2020-1-8 (Ni, Cu or Co) recovered. The SN ratio for this scenario was determined using: SN = -10 [ ∑ ( )] (1) Where n is the number of repetition of experiments, and y i this the response value (recovery) of the i experiment. 2. 2. Flotation Procedure All the flotation test-work was done using the Denver laboratory machine with a 1.5l stainless steel ...
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2014-8-11 grade of base metal sulphides (PGMs) by flotation, Proceedings of the World Congress on engineering and Computer Science 2011 Vol II, WCECS 2011
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The concentrate tested was a flotation concentrate from the Northmet project, USA, assaying 14.7% Cu, 3.05% Ni, 0.14% Co, 26.7% S, 1.4 g/t Au, 2.2 g/t Pt, and 9.9 g/t Pd. Pressure-oxidation conditions were 225 °C, pulp density was 11%, retention time was 120 min, and oxygen overpressure was 689 kPa.
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1992-3-1 Minerals Engineering, Vol. 5, Nos. 3-5, pp. 381-395, 1992 0892-6875192 $5.00+0.00 Printed in Great Britain 1992 Pergamon Press pie THE ROLE OF CARBOXY METHYL CELLULOSE IN THE FLOTATION OF A NICKEL SULPHIDE TRANSITION ORE E.J. WELLHAM, L. ELBER and D.S. YAN WA School of Mines, PO Box 597, Kalgoorlie, WA 6430, Australia ABSTRACT The flotation
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Flotation kinetics of pentlandite and violarite contained in copper–nickel ores and the effect of crystallochemical peculiarities of the minerals on their flotation features are studied.
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2013-7-18 Abstract. 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.
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2013-7-18 Oxidation of complex nickel-copper sulphides is a serious concern in their flotation. This paper addresses this issue through a study of batch tests using stockpile samples and fresh samples oxidized in the lab.
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2018-5-30 For Flotation Determine the distribution of Recoverable vs. Non-Recoverable elements 1. Ni-Sulphides (Pentlandite, Millerite) vs. Ni in Silicates (Serpentine, Talc) 2. This will help determine the Grade vs. Recovery For Hydromet Determine the Elemental Deportment of desired Element(s) 1. Ni-Laterites -- Leaching parameter can be determined by
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2016-6-7 Figure 5 Flotation selectivity in the separation of pentlandite from pyrrhotite using sulfur dioxide and diethylenetriamine with sodium isobutyl xanthate (pH+9.2, 25 g t 1 Dow froth!250). (Reprinted with permissionfrom the CanadianInstitute of Mining, Metallurgy and Petroleum.) Figure 6 Flotation results obtained with Clarabelle ore from
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2021-10-1 In addition to the depression of Ni recovery, Ni grade in the Cu concentrate also reduced at both pH 9 and pH 12. Therefore, dextrin was a suitable depressant for millerite in Cu-Ni flotation, the selectivity between millerite and chalcopyrite was greatly dependent on the pulp pH and dextrin’s dosages. Download : Download high-res image (379KB)
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2021-8-2 Flotation Of Ni Sulphides; Provide professional mining equipment. Optimisation of reagent addition during flotation of a ,addition on flotation performance of a nickel sulphide ore. the objectives of the study were to: develop an understanding of the effects of collector and depressant dosage, and its interactive effects, on flotation ...
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2014-8-11 grade of base metal sulphides (PGMs) by flotation, Proceedings of the World Congress on engineering and Computer Science 2011 Vol II, WCECS 2011
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Flotation kinetics of pentlandite and violarite contained in copper–nickel ores and the effect of crystallochemical peculiarities of the minerals on their flotation features are studied.
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2015-11-20 supply will remain heavily reliant on the processing of massive sulphides. Smelting and refining of massive sulphides begins with the flotation of ore, typically in the range of 0.2-2% nickel, to an acceptable concentrate grade of 10 to 20% nickel.[2,11] Concentrate smelting
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2021-10-5 disseminated sulphides through conventional flotation circuits at high grades and with high values for PGEs – mostly palladium (70%) and rhodium (10%) (work completed by Strategic Metallurgy on MAD177 samples) Nickel Concentrate Metal Grades Ni %
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2016-6-14 (pH: 9.5). The average composition of the flotation feed was 0.94 per cent Ni, 0.10 per cent Cu, 31.8 per cent S. Redox potential, dissolved oxygen, pH and temperature were measured in the stirred tank as well as in the four litre flotation cell. Slurry samples were periodically withdrawn from the head tank into the flotation cell and floated.
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2018-5-30 For Flotation Determine the distribution of Recoverable vs. Non-Recoverable elements 1. Ni-Sulphides (Pentlandite, Millerite) vs. Ni in Silicates (Serpentine, Talc) 2. This will help determine the Grade vs. Recovery For Hydromet Determine the Elemental Deportment of desired Element(s) 1. Ni-Laterites -- Leaching parameter can be determined by
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2012-10-15 probability of fair liberation of sulphides from gangues around 60 mesh but the locking of galena with sphalerite and other sulphides continued to finer sizes. The effects of various parameters like granulomery for rougher and cleaner flotation, pH of the pulp, dosage of collector, depressant and activator were studied in detail.
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2011-9-10 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 world’s largest known source of PGMs with very complex
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2015-11-20 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 solvent extraction process: extraction and stripping.
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2021-8-2 Flotation Of Ni Sulphides; Provide professional mining equipment. Optimisation of reagent addition during flotation of a ,addition on flotation performance of a nickel sulphide ore. the objectives of the study were to: develop an understanding of the effects of collector and depressant dosage, and its interactive effects, on flotation ...
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2021-3-26 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 performance.
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2018-8-20 copper-nickel sulphide ores is stage-wise flotation. The first flotation stage concentrates mainly copper minerals. The copper middling is re-floated to obtain nickel concentrate. During the industrial process of copper-nickel ore, it was observed that significant amount of nickel sulphides was lost to the tailings during the nickel flotation.
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2016-6-14 (pH: 9.5). The average composition of the flotation feed was 0.94 per cent Ni, 0.10 per cent Cu, 31.8 per cent S. Redox potential, dissolved oxygen, pH and temperature were measured in the stirred tank as well as in the four litre flotation cell. Slurry samples were periodically withdrawn from the head tank into the flotation cell and floated.
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2021-10-5 disseminated sulphides through conventional flotation circuits at high grades and with high values for PGEs – mostly palladium (70%) and rhodium (10%) (work completed by Strategic Metallurgy on MAD177 samples) Nickel Concentrate Metal Grades Ni %
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2011-9-10 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 world’s largest known source of PGMs with very complex
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2020-9-13 16.2% Ni from massive sulphides at 90.6% recovery with 6.26 g/t total PGEs 13.5% Ni from disseminated sulphides at 62% recovery with 8.10 g/t total PGEs • Copper concentrate produced at the following grades: 30.3% Cu from massive sulphides at 90.6% recovery with 7.39 g/t total PGEs
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2020-1-8 There is need to establish the degree of weathering of these base metal sulphides since they are associated with PGMs. Table 1: Chemical Composition of the slurry feed to the flotation circuit. Element Na Mg Al Si P S Cl K Ca Ti %wt 0.17 9.90 6.85 16.49 0.00 0.08 0.02 0.11 6.58 0.61 Element V Cr Mn Fe Co Ni Cu Zn Sr Zr
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2015-11-20 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 solvent extraction process: extraction and stripping.
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2020-9-23 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,
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