当前位置: X-MOL 学术Metallurgist › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Investigation of a Multi-Stage Integrated Technology for Processing Lithium-Cobalt Current Sources with the Production of Import-Substituting Cobalt and Lithium Compounds
Metallurgist ( IF 0.9 ) Pub Date : 2023-12-22 , DOI: 10.1007/s11015-023-01612-2
V. I. Nazarov , V. M. Retivov , D. A. Makarenkov , G. R. Aflyatunova , N. A. Kuznetsova , A. P. Popov

This report analyzes various methods of disposal and processing of exhaust from complex chemical current sources, subdivided into pyrometallurgical, hydrometallurgical, and combined. The complex technology for processing lithium-cobalt current sources (LCCS), developed at the National Research Center Kurchatov Institute, is described, including the stages of discharge, opening in an inert atmosphere, crushing, grinding (with mechanical activation), and leaching with extraction. The data from additional studies on the alkaline leaching process of the LCCS cathode are presented. In this case, the degree of aluminum extraction from the LCCS cathode reached 94.2%. Data on a comprehensive study of the distribution of metal components in fractions after grinding and milling in blade and ball mills were analyzed. The results showed that Co, Li compounds, and graphite are contained in powders of size 50–1000 pm, and fractions of size 1000–2500 pm contain Cu, Al compounds, and polymer particles. A fractional (staged) technology is proposed for separating valuable metal components from LCCS with water separation and leaching. The results of leaching mechanically activated powders with inorganic acids are presented. A comparative analysis of the results obtained with data from international authors on the efficiency of LCCS leaching was performed, and a mathematical description of the process kinetics was proposed. A modernized block diagram of combined mechanical processes with leaching and extraction processes was developed.



中文翻译:

锂钴电流源加工生产替代进口钴锂化合物多级集成技术研究

本报告分析了复杂化学电流源废气的各种处置和处理方法,分为火法冶金、湿法冶金和组合法。描述了国家研究中心库尔恰托夫研究所开发的锂钴电流源 (LCCS) 加工复杂技术,包括放电、在惰性气氛中打开、破碎、研磨(机械活化)和浸出阶段。萃取。介绍了有关 LCCS 阴极碱浸过程的其他研究的数据。此时,LCCS阴极的铝提取率达到94.2%。对刀片磨机和球磨机研磨和铣削后金属组分分布的综合研究数据进行了分析。结果表明,尺寸为 50-1000 pm 的粉末中含有 Co、Li 化合物和石墨,尺寸为 1000-2500 pm 的部分含有 Cu、Al 化合物和聚合物颗粒。提出了一种分级(阶段)技术,通过水分离和浸出从 LCCS 中分离有价值的金属成分。介绍了用无机酸浸出机械活化粉末的结果。对国际作者关于 LCCS 浸出效率的数据进行了比较分析,并提出了过程动力学的数学描述。开发了机械过程与浸出和提取过程相结合的现代化框图。

更新日期:2023-12-22
down
wechat
bug