Contact us

Phone: +27 86 11(2 9638) (AZMET)
Email: admin@azmet.co.za

Physical Address:

First Floor, Zerwick Pavilion,
Block 5, Gleneagle Office Park
Cnr. of Monument and Braambos Roads
Glen Erasmia
Kempton Park
1619
South-Africa

Postal Address:

P.O. Box 12479
Aston Manor
Kempton Park
1619
South Africa

2015 AZMET was awarded a SMPP contract for the Kibali operation, in the DRC, to implement the Desliming Cyclone Circuit which was part of an optimisation project to improve the overall pumpcell plant recovery.

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SMPP Desliming Cyclone Project
SMPP Desliming Cyclone Project

AZMET has been awarded a contract for the design, supply and commissioning for a 2t Carbon Batch Gold Desorption

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Gold Desorption & Recovery Plant
Gold Desorption & Recovery Plant

In Q4, 2015 AZMET was awarded a contract for the Tongon operation, in the Ivory Coast, to implement a 4th Stage Crushing Circuit as part of an optimisation project to improve the overall plant capacity.

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Quaternary Crusher Upgrade Project
Quaternary Crusher Upgrade Project
Cu & Co Treatment – Desktop Study

Background

This Desktop study was conducted to develop an understanding of the metallurgical requirements for the Treatment of an existing tailings stockpile in the DRC.

Summary

The establishment of operations for the Stockpile Project is based upon a simple dry recovery of the tailings from the stockpile using front end loaders (FEL).

The study assumes that acid leaching will provide the required dissolutions recovery based on historical sample assay results.

This study considered various flowsheet options which evaluated conventional direct acid leaching to generate a copper and cobalt pregnant solution (PLS) that can be sold to the neighboring process plants as the base case. Alternative options also considered a final copper cathode and cobalt precipitate salt to increase the possible LME value. A high level financial tradeoff resulted in selecting a small plant throughput, with the least capital cost, but still producing a final copper and cobalt product for maximum metal revenues.

Different flowsheets were compared. This included the provisional development of operating and capital costs for each flowsheet as part of an options study, before a choice was made to take the preferred flowsheet forward.

The chosen flowsheet is simplistically described as:

  • The recovery of material from the stockpile.
  • Curing and leaching of the recovered stockpile material with reagents.
  • Solid/liquid separation.
  • Separation of copper and cobalt in a solvent extraction plant.
  • Electrowinning of copper to produce a copper cathode.
  • Cobalt will be precipitated out separately as a saleable cobalt salt.
All
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