某难选金矿石选矿试验研究  

Beneficiation Experiment of Refractory Gold Ore

作　　者：牛芳银 郭彩莲 宁新霞 王重阳 翟旭东 NIU Fangyin;GUO Cailian;NING Xinxia;WANG Chongyang;ZHAI Xudong(Xi′an Northwest Geological Institute of Nonferrous Metals Co.,Ltd.,Xi′an 710054,Shaanxi,China;Shaanxi Provincial Engineering Technology Center for Comprehensive Utilization of Mineral Resources,Xi′an 710054,Shaanxi,China)

机构地区：[1]西安西北有色地质研究院有限公司,陕西西安710054 [2]陕西省矿产资源综合利用工程技术研究中心,陕西西安710054

出　　处：《矿冶工程》2024年第5期79-83,共5页Mining and Metallurgical Engineering

摘　　要：对某难选金矿石进行了详细工艺矿物学研究,并在此基础上开展提金试验研究。结果表明,矿石中金矿物粒度细且分散分布于载金矿物中。采用强化浮选工艺回收该难选金矿石,浮选时添加调整剂XPT511能有效提高金的浮选指标,闭路浮选试验获得了金品位22.91 g/t、回收率62.85%的金精矿。Based on the detailed process mineralogy study of a kind of refractory gold ore,an experimental research was carried out for gold extraction.It is found that the gold mineral in such ore are fine-grained and dispersed in gold-carrying minerals.It is proposed that such refractory gold ore be processed with the technique of enhanced flotation,and an addition of regulator XPT511 can effectively improve the index of gold flotation.It is shown that a close-circuit flotation test results in a gold concentrate grading 22.91 g/t Au at 62.85%recovery.

关 键 词：难选金矿石 赋存状态 微粒金 浮选 金 

分 类 号：TD923[矿业工程—选矿]