摘要
采用重差分相液膜分离技术提取Cr6+,以三正辛胺为载体,煤油为膜溶剂,NaOH溶液为反萃剂,考察了料液酸度、表面活性剂浓度、反萃液碱度等条件对六价铬的提取率与反萃率的影响,提取过程不需要制乳和破乳,工艺过程比较简单.
Extraction of Cr^(6+) was carried out using gravity separation phase liquid membrane technology with n-trioctylamine as carrier,kerosene as the membrane solvent and NaOH as stripping agent.Factors affecting the extraction and stripping efficiency of Cr^(6+) were studied.Factors,such as pH of Cr^(6+) solution,the concentration of surfactant,the NaOH concentration of stripping solution and so on are considered.Emulsification and demulsification could be eliminated in this process,thus the technological process is simplier.
出处
《沈阳师范大学学报（自然科学版）》
CAS
2004年第4期288-291,共4页
Journal of Shenyang Normal University:Natural Science Edition
关键词
重差分相
提取
六价铬
三正辛胺
gravity separation phase
extraction Cr^(6+)
n-trioctylamine
