The principal sulphide ore minerals chalcopyrite (CuFeS 2), bornite (Cu 5 FeS 4) ... The first generic flowsheet, in which the mined ore is treated hydrometallurgically to produce copper cathode and cobalt hydroxide, is currently the most common configuration used for cobalt. It is used at Ruashi, Metalkol, Mutanda, Tenke Fungurumi …

complex sulphide ores have been presented by Konigsman (15) and Fahlstrom et al (16). The demonstration of the validity of computer modelling techniques to optimise circuits …

The ultra-fine gold particles associated with sulfide minerals are often too small to recover by gravity and very expensive to liberate by grinding. Typically, sulfide-associated gold is recovered by froth flotation. A typical sulfide-associated gold flowsheet is presented below in Figure 2: Figure 2: Typical sulfide-associated gold process

The flowsheet with the flotoclassification of the hydraulic classification sands allows extracting the ... The calculated data on final performance of sulfide copper ore flotation by the developed ...

Download scientific diagram | A typical flowsheet for processing refractory gold ore (Sulphidic Gold Ore). Numbers represent unit operations and sample points in red.

These consist of zinc and iron sulfide depressants which are added to the grind and a collector and frother for the lead-copper sulfides. The zinc is floated with additional quantities of a collector and frother …

Flowsheet of closed-circuit lab-scale tests of the studied sample. ... The results indicate that 43.37% Pb and 66.01% Ag were recovered by the flotation of lead sulfide ore, and the average grades of Pb, Zn and Ag in the Pb concentrate were 52.73%, 10.17% and 7562.37 g/t, respectively. Furthermore, total 84.42% Zn was recovered by …

Testwork was undertaken to develop a flowsheet that would maximise gold recovery from an ore containing 3 g/t Au and high levels of arsenic. Treatment of the sulphide ore …

For some low-grade nickel sulfide ore from lean ore regions, for example, a sulfide mine in Shaanxi, China, due to the grade of nickel sulfide raw ore generally between 0.3 and 3.0%, it is necessary to enrich the ore by mineral processing before smelting. Sulfide ores are crushed and ground in order to liberate nickel minerals by selective ...

The polymetallic sulfide ores of copper, lead, and zinc are usually processed via flotation, and the concentrates of these three metals and sulfur can be obtained. Valuable elements in the ore are recovered by enriching the concentrate products and can be further recovered via smelting[2-4]. In general, the copper sulfide content of minerals is ...

Copper extraction from primary copper sulfide ore from a typical porphyry copper deposit from Antofagasta, Chile, was investigated after leaching with a chloride-ferrous media at two temperatures. ... Flowsheet CONCLUSION AND RECOMMENDATION RESULTS AND DISCUSSION We conclude that the roasted ore has certain amount of copper that can …

A variety of ores and commodities exists, and the flotation flowsheet and operating conditions vary significantly between ore systems, but every process relies on …

In 1994, WMC Resources Ltd. commenced mining of low grade, nickel sulphide ore from its Mt Keith deposit using large scale mining and processing methods. The operation currently treats over 11 Mt.p.a. of ore, typically assaying 0.58% Ni. ... Fig. 8 shows a schematic of the flowsheet that was selected. By comparison with the original …

A Flowsheet to recovery gold from sulfide ores. There are many arrangements and combinations using flotation in conjunction with …

Production of Ni/Co from sulphide ores has its challenges that are fundamentally related to the mineralogy of this type of ores. 2.1 Mineralogy of Nickel-Copper Sulphide Ores. Studies on the geology and mineralogy of domestic nickel-copper sulphide ore deposits are reported in several sources in detail [16,17,18,19]. Although over 20 …

This problem can be overcome by using depressants like car-boxymethylcellulose (CMC) and guargum deriva-. Table 2 Distribution of Ni and S in sulfide ores. copyrite. Figure 3 shows that 93% of chalcopyrite can be recovered in 12 min in the presence of SO2, but the co-recovery of 12% pentlandite and 23%. Ore source.

The results of the mass titration of dry and wet ground Syväjärvi spodumene ore are shown in Fig. 22 and similarly the results from the Pyhäsalmi sulphide ore mass titrations are shown in Fig. 23.

The ore contains 1.1% sulfide sulfur, 1.1% organic carbon and 2.9% carbonate carbon on average. The limestone introduced to the process with the ore reacts with the SO2 forming gypsum. At a reactor temperature between 680° C and 720° C, SO2 concentrations of about 100 vppm were measured in the off-gas.

Abstract. The flotation testing of sulphide ores for flowsheet development, or for the improvement of existing flowsheets in operations, has been practiced for a …

Through appropriate use of Gy's sampling and subsampling models, and systematic flowsheet development using modern Process Mineralogy, an optimised Milestone Flowsheet was developed, delivering a final concentrate grade of 32.8% Cu at 85.4% recovery with hypogene ore, and 45.1% Cu grade at a recovery of 83.4% for …

A Flowsheet to recovery gold from sulfide ores. There are many arrangements and combinations using flotation in conjunction with treatment of gold ores. The two gold process flowsheets shown, with …

The technology race for test plants with flexible systems/ unit operations appears to be rational for any flow-sheet testing, development and/or optimization. ...

At the 75 lm primary grind, Cu sulphide liberation was reported at 62.5% for the hypogene ore and 53.1% for the supergene ore (Lotter et al., 2013). A mixed reagent suite was selected and refined ...

The recovery of silver minerals occurring in a lead-zinc sulfide ore is efficiently accomplished using the above flowsheet. The process consists of selective flotation to produce a mixed silver-lead concentrate for maximum smelter return and a separate zinc concentrate. Over-grinding of silver minerals is detrimental to efficient …

Locations of non-sulfide zinc ore deposits in the world (Coppola, 2007). The recent development of new hydrometallurgical processes (leaching, solvent extraction, ... Flowsheet development and the associated metallurgical test work to drive an economically viable treatment route from non-sulfide zinc deposits are discussed by some authors.

A smelting workaround. The traditional route for extracting copper from sulfide ores is smelting. Yet there is a growing case for leaching sulfides from lower grade ore bodies and especially for those …

Clarabelle Mill in Sudbury, Canada, a complex sulfide ore is treated to recover bulk concentrates of copper and nickel minerals. The plant treats an ore containing Cp (~4%), Pn (~4%) and Po (~20%).

A schematic of the proposed flowsheet is depicted in Figure 1. which inhibits the separation of minerals ... low-grade nickel sulfide ore with high-alkaline gangue has replaced high-grade nickel ...

The Macraes case study is an example of flowsheet development through continuous improvement by evaluation, trialing and the use of a number of processes to address both the preg-robbing and refractory sulfide fractions of the ore. 2. Sansu Project, Ashanti Goldfields Corporation (Ghana)

The conventional flowsheet using open circuit rod milling . 161 followed by two stages of ball milling in closed circuit with ... major mineralogical constituents of a complex sulphide ore is flotation. This process in particular enables achievement of a clean separation with respect to the non-valuable sulphide, pyrite. A review of recent ...

Nickel sulfide ores are broadly classified into the following categories: massive sulfide ore, matrix ore (also termed net-textured ore) and disseminated sulfide …