真空热还原制锂工艺的技术经济分析

Technical and Economical Analysis on the Lithium Production by Vacuum Thermal Reduction Process

系统介绍了以碳酸锂为原料 ,加入石灰或铝氧土后 ,经焙烧、硅铁或铝粉真空热还原制取金属锂的工艺。本法与氯化锂熔体电解制取锂的工艺相比 ,具有产品成本低、纯度高、环境状况好的优点。

The vacuum thermal reduction process to make lithium is introduced in detail, this process uses the Li 2CO 3 as raw material, and by vacuum thermal reduction with Si-Fe alloy or aluminium powder after roasted with lime or alumina additives to produce metallic lithium. This process has the following advantages compared with LiCl melt electrolysis process: low cost, high lithium purity, without environment pollution.