摘要
某锌浸出渣的银品位为20g/t,经MLA和银物相分析,发现其矿物组成主要以黄铁矿等硫化矿为主,且具有矿物单体解离度较低、银物相分布复杂等特点。结合该浸出渣的矿物性质特点,采用强化再磨和强拉强压的工艺进行浮选试验。试验结果表明:以石灰和水玻璃为抑制剂,油酸钠为捕收剂,采用一次粗选一次扫选浮选工艺流程可获得银品位和银回收率分别为54.00g/t、48.80%的银精矿。
The silver grade of a zinc leaching residue is 20g/t.Through MLA and silver phase analysis,it is found that its mineral composition is mainly sulfide minerals such as pyrite,and it has the properties of low dissociation degree of mineral monomer and complex silver phase distribution.Combining the mineral properties of the leaching residue,the flotation test was carried out by the process of enhanced grinding and oxidation flotation.The test results show that with lime and water glass as inhibitors and sodium oleate as collectors,silver concentrate with silver grade and silver recovery of 54.00g/t and 48.80%can be obtained through the flotation process of one roughing and one sweeping.
作者
陈伟
张志豪
陈彤
王亮
卜显忠
CHEN Wei;ZHANG Zhihao;CHEN Tong;WANG Liang;BU Xianzhong(School of Resources Engineering,Xi'an University of Architecture and Technology,Xi'an,Shaanxi 710055,China)
出处
《矿业研究与开发》
CAS
北大核心
2021年第12期149-153,共5页
Mining Research and Development
基金
国家自然科学基金项目(51904221)
矿物加工国家重点实验室开放基金项目(BGRIMM-KJSKL-2020-05).
关键词
锌浸出渣
MLA
物相分析
氧化浮选
银精矿
Zinc leaching residue
MLA
Phase analysis
Oxidation flotation
Silver concentrate
