flotation of ni-sulphides

Leaching of Copper Sulphides - SAIMM

Leaching of Copper Sulphides Marc Nicolle,1 Marko Lampi,2 Kari Valkama, 2 and Janne Karonen 1 Outotec (RSA) (Pty) Ltd, Johannesburg, South Africa. ... The leach residue is subjected to flotation to recover pyrite and elemental sulphur which is subsequently fed to an oxidising autoclave. Within the autoclave, the elemental sulphur and ...

Violarite - Wikipedia

Violarite (Fe 2+ Ni 2 3+ S 4) is a supergene sulfide mineral associated with the weathering and oxidation of primary pentlandite nickel sulfide ore minerals.. Violarite crystallises in the isometric system, with a hardness of 4.5 to 5.5 and a specific gravity of about 4, is dark violet grey to copper-red, often with verdigris and patina from associated copper and arsenic sulfides, and is ...

Flotation Of Ni Sulphides - teachenglish.nl

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 objective of the study was to optimize the process parameters for the flotation of

I. PRINCIPLES OF EXTRACTIVE METALLURGY

mixture of sulphides) smelting, which exploits the immiscibility between slag and matte, is used for metal extraction from sulphide ores. (Slide 9-14) The word hydro- is derived from a Greek word which means water. Separation steps involved in hydrometallurgy are: leaching, purification and/or concentration, and precipitation/metal production.

(PDF) The flotation of gersdorffite in sulphide nickel ...

The flotation of gersdorffite in sulphide nickel systems--A single mineral study. International Journal of …, 2009. Ewen Silvester. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 37 Full PDFs related to this paper. Read Paper.

Flotation collectors optimized performance

Flotation of sulfide Flotation of sulfide ores has been done with Xanthates, dithiocarbamates and dithiophosphates since the early 20th entury. Tecflote™, developed and launched by Nouryon, is a novel proprietary range of nitrile based sulfide ore collectors. Novel chemistry Tecflote is designed for flotation of sulfide

floatation of copper sulphide ore

Flotation of Nickel-Copper Sulphide Ore: 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.

Optimisation of Reagent Addition during Flotation of a ...

addition on flotation performance of a nickel sulphide ore. The objectives of the study were to: 1. develop an understanding of the effects of collector and depressant dosage, and its interactive effects, on flotation performance and 2. determine the effect of stage dosing collector and depressant on flotation …

Flotation Guidebook

6.1 Iron Sulphide Gold Ores 22 6.2 Copper Ores 22 6.3 Low Grade Copper-Gold Ores 23 6.4 Lead-Zinc Ores 24 6.5 Copper-Zinc Ores 24 6.6 Copper-Lead-Zinc Ores 25 6.7 Nickel Ores 26 Planning and Analysis of Flotation Reagent Plant Trials Using the Paired t-test 27 Xanthate Determination Procedures 33

An Overview of Calcite Recovery by Flotation | SpringerLink

Sep 23, 2020· The flotation of sulphides and quartz from calcite is possible while using an amine collector at neutral or mildly alkaline pH values where the amines are present in mono and doubly charged ions. Optimum results were also observed above pH 10, where the neutral amine molecules are in colloidal precipitate form interacting with the sulphides ...

Differential Flotation of Chalcopyrite, Pentlandite and ...

Jul 18, 2013· A new method for the treatment of Ni–Cu sulphides ores from the Sudbury region by differential flotation is presented. The method exploits the ease of chalcopyrite floatability in complete or virtual absence of collector, but in the presence of sulphur dioxide, an effectivecomplexing agent such as diethylenetriamine (DETA) and a frother.

Mineralogy of Sulfides | Elements | GeoScienceWorld

In addition to the sulfides mentioned above, pentlandite [(Fe,Ni) 9 S 8] and its alteration product, violarite (FeNi 2 S 4), are important as the major ore minerals of nickel; bornite (Cu 5 FeS 4) and chalcocite (Cu 2 S) as major copper minerals; and molybdenite (MoS 2) is the primary source of molybdenum.

