Significance of feed classification by hydrocycloning on flotation copper recovery

Farrokhpay, Saeed, Manouchehri, Hamid Reza and Grano, Stephen (2010) Significance of feed classification by hydrocycloning on flotation copper recovery. Canadian Metallurgical Quarterly, 49 2: 107-112.

Author Farrokhpay, Saeed
Manouchehri, Hamid Reza
Grano, Stephen
Title Significance of feed classification by hydrocycloning on flotation copper recovery
Journal name Canadian Metallurgical Quarterly   Check publisher's open access policy
ISSN 0008-4433
1879-1395
Publication date 2010-04
Sub-type Article (original research)
Volume 49
Issue 2
Start page 107
End page 112
Total pages 6
Place of publication Leeds, United Kingdom
Publisher Maney Publishing
Language eng
Formatted abstract
This paper focusses on the effect of feed classification by hydrocycloning on copper recovery of a complex copper-lead-zinc sulphide ore from Somincor in Portugal. The d80 of the feed sample obtained from the plant was 45 um. A series of flotation tests and solution/surface analyses were performed. The copper recovery was higher when the feed was reground to d80 of about 18 um. Surface analysis indicated that the ore surface is heavily oxidized. The presence of oxidized lead and zinc on the surfaces may be effective on copper recovery. The feed was classified using a hydrocyclone to fine and coarse fractions obtaining d80 values of 7 and 65 um, respectively and flotation tests were conducted on each fraction. Higher copper recovery was obtained from the hydrocyclone products (both fine and coarse fractions) compared to the unclassified feed. It is concluded that the improved flotation behaviour after hydrocycloning is due to surface cleaning.
Keyword Copper recovery
Froth flotation
Hydrocyclone
Sulphide ores
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Julius Kruttschnitt Mineral Research Centre Publications
 
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Created: Mon, 22 Aug 2011, 13:04:52 EST by Karen Holtham on behalf of Julius Kruttschnitt Mineral Research Centre