某矽卡岩型铜硫矿资源综合回收工艺
Comprehensive Recovery Process of Skarn Type Copper-sulfur Ore Resources
张晶 1唐鑫 1吕向文 1简胜 1乔吉波 1张琳1
作者信息
- 1. 昆明冶金研究院有限公司,云南省选冶新技术重点实验室,有色金属强化冶金新技术全国重点实验室,云南 昆明 650031
- 折叠
摘要
这是一篇矿物加工工程领域的论文.针对某矽卡岩性铜矿石嵌布粒度较细及有价元素种类多,分别为铜、硫、铁和伴生元素银的特点.比较了铜优先浮选、铜硫混合浮选-铜硫分离两种工艺对资源综合回收的影响,其中铜硫混浮-铜硫分离工艺可以实现铜、硫、银的较好回收,同时磁铁矿有一定回收价值.实验可以得到铜品位24.39％、铜回收率91.68％的铜精矿,硫品位33.10％、硫回收率61.19％的硫精矿.银在铜精矿中得到了富集,银品位185 g/t、银回收率83.21％.浮选尾矿经再磨后磁选可以增加铁精矿回收率,经过两段弱磁选可以得到铁品位56.48％,铁回收率33.84％的铁精矿,该工艺可为同类型矿石选矿提供意见参考.
Abstract
This is an article in the field of mineral processing engineering.For a skarn copper ore,the disseminated particle size is fine,the valuable elements in the ore are Cu,S,Fe and the associated element Ag.Compared with the effects of copper preferential flotation and copper-sulfur mixed flotation-copper-sulfur separation on the comprehensive recovery,the copper-sulfur mixed flotation-copper-sulfur separation process can achieve better recovery of copper,sulfur and silver,and magnetite has a certain recovery value.Copper concentrate with copper grade of 24.39％and copper recovery of 91.68％and sulfur concentrate with sulfur grade of 33.10％and sulfur recovery of 61.19％were obtained by copper sulfur mixed flotation.Ag was enriched in the copper concentrate,with a grade of 185 g/t and Ag recovery of 83.21％.The recovery of iron concentrate can be increased after the regrinding magnetic separation of flotation tailings.With two-stage weak magnetic separation,iron concentrate with iron grade of 56.48％and iron recovery of 33.84％can be obtained.The results can provide a reference for the similar copper sulfide.
关键词
矿物加工工程/铜硫矿/铜硫混选/铜硫分离/磁选Key words
Mineral processing engineering/Copper sulfur ore/Mixing flotation of Cu-S/Separation of Cu-S/Magnetic separation引用本文复制引用
基金项目
云南省科技人才与平台计划(202305AD160054)
出版年
2024
国家科技期刊平台
NSTL
万方数据