世界有色金属Issue(15)：7-9,3.
湿式球磨耦合多步浸出处理铝电解槽废阴极炭研究
Study on Treatment of Spent Cathode Carbon from Aluminum Reduction Cell by Wet Ball Milling Coupled with Multi-step Leaching
摘要
Abstract
A wet ball milling pretreatment was coupled with multi-step leaching for spent cathode carbon.The effect of ball milling conditions on the deashing of spent cathode carbon was investigated,followed by phase analysis of residual impurities and by the desalination of milled solution waste.The results showed that the ash content of spent cathode carbon decreased from 44.78%to 6.15%,when treated with the optimized conditions including zirconia ball size(1.0～1.2 mm),feeding ratio(2 g spent cathode carbon/24 g water),milling speed(400 rpm),and milling time(6 h).Furthermore,the particle morphology was disaggregated from bulk aggregates to carbon nanoplatelets with reduced size.XRD analysis showed that a small amount of the NaAlSiO4 impurity remained in the treated carbon powder.The solution waste from ball milling treatment of spent cathode carbon was concentrated to separate out sodium fluoride with relatively high purity.关键词
废阴极炭/脱灰/湿式球磨/多步浸出/炭纳米片Key words
Spent cathode carbon/Deashing/Wet ball milling/Multi-step leaching/Carbon nanoplatelet分类
矿业与冶金引用本文复制引用
孙想旭,张明杰,李朝旭,李怡招,杨超..湿式球磨耦合多步浸出处理铝电解槽废阴极炭研究[J].世界有色金属,2026,(15):7-9,3.基金项目
本工作得到了新疆维吾尔自治区重点研发计划(项目编号:2021B03005)的资金支持. （项目编号:2021B03005）
