铝电解大修渣高效处置技术研究  

Research on highly-efficient disposal technology of aluminum electrolytic SPL

作　　者：梁可[1] 张燕[1] 杨桃艳 陈浩林 鲁艳梅 Liang Ke;Zhang Yan;Yang Taoyan;Chen Haolin;Lu Yanmei(Kunming Non-ferrous Metallurgical Design and Research Institute Co.,Ltd.,Kunming 650231,China)

机构地区：[1]昆明有色冶金设计研究院股份公司,云南昆明650231

出　　处：《轻金属》2024年第9期36-40,共5页Light Metals

基　　金：云南省重点研发计划项目(202203AA080007)。

摘　　要：随着全国电解铝产业的迅速发展,铝电解大修渣的高效利用是产业持续健康发展的必要保障。本文提出了一种大修渣高效加压碱性工艺,通过实验确定最佳工艺条件为:NaOH浓度为100 g/L、反应温度100℃、液固比5∶1、反应时间1 h。在最佳实验条件下,大修渣中F、Na、Al的浸出率分别为79.57%、87.01%、19.61%,该工艺为电解铝行业大修渣绿色、高效处置提供了新的思路。With the rapid development of electrolytic aluminum industry in China,the highly-efficient utilization of aluminum electrolytic SPL is the necessary guarantee for the sustainable and healthy development of the industry.In this paper,a highly-efficient pressurized alkaline process for SPL was proposed.The optimum conditions were determined by experiments as follows:NaOH concentration of 100 g/L,reaction temperature of 100℃,liquid-solid ratio of 5∶1,reaction time of 1 h.Under the best experimental conditions,the leaching rates of F,Na and Al in SPL are 79.57%,87.01%and 19.61%,respectively.This process provides a new idea for green and highly-efficient disposal of SPL in electrolytic aluminum industry.

关 键 词：大修渣 资源化利用 电解铝 绿色发展 

分 类 号：TF821[冶金工程—有色金属冶金]