Flotation Of Ni Sulphides
Flotation of NickelCopper Sulphide Ore: Optimisation of ...
the flotation recovery of Ni, Cu and Co from a nickelcopper 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 from a nickelcopper sulphide ore. 2. Materials ...
SULFURIZATION AND FLOTATION. Assoc. Prof. Dr. Willie Nheta ...
The flotation results of the sulfurized Ni/Cu Slag are consistent with the microflotation. Increase of PAX dosage lea ds to an increase the recovery of Ni. pH has a major influence on the flotation of the sulfurized Ni/Cu slag with a maximum recovery obtained at a pH of 7. Further increase in flotation pH beyond 7 negatively affects
Potential Use of Oxygen Depleted Air In Nickel Sulphide ...
flotation gas to decelerate the sulphides oxidation and therefore diminish the colloidal hydroxide slimes presence. The flotation residence time can be dramatically shortened in both cases. Further tests are recommended. ii Acknowledgements I would like to thank all my supervisors: Bertil Pålsson, Alexandra Lundmark, and Cecilia Lund for sharing their wide knowledge and keeping me on the ...
Chapter 8 Flotation of NonSulphide Minerals
Flotation of quartz in aminium acetate solutions at neutral pH Modulation of flotation ... Grind and float sulphides to reject heavy minerals Gravity separation of cassiterite (very high density) Fines to cassiterite flotation – ptolyl arsonic acid at pH 5 – 6 Quartz Very widely present in ores. Very often the aim is to prevent it from floating rather than recovering it by flotation ...
Which type of ores are concentrated by froth flotation ...
Sulphides. The froth flotation method is used to separate and concentrate ores by altering their surfaces to a hydrophobic or hydrophilic condition. This method is based on the principle of the difference in the wetting properties of the ore and the gangue particles with the water and oil. Therefore, sulphide ores preferably wetted by the oil ...
flotation of ni sulphides
flotation of ni sulphides. Sulphide Flotation an overview ScienceDirect Topics,The concentrate tested was a flotation concentrate from the Northmet project USA assaying 147 Cu 305 Ni 014 Co 267 S 14 gt Au 22 gt Pt and 99 gt Pd Pressureoxidation conditions were 225 °C pulp density was 11 retention time was 120 min and oxygen overpressure was 689 kPa The ore treated had a P80 of 15 μm...
Beneficiation and Extractive Metallurgy of PGE
and in solid solution with the Cu, Ni and Fe sulphides. The principal opaque sulphide minerals are pyrrhotite, pentlandite and chalcopyrite, listed in order of decreasing abundance. Minor sulphides include cubanite, mackinawite and pyrite (Cabri, 1981b; Cawthorn et al., this volume). Typically, the PGE will occur as fine inclusions within the BMS or as intergrowths between the BMS and gangue ...
FROTH FLOTATION : RECENT TRENDS Flotation of Sulphide Ores ...
FROTH FLOTATION : RECENT TRENDS IIME, JAMSHEDPUR, 1998; pp. 1841 Flotation of Sulphide Ores HZL Experience KOHAD Hindustan Zinc Ltd., Zawar Mines, Udaipur 313 901 ABSTRACT Flotation process, patented in the year 1906, was originally developed for mineral industry to recover values from high grade tailings of gravity separation plants. This technology has acclaimed .
BIOBENEFICIATION OF MULTIMETAL BLACK SHALE ORE BY FLOTATION
Other sulphides are chalcopyrite (Cu), sphalerite (Zn), pyrite (Co) and alabandite (Mn). The ore sample contanied % graphite as a fine mixture with other minerals. In standard flotation, a low grade sulphide concentrate with % Ni and nickel recovery of 74 % was obtained from the studied black shale ore. The mass of concentrate was then % of the ore feed. The recoveries of copper ...
sulfide flotation
This study explores the flotation behavior of chalcopyrite in the presence of different concentrations of sodium sulfide (Na2S·9H2O) at pH 12 under controlled potential conditions. It was observed that the flotation of chalcopyrite is not depressed completely when the pulp potential is low, even at high concentrations of sodium sulfide,, 10−1–10−2 mol/L. However, a partial and ...
