Processing oxide-sulfide copper ores using ammonium chloride

A. N. D'yachenko, R. I. Kraidenko

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The method of processing copper raw material into copper oxide is suggested and investigated. This method is based on the decomposition of copper oxide and sulfide by ammonium chloride with the subsequent leaching of chloride compounds of copper and the precipitation of copper hydroxide from the solution. The thermodynamics is calculated, and a thermogravimetric analysis of the processes is carried out. The kinetics of chlorination of copper and iron sulfides, as well as calcium oxide with ammonium chloride, is investigated experimentally. A process flowsheet of the closed cycle of processing the copper-containing raw material using ammonium chloride is suggested.

Original languageEnglish
Pages (from-to)377-381
Number of pages5
JournalRussian Journal of Non-Ferrous Metals
Volume51
Issue number5
DOIs
Publication statusPublished - 2010

Keywords

  • ammonium chloride
  • copper sulfide
  • iron sulfide

ASJC Scopus subject areas

  • Mechanics of Materials
  • Surfaces, Coatings and Films
  • Metals and Alloys

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