矿产保护与利用2024，Vol.44Issue(1)：82-88,7.DOI:10.13779/j.cnki.issn1001-0076.2024.01.011
某高磷铁矿悬浮焙烧—磁选—浸出提铁降磷实验研究
Dephosphorization of a High-phosphorus Iron Ore by Magnetic Roasting-leaching Process
王绍兴 1宁国栋 1刘应志 1李艳军2
作者信息
- 1. 上海逢石科技有限公司,上海 201600
- 2. 东北大学 资源与土木工程学院,辽宁 沈阳 110819||难采选铁矿资源高效开发利用技术国家地方联合工程研究中心,辽宁 沈阳 110819
- 折叠
摘要
Abstract
In response to the characteristics of high-phosphorus iron ore,which the complex symbiotic relationship between iron minerals and phosphate minerals in high-phosphorus iron ore and the difficulty in efficient utilization through conventional beneficiation methods.The roasting-leaching technology for iron extraction and phosphorus reduction was proposed with a view to achieving efficient utilization of high-phosphorus iron ore.This paper investigated a high-phosphorus certain iron ore with a TFe grade 60.81%,FeO content14.92%,and P content 0.71%extracted from Algeria.The experimental study on iron extraction and dephosphorization was carried out by oxidizing roasting-magnetization roasting-magnetic separation-leaching process.The magnetic roasting process conditions of oxidation temperature 1 050 ℃,reduction temperature 520 ℃,reduction time 25 min and H2 concentration 50%were determined.The iron concentrate indexes of total Fe grade 65.50%,total Fe recovery 96.31%and P content 0.16%were obtained,which 77.46%of P removed.The experimental results offer guidance for iron extraction and dephosphorization of iron ore in Algeria.关键词
高磷铁矿/氧化焙烧/磁化焙烧/浸出Key words
high-phosphorus iron ore/oxidizing roasting/magnetic roasting/leaching分类
矿业与冶金引用本文复制引用
王绍兴,宁国栋,刘应志,李艳军..某高磷铁矿悬浮焙烧—磁选—浸出提铁降磷实验研究[J].矿产保护与利用,2024,44(1):82-88,7.
