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| 微细浸染型金矿超声波强化预处理实验研究 |
| Research on Ultrasonic-enhanced Pretreatment of Micro-disseminated Gold Ore |
| Received:January 30, 2018 |
| DOI： |
| 中文关键词: 微细浸染型金矿 超声波 两段预处理 非氰浸出 |
| 英文关键词: micro-disseminated gold ore ultrasound wave two-stage pretreatment non-cyanide leaching |
| 基金项目:国家自然科学基金(51864010)、贵州省科技计划项目(黔科合基础[2017]1404)、贵州省科技计划项目(黔科合平台人才[2018]5781)。 |
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| 中文摘要: |
| 针对微细浸染型金矿的矿石性质，采用超声波强化两段预处理-非氰浸出工艺进行研究，考察氧化剂用量、预处理时间、浸出时间、超声波功率、超声波时间对金浸出率的影响。结果表明，在超声波功率为120 W、时间为150 min，强氧化剂TY-1用量为6 kg/t、催化剂TY-2用量为2 kg/t、氧化时间为4 h、氢氧化钠用量为20 kg/t、碱预处理时间为10 h、非氰浸出剂TY-3用量为10 kg/t、浸出时间2 h的条件下，可获得86.43%的金浸出率。 |
| 英文摘要: |
| Based on the properties of the micro-disseminated gold ore, a two-stage pretreatment method enhanced by ultrasonic was adopted before the non-cyanide leaching process. The influence of amount of the oxidant, enhanced pretreatment time, leaching time, ultrasonic power, and ultrasonic time on the gold leaching rate was investigated. The results showed that the gold leaching rate of 86.43% can be achieved, when the power of the ultrasonic wave was 120 W and the time was 150 minutes and the amount of strong oxidizing agent TY-1 was 6 kg/t and the amount of catalyst TY-2 was 2 kg/t and the oxidation time was 4 hours and the amount of sodium hydroxide was 20 kg/t and the alkali preprocessing time was 10 hours and the amount of non-cyanide leaching agent TY-3 was 10 kg/t. |
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