American Manganese has signed a third contribution agreement with the National Research Council of Canada Industrial Research Assistance Program (NRC-IRAP) to continue the successful development of a hydrometallurgical process to extract and recover high purity manganese from lower grade domestic resources within North America.
The success of that program has led to the development of a proprietary process that will be the subject of an application for patent protection. Extensive studies and tests were conducted by the US Bureau of Mines (USBM) over more than forty years. The recent developments have resulted in a treatment strategy that involves an innovative application of modern commercial process equipment. The result will be a more robust, complete flow sheet with reduced operating costs to recover manganese from lower grade resources.