Canadian junior diamond miner, Lucara Diamond has completed Mega Diamond Recovery (MDR) and the Sub-middles XRT capital projects within budget and ahead of schedule at its Karowe Mine in Botswana
The new MDR circuit treats material in the size range between 50mm and 120mm and is located directly post the primary crusher and ahead of the process plant.
According to the company, this design maximizes the upfront recovery of exceptional diamonds prior to the comminution processes where diamond damage may occur and revenue lost.
The commissioning of the circuit has been completed and the system has been integrated into the existing process stream.
Meanwhile the sub-middles XRT circuit processes material in the size range between 4mm and 8mm has replaced the need for a dense medium circuit and five diamond recovery unit processes for treating diamonds within this size fraction.
The commissioning of the circuit has been completed and verification of the diamonds recovered within this size frequency distribution is being confirmed against historical recoveries.
“The commissioning of the MDR and Sub-middles XRT circuits advances the Company’s ability to efficiently recover its diamonds and maximize value for its exceptional diamonds.
The Sub-middles XRT circuit cost effectively processes the variable yield material from the south lobe through the utilization of a single unit process which reduces feed to the more costly concentration and recovery processing units,” said William Lamb, President and Chief Executive Officer of Lucara.
Lamb said the completion of the two capital projects concludes major capital expenditures for upgrading the process facilities, funded from internal cash-flows.
Lucara is a leading independent producer of large exceptional quality Type IIa diamonds from its 100% owned Karowe Mine in Botswana.