Skip to main content
Disciplines
Automotive Business IT + Informatics Construction + Real Estate Electrical Engineering + Electronics Energy + Sustainability Insurance + Risk Finance + Banking Management + Leadership Marketing + Sales Mechanical Engineering + Materials
Events
DE
EN
Books
Journals
Topic Page
Marketing
Start single access now
Access for companies
EXTENDED SEARCH
Log in
Top
Published in:
Role of Research in Non-ferrous Metallurgy Development—Peter Hayes’ Contributions to Modern Pyrometallurgy Read chapter Read first chapter

2018 | OriginalPaper | Chapter

In Situ Precipitation of Scorodite in Atmospheric Leaching of Enargite

Authors : Fazel G. Jahromi, Ahmad Ghahreman

Published in: Extraction 2018

Publisher: Springer International Publishing

Log in

Activate our intelligent search to find suitable subject content or patents.

search-config
loading …

Abstract

Enargite, known as one of the major arsenic containing copper minerals, with approximately 19% arsenic, introduces challenges to typical processing options. In most hydrometallurgical processing methods, arsenic remediation occurs after the copper recovery in an autoclave or in a stepwise neutralization process. In this study, the in situ precipitation of scorodite was investigated during an atmospheric leaching process in the presence of carbon-based catalysts and chloride media. The effective parameters of initial ferric addition, temperature, catalyst addition, and oxygen sparging rate were studied and the ferric behaviour was monitored during the scorodite precipitation. The most influential parameters on efficient scorodite precipitation are found to be: initial ferric addition, catalyst to concentrate ratio, and temperature. A 99% scorodite precipitation yield was achieved in this process.

Dont have a licence yet? Then find out more about our products and how to get one now:

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

  • über 102.000 Bücher
  • über 537 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Maschinenbau + Werkstoffe
  • Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

inform now

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

  • über 67.000 Bücher
  • über 390 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Maschinenbau + Werkstoffe




 

Jetzt Wissensvorsprung sichern!

inform now
previous chapter The Hydrothermal Reaction and Kinetic of Enargite
next chapter Solubility of Rare Earth Salts in Sulphate-Phosphate Solutions of Hydrometallurgical Relevance
Literature
1.
Filippou D, Demopoulos GP (1997) Arsenic immobilization by controlled scorodite precipitation. JOM 49(12):52–55CrossRef
2.
Robins RG (1987) Solubility and stability of scorodite, FeAsO4•2H2O: discussion. Am Mineral 72:842–844
3.
Dutrizac JE, Jambor JL (1987) The behaviour of arsenic during jarosite precipitation: arsenic precipitation at 97 °C from sulphate or chloride media. Can Metall Q 26(2):91–101CrossRef
4.
Demopoulos GP, Droppert DJ, Van Weert G (1995) Precipitation of crystalline scorodite (FeAsO4•2H2O) from chloride solutions. Hydrometallurgy 38(94):245–261CrossRef
5.
Droppert DJ (1996) The ambient pressure precipitation of crystalline scorodite (FeAsO4•2H2O) from sulphate solutions. McGill
6.
Demopoulos GP (2014) Arsenic immobilization research advances: past, present and future. In: COM 2014
7.
Choi Y, Ghahremaninezhad A, Ahern N (2014) Process for activated carbon-assisted oxidation of arsenic species in process solutions and waste waters. In: COM 2014, pp 1–9
8.
Dutrizac JE, MacDonald RJC (1972) The kinetics of dissolution of enargite in acidified ferric sulphate solutions. Can Metall Q 11(3):469–477CrossRef
9.
Jahromi FG, Cowan DH, Ghahreman A (2017) Lanxess Lewatit® AF5 and activated carbon catalysis of enargite leaching in chloride media; a parameters study. Hydrometallurgy 174(May):184–194CrossRef
10.
Parker AJ, Paul RL, Power GP (1981) Electrochemical aspects of leaching copper from chalcopyrite in ferric and cupric salt solutions. Aust J Chem 34(1):13–34CrossRef
11.
Miki H, Nicol M (2008) The kinetics of the copper-catalysed oxidation of iron(II) in chloride solutions. In: Hydrometallurgy 2008: 6th International Symposium, pp 971–979
12.
Padilla R, Girón D, Ruiz MC (2005) Leaching of enargite in H2SO4–NaCl–O2 media. Hydrometallurgy 80(4):272–279CrossRef
13.
Le Berre JF, Gauvin R, Demopoulos GP (2008) A study of the crystallization kinetics of scorodite via the transformation of poorly crystalline ferric arsenate in weakly acidic solution. Colloids Surf A Physicochem Eng Asp 315(1–3):117–129CrossRef
14.
Ahumada E, Lizama H, Orellana F, Suarez C, Huidobro A, Seoulveda-Escribano A, Rodriquez-Reinoso F (2002) Catalytic oxidation of Fe (II) by activated carbon in the presence of oxygen. Effect of the surface oxidation degree on the catalytic activity. Carbon N Y 40:2827–2834CrossRef
Metadata
Title
In Situ Precipitation of Scorodite in Atmospheric Leaching of Enargite
Authors
Fazel G. Jahromi
Ahmad Ghahreman
Copyright Year
2018
Book
Extraction 2018

Print ISBN: 978-3-319-95021-1

Electronic ISBN: 978-3-319-95022-8

Copyright Year: 2018

DOI
https://doi.org/10.1007/978-3-319-95022-8_134

Premium Partners

    Image Credits