Black Rock achieves world first, ultra-high graphite grade
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Tanzanian graphite developer BlackRock Mining Limited (ASX:BKT) has reported a world first pilot plant productionof ultra-high graphite concentrate grade of over 99% using flotation methodsonly.
The test was conducted as part ofan upgrade program during recent pilot plant testing at SGS Lakefield in Canadafor BKT's 100%-owned Mahenge Graphite Project in Tanzania.
Mahenge Graphite Project is one ofthe largest JORC-compliant flake graphite Mineral Resource Estimates globally,with a Mineral Resource Estimate of 211.9m tonnes at 7.8% graphite (TGC) for16.6m tonnes of contained graphite. Importantly, more than 50% of the MineralResource is in the Measured and Indicated categories.
It should be noted that BKT is anearly stage play and anything can happen, so seek professional financial adviceif considering this stock for your portfolio.
Get the latest articles straight to your inboxkeep me postedHere is a summary of the testproduction of Ultra class concentrate from Ulanzi:
Black Rock's CEO John de Vriescommented: "We are not aware of any deposit that is capable of producing 99.3%grade concentrate by standard flotation alone. Being able to generate ultra-highgrade product using flotation is of significant value to downstream processorswho are increasingly finding environmental constraints impacting theirbusiness. The value proposition of producing high specification concentrate hasbeen validated by Syrah Resources' recent announcement of planned increases ofBalama concentrate grades to a targeted 97%-98% TGC."
"We are particularly pleased withthe minimal flake degradation during the additional polishing. With over 55% ofthe ultra grade concentrate reporting to the large and jumbo fraction, thissimply underlines how remarkable Mahenge flake really is."
"We believe through the consistentdelivery of outstanding results and steadily progressing the project, Mahengeis demonstrating itself as the best undeveloped graphite project availableglobally."
Pilot Plant Testworks SGSLakefield in Canada completed the pilot plant test work, processing 90 tonnesof Mahenge ore, comprising 50 tonnes from Cascades and 40 tonnes from Ulanzi.Mechanical commissioning was completed on 21 March 2018 with primary circuitprocessing completed on 5 April 2018. Ultra grade concentrate was delivered byrepossessing 97.5% premium concentrate.