Hydrometallurgical decomposition of pyrite and marcasite in a microwave field

JH Huang, Neil Rowson

Research output: Contribution to journalArticle

30 Citations (Scopus)


The decomposition of pyrite and marcasite in a nitric acid medium heated by microwave energy has been investigated. It was found that microwave exposure could effectively improve the leaching kinetics of both minerals. Marcasite had a substantially higher decomposition rate than pyrite. The decomposition rate increased with an increase in leaching temperature and concentration of acid and with a decrease in particle size. Only 5-7% of the dissolved sulphur was transformed into elemental sulphur. A kinetic study showed that the decomposition of both minerals was controlled by chemical reactions on the surfaces of particles. (C) 2002 Elsevier Science B.V. All rights reserved.
Original languageEnglish
Pages (from-to)169-179
Number of pages11
Issue number3
Publication statusPublished - 1 Jun 2002


  • marcasite
  • nitric acid
  • pyrite
  • microwave radiation


Dive into the research topics of 'Hydrometallurgical decomposition of pyrite and marcasite in a microwave field'. Together they form a unique fingerprint.

Cite this