某低品位白钨矿酸浸脱磷试验研究
Experimental Study on Acid Leaching and Phosphorus Removing of a Low-Grade Scheelite
陈晓媛 1王欣欣 1王露露 1王俊杰 1罗凯 1刘德智 1陈利革1
作者信息
- 1. 洛阳栾川钼业集团钨业有限公司,河南 栾川 471500
- 折叠
摘要
以河南栾川某碱分解工艺背景下的高磷低品位白钨矿为研究对象,采用单因素试验探讨了盐酸脱出此白钨矿中磷的可行性,考察了浸出过程中各因素对白钨矿分解以及杂质磷浸出的影响.试验结果表明:在盐酸浓度为 2 mol/L、浸出时间1h、反应温度50℃、酸浸反应液固比4∶1、磨矿时间1h的条件下磷的浸出率最高可达到99%以上,而金属钨在浸出渣中进一步被富集,成功地实现了低品位白钨矿向白钨中矿的转型,说明酸分解法适用此类高磷复杂白钨矿的处理,为企业将来实现工艺转型、优化工艺参数提供了理论基础和试验依据.
Abstract
The high phosphorus and low-grade scheelite from a certain alkaline decomposition process in Luan-chuan,Henan province was taken as the research object.The feasibility of removing phosphorus from this scheelite with hydrochloric acid was explored through single factor experiments,and the effects of various factors during the leaching process on the decomposition of scheelite and the leaching of impurity phosp horus were investigated.The experimental results show that under the conditions of hydrochloric acid concentration of 2 mol/L,leaching time of 1 hour,reaction temperature of 50℃,acid leaching reaction liquid-solid ratio of 4∶1,and grinding time of 1 hour,the highest phosphorus leaching rate can reach over 99%.Metal tungsten is further enriched in the leaching slag,successfully achieving the transformation from low-grade scheelite to intermediate scheelite.This indicates that the acid decomposition method is suitable for the treatment of such high phosphorus complex scheelite,providing a the-oretical basis and experimental basis for enterprises to achieve process transformation and optimize process parame-ters in the future.
关键词
白钨矿/盐酸/磷/酸浸Key words
scheelite/hydrochloric acid/phosphorus/acid leaching引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据