The extraction of copper with calixarenes was researched by comparing the results from calix[4]-, calix[6]- and calix[8]-arenes. The extraction ability increased as the order: calix [4]? calix[8]? calix[6]-arenes, wit...The extraction of copper with calixarenes was researched by comparing the results from calix[4]-, calix[6]- and calix[8]-arenes. The extraction ability increased as the order: calix [4]? calix[8]? calix[6]-arenes, with the binding ratio being 1:1. The extraction mechanism was also discussed, and its equation Cu(NH3)42+ +H2L(0)→KexCu(NH3)4L(0) +2H+ and the extraction equilbrium constants (Kex) for calix[6]- and calix[8]-arenes were obtained respectively.展开更多
基金Project (No. 29201004) supported by the National Natural Science Foundation of China
文摘The extraction of copper with calixarenes was researched by comparing the results from calix[4]-, calix[6]- and calix[8]-arenes. The extraction ability increased as the order: calix [4]? calix[8]? calix[6]-arenes, with the binding ratio being 1:1. The extraction mechanism was also discussed, and its equation Cu(NH3)42+ +H2L(0)→KexCu(NH3)4L(0) +2H+ and the extraction equilbrium constants (Kex) for calix[6]- and calix[8]-arenes were obtained respectively.
