稀土元素在铝土矿中的赋存状态及利用现状

Occurrence and Utilization of Rare Earth Element in Bauxite

铝土矿中除主要元素铝、硅之外,还含有丰富的稀土元素。研究表明,在A l2O3生产中,稀土主要富集于赤泥中,而在矿石中稀土元素呈分散状态被吸附于一水硬铝石、高岭石等粘土矿物的周际或之间,稀土元素的利用不仅可增加企业的经济效益,还可提高企业的社会效益与环境效益。对贵州某地铝土矿中稀土的赋存状态及利用状况进行了综述。

There are abundant REE elements in bauxite besides aluminium. Results of correlation analysis showed that REE mostly enrich in red mud in production of Al2O3,not grow on every hedge singularity lanthanon were adsorbed in diaspore kaolinlite and so on. Using of lanthanide not only increase corporation economic benefit, but also increase social benefit and environmental benefit. This paper has reviewed lanthanide existent forms and using status in bauxite in Guizhou.