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塔吉克斯坦某含砷金精矿两段焙烧—浸出试验研究
- 余鹤雷|王闯|高起鹏|马忠臣|徐耀强
- 作者单位：
- 沈阳有色金属研究院有限公司|沈阳有色金属研究院有限公司|沈阳有色金属研究院有限公司|沈阳有色金属研究院有限公司|沈阳有色金属研究院有限公司
基金项目：
- isnull
详细信息：
- 作者简介：
- 余鹤雷(1996—),男，工程师，从事选矿工艺研究与选矿药剂研发工作；E-mail:59580480@qq.com
- 通讯作者：
- isnull
- PDF下载
Experimental study on two-stage roasting-leaching of arsenic-bearing gold concentrate in Tajikistan
- English Author：
- CNMC Shenyang Research Institute of Nonferrous Metals Co.,Ltd.|CNMC Shenyang Research Institute of Nonferrous Metals Co.,Ltd.|CNMC Shenyang Research Institute of Nonferrous Metals Co.,Ltd.|CNMC Shenyang Research Institute of Nonferrous Metals Co.,Ltd.|CNMC Shenyang Research Institute of Nonferrous Metals Co.,Ltd.
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
塔吉克斯坦某含砷金精矿金品位73.27 g/t、砷品位6.61 %、硫品位16.78 %，是典型的难处理金精矿,采用直接氰化炭浆工艺处理时，金浸出率仅为88.02 %。为提高金浸出率，进行含砷金精矿两段焙烧—浸出试验研究，制得的焙砂使用环保型浸出剂浸出。最终得到浸渣金品位4.32 g/t,金浸出率95.43 %的良好指标，金浸出率提高7.41百分点，对处理同类型金矿资源起到指导作用。
关键词:
金精矿；焙烧；浸出率；环保浸出剂；砷；硫
Abstract:
The arsenic-bearing gold concentrate in Tajikistan has typical characteristics of refractory gold concentrate,with a gold grade of 73.27 g/t,arsenic grade of 6.61 %,and sulfur grade of 16.78 %.When treated with direct cyanidation CIP process,the gold leaching rate was only 88.02 %.In order to improve the gold leaching rate,experimental studies on two-stage roasting-leaching of arsenic-bearing gold concentrate were conducted,and the roasted slag was leached using the environmentally friendly leaching agent.The final results showed a good indicator of the gold grade in the leached residue at 4.32 g/t,with a gold leaching rate of 95.43 %.This represents an increase of 7.41 percentage points compared to the direct cyanidation CIP process.The study provides guidance for the processing of similar types of gold ore resources.
Keywords:
gold concentrate;roasting;leaching rate;environmentally friendly leaching agent;arsenic;sulfur
