April 13, 2015

Montero's Bulk Leach Metallurgical Testing Returns 94% to 97% Total Rare Earth Element Recoveries at Wigu Hill Project


TORONTO, ONTARIO--(Marketwired - April 13, 2015) - Montero Mining and Exploration Ltd. (TSX VENTURE:MON) has received positive results from bulk leach testwork completed on three samples of REE bearing carbonatite dike material from Montero's Wigu Hill Project in Tanzania. Mintek reported that all samples returned very promising leaching efficiencies, with rare earth elements (REE) extraction recoveries of between 94% and 97% TREE (Total Rare Earth Elements). Initial hydrometallurgical testwork undertaken on similar mineralized material in 2011 (see news release - 29/11/2011) was successful in identifying a hydro-metallurgical 3-stage leaching process to extract the REE in solution.




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