OZ Minerals forms agreement with Cobalt Blue

Cobalt Blue's Thackaringa cobalt project in Broken Hill. Image: Cobalt Blue.

Broken Hill energy solutions company Cobalt Blue has entered into a test work cooperation agreement with OZ Minerals.

The main aim of the agreement is to test whether Cobalt Blue’s processing technology will recover cobalt, copper and gold from a pyrite concentrate and assess if high purity cobalt sulphate can be produced from it.

Cobalt Blue has successfully developed a processing technology for the recovery of cobalt from pyrite at its Broken Hill Thackaringa cobalt project.

This was part of a pre-feasibility study in 2018, where Cobalt Blue recovered 85 to 86 per cent from ore to final cobalt sulphate.

OZ Minerals is scheduled to commission the Carrapateena copper-gold project in South Australia later this year, which is about 360 kilometres northwest of the Broken Hill cobalt project.

It has been discussing the possible similarities between the cobalt-pyrite minerals at Broken Hill, to take this information to its new venture at Carrapateena.

OZ Minerals is providing Cobalt Blue with a 10 to 15-kilogram sample of pyrite concentrate to assist with the initial testing, which is focussing on the technical viability of the technology, therefore will not optimise metal recoveries.

Metal recovery however, may be the subject of further studies, should the first be successful.

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