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, United States Of America, 14 - 18 February 2010, pp.479-495 identifier

  • Publication Type: Conference Paper / Full Text
  • City: Washington
  • Country: United States Of America
  • Page Numbers: pp.479-495

Abstract

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.