Madaeni - Chemical Engineering Department, Razi University, Kermanshah, Iran
Karami Zand - Chemical Engineering Department, Razi University, Kermanshah, Iran

In the present work, a new supported liquid membrane (SLM) system for the selective transport of Bi ions was prepared. The SLM was a thin porous polyvinylidenefluoride (PVDF) membrane impregnated with diisooctyldithiophosphinic acid (Cyanex 301) as mobile carrier in 4-chloroacetophenon as organic solvent. Cyanex 301 acts as a highly selective carrier for the uphill transport of Bi ions through the SLM. The transport of Bi ions reached to 70%. In the presence of P2O7 -2 ion as suitable masking agent in the feed solution, the interfering effects of other cations were completely eliminated

supported liquid membranes, bismuth, ion transport