in oxygen pressure residue were calculated to evaluate the effect of acid pressure oxidation pretreatment.
Pilot plant pressure oxidation of a refractory gold-silver concentrate
Pressure oxidation tests have been conducted by Sherritt for a refractory gold-silver project in China. The feed contained 39 g/t Au and 970 g/t Ag; the major gold-bearing
Refractory gold reserves: Challenges and opportunities
2021年3月23日 Refractory gold reserves, which require more sophisticated treatment methods in order to achieve oxide-ore recovery rates, correspond to 24 percent of current gold reserves and 22 percent
Gold recovery from refractory gold concentrates by pressure
2019年1月1日 In this study, the flotation gold concentrate before and after pressure oxidation (POX) was analyzed. The analysis of the Eh-pH diagram revealed that
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