A flotation model developed at the Julius Kruttschnitt Mineral Research Centre was used to predict the performance of copper rougher and scavenger circuits at the copper concentrator at Mount Isa ...
1. Introduction. Slags are a left-over of the pyrometallurgical stages of recovery of non-ferrous metals from sulfide materials. Production of 1 t of copper results on average in formation of 2.2 t of slag; the annual global output of copper-smelting slags is ~ 25 Mt (Gorai et al., 2003).Due to the absence of an accepted efficient technology for …
Area site preparation under way at the Copper Concentrator. The Ball Mill shell arrives into Mount Isa along Marian Street. The massive 3,500hp mill motor being lifted into position. Over recent years, incremental throughput projects have been completed at the Concentrator allowing a greater volume of material to be processed in a 24-hour period.
environment on the flotation behaviour of Mt Isa copper and lead-zinc ore, International Journal of Mineral Processing, 30:67-97. Gray, M P, Harbort, G J and Murphy, A S, 1998.
Selective flotation of carbon (preflotation stage) is utilised in order to remove carbonaceous material from downstream processing stages. ... Similarly, a 60/40 mixture of dextrin and naphthalene disulphonate was used at the copper concentrator at Mt. Isa, in order to depress iron sulphide gangue minerals coated with hydrophobic graphitic ...
Explore millions of resources from scholarly journals, books, newspapers, videos and more, on the ProQuest Platform.
A flotation model developed at the Julius Kruttschnitt Mineral Research Centre was used to predict the performance of copper rougher and scavenger circuits at the copper concentrator at Mount Isa Mines. The model describes the kinetic response of an ore in a flotation cell in terms of ore floatability, cell characteristics and froth recovery.
Mount Isa Mines Copper Operation (MICO) is one of the largest copper producers in Australia. The concentrator has a complex circuit, which includes a pre …
Analysis of the Mount Isa Copper concentrate preflotation circuit using advanced diagnostic techniques ... modelling and surface chemical analysis to comprehensively study a flotation circuit. In this case, it enabled the particle recovery mechanisms to be determined and provided a diverse list of strategies for circuit improvement, many of ...
The flotation tests were designed to evaluate the natural floatability of both chalcopyrite and pyrite, and as such, are similar to the pre-flotation circuit of the Mount Isa Mines Copper ...
Analysis of the Mount Isa Copper concentrate preflotation circuit using advanced diagnostic techniques ... modelling and surface chemical analysis to comprehensively …
Mount Isa Mines Copper Operation (MICO), owned by Glencore, is one of the largest copper producers in Australia. The concentrator has a complex circuit, which includes a pre-flotation section ...
Figure 2 - Floatability values P (dimensionless) of the Mount Isa copper rougher feed ore for twenty different size-by-liberation classes for chalcopyrite. impellers in a compartment was driven by ...
There are a few industrial flotation facilities for treatment of copper slag, such as: Magma Copper San Manual facility, USA, Altonorte Flotation Plant, Chile, Outokumpu facility, Finland, Mount Isa Mines, Australia, Aurubus, Bulgaria, Black Sea Copper Works, Samsun, Turkey and Copper Mine Bor, Serbia (Stanojlovic and Sokolovic, 2014).
Download scientific diagram | Copper flotation circuit at Mt Isa Mines (June 2000) from publication: Evaluation, modelling and simulation of the MIM flotation circuit to increase revenue | The ...
As part of the overall Copper Smelter expansion activities at Mount Isa Mines from 1970 - 1975, a decision was made to open circuit the converter slag from the Smelter and treat this product by flotation. This paper describes the technical aspects of plant operating and reagent practices employed, with particular emphasis on the large scale milling of this …
Often all, or a portion, of the cyanide addition is made to the mill ahead of flotation. Its presence can also affect the flotation of copper minerals. Grano et al. (1994) found in plant and laboratory studies at Mount Isa that chalcopyrite flotation was retarded by excess cyanide addition to the milling circuit. Data obtained from plant ...
