|
|||||
|
|
| 高砷难处理金精矿细菌氧化-氰化提金 | |
| 引用本文： | 杨玮,覃文庆,刘瑞强,任允超.高砷难处理金精矿细菌氧化-氰化提金[J].中国有色金属学报,2011,21(5). |
| 作者姓名： | 杨玮 覃文庆 刘瑞强 任允超 |
| 作者单位： | 1. 中南大学资源加工与生物工程学院,长沙,410083 2. 山东黄金矿业(莱州)有限公司精炼厂,莱州,261441 3. 山东黄金集团烟台设计研究工程有限公司,烟台,264006 |
| 基金项目： | 国家重点基础研究发展计划资助项目 |
| 摘 要： | 通过在高砷金精矿中配入不同比例的低砷碳酸盐型金精矿,使其所含硫、砷及铁等主要矿物成分含量发生变化,研究给矿中铁砷摩尔比对难处理高砷金精矿细菌氧化一氰化浸出效果的影响.结果表明:含砷金精矿中铁砷摩尔比直接影响细菌预氧化的效果,同时也影响细菌的活性和溶液中铁砷摩尔比的变化,给矿中铁砷摩尔比越高,溶液中的铁砷摩尔比也越高,且随着给矿中铁砷摩尔比的增加,溶液中铁砷摩尔比的变化幅度加大,给矿中铁砷摩尔比介于4.6~2之间,有利于细菌预氧化和氰化浸出,铁、砷氧化率分别由6.14%和7.38%提高到89.90%和93.60%,金、银浸出率分别由64.18%和35.93%提高到97.78%和88.83%,较好地改善细菌氧化效果,稳定和优化细菌预氧化过程. |
| 关 键 词： | 高砷难处理金精矿 细菌氧化 氰化提金 |
Extraction of Au from high arsenic refractory gold concentrate by bacterial oxidation-cyanidation |
|
| YANG Wei,QIN Wen-qing,LIU Rui-qiang,REN Yun-chao.Extraction of Au from high arsenic refractory gold concentrate by bacterial oxidation-cyanidation[J].The Chinese Journal of Nonferrous Metals,2011,21(5). | |
| Authors: | YANG Wei QIN Wen-qing LIU Rui-qiang REN Yun-chao |
| Affiliation: | YANG Wei 1,QIN Wen-qing 1,LIU Rui-qiang 2,REN Yun-chao 3(1.School of Resources Processing and Bioengineering,Central South University,Changsha 410083,China,2.The Refinery of Shandong Gold Mining Co.,Ltd.,Laizhou 261441,3.Engineering Design & Research Co.Ltd.,Shandong Gold Group,Yantai 264006,China) |
| Abstract: | Through blending low arsenic carbonate gold concentrate with different ratios into high arsenic-containing gold concentrate and changing the content of major ores,such as sulfur,arsenic and iron,the effect of iron-arsenic molar ratio on the bacteria oxidating-cyaniding extraction from high arsenic-containing refractory gold concentrate was investigated.The result shows that the iron-arsenic mole ratio of arsenic-containing gold concentrate has direct effect on the bacteria oxidation,bacteria activity and ir... |
| Keywords: | high arsenic refractory gold concentrate bacterial oxidation cyaniding gold extraction |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |