四川大陆槽稀土尾矿回收萤石实验
Recovery of Fluorite from a Low-grade Rare Earth Tailing in Sichuan
周政 1欧阳安妮 1熊文良 1夏小洪 2杨伟 2谢志远 2朱英江3
作者信息
- 1. 中国地质科学院矿产综合利用研究所,四川省稀土技术创新中心,中国地质调查局稀土资源应用技术创新中心,四川 成都 610041
- 2. 四川省地质矿产(集团)有限公司,四川 成都 610062
- 3. 四川和地矿业发展有限公司,四川 德昌 615500
- 折叠
摘要
这是一篇矿物加工工程领域的文章.本文以德昌大陆槽稀土选矿尾矿为研究对象,开展了萤石回收的选矿实验研究,确定了该尾矿中萤石回收的"浮选脱硫-混合浮选-萤石、锶钡浮选分离"选矿工艺流程和药剂制度,在浮选实验中使用了新型捕收剂MQY与高效抑制剂DC-2,在对萤石高效捕收的同时实现了萤石与脉石矿物的精准分离,最终全流程实验获得了 CaF2品位94.39％,回收率51.41％的萤石精矿,实验指标较为理想.本文验证了从大陆槽稀土尾矿中回收萤石具有较好的可行性,最终确定的选矿工艺流程较为合理,实验指标较为良好,可作为大陆槽稀土尾矿中萤石资源利用回收的技术依据.
Abstract
This is an article in the field of mining processing engineering.This article takes Dechang Daluchao rare earth mineral processing tailings as the research object,conducts a beneficiation test study on fluorspar recovery,and determines the beneficiation process flow and reagent of"flotation desulphurization-mixed flotation-flotation separation of fluorite,strontium and barium"for fluorite recovery.In the flotation test,the new MQY collector and DC-2 high-efficiency inhibitor were used to efficiently capture fluorite while achieving precise separation of fluorite and gangue minerals.In the final full-process test,a fluorspar concentrate with a CaF2 grade of 94.39％and a recovery rate of 51.41％was obtained.The test indicators were relatively ideal.This article tested and verified the feasibility of recovering fluorspar from the Dalunchao rare earth tailings.The final beneficiation process is reasonable and has good test indicators.It can be used as a technical basis for the utilization and recovery of fluorspar resources in the Dalunchao rare earth tailings.
关键词
矿物加工工程/稀土尾矿/萤石/混合浮选/抑制剂Key words
Mining processing engineering/Rare earth tailings/Fluorite/Mixed flotation/Inhibitor引用本文复制引用
基金项目
四川省科技计划项目(2023ZDZX0005)
四川省科技计划项目(2022ZHCG0124)
四川省科技计划项目(2022JDR0355)
四川省科技计划项目(2022ZYD0126)
出版年
2024
国家科技期刊平台
NSTL
万方数据