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某金矿石提金工艺试验研究
- 作者：
- 匡晨|李黎婷|张恒星|郭金溢|迟晓鹏|池荷婷
- 作者单位：
- 低品位难处理黄金资源综合利用国家重点实验室&厦门紫金矿冶技术有限公司|低品位难处理黄金资源综合利用国家重点实验室&厦门紫金矿冶技术有限公司|低品位难处理黄金资源综合利用国家重点实验室&厦门紫金矿冶技术有限公司|低品位难处理黄金资源综合利用国家重点实验室&厦门紫金矿冶技术有限公司|福州大学紫金矿业学院|低品位难处理黄金资源综合利用国家重点实验室&厦门紫金矿冶技术有限公司
基金项目：
- isnull
详细信息：
- 作者简介：
- 匡晨（1993—），女，福建厦门人，工程师，从事冶金工程化学分离技术研究工作；福建省厦门市翔安区舫山南路3号，厦门紫金矿冶技术有限公司，361115；E-mail:kuangchen616@163.com
- 通讯作者：
- isnull
- PDF下载
Experimental study on the ore-dressing process of a gold ore
- English Author：
- State Key Laboratory for Comprehensive Utilization of Low-grade Refractory Gold Ores&Xiamen Zijin Mining & Metallurgy Technology Co.,Ltd.|State Key Laboratory for Comprehensive Utilization of Low-grade Refractory Gold Ores&Xiamen Zijin Mining & Metallurgy Technology Co.,Ltd.|State Key Laboratory for Comprehensive Utilization of Low-grade Refractory Gold Ores&Xiamen Zijin Mining & Metallurgy Technology Co.,Ltd.|State Key Laboratory for Comprehensive Utilization of Low-grade Refractory Gold Ores&Xiamen Zijin Mining & Metallurgy Technology Co.,Ltd.|Zijin School of Mining,Fuzhou University|State Key Laboratory for Comprehensive Utilization of Low-grade Refractory Gold Ores&Xiamen Zijin Mining & Metallurgy Technology Co.,Ltd.
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
某金矿石中金主要以硫化矿物包裹金形式存在，分布率为55.71 %，其次为裸露金，裸露金主要为连生金，仅见少量解离金。针对该矿石特性，进行了全泥氰化浸出、预处理—氰化浸出工艺对比，主要考察了焙烧氧化、酸性加压氧化、碱性常压加温氧化3种预处理工艺。结果表明：全泥氰化浸出金浸出率仅为29.2 %，预处理—氰化浸出可获得较高的金浸出率；相比其他2种预处理工艺，焙烧氧化预处理工艺综合效果相对较好，焙烧氧化—细磨—氰化浸出工艺金浸出率为90.8 %。
关键词:
难处理金矿石；预处理；焙烧氧化；酸性加压氧化；碱性常压氧化；全泥氰化
Abstract:
The gold in a gold ore is dominated by encased gold in sulfide minerals,accounting for 55.71 %,followed by exposed gold.Exposed gold is mainly associated gold and dissociated gold is rarely seen.According to the ore property,the study compared all-sliming cyanidation leaching and pretreament-cyanidation leaching processes,mainly investigating 3 pretreatment processes namely roasting oxidation,acidic pressure oxidation,alkaline atmospheric pressure heating oxidation.The results show that the gold leaching rate by all-sliming cyanidation leaching is only 29.2 %,and higher gold leaching rate can be obtained by pretreatment-cyanidation leaching;compared to the other 2 pretreatment processes,roasting oxidation pretreatment process has a better comprehensive effect and the gold leaching rate of roasting oxidation-fine grinding-cyanidation leaching process is 90.8 %.
Keywords:
refractory gold ore;pretreatment;roasting oxidation;acidic pressure oxidation;alkaline atmospheric pressure oxidation;all-sliming cyanidation
