| 加压氧化浸出工艺的机理研究 |
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| 引用本文： | 张文波.加压氧化浸出工艺的机理研究[J].黄金科学技术,2011,19(5):40-44. |
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| 作者姓名： | 张文波 |
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| 作者单位： | 厦门紫金矿冶技术有限公司; |
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| 摘 要： | 加压浸出法具有流程短、砷浸出率高、浸出时间短及无SO2等有毒物质产生的优点,是预处理含硫、砷金矿石或金精矿的有效手段.在酸性介质中,硫化物、铁化合物与砷化物发生高温氧化的主要反应包括3种形式:硫化物全部被氧化成硫或硫酸盐,反应过程中产生的Fe2+被氧化成Fe3+,砷被氧化成砷酸盐.随着易处理矿石资源日益减少,加压浸出法...
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| 关 键 词： | 金 砷 硫 铁 加压浸出 热压氧化 化学反应 |
| 收稿时间： | 2011-08-25 |
Research on the Mechanism of Pressure Oxidation Leaching Process |
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| ZHANG Wenbo Xiamen Zijin Mining , Metallurgy Technology Co.,Ltd.,Xiamen ,Fujian,China.Research on the Mechanism of Pressure Oxidation Leaching Process[J].Gold Science and Technololgy,2011,19(5):40-44. |
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| Authors: | ZHANG Wenbo Xiamen Zijin Mining Metallurgy Technology Co Ltd Xiamen Fujian China |
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| Affiliation: | ZHANG Wenbo Xiamen Zijin Mining and Metallurgy Technology Co.,Ltd.,Xiamen 361101,Fujian,China |
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| Abstract: | Pressure leaching method,which is an effective method of pretreatment in gold ore or concentrate with sulfur and arsenic,has many advantages:shorten the process,improve leaching rate,not produce the sulfur dioxide.The main reactions of sulfide,iron and arsenic compounds in high temperature oxidation include three approaches:the full oxidation of sulfur to be sulfide or sulfate,divalent iron during the reaction to be ferric,arsenic to be arsenate.As the decreasing resources of easy ore processing,pressure le... |
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| Keywords: | Gold Arsenic Sulfur Iron Pressure leaching Hot-pressure oxidation Chemical reaction |
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