M. BayanmunkhB. AnkhzayaAnujin MunkhnasanB. Batbayar2025-10-052022https://gmitlibrary.net/handle/123456789/54The objective of this study was to investigate the effect of different primary grind sizes for the Cu (copper) and Fe (iron) recovery of the Phase 4B high-grade gold ore, which is from the southwestern deposit of the Oyu Tolgoi deposit. A series of nine rougher flotation tests have been completed to assess the primary grind size at the Mineral Processing laboratory of German-Mongolian Institute for Resources and TechnologyenThesis