论文部分内容阅读
处理难选金矿生物氧化法已于 1 988年商业化了。最近 1 0年来 ,生物氧化法已发展成为一个成熟的商业上可行的工艺 ,已在 5个矿山得到应用 :巴西的圣本托、澳大利亚的哈伯拉特、澳大利亚的威卢纳、加纳的阿散蒂和秘鲁的塔姆博拉奎。该法目前正在研究之中 ,其效率和经济效益均得到改善 ,用它代替常规的处理难选金的方法 (如焙烧和加压氧化 )具有很大的吸引力。细菌的培养很旺盛 ,能经受住操作厂试验条件的正常波动。生物氧化厂操作简单 ,适用于边远的地区。该法按比例放大的潜力已得到证实 ,它可用于处理大的难选矿体。该工艺对环境影响小。选矿溢流中和可产生能满足最严格的环境法规的沉淀。
The bio-oxidation process for the treatment of refractory gold was commercialized in 1988. Biooxidation has evolved into a mature, commercially viable process in the last 10 years and has been used in five mines: San Bento in Brazil, Haberlat in Australia, Willuna in Australia, Ghana Santee and Tambolakui of Peru. The law is currently under investigation and its efficiency and economic benefits have been improved, and it is attractive to use it in place of the conventional methods of handling refractory gold, such as roasting and pressurized oxidation. Bacterial cultivation is very strong, can withstand the normal fluctuations in the operating conditions of the test plant. Biological oxidation plant is simple, suitable for remote areas. The potential of this method to scale up has been demonstrated and can be used to deal with large refractory ore bodies. The process has little impact on the environment. Mineral processing overflow and can produce the precipitation can meet the most stringent environmental regulations.