The selective flotation of pentlandite from a nickel ore
Abstract. Nickel sulphide ores containing pentlandite, pyrrhotite and talc have traditionally been treated by bulk sulphide flotation, an approach which seeks to maximise nickel recovery and talc rejection but which does not reject pyrrhotite. Concentrates have therefore been of moderate grade containing as much pyrrhotite as …
Comprehensive Review on Metallurgical Upgradation Processes of Nickel
With the vigorously growing demand of the steel industry, corrosion resistance alloys, clean energy industries, and a variety of engineered infrastructure or technology, high-grade nickel ores are being exhausted gradually in the world. This review outlines metallurgical processes for nickel production from various nickel sulfide ores resources, particularly …
(PDF) The Direct Leaching of Nickel Sulfide Flotation …
The extraction of nickel (Ni) from sulfide resources commences with flotation to produce a concentrate which is then smelted to produce a nickel-enriched …
Selective extraction of nickel and cobalt from disseminated sulfide …
A secondary cleaner flotation tailing sample containing Ni and Co obtained from a nickel flotation plant (Western Australia) was used in this study. The nickel is predominantly mineralised as pentlandite in a disseminated texture in an ultramafic ore. The elemental assay of the samples is shown in Table 1. It indicates the sample contained …
Effect of high intensity conditioning on flotation of nickel sulfide
Hydrophobic flocculation of sulphide minerals is the main reason that high intensity conditioning improves the flotation recovery of low-grade sulfide ore. Discover the world's research 25 ...
Effect of a novel phosphate on the flotation of serpentine …
The low-grade copper-nickel sulfide ore for flotation tests was from Yanbian Mine, Sichuan Province, China. The main compositions of the ore were 0.45% Cu, 0.63% Ni, 28.96% MgO and 33.12% SiO 2. The main sulfide minerals were pentlandite, chalcopyrite, and pyrrhotite. The main gangue minerals were serpentine, pyroxene, …
Development and implementation of a new flowsheet for the flotation …
The process exploits the particle size dependence of nickel sulphide flotation and the different ways that pH change and pulp density influence the response of coarse and fine particles. Implementation of the new process at Mt Keith has raised nickel recovery by 10%. In turn, nickel production has increased by over 6000 t.p.a. and the …
Lime use and functionality in sulphide mineral flotation: A …
Sulphide ores are the major source of valuable metals such as copper, lead, zinc, and nickel, as well as gold, silver, and platinum group metals (PGMs), and flotation is the dominant industrial process to recover these metals via the production of …
The Direct Leaching of Nickel Sulfide Flotation …
ABSTRACT The extraction of nickel (Ni) from sulfide resources commences with flotation to produce a concentrate which is then smelted to produce a nickel …
Copper Nickel Flotation
The Bureau of Mines investigated the flotation responses of two copper nickel ore samples from the Duluth Complex with the objective of recovering bulk sulfide concentrates. One of the ores studied was taken from a test pit; the other was taken from a test shaft. The samples were quite similar except that the pit sample analyzed 0.35 pct …
(PDF) The Direct Leaching of Nickel Sulfide Flotation …
The extraction of nickel (Ni) from sulfide resources commences with flotation to produce a concentrate which is then smelted to produce a nickel-enriched phase called matte, and further refined to ...
Full article: The Direct Leaching of Nickel Sulfide …
The majority of the published studies on atmospheric leaching of nickel sulfide flotation concentrates have focused on leaching in chloride media due to the …
Nickel processing
From sulfide ores. Sulfide ores are crushed and ground in order to liberate nickel minerals from the waste materials by selective flotation. In this process, the ore is mixed with special reagents and agitated by mechanical and pneumatic devices that produce air bubbles. As these rise through the mixture, the sulfide particles adhere to their ...
The Critical Role of Pulp Density on Flotation …
The rheology and flotation of nickel-copper sulfide ore and serpe ntine was investigated on a laboratory scale. The effect of density on rheological p arameters including shear yield stress ...
