Montezuma Mining Company Ltd (“Montezuma” or “Company”) (ASX:MZM) is pleased to announce that the Commonwealth Scientific and Industrial Research Organisation (“CSIRO”) Process Science and Technology Group has successfully completed Stage I of the research and development studies into the production of high purity manganese products from ores sourced from the Company’s 100% owned, infrastructure endowed Butcherbird Project in Western Australia. Results exceeded expectations.
As quoted in the press release:
CSIRO has completed Stage I (leach optimisation stage) of hydrometallurgical processing studies to produce high value battery materials from the Butcherbird Manganese Deposit (100% MZM).
Final leaching results produce a Pregnant Leach Solution (“PLS”) with >91% purity and >95% Mn extraction in a rapid single stage leach under benign conditions;
• atmospheric pressure and ambient temperature.
• leaching rates unaffected by grind size up to 1mm. Coarser particle size tests pending.
• leach kinetics are very rapid with optimal residence times between thirty and sixty minutes.
• reaction is exothermic, producing heat energy for use in purification processing stage – no additional energy required.