Laval University From the SelectedWorks of Ahmet Deniz Bas 2015 Improvement of Silver Extraction by Ultra–fne Grinding Prior to Cyanide Leaching of the Plant Tailings of a Refractory Silver Ore Oktay Celep Ahmet Deniz Bas, Laval University Ersin Y Yazici, Karadeniz Technical University Ibrahim Alp, Karadeniz Technical University Haci Deveci, Karadeniz Technical University Available at: htp://works.bepress.com/adeniz_bas/3/