Sorption of Gold from Electronic Waste Solutions by a Commercial Sorbent

MORCALI M. H., Zeytuncu B., Akman S., Yücel O.

CHEMICAL ENGINEERING COMMUNICATIONS, cilt.201, sa.8, ss.1041-1053, 2014 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 201 Sayı: 8
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1080/00986445.2013.798731
  • Dergi Adı: CHEMICAL ENGINEERING COMMUNICATIONS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1041-1053
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

In this work, sorption of gold from electronic waste solutions using a commercial sorbent, Lewatit TP 214, was investigated. The effects of the different parameters on gold sorption (%) were studied in detail. Sorbent dosage, contact time, temperature, and solution pH were selected as sorption parameters. Additionally, the gold sorption by Lewatit TP 214 is a diffusion-controlled process with activation energies of 12.28kJ/mol. The thermodynamic values such as G degrees, H degrees, and S degrees were calculated by experimentally obtained results. The reaction was spontaneous and endothermic. The gold sorption capacity for the sorbent was 100.1mg gold per gram. XRD patterns revealed that the gold was in its metallic form. The results indicated that Lewatit TP 214 can be effectively used for the sorption of gold from waste solution.