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Canada Carbon (TSXV: CCB) announced it had received a preliminary update on results from its Miller property which showed a better than 99.8 percent C(t) graphite purity. The primary objectives of the company’s pilot plant operation are to generate larger quantities of graphite flotation concentrate for downstream evaluation, and to provide process data to facilitate future engineering studies, including a PEA.
According to the press release:
Mechanical and metallurgical commissioning of the 500 kilograms per hour (“kg/h”) flotation pilot plant at the SGS Lakefield site commenced on September 8th, 2014. During this commissioning period, process grab samples were collected intermittently to facilitate the optimization of the metallurgical performance.
The +48 mesh, +65 mesh, and +80 mesh product sizes of a pilot plant grab sample were submitted for a GDMS analysis by Evans Analytical in Syracuse, NY. The results of both the total carbon analysis by Leco and GDMS analyses are presented in the table below. While these results were generated from circuit grab samples during pilot plant commissioning and do not represent comprehensive survey samples, they confirm that the very high graphite concentrate grades obtained with the 50 kg bulk sample can be replicated on a pilot plant scale processing 500 kg/h.
R. Bruce Duncan. Executive Chairman and CEO, said:
We are very encouraged that the preliminary results from the pilot-scale flotation of our lower grade Miller hydrothermal graphite can return purity values comparable to our best bench-scale results. This indicates that high purity from flotation alone can be achieved regardless of head grade. Expensive secondary treatment such as caustic bake and acid leach may not be necessary to produce a high purity, high value product.
Click here to read the Canada Carbon Inc. (TSXV:,CCB) press release
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