Copper precipitation during leaching of various copper sulfide concentrates with cupric chloride in acidic solutions

Mari Lundström; Jussi Liipo; Pekka Taskinen; Jari Aromaa

doi:10.1016/j.hydromet2016.10.017

Copper precipitation during leaching of various copper sulfide concentrates with cupric chloride in acidic solutions

Department of Chemical and Metallurgical Engineering

Outotec Research Center

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36 Citations (Scopus)

Abstract

The leaching behavior of copper sulfides in concentrated cupric chloride solution at 95 degrees C and at ambient pressure was studied in order to scrutinize the leaching behavior of a single bornite and four different chalcopyrite concentrates obtained from various mines around the world. The highest chalcopyrite oxidation was achieved with the highest pyrite content in the concentrate, suggesting galvanic effect on chalcopyrite dissolution. It was found that iron and copper from chalcopyrite did not dissolve into the solution in an equal ratio, as expected. A significant amount of copper precipitated at pH

Original language	English
Pages (from-to)	136-142
Number of pages	7
Journal	Hydrometallurgy
Volume	166
DOIs	https://doi.org/10.1016/j.hydromet2016.10.017
Publication status	Published - Dec 2016
MoE publication type	A1 Journal article-refereed

Keywords

CuS precipitation
Sulfide concentrates
Chloride solution
Chalcopyrite
Bornite
CHALCOPYRITE
DISSOLUTION
THERMODYNAMICS
ELECTROLYTES
MEDIA
IRON

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title = "Copper precipitation during leaching of various copper sulfide concentrates with cupric chloride in acidic solutions",

abstract = "The leaching behavior of copper sulfides in concentrated cupric chloride solution at 95 degrees C and at ambient pressure was studied in order to scrutinize the leaching behavior of a single bornite and four different chalcopyrite concentrates obtained from various mines around the world. The highest chalcopyrite oxidation was achieved with the highest pyrite content in the concentrate, suggesting galvanic effect on chalcopyrite dissolution. It was found that iron and copper from chalcopyrite did not dissolve into the solution in an equal ratio, as expected. A significant amount of copper precipitated at pH",

keywords = "CuS precipitation, Sulfide concentrates, Chloride solution, Chalcopyrite, Bornite, CHALCOPYRITE, DISSOLUTION, THERMODYNAMICS, ELECTROLYTES, MEDIA, IRON",

author = "Mari Lundstr{\"o}m and Jussi Liipo and Pekka Taskinen and Jari Aromaa",

year = "2016",

month = dec,

doi = "10.1016/j.hydromet2016.10.017",

language = "English",

volume = "166",

pages = "136--142",

journal = "Hydrometallurgy",

issn = "0304-386X",

publisher = "Elsevier",

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TY - JOUR

T1 - Copper precipitation during leaching of various copper sulfide concentrates with cupric chloride in acidic solutions

AU - Lundström, Mari

AU - Liipo, Jussi

AU - Taskinen, Pekka

AU - Aromaa, Jari

PY - 2016/12

Y1 - 2016/12

N2 - The leaching behavior of copper sulfides in concentrated cupric chloride solution at 95 degrees C and at ambient pressure was studied in order to scrutinize the leaching behavior of a single bornite and four different chalcopyrite concentrates obtained from various mines around the world. The highest chalcopyrite oxidation was achieved with the highest pyrite content in the concentrate, suggesting galvanic effect on chalcopyrite dissolution. It was found that iron and copper from chalcopyrite did not dissolve into the solution in an equal ratio, as expected. A significant amount of copper precipitated at pH

AB - The leaching behavior of copper sulfides in concentrated cupric chloride solution at 95 degrees C and at ambient pressure was studied in order to scrutinize the leaching behavior of a single bornite and four different chalcopyrite concentrates obtained from various mines around the world. The highest chalcopyrite oxidation was achieved with the highest pyrite content in the concentrate, suggesting galvanic effect on chalcopyrite dissolution. It was found that iron and copper from chalcopyrite did not dissolve into the solution in an equal ratio, as expected. A significant amount of copper precipitated at pH

KW - CuS precipitation

KW - Sulfide concentrates

KW - Chloride solution

KW - Chalcopyrite

KW - Bornite

KW - CHALCOPYRITE

KW - DISSOLUTION

KW - THERMODYNAMICS

KW - ELECTROLYTES

KW - MEDIA

KW - IRON

U2 - 10.1016/j.hydromet2016.10.017

DO - 10.1016/j.hydromet2016.10.017

M3 - Article

SN - 0304-386X

VL - 166

SP - 136

EP - 142

JO - Hydrometallurgy

JF - Hydrometallurgy

ER -

Copper precipitation during leaching of various copper sulfide concentrates with cupric chloride in acidic solutions

Abstract

Keywords

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