摘要
以二(2-乙基己基)磷酸(D2EHPA)为萃取剂,研究稀释剂种类、萃取剂浓度、溶液的初始pH值、溶液中甲(乙)醇等因素对邻氨基酚(OAP)稀溶液分配比(D)的影响.结果表明:溶液的初始pH值在7左右时,D有最大值;D值随二(2-乙基己基)磷酸浓度的增大而提高,且在极性环境要优于惰性环境;甲(乙)醇是影响萃取结果的主要因素.
Di（2-ethylhexyl） phosphoric acid was used as the extraction agent for the extraction of o-aminophenol in 2-octanol and kerosene. Equilibrium data for active and inactive diluents were obtained at various di（2-ethylhexyl） phosphoric acid concentrations, the initial pH and carbinol （ethanol） of solution. The result indicate that the initial pH （pHin） values have a large effect on D values, at the same the concentration extractabilities of di （2-ethylhexyl）phosphoric increase as the polarity of diluted rise, The effect of extraction decrease largerly because of carbinol （ethanol）. The experiment proved that it can process effective pretreatment on industry waste water.
出处
《环境化学》
CAS
CSCD
北大核心
2007年第3期362-365,共4页
Environmental Chemistry
基金
河南省教育厅自然科学基金课题(编号2003610323).
关键词
络合萃取
邻氨基苯酚
二(2-乙基己基)磷酸
complexation extraction, o-aminophenol, di （2-ethylhexyl） phosphoric acid
