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New insights into the extraction of invisible gold in a low-grade high-sulfur Carlin-type gold concentrate by bio-pretreatmentXiao-bin Qiu1,2,Jian-kang Wen1,Song-tao Huang1,Hong-ying Yang2,Mei-lin...="ChDivSummary">To extract gold from a low-grade(13.43 g/t) and high-sulfur(39.94wt% sulfide sulfur) Carlin-type gold concentrate from the Nibao deposit, Guizhou, a bio-pretreatment followed by carbon......
Gold occurrence of Jiaojia gold mine in Shandong province YANG Hong-ying, WANG Si-hui, SONG Xiang-ling, PAN Hao-dan, MA Peng-cheng School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China Received 30 October 2010; accepted 27 May 2011 Abstract: The microscopy and scanning electronic microscopy (SEM) were used to study the gold occurrence of Jiaojia gold mine......
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Study of Immersion Gold Plating Process on Ni-P Substrates刘海萍,李宁,毕四富,黎德育,郑剑,李康摘 要:The immersion gold process based on Ni-P substrate at different... the mixed potential and the gold deposition rate. Bath compositions and operating conditions have much effect on mixed potential. These effects could be attributed to the variation of electrode......
Undersea safety mining of the large gold deposit in Xinli District of Sanshandao Gold MineZhi-xiang Liu, Wen-gang Dang, and Xian-qun He School of Resources and Safety Engineering, Central South... on the safety and efficiency of undersea mining of the large gold deposit in Xinli District of Sanshandao Gold Mine. A series of tests for the physical and mechanical characteristics of rock mass were......
High-temperature chlorination of gold with transformation of iron phaseZheng-Yao Li,Wei-Wei Wang,Kun Yue,Ming-Xing ChenSchool of Civil and Environmental Engineering,University of Science and Technology Beijing摘 要:Gold in cyanide tailings from Shandong Province is mainly encapsulated by hematite and magnetite at distribution rates of 76.49 % and 10.88......
Pretreatment of copper-bearing refractory gold ores by bio-heap leachingYanling Sheng,Qiang Zhang, Huajun Wang, and Yanru Sheng Civil and Environmental Engineering School, University of Science... gold ores associated with rich copper and trapped in pyrite and quartz were studied. With conventional technique (all-sliming cyanidation), the gold recovery rate is only 51.78%. To eliminate......
