Sorption of palladium(II) using organophosphorus derivatives based onthiacalix[4]arene impregnated resins from hydrochloric media

ABSTRACT

The sorption kinetics of Pd(II) from hydrochloric acid solutions by 1 and 2 impregnated Amberlite XAD-7 resins (3 and 4) have been systematically studied. Both impregnated resins selectively and efficiently adsorb Pd(II) from single metal solution and automotive catalyst residue solution. In comparison between 3 and 4, 4 showed more efficiency toward Pd(II) with respect to contact time, loading, and stripping capacities. 3 and 4 were characterized by XRD and SEM analyses before and after Pd(II) sorption. We also studied the reusability of 3 and 4 and both the resins offer excellent performance for three times.

KEYWORDS:

• Organophosphorus derivatives
• PGMs
• sorption

Funding

This work was supported by the “Takahashi Industrial Economic Research Foundation” and grant number 325, Japan. This work was also supported by the “Program to Disseminate Tenure Tracking System”, MEXT, Japan.

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Additional information

Funding

This work was supported by the “Takahashi Industrial Economic Research Foundation” and grant number 325, Japan. This work was also supported by the “Program to Disseminate Tenure Tracking System”, MEXT, Japan.