Valentine Gold Project Metallurgy Marathon Gold
Ore characterization included chemical head analysis on material from five sub zones representing each of the Marathon and Leprechaun deposits. The same sub zones were subjected to comminution testing including bond rod mill work index RWi ball mill work index BWi and abrasion index Ai tests.
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Gold Extraction Process Development
parameters for gold ores: Autogenous media competency Bond abrasion index Bond ball mill work index Bond impact crushing work index Bond rod mill work index Comparative work index High pressure grinding rolls HPGr up to 10tph Inferred work index JK dropweight test Levin open circuit grindability
Characterisation of the Physical and Metallurgical Properties
1 The natural iron ores from all Muko deposits have high physical property values Tumbler Index is 85 93 wt Abrasion Index is 0.5 3.4 wt and Shatter Index is 0.5 2.0 wt . Therefore these ores can be easily handled loaded transported and charged into a reduction furnace without disintegrating into small particles in the form of dust.
Table of Bond Work Index by Minerals
Source 1: Table of materials reported by Fred Bond. Source 2: Outokumpu The science of comminution. Source 3: Equipment and pipelines. Source 4: Tenova Bateman mills AG/SAG Rod Ball Mills Source 5: Doering international GmbH cylpebs.com. Source 6: SME handbook of mineral processing N.L Weiss Editor NY 1985.