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Grade-recovery curve for chalcopyrite-flotation tests .••..••..•.•••• Large-scale demonstration plant in operation at Magmont mill ••••••.• Effect of nickel concentration in feed to POU on …
The results showed that an optimized cobalt–sulfur concentrate with a cobalt grade of 2.08%, sulfur content of 36.12%, sulfur recovery of 85.79%, and cobalt recovery and 84.77% were obtained by flotation process of one roughing, three sweeping, and three cleaning under roughing conditions, which employed pulp pH of 8, grinding fineness of …
processes of grinding, conditioning, and flotation were studied individually and in con cert, and a series of continuous tests were run based on the parameters developed to obtain …
Abstract: In this study, recovery of cobalt from a copper flotation tailing (pyrite concentrate) by oxidative acid leaching was investigated. The as-received tailings (d80: 64 μm) contained 6407 ...
Results from lab scale flotation show that when process water was re-used copper and cobalt recovery from an oxidized ore decreased respectively with 25% and 30% at the rougher stage bringing lower grade concentrate as well. The presence of thiosulphate ions contributed to slow down of NaHS consumption during sulphidisation of …
With decreasing ore grades, the tailings of mining operations are becoming of increasing interest as metal-containing secondary raw materials. The objective of the current work was to investigate chloride leaching of gold, copper, cobalt, nickel, and zinc present in the flotation tailings. In the current study, the effect of cupric ion as an oxidant (0–50 …
Advanced Solutions for Mineral Processing. Used extensively for the flotation of sulfide minerals, Solvay's flotation mining reagents are well-suited for the recovery of precious and base metals, such as gold, silver, platinum group metals, nickel, cobalt, lithium, molybdenum, phosphate, polymetallics, and copper.
Fig. 1, Fig. 2 present the effect of water types used on copper and cobalt grade-recovery curves obtained after 30 min flotation. Download : Download full-size image; Fig. 1. Grade-recovery curves for copper as function of water type (rougher flotation – five fractions skimmed at 6 min interval). Download : Download full-size …
The recovery of cobalt by flotation is typically poor, usually below 60%, and in many instances it is well below this value. The sulphide and oxide flotation circuit at Konkola Copper Mines (KCM) is shown in Fig. 10. The plant is a two-stage circuit, consisting of a sulphide flotation section and an oxide flotation section.
Cobalt recovery by flotation is typically poor, generally below 60%, and in many cases well below this value. For cobalt associated with sulfides, the flotation …
The authors would like to thank the management and staff of Cominco American, Inc., and Dresser Industries, Inc., Magmont operation, and especially the mill and maintenance personnel for their assistance in the set up and operation of research equipment at the mill.
The sulfur-oxygen mixed flotation process is an efficient cobalt ore dressing technology for the efficient recovery and utilization of low-cobalt resources. And it has great potential for ...
For enhanced flotation recovery of cobalt, thus the subsequent flotation test was performed based on the precipitation test conditions with a molar ratio of 3:1, a pH of 2.0, and a temperature of 65°C. Under this condition, the R p of Co 2+, Cu 2+, and Zn 2+ are 98.40%, 38.35%, and 15.13%, respectively.
Poor recovery of cobalt to the matte phase during smelting and converting, where typically 30–50% of cobalt is lost to the metallurgical slag (Matousek Citation 1982; Warner et al. Citation 2007), High capital cost associated with concentrate smelting and matte converting, including the capture of SO 2 and its conversion to sulfuric acid.
G.V. Rao, in Reference Module in Chemistry, Molecular Sciences and Chemical Engineering, 2014 Sulphidisation – Flotation of Oxide Copper-Cobalt Ores. Since cobalt is mostly recovered as by product, a typical case of cobalt recovery from oxide copper-cobalt ore from Kamwale deposit, located in Congo is highlighted.Generally such oxide copper …
For enhanced flotation recovery of cobalt, thus the subsequent flotation test was performed based on the precipitation test conditions with a molar ratio of 3:1, a pH …
Driven by the ever-increasing demand for cobalt, its recovery from secondary resources has gained particular attention. The recovery of cobalt and base metals (Cu, Zn) from a …
Cobalt Recovery Process. Cobalt is extracted as a byproduct from copper and nickel mining. [4] ... In other processes, the mined ore is agitated to separate the minerals in a process called separation flotation. The concentrates can be sold as is or split into two other paths. The concentrate can be roasted to calcine, followed by the same ...
Abstract: In this study, recovery of cobalt from a copper flotation tailing (pyrite concentrate) by oxidative acid leaching was investigated. The as-received tailings (d80: 64 μm) contained 6407 ...
DETA, does not affect the recovery of chal-copyrite. Figure 3 shows that 93% of chalcopyrite can be recovered in 12 min in the presence of SO 2, but the co-recovery of …
Driven by the ever-increasing demand for cobalt, its recovery from secondary resources has gained particular attention. The recovery of cobalt and base metals (Cu, Zn) from a cobaltiferrous pyrite flotation concentrate that contains 6407 g/t Co, 3548 g/t Cu and 1705 g/t Zn by leaching in H 2 SO 4-NaNO 3 solutions were
The desirable area of operation is clearly somewhere in the region where the recovery of cobalt is high, and the recovery of iron to the alloy is still reasonably low. The interchange between Co and Fe can be seen by studying the liquid-liquid reaction between the oxides in the slag and the metals in the alloy: CoO + Fe = Co + FeO (1) A ...
Best case scenario shows that over 80% cobalt recovery can be obtained by producing a pyrite concentrate with 3500 ppm cobalt. Left: Expected growth (2050 vs 2017) for various elements. Right ...
Cobalt reported to the nickel concentrate with a recovery of 62.5% and a grade of 0.66%. Platinum group metals (PGM ) and silver recovered to both concentrates also may provide potential added value