电解铝废渣提锂方法研究

随着新能源汽车行业进入黄金发展期，动力锂电池行业呈爆发式增长，碳酸锂的需求量也逐年递增，含锂氟化盐的使用造成大量含锂电解铝废渣产生，如果得到合理回收利用，将有利于缓解新能源产业带来的用锂压力。重点研究了以含锂电解铝废渣和浓硫酸为原料，通过酸浸取等一系列工艺，制备电池级碳酸锂，同时副产冰晶石，并从实验原理、实验方法、工艺关键点控制、产品质量、工艺特点等方面进行了深度剖析。本工艺具有良好的社会效益、经济效益和环保效益，易于推广应用。

Study on extracting lithium from electrolytic aluminum waste residue

As the new energy vehicle industry enters the golden development period，the power lithium battery industry shows explosive growth and the demand for lithium carbonate is also increasing year by year.The use of lithium containing fluoride salt leads to a large amount of lithium containing electrolytic aluminum waste residue to be produced.Reasonable recycling and utilizing of these waste residue will help alleviate the pressure of lithium from new energy industry.The battery grade lithium carbonate was prepared and cryolite by produced through a series of processes with lithium containing electrolytic aluminum waste residue and concentrated sulfuric acid as raw materials.The aspects of experimental principle，experimental methods，control of process key point，product quality，process characteristics and etc.Were deeply analyzed.The process has good social，economic and environmental benefits，and is easy to popularize and apply.