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Giyani Metals Receives Positive Leaching Results
Not for distribution to U.S. newswire services or for dissemination in the United States OAKVILLE, Ontario, May 06, 2019 (GLOBE NEWSWIRE) -- Giyani Metals Corp.
About this update from Giyani Metals Corp
[{"type":"text","content":" Not for distribution to U.S. newswire services or for dissemination in the United States OAKVILLE, Ontario, May 06, 2019 (GLOBE NEWSWIRE) -- Giyani Metals Corp. (TSXV:EMM) (FRANKFURT:KT9) (WKN:A2DUU8) (“Giyani” or the “Company”) is pleased to announce the first results from its phase-two hydrometallurgical test program that covers all three components of purification starting with leaching, through solvent extraction, and finishing with electrowinning. Last year Giyani completed phase-one hydrometallurgical testing which only included the leaching of manganese mineralized material from its K.Hill deposit in Botswana. As part of the phase-two program, these leach tests had to be repeated to provide enough material for the subsequent solvent extraction tests. These repeated tests have confirmed and improved the results from last year. Leaching is the first, and most critical, phase in a three-step purification process that is designed to produce high purity electrolytic manganese metal (EMM). The second step, solvent extraction, is currently in progress and will be followed shortly by the third and final step, electrowinning. Two main samples were tested MT10 and MT11. MT10 was assayed at 24.7% Mn and MT11 was assayed at 30.72% Mn. A series of leach tests were performed on the two samples to determine the leaching response of manganese with time. The leaching test results show that manganese recovery was approximately 94% with most of the recovery occurring within the first hour of residence time. A summary of the manganese recoveries is shown in Table 1 below. Test MT10 MT11 Mn recovery with reductant 91±3% 94±3% Robin Birchall, CEO of Giyani commented: “We are very pleased with the leaching results as they reflect a much higher recovery at 94% compared to the lower and more conservative 60% that was used for our maiden mineral resource estimate announced back in September 2018. These improved test results not only bode well for further hydrometallurgical tests but will also, ultimately, result in a lower cut-off grade for our K.Hill resource with the obvious corresponding impacts on the resource size.” The leaching tests were performed on samples collected from drill cores extracted during the Company’s drilling program in the summer of 2018. The cores were from a hole that was specifically drilled for hydrometallu...