金刚烷胺制药胺化废水与溴化废水的中和-络合萃取处理

考察了两种废水中和反应过程对污染物的去除效果,然后采用P204/正辛醇复配萃取剂对废水进行络合萃取处理.结果表明,采用溴化废水中和滴定胺化废水可以大幅消减废水中污染物,避免后续萃取过程中的乳化现象;在pH值为8.0,油/水相比为1:1的条件下,P204:正辛醇=3:2的复配萃取剂对废水中TOC和金刚烷胺的单级萃取效率分别为49.6%和99.5%;多级萃取对TOC去除率没有明显提高;以2.0mol/L的HCl溶液为反萃取剂,在水/油相比为1:1条件下,可以将47.5%的金刚烷胺从负载有机相中反萃分离,回收得到的金刚烷胺盐酸溶液可以回用,再生后的萃取剂可以多次重复使用.

Neutralization-complex extraction treatment of amantadine pharmaceutical amination wastewater and bromination wastewater

Influences of neutralization process on pollutants removal of the two wastewaters were investigated firstly. Then the complex extraction of the neutralized wastewater was carried out by using P204 as the extractant and octanol as the diluent. The results showed that the neutralization process could highly remove pollutants in the wastewater and avoid emulsification in the following complex extraction; Under the conditions of pH value 8.0, oil-water ratio 1:1and P204:octanol=3:2, the single stage extraction efficiency of TOC and amantadine was 49.6% and 99.5%, respectively; Multi-stage extraction had no significant improvement on TOC removal; As stripping agent HCl solution of 2.0mol/L was used with a water: oil phase ratio of 1:1, about 47.5% of amantadine was stripped from the loaded solvent; The recycled amantadine hydrochloride solution can be reused in the amantadine production process. The P204-octanol complexing extractant can be reused multiple times in the extraction and back-extraction processes.