Gold leaching by use of an N,N '-disubstituted thiourea

Aydin A. A., KAKI E., Aydin A.

SEPARATION SCIENCE AND TECHNOLOGY, cilt.36, sa.14, ss.3239-3251, 2001 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 36 Sayı: 14
  • Basım Tarihi: 2001
  • Doi Numarası: 10.1081/ss-100107770
  • Dergi Adı: SEPARATION SCIENCE AND TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.3239-3251
  • Anahtar Kelimeler: gold leaching, thioureation, PRECIOUS METALS
  • İstanbul Teknik Üniversitesi Adresli: Hayır

Özet

A novel reagent for gold leaching was synthesized and the leaching conditions investigated. The reagent, 1-phenyl-2-thio-3-(2-hydroxyethyl) urea, dissolved gold at relatively high yields (>95%) in the presence of an oxidant (Fe(III)) in a sulfuric acid solution at pH 0.9-1.2 at room temperature. The effects of certain leaching parameters, such as working pH, reagent-Au mol ratio, oxidant-Au mol ratio, contact time, and temperature are discussed.