FROTH FLOTATION : RECENT TRENDS Flotation of …
History of Sulphide ore flotation dates back to beginning of 20th century. Sulphide ores are major sources of base metals like Copper, Lead, Zinc, Nickel, Cobalt etc. Beneficiation of these base metal sulphide minerals is predominating through froth flotation technique. This technology has acclaimed importance as a versatile process for
Recovery of copper, nickel and cobalt from acidic pressure …
Recovery of copper, nickel and cobalt from the acidic pressure leaching solutions of Jinbaoshan (YN Province, PRC) low-grade sulfide flotation concentrates was investigated. The proposed technique includes four major steps: (1) the acidity adjustment of the acidic pressure leaching solutions; (2) solvent extraction (SX) …
Challenges in processing nickel laterite ores by flotation
It should be added that segregation of laterite ores prior the flotation process has shown some improvement in upgrading nickel. The segregation process relies on the addition of calcium chloride or sodium chloride and carbon allowing the formation of nickel and iron chlorides at temperatures between 900 and 1150 °C. Iwasaki et al., (1961) and …
[PDF] Flotation behavior of nickel sulfide ore in a cyclonic flotation …
This study aimed to show the flotation behavior of a nickel sulfide ore in a cyclonic flotation column. The flotation experiments were carried out using a sample of nickel sulfide ore obtained from a mineral processing plant of China. Representative samples collected from the feed, concentrate, tailing, and circulation middling were …
Selective extraction of nickel and cobalt from …
Selective extraction of nickel and cobalt from disseminated sulfide flotation cleaner tailings using alkaline glycine-ammonia leaching solutions - ScienceDirect. …
Full article: The Direct Leaching of Nickel Sulfide …
The extraction of nickel from sulfide ores typically commences with comminution and flotation to produce a sulfide concentrate, which is subsequently …
The Direct Leaching of Nickel Sulfide Flotation …
ABSTRACT The following review is the second part of a series concerned with the direct hydrometallurgical processing of nickel sulfide flotation concentrates. In the first part of this series, piloted leaching processes and commercial nickel sulfide operations which employed direct hydrometallurgical processing were comprehensively reviewed. In …
The effect of crystallochemical peculiarities of nickel sulphide
The flotation kinetics of principal ore minerals is shown in Fig. 2.As is evident, the principal ore minerals—pentlandite and chalcopyrite—are characterized by greater floatability than the others and, owing to this, practically all the opened grains and rich aggregates of these minerals pass to the concentrate of between-bath flotation.
Flotation of nickel-copper sulphide ore
The Taguchi method was therefore, selected to determine the optimum conditions for maximising the flotation recovery of Ni, Cu and Co from a nickel-copper sulphide ore. The effect on flotation performance of various parameters such as pH, collector dosage, % solids and depressant dosage at different levels was investigated. Therefore, the main ...
Selective sulphidation and flotation of nickel from a nickeliferous
The sulphidation of a nickeliferous lateritic ore was studied at temperatures between 450 and 1100 °C and for sulphur additions of 25–1000 kg of sulphur per tonne of ore. The experiments demonstrated that the nickel could be selectively sulphidized to form a nickel–iron sulphide. It was found that both the grade and the sulphidation degree ...
Full article: The Direct Leaching of Nickel Sulfide …
The extraction of nickel (Ni) from sulfide resources commences with flotation to produce a concentrate which is then smelted to produce a nickel-enriched phase called matte, and further refined to produce pure Ni products as well as by …
The Direct Leaching of Nickel Sulfide Flotation …
ABSTRACT The extraction of nickel (Ni) from sulfide resources commences with flotation to produce a concentrate which is then smelted to produce a nickel-enriched phase called matte, and further refined to produce pure Ni products as well as by-products, such as cobalt (Co), copper (Cu) and precious metals. However, the …
Process flowsheet development for beneficiation of nickel …
The flotation characteristics of a nickel sulphide transition ore are investigated by laboratory tests with regard to two aspects, the recovery of magnesia bearing gangue, and the depression of ...
The Direct Leaching of Nickel Sulfide Flotation …
nickeliferous sulfide flotation concentrates were criti-cally reviewed and summarized. The purpose of Part III of this series is to critically review and summarize research activities relating to the direct hydrometallur-gical processing of nickel sulfide flotation concentrates at ambient pressure.
(PDF) The flotation of gersdorffite in sulphide nickel systems …
In the nickel sulphide ores of Western Australia, gersdorffite (NiAsS) is usually the major arsenicbearing mineral. Few reports exist in the literature on the flotability of nickel arsenide minerals in general (Nakazawa and Iwasaki, 1986a,b; Iwasaki et al., 1986; Iwasaki et al., 1988; Qun and Heiskanen, 1990), and even fewer deal ...
Flotation of Nickel-Copper Sulphide Ore: Optimisation of …
optimum conditions for the flotation of nickel, copper and cobalt from a nickel-copper sulphide ore. The parameters investigated include collector dosage, percentage solids, …