Using new flotation reagents to directly float niobium oxide and iron oxide

采用新型浮选药剂直接浮选氧化铌和氧化铁

• 批准号: 445344-2012
• 负责人: Liu, Qi
• 金额: $ 7.18万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=554163
• 关键词: Using; new; flotation; reagents; directly

Many of the iron ore mines, including ArcelorMittal Mines Canada (AMMC) and Cliffs Wabush Mines who support this proposal, use gravity separation and magnetic separation to upgrade the iron ores to smelter grades. However, these separation technologies are not effective in recovering fine iron oxide minerals, which are lost to the tailings. For instance, Cliffs Wabush loses 5.6% of total iron value to the hydrocyclone overflow. Even if half of this amount is recoverd, it would mean an additional revenue of $12 million. AMMC loses the majority of the -75 µm iron oxide value to the spiral tailings. Therefore, it is important that suitable froth flotation reagent schemes and processing technologies, such as proposed in this project, be developed to directly recover the fine iron oxide value from the tailings.

许多铁矿石矿山，包括支持这一提议的ArcelorMittal Mines Canada（AMMC）和Cliffs Wabush Mines，都使用重力分离和磁力分离将铁矿石升级到冶炼等级。然而，这些分离技术不能有效地回收流失到尾矿中的细氧化铁矿物。例如，Cliffs Wabush因水力旋流器溢流损失了总铁值的5.6%。即使收回一半，也会增加1，200万元的收入。AMMC将大部分-75 µm氧化铁值损失到螺旋尾矿中。因此，重要的是开发合适的泡沫浮选药剂方案和处理技术，例如本项目中提出的，以直接从尾矿中回收细粒氧化铁价值。