processing oxidised nickel ore with flotation

processing oxidised nickel ore with flotation

  • MEI Blog: Challenges in copper flotation

    Sep 10, 2011 The treatment of copper ores with some degree of oxidation is other problem. In this case, the mine usually tries to send to the flotation process a material easy to treat. Nevertheless, the presence of oxide copper minerals is a problem. Then, the manufacturers of flotation reagents must try to develop 

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  • The selective flotation of pentlandite from a nickel ore ScienceDirect

    (1984). Canadian Patent Appliion No. 470,472. Agar, 1991. G.E. AgarFlotation of chalcopyrite, pentlandite, pyrrhotite ores. K.S.E. Forssberg (Ed.), Flotation of Sulphide Minerals 1990, Int. J. Miner. Process., 33 (1991), pp. 119. Agar et al., 1978. G.E. Agar, W.B. Kipkie, P.F. WellsSeparation of sulfides by selective oxidation.

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  • Development and optimization of mixed sulphide/oxide copper ore

    The mixed (transitional) sulphide/oxide ores were stockpiled in the absence of an economic processing route due to their poor flotation response and high gangue acid Further oxidation generates an impoverishment in sulphur and enrichment in copper to form digenite then chalcocite (Dunn and Muzenda, 2001).

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  • Interpreting the role of reagents in the flotation of platinum SAIMM

    Reagents are added to the flotation process of Merensky Reef ores to achieve specific functions . from ore B. Figures 3, 4, and 5 show the recovery of copper. (chalcopyrite), nickel (pentlandite) and pyrrhotite as a function of water recovery recovered to the . cell is consistent with the rapid oxidation of newly liberated.

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  • Potential Processing Routes for Recovery (PDF Download Available)

    Nov 7, 2017 Earlier attempts to process the oxidized PGM ores by conventional flotation methods achieved poor recoveries (typically less than 50%). The resource estimates of oxidized PGM ores which are either unmined, mined, and stockpiled or discarded as overburden waste in South Africa and Zimbabwe are over 

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  • Flotation of cobalt bearing minerals from a mixed UJContent

    Results 8 38 FLOTATION OF COBALT BEARING MINERALS. FROM A MIXED COPPERCOBALT OXIDIZED. ORE. DESMOND TOM BELL. A dissertation submitted to the . thanks to Malcolm Wilkinson Lecturer, Cyril Mustard, Mineral Processing Laboratory .. It is often found in association with iron and nickel in ore de.

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  • 2. Literature review on platinumgroup minerals University of Pretoria

    PGE ores can be divided into the following main classes (Stribrny et al., 2000):. • Alluvial ores: These ores contain almost no sulphide and are composed of individual particles of rock and liberated minerals: an example is the. Colombian deposit. • Layered intrusions (e.g. Bushveld, Stillwater, Great Dyke). • Magmatic nickel 

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  • an investigation of copper recovery from a sulphide oxide ore

    improvement of sulphideoxide copper ores processing through the use of mixed collector systems has shown the ability to enhance the flotation of oxidized copper minerals with xanthate collectors by stabilizing the . Only a few years later, Holman began collecting nickel oxide ores with dimethylglyoxime. It wasn't until 

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  • Sulphidizing reactions in the flotation of oxidized copper minerals, I

    oxidation of sulphide ions takes place at the surface of the solid. The extent of both types of reactions is quantitized by combining specific analytical methods. The results are discussed in terms of possible mechanisms and of their impliions in the sulphidization process applied in the flotation of oxidized copper ores.

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  • collectors for enabling flotation of oxidized coal UKnowledge

    Since then, there has been a steady progress and development in the coal flotation process and coal flotation is currently the most popular process of beneficiating coal fines. More than 400 million metric tons of total ore in U.S. were treated using froth flotation in the year 1980 including almost 12 million metric tons of (D. W. 

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  • Mpho Ramonotsi MSc Thesis Feb 2011 final

    Geology at PPM. 10. 2.1.3. Mineralisation at PPM. 12. 2.2. MINERAL PROCESSING OVERVIEW. 15. 2.2.1. Comminution and Liberation. 15. 2.2.2. Froth Flotation. 16. 2.2.3. Flotation Reagents. 18. 2.2.3.1. Collectors. 19. 2.2.3.2. Frothers. 20. 2.2.3.3. Activators. 21. 2.2.3.4. Depressants. 22. 2.2.4. Flotation of Oxidised Ores.

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  • surface analytical studies of oxidation and collector eCM Journal

    Oxidation and collector adsorption in sulfide mineral flotation. 553 on processing steps involving control of surface oxidation products on the .. to float. The ironcontaining pentlandite (Fe, Ni)9S8 mineral has also been studied with similar results using XPS, SAM,. Mössbauer and spectral reflectance measurements.

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  • Minerals Free FullText A New Direction for Biomining: Extraction

    Jan 30, 2013 Biomining, the biotechnology that uses microorganisms to extract metals from ores and concentrates, is currently used exclusively for processing reduced ores and mine wastes. Metals of economic value also occur extensively in oxidized ores, such as nickel laterites. While these are not amenable to 

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  • Recent International Journal of Mineral Processing Articles Elsevier

    Recently published articles from International Journal of Mineral Processing. Pilotscale plant study on solidstate metalized reduction–magnetic separation for magnesiumrich nickel oxide ores. 10 December Effect of sodium chloride on fine coal flotation and discussion based on froth stability and particle coagulation.

