Palladium recovery from spent Pd plating solutions using Lewatit TP 214 resin

Burcu Nilgün Çetiner, Ece Uluser Yegül, Bihter Zeytuncu, Serdar Aktaş*

*Bu çalışma için yazışmadan sorumlu yazar

Araştırma sonucu: ???type-name???Makalebilirkişi

1 Atıf (Scopus)

Özet

This study aims to explore the recovery of palladium (Pd(II)) ions using Lewatit TP 214 resins. Waste Pd(II) ions with ammonia complex procured from a precious metal plating were selected as the source solution. In the experimental studies, two stock solutions of 60 ppm Pd(II) with a pH value of 4.0 and 7.5 were prepared as initial solutions. The experiments were performed by altering four parameters: solution pH, time 15–180 min, temperature 25°C–60°C, and amount of resin 100–400 mg. It was proved that the recovery percentage increased with higher temperature and resin at lower pH values. The Pd(II) recovery percentage increased with a temperature rise, reaching 100% after 40 min at pH 4.0 and 60°C. On the other hand, a bit lower efficiency (95%) was attained after 180 min at pH 7.5 and 60°C. Using Lewatit TP 214, the computed activation energies for Pd(II) recovery are 17.73 and 15.62 kJ/mol at pH 4.0 and 7.5, respectively. Considering these activation energy values, a mixed mechanism dominated the recovery of Pd(II).

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)211-222
Sayfa sayısı12
DergiDesalination and Water Treatment
Hacim253
DOI'lar
Yayın durumuYayınlandı - Mar 2022

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Publisher Copyright:
© 2022 Desalination Publications. All rights reserved.

Finansman

The Scientific Research Unit at Marmara University financially supported the project under FEN-A-101018-0528.

FinansörlerFinansör numarası
Marmara ÜniversitesiFEN-A-101018-0528

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