Thursday 29th June 2017

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Castle Silver Resources readies bulk cobalt extraction, end-user samples and lithium-cobalt recycling

by Greg Klein | June 6, 2017

Pursuing the cobalt potential of a former high-grade silver mine, Castle Silver Resources TSXV:CSR keeps busy on a number of fronts. With underground bulk extraction in progress at Ontario’s Castle past-producer, the company has sent part of its first sample containing visible cobalt to an assay lab. The rest of the sample will go through the company’s proprietary Re-2OX hydrometallurgical process to produce cobalt powders for evaluation by battery manufacturers.

Castle Silver Resources readies bulk cobalt extraction, end-user samples and lithium-cobalt recycling

Previously collected samples show the pinkish cobalt
oxidation typically found on Castle Silver’s project.

Located about 80 kilometres northwest of Ontario’s historic Cobalt camp, the mine operated on and off between 1917 and 1988, producing 9.5 million ounces of silver and 299,847 pounds of cobalt. This Phase I program on the 3,252-hectare project has more bulk sampling planned, while 3D modelling is underway using the historic info.

With an eye on recycling opportunities, Castle Silver has also been testing its “highly adaptable” Re-2OX process for cobalt-lithium recovery from Li-ion batteries. Re-2OX strips battery casings to leach the cathodes and create a high-purity precipitate containing the metal. The company expects to release first-stage results soon from SGS Lakefield.

Last month Castle Silver closed an oversubscribed second tranche of a private placement that has so far totalled $966,500. The company has since raised the total offer to $1.2 million.

Within the Cobalt camp 80 kilometres southeast, Castle Silver holds a 100% option on the Beaver and Violet cobalt-silver properties.

Read about cobalt supply and demand.

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