难浸金矿预处理技术及其研究进展

随着易浸金矿的不断减少，难浸金矿应用比重越来越大，总结难浸金矿的预处理技术及其研究进展有重要意义。简要分析了难处理金矿难浸的原因，指出难浸金矿在浸出前进行预处理的必要性，对加压氧化法、焙烧法、生物预氧化法和超细磨法等难浸金矿的预处理方法以及新的预处理技术进展进行了总结，评述了各预处理方法的优缺点，在此基础上，对难处理金矿的预处理技术研究前景进行了展望。

Research Progress of Pretreatment Technologies of Refractory Gold Ores

With the increasingly exhausting of easily leachable gold, the applied proportion of refractory gold ores is growing larger.It is necessary to study and summarize pretreatment technologies of refractory gold ores and its development.Reasons why it is hard to leach out refractory gold ores were briefly analyzed, the pretreatment of refractory gold ores before the leaching is necessary.The pressurized oxidation method,roasting method, biological oxidation method, ultrafine grinding and the new pretreatment technologies of refractory gold ores were summarized.In addition,the advantages and disadvantages of each method were reviewed.The prospects and trends of their development were also discussed.