The flotation tests were designed to evaluate the natural floatability of both chalcopyrite and pyrite, and as such, are similar to the pre-flotation circuit of the Mount Isa Mines Copper Operation [34,42]. …
The flotation behaviour of copper minerals in the Northparkes Mines copper-gold ore is dependent on grinding media (and hence grinding Eh) and aeration during conditioning. ... Influence of electrochemical environment on the flotation behaviour of Mount Isa copper and lead-zinc ores. International Journal of Mineral Processing …
Abstract. A compound with a UV absorption maximum at 348 nm was observed in Mount Isa copper flotation plant solution. This spectrum was similar to that of the product of reaction of xanthate and peroxide in dilute, alkaline aqueous solution. The compound was termed perxanthate (more correctly "O"-alkyl dithiomonoperoxycarbonate).
The installation of the Flotation Capacity Project flow sheet in the copper concentrator at Mount Isa Mines Limited has recently been completed. The project involved increasing the flotation capacity with Wemco tank cells and Jameson cells as well as changing the copper cleaner circuit layout. The engineering design and construction for the …
The Mount Isa Mines (MIM) copper concentrator at Mount Isa processes both chalcopyrite ore from the MIM underground mine and rotary holding furnace (RHF) slag from the MIM copper smelter. There have been numerous changes to the processing practices since commissioning this concentrator in 1973. Current management of the concentrator …
If you look at the case studies from Red Dog and Mt Isa and Century Mines, there were similar issues of high losses of valuable minerals in the pre-flotation concentrates. This is why the circuits were redesigned with a pre-flotation cleaning circuit with froth washing to minimise the losses of the valuable minerals and direct them back to the ...
A flotation model developed at the Julius Kruttschnitt Mineral Research Centre was used to predict the performance of copper rougher and scavenger circuits at the copper concentrator at Mount Isa Mines. The model describes the kinetic response of an ore in a flotation cell in terms of ore floatability, cell characteristics and froth …
The Mount Isa Copper Concentrator has operated two Jameson Cells in pre-flotation and slag cleaner duties, very successfully, for over 15 years. In 2015 we installed three 18 downcomer Jameson Cells to replace the cleaner circuit. We've seen significant improvements in operability and maintenance intensity translating to
Effect of residual reagents on chalcopyrite losses at Mount Isa Mines Copper Operation: part II- evaluation of flotation mechanisms. Minerals Engineering, 185 107687, 1 - 12 . doi: 10.1016/j.mineng.2022.107687
Mount Isa Mines Copper Operation (MICO), owned by Glencore, is one of the largest copper producers in Australia. The concentrator has a complex circuit, which includes a pre-flotation section designed for early removal of deleterious talc, and other naturally floating gangue including carbonaceous material. The downside of early talc removal is …
Copper recovery versus time––Mount Isa. ... Of interest is the downcomer residence time for copper slag flotation. This operation shows a residence time significantly below the others and also exhibits a dramatic decrease in downcomer residence time at an air to pulp ratio of 0.35. Slag flotation results in formation of a dry, …
Slag and ore are kept as separate as possible, since each has an adverse effect on the flotation performance of the other. Converter slag assaying 3.7 per cent Cu is produced by Mount Isa copper smelter at a rate of up to 180 000 tonnes per annum.Priority is given to the processing of ore, however concentrator capacity periodically exceeds that ...
environment on the flotation behavior of Mt Isa copper and lead-zinc. ore, International Journal of Mineral Processing, 30 (1990), …
Pyrrhotite shows low recovery without collector addition and copper activation [15]. The interaction between collector and pyrrhotite is the key to control mineral floatability, and this interaction can be enhanced by adding heavy metals to activate the mineral surface. Copper activation of sulphide mineral flotation has been extensively …
select article Investigating the System Flotation Kinetics of Fine Chalcopyrite in a REFLUX™ Flotation Cell using a Standardised Flotation Cell Reference Method. ... select article Effect of residual reagents on chalcopyrite losses at Mount Isa Mines copper Operation: Part II - evaluation of flotation mechanisms.
For example, Grano et al. reported that collectorless flotation recovery of chalcopyrite in preflotation in Mt Isa Copper started to increase when pulp potential was higher than − 100 mV (vs SHE). Single minerals were chosen for this study because the collectorless flotation is induced by surface oxidation and the reactions responsible for ...
