Tulkubash – 4t ADR Plant & Reagents In Q4, 2019 AZMET has been awarded an LSTK contract for the detail design & engineering of a 4 ton Carbon Batch, Gold Adsorption, Desorption and Recovery Plant (ADR Plant) for the CHAARAT Tulkubash Gold Heap Leach operation in Kyrgyzstan, with the following key features


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Kyrgyzstan
Kyrgyzstan

PrepQuip PGM Plant ExpansionIn Q1, 2018 AZMET has been awarded a contract for the structural and civil design for the flotation expansion project under supervision of PrepQuip on a PGM plant.


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Meli Gold Mine – 2t DR Plant & Reagent Systems In Q4, 2015 AZMET has been awarded a LSTK contract for the design, supply and commissioning of a containerised, 2 ton Carbon Batch, Gold Desorption and Recovery Plant (DR Plant) for the Meli Gold Mine in Ethiopia, incorporating the following processes:


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Ethiopia
Ethiopia

Tongon – Quaternary Crusher Upgrade ProjectIn 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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Ivory Coast
Ivory Coast

Tongon – LSTK Gold Room Scrubber SystemIn Q1, 2015 AZMET was awarded a LSTK contract for the Tongon operation, in the Ivory Coast


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Ivory Coast
Ivory Coast

HASSAI – 2t DR Plant & Reagent SystemsIn Q4,2017 AZMET has been awarded a LSTK contract for the design, supply and commissioning of a 2 ton Carbon Batch, Gold Desorption and Recovery Plant (DR Plant) for the Hassai Gold Mine operations in Sudan


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Sudan
Sudan

In Q1,2017 AZMET has been awarded an EPCM contract for the design, supply and commissioning of a 4 ton Carbon Batch, Gold Adsorption, Desorption and Recovery Plant (ADR Plant) for the Lydian Amulsar gold heap leach operation in Armenia.


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Armenia
Armenia

In Q4,2015 AZMET has been awarded a LSTK contract for the design, supply and commissioning of a containerised, 2 ton Carbon Batch, Gold Desorption and Recovery Plant (DR Plant) for the Meli Gold Mine in Ethiopia.


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Ethiopia
Ethiopia

In Q1,2016 AZMET has been awarded a LSTK contract for the design, supply and commissioning of a containerised, 2 ton Carbon Batch, Gold Desorption and Recovery Plant (DR Plant) for the Eti Bakir operations In Turkey.


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Turkey
Turkey
Cu & Co Tailings Retreatment – Technical Assessment

Background

This study was conducted to develop an understanding of the metallurgical and infrastructure requirements for the retreatment of flotation tailings dams in Zambia.

Summary

Earlier studies identified direct acid leaching as the flowsheet of choice for the metallurgical plant. Due to very high acid consumptions during testwork this flowsheet option was demonstrated as non-feasible when assessed economically.

This study considered various flowsheet options and tested these in the laboratory to identify the reagent consumptions and recoveries for each. Throughout the testwork phases the key consideration was to identify a process flowsheet which resulted in reduced acid consumption or alternative reagents but at the same time achieved reasonable recoveries of both copper and cobalt that resulted in an economic viable project.

The study looked at methods to reduce the reagent utilisation by identifying conditions under which lower consumption of reagents was achieved. This thought process was duly followed in carrying out further testwork. This resulted in the identification of a flowsheet with shorter leaching times and in particular the total

acid consumption was reduced down to less than 40kg/t.

The chosen flowsheet is simplistically described as:

  • The recovery of tailings.
  • AZMET Reduced Leaching (AZ-RLT) of the recovered tailings with sulphuric acid.
  • Separation of cobalt and copper in a solvent extraction plant.
  • Electrowinning of copper to produce a copper cathode.
  • Cobalt will be precipitated out separately as a cobalt salt.

AZMET’s proprietary Reduced Leach Technology (AZ-RLT) was used, which resulted in an economical process on the samples tested.

All