A review of the physicochemical properties and flotation ...

Dec 05, 2017· The Canadian Journal of Chemical Engineering, published by Wiley on behalf of The Canadian Society for Chemical Engineering, is the forum for publication of high quality original research articles, new theoretical interpretation or experimental findings and critical reviews in the science or industrial practice of chemical and biochemical processes.

Acid leaching of oxide–sulfide copper ore prior the ...

453 Acid leaching of oxide–sulfide copper ore prior the flotation – A way for an increased metal recovery Miroslav D. Sokić1, Vladan D. Milošević1, Velizar D. Stanković2, Vladislav Lj.Matković1, Branislav R. Marković1 1Institute for Technology of Nuclear and Other Mineral Raw Materials, Belgrade, Serbia 2University of Belgrade, Technical Faculty, Bor, Serbia

US5411148A - Selective flotation process for separation of ...

This invention provides a process for improved separation of mono/multi-metallic sulphide minerals from significant amounts of iron sulphides, mainly pyrrhotite and/or their finely divided process middlings. The process comprises subjecting such material to a conditioning stage with at least one water-soluble sulphur-containing inorganic compound as a prerequisite step for further conditioning ...

v115n8a4 Effects on entrainment of serpentines by ...

disseminated Cu-Ni ores bearing high serpentine contents. This is the case for the copper and nickel sulphides from the Yunnan Mine, China. Previous batch flotation tests of this ore resulted in satisfactory recoveries of 86.92% Cu, 54.92% Ni, and 74.73% Pt+Pd, and concentrate grades of 4.02% Cu, 3.24% Ni, and 76.61 g/t Pt+Pd. However, the MgO ...

Nickel: smelting, producing-Metalpedia

The principle nickel sulphide is pentlandite (NiFeS2), which is usually associated with chalcopyrite and iron sulphides. International Nickel (INCO) and Sherritt Gordon use a bulk Cu/Ni float pictured below, followed by selective flotation of the two elements into separate concentrates. Other Canadian producers leave separation to the smelters.

(PDF) Flotation of Nickel-Copper Sulphide Ore ...

Aug 11, 2014· the flotation recovery of Ni, Cu and Co from a nick el-copper sulphide ore. The effect on flotation performance of various parameters such as pH, …

Selective sulphidation and flotation of nickel from a ...

Dec 01, 2013· Flotation studies conducted on 60 g samples showed that the sulphides responded to flotation with maximum grades of up to 6–7 wt.% nickel being achieved. Recoveries were approximately 50% on a sulphide basis and it was determined that the …

Effects of pH and pulp potential on selective separation ...

selective molybdenite flotation by Na 2 S/NaSH addition, because Na 2 S/NaSH acts as a depressant for copper sulfide in the appropriate pulp potential [7]. It was found that changes in pulp potential as an effective factor resulted in dual effects of Na 2 S and NaSH on flotation and depression behavior of sulphide minerals.

Selective flotation process for separation of sulphide ...

We claim: 1. A process for the concentration of at least one mono- or multi-metal sulphide mineral containing non-ferrous metal co-existing with pyrrhotite in a sulphide ore or its processed streams, the streams consisting essentially of middlings resulting from previous unit operations; the process comprising subjecting the ore or the streams to froth flotation employing at least one ...

The effect of flotation desulfurization on the trace ...

Jun 01, 2021· At the second stage, the flotation process proceeded for 4 min using 8.8 g/t Z6, 5 g/t Z11, and 6.3 g/t F7240, and collected concentrate at increasing time intervals as same as the previous stage. The final stage of the flotation experiments was run for 10 min using 10 g/t NF and 0.022 g/t MIBC, where the sulfide-lean tailings were sampled.

Nickel Sulfide Versus Laterite : The Hard Sustainability ...

