Northisle Copper and Gold Inc. is a Vancouver-based company whose mission is to become Canada's leading sustainable mineral resource company for the future. Northisle, through its owned subsidiary North Island Mining Corp., owns the North Island Project, which is one of the most promising copper and gold porphyry …

Flotation is the conventional method for processing porphyry copper deposits, one of the most economically important sources of copper (Cu) worldwide. The rapidly decreasing grade of this type of Cu ore in recent years, however, presents serious problems with fine particle recovery using conventional flotation circuits. This low …

Porphyry-type deposits are the major sources of copper and molybdenum, and flotation has been adopted to recover them separately. The conventional reagents used for depressing copper minerals ...

Although basic porphyry copper flotation and metallurgy has remained virtually the same for many years, the processing equipment as well as design of the

To recover copper and molybdenum from their porphyry sulfide ores, several process flowsheets are applied, and two of them are shown in Fig. 1.[23, 24] As illustrated in Fig. 1 (a), [23, 25] the two-stage flotation flowsheet is the most widely adopted.In the first stage, copper and molybdenum sulfide concentrates are recovered …

The dominant challenge of current copper beneficiation plants is the low recoverability of oxide copper-bearing minerals associated with sulfide type ones. Furthermore, applying commonly used …

Fig. 1b has also been adopted by Dexing copper mine. While in the rougher flotation step, a selective collector thionocarbamate is used for preconcentration of copper and molybdenum from porphyry copper ores, which can reduce the influence of lime on the floatability of molybdenite and obtain relatively high overall recovery of molybdenite.

The Sarcheshmeh copper mine is a significant copper and molybdenum producer. Sampling of the Sarcheshmeh flotation circuit (in a six-month period) showed that a large share of waste of molybdenite ...

Conversely, the former flotation circuit was optimal concerning the recovery of copper sulphides favoured by the less restrictive high copper content of these sulphides. Consistently, it is argued for the study case that the main advances in flotation circuits have focused on improving selectivity without sacing recovery, due to the ...

It will be an open-pit mine developed on the oxide zone overlaying the El Pilar porphyry copper deposit in central Cuba. ... is expected to supply the crushing and flotation circuits for the Nueva ...

1. Introduction. Porphyry copper deposits are the world's main source of copper, molybdenum, and rhenium. They are also a significant source of gold, silver, tin, and a range of by-product metals (British geological survey, 2007).In many porphyry copper ores, various aluminosilicate minerals are present, such as kaolinite, chlorite, …

This study examined the performance of the CIL (Carbon-in-Leach) circuit at Telfer, a copper–gold plant treating porphyry copper deposits containing gold associated with both copper and iron sulphides, with an objective to identify factors normally limiting the gold recovery in the CIL circuit in the presence of a small amount of copper after …

Photograph of the tailings storage facility for the Sierrita copper porphyry mine in Arizona..... 11 Tables 1. Engineering and operational parameters for a conventional …

28 million t of porphyry copper ore per year, where the initial content of copper in the ores is 0.4%. The rougher flotation feed is the tertiary grinding overflow of 80% passing –65 …

A split-circuit was proposed for a porphyry copper-gold ore from Indonesia, to deal with some of these problems (Figure 12). ... btained with this circuit and the conventional circuit. Flotation Fiaed Pdmary mugher Bulk roii !!!III Bulk scavenger Regririd I st. cleiner leaner scavenger l~2nd cleaner 3rd cleamr Combined Tailing Cu-Au cleaner ...

A Copper Flotation Flowsheet. Because the copper in this type of ore usually assays only plus or minus 1% copper, the porphyry copper operations must be relatively large in order to be commercial. The flowsheet in this study illustrates a typical …

To overcome this obstacle and improve overall performance, an innovative approach for flotation circuit evaluation was designed and set up, to improve understanding of the nature of the mineral losses, benchmark the cell hydrodynamics as a platform to improve flotation cell operation, and link the circuit setup and operation to …

Numerous flotation models have been proposed in the literature. Thirteen of these have been applied to batch flotation data and evaluated with respect to one another using statistical techniques.Flotation tests were carried out on samples of a US porphyry copper ore (Pinto Valley, AZ). The ore was tested using various collector and frother …

The Sarcheshmeh copper mine is a significant copper and molybdenum producer. Sampling of the Sarcheshmeh flotation circuit (in a six-month period) showed that a large share of waste of molybdenite took place in rougher cells. Since the rougher cells tailing is transferred to tailing thickener, the main focus of this paper was on this …

The copper circuit usually consists of several regrinding stages to produce a clean copper-moly concentrate. If fine molybdenite particles exhibited poor floatability then the recovery of molybdenite in the flotation steps ensuing the regrinding stages may be affected. ... respectively. The porphyry copper ore used in the flotation experiments ...

A large porphyry copper flotation plant has been simulated using a flotation model developed from first principles using the hydrophobic force as a kinetic parameter (Huang et al., 2022, Gupta et al., 2022).The input to the simulation was the size-by-class liberation matrix (m ij) of a flotation feed, which was essential for predicting the …

As the major mineral reserve for molybdenum, molybdenite (MoS2) is commonly found in porphyry copper deposits. Molybdenite is naturally floatable and can be separated from copper sulfide mineral ...

Technological flowsheets for porphyry copper ores are simple. A typical flowsheet is shown in Fig. 1 [5]. ... The obtained results could be used to develop a flotation circuit for recovering ...

A copper–molybdenum iso-flotability flotation process has been developed to efficiently improve the recovery of molybdenite from Duobaoshan porphyry Cu–Mo ores. The effects of flotation approach, type of collector, feed particle size distribution, rougher pH value and reagent dosage on the recovery of molybdenite were evaluated …

Sarcheshmeh is a major porphyry copper deposit located in Kerman Province in the southeastern part of Iran. Geologically, it is divided into three zones: oxide, supergene, and hypogene (National Iranian copper industries company, 1977). ... The reagents used in the flotation circuit are the collectors of Nascol 1451 ...

An investigation of the factors affecting the recovery of molybdenite in the Kennecott Utah Copper bulk flotation circuit. Author links open overlay panel B. Triffett, C. Veloo, B.J.I ... Effect of clay slimes on copper, molybdenum flotation from porphyry ores. In: Proc. Copper 99, vol. II, pp. 95–111. Google Scholar. Chander and …

The froth half-life was measured in-situ of the flotation cells by means of a modified froth stability column (Fig. 1).This has the same general design as the column of Barbian et al. (2005), but it is also equipped with a bottom valve, which is closed when the equilibrium froth height is reached in the column, shutting off the gas flow and allowing …

Open vs. closed circuit configurations for the flotation of low-grade porphyry copper ores, SME virtual event, March 1–5. Google Scholar. Meloy, 1983. T.P. Meloy. Analysis and optimization of mineral processing and coal-cleaning circuits − circuit analysis ... Optimizing flotation circuit recovery by effective stage arrangements: A …

Porphyry-type deposits are the major sources of copper and molybdenum, and flotation has been adopted to recover them separately. The conventional reagents used for depressing copper minerals ...

Figure 1 shows an example of the most common porphyry copper ore type beneficiation flowsheet. Porphyry ores, although generally contain small amount of copper below 1%, belong to easy-to-float ...