Dissolution of Platinum from Scrap Automotive Catalytic Converters Using a Combination of HCl+H(2)O(2)


Uysal C., Kizilaslan E., Aktas S., Şeşen M. K.

TMS 2010 Annual Meeting Supplemental Proceedings on Materials Processing and Properties, Washington, Amerika Birleşik Devletleri, 14 - 18 Şubat 2010, ss.479-495 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Washington
  • Basıldığı Ülke: Amerika Birleşik Devletleri
  • Sayfa Sayıları: ss.479-495
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

Dissolution of platinum which is incorporated in automotive catalytic converters is performed through chemical methods. There is a need to develop a cost-effective and environmentally friendly process for platinum dissolution. This poster summarizes research on the possibility of 10 HCl: 1 H2O2 solution to replace aqua regia for the mentioned task. Dissolution of platinum in this solvent was studied as functions of agitation rate, time, liquid/solid mass ratio and the reaction temperature. A comparison of the solvent's efficiency with that of aqua regia was provided at each step. It was demonstrated that 95% dissolution of platinum in catalytic converters could be achieved with 10 HCl: 1 H2O2 solution under moderate experimental conditions, which are easy-to-adopt to the industrial plants.