【摘要】：研究了微波焙燒預(yù)處理對(duì)微細(xì)浸染型難處理金礦浸出的影響。正交試驗(yàn)表明,各因素對(duì)浸出率影響程度大小依次為:微波焙燒溫度、焙燒時(shí)間、浸出時(shí)間、浸出劑TY-3用量和氫氧化鈉用量。在微波焙燒溫度550℃,焙燒時(shí)間40 min,浸出劑TY-3用量14 kg/t,氫氧化鈉用量8 kg/t,浸出10 h的優(yōu)化條件下,浸出率達(dá)94.8%。XRD分析結(jié)果表明,經(jīng)微波加熱焙燒后,原礦中黃鐵礦轉(zhuǎn)化為赤鐵礦。與馬弗爐焙燒對(duì)比,微波焙燒可能具有選擇性加熱作用,更有利于礦石中包裹金的暴露。
[Abstract]:The effect of microwave roasting pretreatment on the leaching of micro-disseminated refractory gold deposits was studied. The orthogonal test showed that the influence of various factors on the leaching rate was as follows: microwave roasting temperature, roasting time, TY-3 dosage and sodium hydroxide dosage. Under the optimum conditions of microwave roasting temperature 550 鈩，

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