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  • process flowsheet development for beneficiation of nickel ore

    Nov 14, 2007 They found that pulp oxidation improved both the floatability of sulfides and the selectivity of nickel flotation with both grinding in ceramic and steel mills. Magnesium siliebearing minerals, such as lizardite, are known to cause problems in the flotation of nickel sulfide ores (e.g., pentlandite) by adhering to 

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  • role of sodium hexametaphosphate in flotation of a nickel ore

    May 31, 2015 School of Mineral Processing and Bioengineering, Central South University, Changsha, China [email protected] Keywords: nickel ore, lizardite, flotation, concentration process, pentlandite. Introduction ultrasonic bath for 3 min to remove potential oxidation film before the sample was introduced to 

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  • How to Process Oxidized LeadZinc Ore by Flotation 911 Metallurgist

    Mar 19, 2017 The problem of treating oxidized leadzinc ores for the production of highgrade lead zinc concentrates is a complex problem due to the nature of the ores and to the soft sliming characteristics of the lead and zinc minerals. The ore for treatment is a leadzinc carbonate ore in a mixed siliceouslime 

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  • process flowsheet development for beneficiation of nickel ore

    Nov 14, 2007 They found that pulp oxidation improved both the floatability of sulfides and the selectivity of nickel flotation with both grinding in ceramic and steel mills. Magnesium siliebearing minerals, such as lizardite, are known to cause problems in the flotation of nickel sulfide ores (e.g., pentlandite) by adhering to 

    >>Details
  • Ammonia Leaching as a PreTreatment for the Processing of

    Oct 11, 2005 conventional mineral processing technologies for the treatment of low grade oxidised. PGM ores. The exposure of the ore to the atmosphere leads to the formation of an oxidation layer shown success in the extraction of base metals (94% and 91% Cu and Ni extraction) . Flotation of Oxidised Ores .

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  • Differential Oxidation of Iron Sulfides to Modify the Au UQ eSpace

    Keywords: Refractory ore, Sulfide minerals, Gold to Sulfur ratio, Pyrite, Hydrometallurgy,. Oxidation, Flotation. Australian and New Zealand Standard Research Classifiions (ANZSRC). ANZSRC code: 091403, Hydrometallurgy, 25%. ANZSRC code: 091404, Mineral Processing, 25%. ANZSRC code: 090499, Chemical 

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  • The selective flotation of pentlandite from a nickel ore ScienceDirect

    (1984). Canadian Patent Appliion No. 470,472. Agar, 1991. G.E. AgarFlotation of chalcopyrite, pentlandite, pyrrhotite ores. K.S.E. Forssberg (Ed.), Flotation of Sulphide Minerals 1990, Int. J. Miner. Process., 33 (1991), pp. 119. Agar et al., 1978. G.E. Agar, W.B. Kipkie, P.F. WellsSeparation of sulfides by selective oxidation.

    >>Details
  • Bioleaching of nickel sulphide out of nickel bearing flotation residue

    processing low metal content bearing ores. As such, microorganisms are able to promote the oxidation of sulphide minerals, including the most refractory ones, under atmospheric pressure. This research work aimed at extracting nickel out of the flotation process tailing, which consisted essentially of silica and iron and 

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  • Edy Sanwani Google Scholar Citations

    Bioflotation: bacteriamineral interaction for ecofriendly and sustainable mineral processing. E Sanwani, SK Chaerun, RZ Isolation and phylogenetic characterization of ironsulfuroxidizing heterotrophic bacteria indigenous to nickel laterite ores of Sulawesi, Indonesia: Impliions for bi SK Chaerun, S Hung, MZ 

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  • Ammonia Leaching as a PreTreatment for the Processing of

    Oct 11, 2005 conventional mineral processing technologies for the treatment of low grade oxidised. PGM ores. The exposure of the ore to the atmosphere leads to the formation of an oxidation layer shown success in the extraction of base metals (94% and 91% Cu and Ni extraction) . Flotation of Oxidised Ores .

    >>Details
  • Unlocking Disseminated Nickel Sulphides Using the CESL Teck

    May 26, 2010 Smelting and refining of massive sulphides begins with the flotation of ore, typically in the range of. 0.22% to processing the conventional flotation process on lowgrade disseminated sulphide ores tends to The CESL Nickel Process uses similar pressure oxidation (PO) conditions to the CESL Copper.

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  • Flotation of cobalt bearing minerals from a mixed UJContent

    Results 8 38 FLOTATION OF COBALT BEARING MINERALS. FROM A MIXED COPPERCOBALT OXIDIZED. ORE. DESMOND TOM BELL. A dissertation submitted to the . thanks to Malcolm Wilkinson Lecturer, Cyril Mustard, Mineral Processing Laboratory .. It is often found in association with iron and nickel in ore de.

    >>Details
  • MEI Blog: Challenges in copper flotation

    Sep 10, 2011 The treatment of copper ores with some degree of oxidation is other problem. In this case, the mine usually tries to send to the flotation process a material easy to treat. Nevertheless, the presence of oxide copper minerals is a problem. Then, the manufacturers of flotation reagents must try to develop 

    >>Details
  • Sulphidizing reactions in the flotation of oxidized copper minerals, I

    oxidation of sulphide ions takes place at the surface of the solid. The extent of both types of reactions is quantitized by combining specific analytical methods. The results are discussed in terms of possible mechanisms and of their impliions in the sulphidization process applied in the flotation of oxidized copper ores.

    >>Details
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