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 ...

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 …

The flotation of nickel sulfide ore having serpentine and talc as the main gangue minerals, is severely affected by features such as, containment and sliming. If the MgO content is greater than a certain percentage (typically 6.8%), the melting point and viscosity of the slag increases, thus resulting in higher operating temperatures, and ...

The Direct Leaching of Nickel Sulfide Flotation Concentrates - A Historic and State-of-the-Art Review Part III: Laboratory Investigations into Atmospheric Leach Processes Faris, …

The majority of the published studies on atmospheric leaching of nickel sulfide flotation concentrates have focused on leaching in chloride media due to the …

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

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.

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) …

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 …

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.

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 …

Nickel sulfide deposits contain high levels of magnesium silicate gangue minerals (MgO) and can be difficult to process with conventional flotation and smelting technologies. MgO is hydrophilic, which interferes with flotation of sulfide minerals, and reduces flotation recovery. In China, the Jinchuan Group Go. Ltd has 400 Mt of low …

Abstract. Nickel sulphide ores containing pentlandite, pyrrhotite and talc have traditionally been treated by bulk sulphide flotation, an approach which seeks to …

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 ...

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 ...

To see the effect of closed water circulation on metallurgical performance, flotation tests were carried out with nickel concentrate thickener overflow water before and after the process of water purification by dissolved air flotation (DAF). Both total nickel recovery and concentrate grade in laboratory scale flotation tests to the Ni rougher ...

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 ...

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 …

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 pentlandite or more.

After flotation processing, the content of (Pt + Pd) is increased from 1.45 g/t (crude) to 86 g/t (flotation sulfide concentrates), and the content of (Cu + Ni) is increased to 6–7% (Liu and Li, 2002). The traditional pyro-metallurgical process is not suitable for treating the as-is flotation concentrates due to the technical difficulties and ...

The extraction of nickel (Ni) from sulfide resources commences with flotation to produce a concentrate which is then smelted to produce a nickel-enriched …

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 ...

As expected, of the nickel recovery in the flotation concentrate reported to the Standard Concentrate product because pentlandite was the primary nickel sulfide mineral in this sample.

Tel: +86-516-83995976; E-mail address: [email protected] Process mineralogy of copper-nickel sulphide flotation by a cyclonic-static micro-bubble flotation column CAO Yi-jun 1, GUI Xia-hui 1, MA Zi-long 1, YU Xiao-xia 2, CHEN Xiao-dong 2, ZHANG Xiu-pin 2 1 School of Chemical Engineering and Technology, China …

Key words: cyclonic flotation column, floatability, flotation, nickel sulfide ore Introduction A conventional flotation column is a reactor mainly composed of collection and froth zones. The collection zone has the objective of attaching hydrophobic particles to bubbles, while the froth zone is responsible for the carrying capacity and froth ...

ABSTRACT The extraction of nickel (Ni) from sulfide resources commences with flotation to produce a concentrate which is then smelted to produce a nickel …

Flotation practice differs by geographical location. Bulk sulfide flotation is generally carried out on Western Australian nickel ores which tend to be low in copper and contain substantial ...

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 …

The flotation of nickel sulphide minerals is normally difficult in the presence of serpentine minerals due to the coating of serpentine particles on the nickel mineral surface. To improve the ...

The rougher flotation and closed-circuit flotation tests of copper-nickel sulfide ore (1.0 kg) were performed on XFD-63 type flotation machines of different capacities (3.0 L, 1.0 L, obtained from Wuhan Exploration Machinery Co., Ltd.) [5], with mechanically stirring speed of 1610 rpm.The 3.0 L cell was used for rougher and scavenger stages, and the 1.0 L …