West Cobar looks to develop antimony product stream with strong recoveries

West Cobar Metals Ltd (ASX:WC1) has achieved antimony recoveries of 93% and 88% through different techniques during metallurgical testing for its Bulla Park copper-antimony-silver project in New South Wales.

Recoveries of 93.6% of feed antimony were achieved through flotation testing, while leach testing yielded an extraction rate of 88.2% during the ongoing sighter test work, which is working towards development of two product streams: copper-silver concentrate low in arsenic, and antimony.

The company has been carrying out metallurgical test work on Bulla Park ore since January, with both float and leach tests being carried out, and most recently, turning to the assessment of antimony extraction.

Managing director Matt Szwedzicki said this was an important development for the project, which is located west of Cobar, and which is built around a bulk tonnage, potentially open pittable copper-antimony-silver deposit.

“The latest leach test in our series has shown that antimony can be successfully separated at high recovery from the copper concentrate using a simple and straightforward flotation and leaching process that produces high copper, silver and antimony recoveries,” he said.

“The results are particularly encouraging due to the significant mass reduction of the
concentrate after flotation – which should help to reduce processing costs.

“These results continue to give us confidence that we can extract and potentially sell the high value and sought after copper, antimony and silver content.”

In another development for the company, West Cobar Metals told investors on Wednesday that it was looking to acquire the Mystique Gold project in Western Australia’s Fraser Range.

WC1‘s price moved up on the news, and at 1:44pm was trading at 1.9 cents a share – a rise of 11.76% since the market opened this morning.

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