杯芳烃衍生物的合成及其对溶液中汞离子的萃取

Study on Synthesis and Extraction of Mercury Ion in Aqueous Phase by Calixarene Derivatives

在废水处理中,含有微量汞离子的废水往往比含大量汞离子的废水更难处理。实验中自行合成了对叔丁基杯犤4犦芳烃的氯磺化衍生物及氨化衍生物,并将其作为萃取剂对水溶液中的二价汞离子进行萃取研究,测定了酸度和汞离子浓度对萃取效果的影响,探讨了水、浓盐酸、硫化钠、氨水和氢氧化钠这5种试剂反萃取回收二价汞离子的可行性。

In the wastewater treatment, it was more difficult to treat water with trace amount Hg2+ than with large amount. The sulfonic acid ester derivative and the amide derivative of p- tert- butylcalixarene were synthesized in the experiment. The two derivatives as extractants extracting Hg2+ in aqueous phase were studied. The effects of pH and concentrations of Hg2+ were determined. The feasibility of Hg2+ recovery by anti- extractants, such as H2O, HCl, Na2S, NH3· H2O and NaOH, was also discussed.