攀西钒钛磁铁矿尾矿中钪的提取工艺研究  

Study on Scandium Extraction Technology for Panxi Vanadium Titanium Magnetite Tailings

作　　者：黄雯孝 卢可可[1] Huang Wenxiao;Lu Keke(Guangdong Institute of Mineral Applications,Key Laboratory of Radioactive and Rare Scattered Mineral Resources of Ministry of Land and Resources,Guangdong,Shaoguan,China)

机构地区：[1]广东省矿产应用研究所,国土资源部放射性与稀有稀散矿产重点实验室,广东韶关512026

出　　处：《矿产综合利用》2020年第2期135-139,共5页Multipurpose Utilization of Mineral Resources

摘　　要：通过研究分析攀西钒钛磁铁矿尾矿中钪在各矿物中的分布规律及赋存状态,制定出“选矿预富集-碱性焙烧-酸浸-萃取与反萃取富集分离钪-制备氧化钪产品”的工艺路线。得出焙烧试验添加剂用量、焙烧温度、焙烧时间对钪的浸出率影响关系,确定了萃取与反萃取、洗涤、净化除杂及草酸沉淀钪时的工艺条件,最终得到99.22%的Sc2O3产品。本试验为实现攀西钒钛磁铁矿尾矿中钪的综合回收提供了技术依据。By studying and analyzing the distribution law and occurrence state of scandium in various minerals in panxi vanadium titanium magnetite tailings,the technological route of"preconcentration of ore dressingalkaline roasting-acid leaching-extraction and reverse extraction-concentration and separation of scandiumpreparation of scandium oxide products"was worked out.The relationship between the amount of additives,roasting temperature and roasting time on scandium leaching rate was obtained.The technological conditions of extraction and reverse extraction,washing,purifying and removing impurity and scandium oxalate precipitation were determined.Finally,99.22%of Sc2O3 products were obtained.This test provides a technical basis for the comprehensive recovery of scandium from panxi vanadium titanium magnetite tailings.

关 键 词：钒钛磁铁矿尾矿 钪 普通辉石 焙烧 萃取 

分 类 号：TD952[矿业工程—选矿]