络合萃取法处理模拟金刚烷胺制药废水
Acta Scientiae Circumstantiae(2014)
Abstract
采用络合萃取法处理模拟金刚烷胺制药废水,比较了苯、CCl4和P204等11种萃取剂对水溶液中金刚烷胺的萃取效果,考察了溶液初始pH值、稀释剂的类型、萃取剂与稀释剂的配比和油/水比等因素对萃取效率的影响,并对萃取液进行了反萃取分离研究.结果表明,在水溶液中金刚烷胺浓度为1000 mg·L-1,溶液初始pH值为8.0~10.0,油/水比为1∶1的条件下,采用P204与正辛醇体积比3∶2的复配萃取剂进行萃取分离,金刚烷胺萃取率可以达到99.0%以上,当金刚烷胺浓度增加至10.0 g·L-1时,萃取率仍可以保持在97.0%以上;以2.0 mol·L-1的HCl溶液为反萃取剂,按照油/水比为1∶1可将51.1%的金刚烷胺从萃取剂中反萃分离.
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