Flotation Of Ni Sulphides
Flotation of Ultramafic Ni Ore webpagesmcgillca Flotation of Ultramafic Ni Ore Salah Uddin Research Seminar March 12, 2010 Froth: Sulphides and Ultramafic 3 Convention flotation 0 2 4 6 0 20 40 60 80 100 Ni recovery (%) Ni grade (%) 20 25 30 35 0 20 40 60 80 100 Ni recovery (%) MgO grade (%) H1 H2L H2U H3L H3U H4 Dai et . Get Price
Transport of metals and sulphur in magmas by flotation of ...
· The impliions extend to the transport and deposition of Ni, Cu and Ptrich sulphides in magmatic ore deposits, where it is clearly not safe to assume that sulphide melt will always tend to ...
Flotation Of Ni Sulphides
Flotation Of Ni Sulphides. Layered series of the great dyke is divided into a lower ultramafic sequence and an upper mafic concentrations of pge, ni, and cu in the form of disseminations of mainly intercumulus sulphides are found in the main sulphide zone msz hosted in pyroxenites, some. We are a professional mining machinery manufacturer, the main equipment including: jaw ...
AN ASSESSMENT OF PENTLANDITE OCCURRENCE IN THE RUN OF .
IMPACT ON THE FLOTATION YIELD. Antoine F. Mulaba ... 7869mt live capacity of ore with feed grade from underground operation of %Ni, % Cu and % Co. The valuable minerals in the ore are Pentlandite, Chalcopyrite. Cobalt is present mainly in the solid solution in pentlandite. The common nonsulphides minerals are Amphibolites, quartz, micas, and Feldspar while pyrite and pyrrhotite ...
flotation of ni sulphides
Bulk flotation Ni + Cu (prepared for differential) • 7581% Ni recovery, Mine (NiCuPGE) The newest and largest Ni sulphide mine in Western Europe. Differential Flotation of Chalcopyrite, Pentlandite. Jul 6,, AbstractA new method for the treatment of NiCu sulphides ores from the Sudbury region by differential flotation ispresented The method. Transport of metals and sulphur in magmas by ...
(PDF) Flotation of NickelCopper Sulphide Ore ...
· grade of base metal sulphides (PGMs) by flotation, Proceedings of the World Congress on engineering and Computer Science 2011 Vol II, WCECS 2011, .
Principles and practice of sulphide mineral flotation ...
Electrochemical flotation of sulphides: reactions of chalcocite in aqueous solution. International Journal of Mineral Processing, vol. 12, 1984, p. 55–72. CrossRef Google Scholar. 41. Richardson and Walker The flotation of chalcocite, bornite, chalcopyrite, and pyrite in an electrochemicalflotation cell. In: XVth International Mineral Processing Congress, tome II, 1985. p. 198 ...
Flotation Of Nisulphides
Flotation Of Nisulphides. Flotation of nisulphides. flotation of nisulphides greenrevolution. flotation of nisulphides. Differential flotation of chalcopyrite, pentlandite and pyrrhotite in Ni A new method for the treatment of NiCu sulphides ores from the Sudbury region by differential flotation is presented.
Appliion of Doptimal design for optimizing copper ...
Appliion of Doptimal design for optimizing coppermolybdenum sulphides flotation 253 recovery. Control of reagent additions is the most important aspect of the flotation strategy in commercial plants (Bulatovic, 2007). Selection of reagent and flowsheet used in actual plant practice is usually dictated by the nature and mineralogy of the ore, type of minerals present, flotation behaviour ...
Nickel and Cobalt Ores: Flotation
The final concentrate obtained in the cleaner flotation step reached up to 2% Ni and % MgO. The global and flotation recoveries in the process were approximately 30% and 60%, respectively, due ...
(PDF) Flotation of NickelCopper Sulphide Ore ...
· · grade of base metal sulphides (PGMs) by flotation, Proceedings of the World Congress on engineering and Computer Science 2011 Vol II, WCECS 2011, October 1921, San Francisco, USA Nashwa, ...
