矿产保护与利用Issue(2)：80-85,6.DOI:10.13779/j.cnki.issn1001-0076.2018.02.015
玻利维亚劳拉力矿区高品位难选氧化铜矿活化浮选研究
Activation Flotation for a High Grade Refractory Copper Oxide Ore in Laurani Mining Area,Bolivia
摘要
Abstract
A certain copper ore in Laurani mining area, Bolivia, with the high Cu content of 3.98%, the main copper minerals of malachite,and the oxidation rate and combination ratio of Cu reaching as high as 98.49% and 20.10% respectively,belongs to one type of high grade refractory copper oxide ore. According to properties of this ore, an activation flotation scheme was proposed as"synergistic activation by sodium sulfide and ammonium sulfate,combined dispersion by sodium silicate and ammonium sulfate, strengthening collection by mixed use of isoamyl xanthate and hydroxamic acid",and meanwhile the effects of main factors of the scheme was investigated. The results show that,under the optimum conditions:sodium silicate dosage of 300 g/t,sodium sulfide dosage of 800 g/t,ammonium sulfate dosage of 800 g/t,isoamyl xanthate dosage of 120 g/t,and hydroxamic acid dosage of 60 g/t,the concentrate with the Cu grade and recovery of 27.07% and 86.38%, could be obtained by activation flotation process of"one roughing, one cleaning, two stages scavenging".关键词
氧化铜矿/浮选/活化/分散/捕收剂Key words
copper oxide ore/flotation/activation/dispersion/collector分类
矿业与冶金引用本文复制引用
胡艺博,叶国华,蒋京航,路璐,童雄..玻利维亚劳拉力矿区高品位难选氧化铜矿活化浮选研究[J].矿产保护与利用,2018,(2):80-85,6.基金项目
国家自然科学基金(51764024,51604130) （51764024,51604130）
