摘要
浮选技术具有回收效率高、适应性强等优点,在煤炭洗选、粉煤灰脱碳、废纸脱墨、污染土壤去毒、污水净化和垃圾焚烧飞灰脱碳去毒等方面得到广泛应用.这些分离过程通常需要添加表面活性剂改善其浮选效果.笔者对表面活性剂应用于浮选中的作用机理及影响因素进行了综述,分别介绍了表面活性剂的类型、浓度、复配以及无机盐的存在对浮选效果的影响,展望了表面活性剂在浮选中应用的潜力及今后的研究方向.
Because of the advantages of high recovery efficiency and adaptability,flotation technology is widely used in coal washing,contaminated soil detoxification,sewage purification,waste paper deinking,coal fly ash decarbonization as well as waste incineration fly ash decarbonization and detoxification.These separation processes usually require the addition of surfactants to improve their flotation effects.In this paper,the action mechanism and influencing factors of surfactants applied in flotation are reviewed.The influences of surfactant type,concentration,compounding and the presence of inorganic salts on flotation effect are introduced respectively,and the potential of surfactants applied in flotation as well as future research directions are expected.
作者
李思明
刘汉桥
魏国侠
LI Siming;LIU Hanqiao;WEI Guoxia(School of Energy and Safety Engineering,TCU,Tianjin 300384,China;b.School of Science,TCU,Tianjin 300384,China)
出处
《天津城建大学学报》
CAS
2022年第3期192-197,共6页
Journal of Tianjin Chengjian University
基金
国家重点研发计划项目(2017YFC0703100)
天津市自然科学基金(18JCYBJC24100)。
关键词
浮选
表面活性剂
疏水性
临界胶束浓度
无机盐
flotation
surfactant
hydrophobicity
critical micelle concentration
inorganic salt
