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p-Diethylphosphonomethylthiacalix[6]arene (1) was impregnated on Amberlite XAD-7 resin (1-XAD), and the sorption kinetics of 1-XAD towards Pd(II) ions in HCl media were investigated. The maximum Pd(II) sorption capacity (SC) of 1-XAD was 18.7mgg−1 after a contact time of 24h in a 200mgL−1 Pd(II) solution. Batch sorption studies were then conducted to optimize a range of equilibration conditions, such...
The extraction of Pd(II) ions from automotive catalyst residue solutions in Cl − media was studied using 5,11,17,23,29,35-tert-butyl-37,38,39,40,41,42-(dimethylthiocarbamoyl)oxy thiacalix[6]arene (1) and 5,11,17,23-tert-butyl-25,26,27,28-(dimethylthiocarbamoyl)oxy thiacalix[4]arene (2). Compounds 1 and 2 were found to have higher Pd(II)-ion extraction abilities than p-tert-butylthiacalix[6]arene...
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