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During prolonged periods of crusher maintenance the ore walls can be bulldozed over the ore feeders to provide an uninterrupted supply of ore for milling. GRINDING COPPER ORE As it is shown in this study the ¾" or 1″ crushed ore is fed to a rod mill operating in open circuit and discharging a product approximately minus 14-mesh.
2.2.4. Grinding-Flotation Tests To investigate the ultimate grinding ﬁneness of this ore, ﬁve grinding ﬁneness including 74 m 63%, 74 m 76%, 74 m 84%, 74 m 92%, and 74 m 95% were chosen for those tests. Wet grinding of microcrystalline graphite was conducted in …
The mineralogical character of the ore determines, in a way, the character of the principal flotation agent or "oil" to be used. From this statement it is not to be understood that for a given ore one and only one oil can be used or even, disregarding for the moment the commercial consideration of availability, can be best used.
What Ore is Suitable for Flotation The largest class of ores treated by the flotation process consists of those containing the sulphide minerals of copper ; these sometimes contain native copper and also gold and silver, all of which can generally be floated with the sulphide minerals in one concentrate.
the amount of water required to process copper sulfide ore through a conventional crush-grind-flotation-concentrate circuit ranges from roughly 1.5 metric tons (t) to about 3.5 t of water to process 1 t of ore [Wels and Robertson, 2003, 2004; Misra and others, 2005; Wills and Napier-Munn, 2006; Chilean
To process this type of ore, a one-stage grinding and flotation process with two grindings and one selection can be used. When the impregnation particle size is fine and not uniform, and the particle size range for monomer separation is wide, a two-stage grinding and flotation process in which the first stage of flotation ore is reground and ...
This paper investigates the change in liberation and flotation performance on a commercially exploited porphyry copper ore at the nominal plant grind size and a coarser grind size at the coarse end of the normal flotation range after high power density microwave treatment.
The objective of this study was to investigate optimum grind of a blended copper ore comprising sulphide and oxide minerals with a view to achieving an optimal flotation performance in the treatment of the Konkola Copper Mines ore in Chilabombwe. Furthermore, the study sought to establish the relationship between recovery and grind. 2. Methodology
There is evidence that this combination of crushing and grinding results in lower costs for reducing large tonnages of ore to flotation size. Grinding Porphyry Copper Ore The flowsheet illustrates a typical grinding circuit with a rod mill in open circuit. Its discharge, usually all —14 mesh, goes to a classifier for removal of finished material.