Billiton Ltd (BHPB), who operated three major Ni sulfide mines at Mt Keith, Leinster and Kambalda as well as the Kalgoorlie Ni smelter in central Western Australia and Kwinana Ni refinery south of Perth. A range of smaller Ni sulfide mines in WA have also entered the sector since the mid-1990's.

IMX Resources Reports Positive Flotation Results for ...

Sep 26, 2012· IMX Resources Limited - Highlights Head grade of disseminated mineralisation test samples averaged 0.32% Ni and 0.07% Cu...

nickel sulphide flotation from serpentine

WO2013120689A1 - Mineral ore flotation using carboxymethyl ...

A flotation method for mineral processing is disclosed. The method for floating comprises a first step comprises using a first carboxymethyl cellulose (CMC) in a first flotation cell, and a subsequent step comprises using a second CMC in a subsequent flotation cell, the first and second CMCs having different characteristics. The first CMC has a degree of substitution (DS) that is different ...

A New Process for Cobalt Nickel Separation

A New Process for Co-Ni Separation – ALTA 2010 5 a high Ni:Co ratio, sufficient to satisfy cobalt purity requirements for LME Grade Nickel. This extraction is achieved using a synergistic mixture of Versatic 10 and LIX 63. There are two basic steps involved, as in any …

flotation of ni-sulphides - greenrevolution.org.in

Differential flotation of chalcopyrite, pentlandite and pyrrhotite in Ni ... A new method for the treatment of Ni-Cu sulphides ores from the Sudbury region by differential flotation is presented.

FLOTATION BEHAVIOR OF NICKEL SULFIDE ORE IN A …

Flotation behavior of nickel sulfide ore in a cyclonic flotation column 775 In the flotation system, the density of mineralized bubbles (ρm) is much smaller than that of the fluid (ρ), and generally speaking, the density of particles (ρp) that cannot adhere to bubbles is much higher than that of the fluid (ρ).

Differences Between Sulfides And Oxides | Difference Between

Differences Between Sulfides And Oxides Mining has always been a popular business sector in industry. Because of mining, we get to enjoy different jewelries that are made to be durable even over a long period of time. Research has shown that in 2011 mining earned approximately 805 million dollars for the government, which an increase of 114 million dollars from […]

Effect of pH on the Recovery and Grade of Base Metal ...

flotation of base metal sulphides mainly focused on reagent optimization to achieve optimum recovery and grade [2]. In this study the effect of pH and its balance with reagent dosages is examined with the intention of improving flotation performance. The Bushveld complex which is the

Flotation of Nickel-Copper Sulphide Ore: Optimisation of ...

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 objective of the study was to optimize the process parameters for the flotation of base metals ...

Current Situation on Flotation of Cu-Pb-Zn Sulfide Ore

Current Situation on Flotation of Cu-Pb-Zn Sulfide Ore Jian-Tao Lang1, Si-Qing Liu2,*, Xu Dong3,Yi Pei4 1,2,3,4 Kunming University of Science and Technology, Kunming City, Yunnan Province, China *[email protected] Keywords: Copper-lead-zinc sulfide ore, Flotation process, Separation of bulk concentrate, Flotation column Abstract. In the flotation of copper - lead - zinc polymetallic sulfide ...

Enhanced methods for nickel recovery from low-grade ores ...

Sulfide ore grades range from 0.15-8% Ni, with 93% of known deposits ranging from 0.2-2% Ni. All nickel ores have relatively low nickel content, the classification is as follows: high-grade nickel ore has Ni content greater than 1.8%, middle-grade nickel ore has Ni content between 1.3-1.7%, low-grade nickel ore has Ni content between 0.6-1.2%.

AEROPHINE® - Applications | Solvay

AEROPHINE Ⓡ 3418A promoter has been historically known to provide good selectivity on various Cu-Ni ore bodies against pyrrhotite and MgO. Its use can reduce the quantity of xanthate required, while increasing Cu flotation kinetics and providing improved metallurgy. Additionally, it does not produce CS2 or COS, which is a significant advantage in terms of health and safety when compared to ...

flotation of ni-sulphides

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