摘要
锂在原子能工业中具有十分独特的地位,被誉为"高能金属",它推动着能源工业尤其是电池技术的发展。用等离子质谱仪(ICP-MS)对黔中地区铝质岩进行微量元素测试,测得其中锂含量很高(500 g/t左右),达到提取要求。采用盐酸作为浸取液对铝质岩中锂元素进行了分离富集实验,得出最佳工艺条件:焙烧温度为800℃,质量分数为10%的盐酸与矿粉的体积质量比为4 mL/g,反应温度为60℃,反应时间为2 h。在最佳条件下锂浸出率达到95.35%。
Lithium is honored as ＇high energy metal＇ as it has a very particular position in atomic energy industry,it pro- motes the development of energy industry, especially battery technology.ICP-MS was used to test the trace elements of alumi- nous rocks in Central Guizhou and the results indicated the rocks had high content of lithium, about 500 g/t, which met the qualification to extract.Separation and enrichment experiments for lithium in the aluminous rocks were carried out by the use of hydrochloric acid as the leaching liquid, and the optimum technological conditions were obtained ： calcination temperature was 800 ℃, volume-mass ratio of 10% （mass fraction） hydrochloric acid to mineral powder was 4 mL/g, reaction temperature was 60 ℃, and reaction time was 2 h.Under the optimum conditions ,the Li leaching rate reached 95.35%.
出处
《无机盐工业》
CAS
北大核心
2013年第3期19-21,共3页
Inorganic Chemicals Industry
基金
贵州省科技厅国际合作项目(黔科合外G字[2010]007号)
贵州省科技厅工业攻关项目(编号:黔科合GY字[2012]3055)
贵州省教育厅培育项目(黔教高发[2009]331号)
关键词
铝质岩
锂
化学分离富集
浸出率
aluminous rocks
lithium
chemical separation and enrichment
leaching rate
