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The extraction of copper with calixarenes was researched by comparing the results from calix[4]-,calix[6]-and calix[8]-arenes.Hie 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 itsequation Cu(NH3)42+ +H2L(0)Cu(NH3)4L(0)+ 2H+ and the extraction equilibrium constants(Ker)for calix[6]-and calix[8]-arenes were obtained respectively.
The extraction of copper with calixarenes was researched by comparing the results from calix [4] -, calix [6] -and calix [8] -arenes. Hie extraction ability increased as the order: calix [4] -> calix [6] -arenes, with the binding ratio being 1: 1. The extraction mechanism was also discussed, and it is available Cu (NH3) 42+ + H2L (0) Cu (NH3) 4L (0) + 2H + and the Extraction equilibrium constants (Ker) for calix [6] -and calix [8] -arenes were obtained respectively.