Full article: The Direct Leaching of Nickel Sulfide …
Beneficiation is accomplished through comminution and froth flotation (refer to Figure 1); in some instances, magnetic separation is employed before or after flotation to reject monoclinic pyrrhotite which is ferromagnetic …
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Froth Flotation Process
The froth flotation process is one of the most popular operational processes for mineral beneficiation. Click to know more about froth flotation process, its mechanism, watch videos and more. ... In ore/mineral beneficiation, froth flotation is a method by which commercially important minerals are separated from impurities and other minerals by ...
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Simulating the Impact of Ore and Water Quality on Flotation …
Overall, the developed modeling tool can be applied widely for minerals processed by using froth flotation and water types available for kinetic laboratory flotation tests. ... Siura, T. Selective dissolution and determination of sulphides in nickel ores by the bromine-methanol method. Bull. Geol. Soc. Finl. 1977, 49, 79–84.
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Solved 6. In the extraction of nickel, roasted pentlandite
6. In the extraction of nickel, roasted pentlandite [(NiFe) 4 S 8 ] concentrate is subjected to converting operation. The resulting matte is very slowly cooled from 1100 to 40 0 ∘ C (in 3 days), ground and magnetically separated to obtain a Cu − Ni alloy. Ni 3 S 2 and Cu 2 S are separated by froth flotation. The electrowinning of nickel is carried out with insoluble anodes, the …
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Improving Nickel Recovery in Froth Flotation by …
It must be noted that impurity removal from process water does not need to be complete but an increase in froth flotation nickel recovery is seen also after partial removal of impurities from the water. Therefore, DAF …
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Microwave Treatment of Copper–Nickel Sulfide Ore for …
The effect of microwave treatment on the grinding and flotation performance of a typical copper–nickel sulfide ore was evaluated, based on the determination of its microwave absorption capability, grinding and flotation indexes such as crack percentage, mineral liberation degree, particle size distribution, relative work index (RWI), metal enrichment ratio and …
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Costs of froth flotation?
The costs of froth flotation are aggregated in this data-file, building up the typical capex costs (in $/Tpa), energy costs (in kWh/ton) and other opex lines (in $/ton) of one of the most important processes for the modern metals and materials industry. A good rule of thumb is $10/ton costs to concentrate ore by over 4x (this excludes underlying ore costs).
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PGM extraction from oxidized ores using flotation and …
The objectives of this investigation were first to conduct flotation test work on an oxidized PGM ore from the Mimosa mine in Zimbabwe using a sulphide flotation scheme and an oxide flotation scheme using alkyl hydroxamate (AM810), an improved hydroxamate co-collector which has not been tested previously on oxidized PGM ores, and then do a ...
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Challenges in processing nickel laterite ores by flotation
Selective flocculation can help to enhance flotation performance of laterite ore. The challenges in processing nickel laterite ores using flotation process were comprehensively …
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Enhanced methods for nickel recovery from low …
The second stage of froth flotation produces a nickel concentrate of 10-20% Ni, along with other by-products and gangue. ... Application of three xanthates collectors on the recovery of nickel and pentlandite in a low-grade …
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Selective sulphidation and flotation of nickel from a nickeliferous
The absolute nickel recovery is based on the total nickel content of the ore, while the recoverable nickel is based on the amount of nickel sulphide present after sulphidation. The overall economics and suitability of the process relies on the total nickel recovery, whereas the flotation performance should be assessed on the recoverable nickel ...
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Estimated Water Requirements for the Conventional …
Froth flotation is part of a copper beneficiation process in which finely ground ore is placed in ... To prepare ore for the flotation process, run-of-mine ore, which may contain from about 2 to 5 percent water, by weight, when mined, is delivered to the crusher(s) to be reduced in size. At this stage, much of the moisture with the ore may be
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Optimising froth condition and recovery for a nickel ore
A case study on a nickel ore is presented in which the effect of frother and plant operation (as changes in cell air rate and mass pull) on froth selectivity and plant performance …
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The effect of sodium carbonate on the dispersion behaviour and froth
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 ...
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Handbook of Flotation Reagents Chemistry, Theory and …
2010. Scientists and technologists in world over are making large efforts to streamline the conventional technological schemes of ore processing, in particular froth flotation towards reducing overall costs, limiting the use of dangerous substances, decreasing waste streams and improving waste disposal.
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Froth floatation | PPT
Froth floatation - Download as a PDF or view online for free. ... thus preventing their flotation. They are key to the economic flotation of certain ores such as platinum and nickel sulphides. There are many types of depressants and their actions are complex and varied, and in most cases not fully understood, making depression more difficult to ...
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(PDF) The effects of mixtures of potassium amyl …
These two methods were used in combination in the flotation of Jinchuan nickel sulfide ore and the metallurgical performance was significantly improved: nickel recovery increased from 82.97% to 86 ...
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(PDF) Effect of frother and depressant interaction on flotation of
CORIN, K., and REDDY, A.M.L. 2011. The effect of ionic strength of plant water on valuable mineral and gangue recovery in a platinum bearing ore from the Merensky reef. Minerals Engineering, vol. 24, no. 2. pp. 131–137. EKMECKCI, Z. and BRADSHAW, D.A. 2003. Effects of frother type and froth height on the flotation behaviour of chromite in UG2 ...
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Decarbonization of mineral processing operations: Realizing the
The inclusion of CO 2 to the froth flotation improved the nickel recovery and grade by an extra 10% and 4%, respectively while permanently storing the CO 2 at the same time. ... (10.1) at which ultramafic nickel ore flotation is performed contribute to slime coating of pentlandite [8]. At pH 10.1, serpentine and pentlandite are oppositely ...
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The effect of using pure thiol collectors on the froth …
-DTP in the froth flotation of pentlandite containing ore. INTRODUCTION Nickel sulphide mineral ores amounts to more than fifty percent of all commercial nickel (Senior et al., 1995). There is a growing demand for nickel and it is projected that the current nickel sulphide reserves may be depleted by 2030 (Tundermann et al., 1996).
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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 performance.
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Improving Nickel Recovery in Froth Flotation by Purifying
Based on the feasibility study, improved nickel recovery by DAF treatment of process water can bring economic benefits at a concentrator plant. 1. Introduction. The …
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Froth flotation of a Merensky Reef platinum bearing ore using mixtures
In trace amounts, these are closely associated with base metal sulphides (BMS). Froth flotation is used as a bulk sulphide recovery to beneficiate these PGE ores. To maximise the recovery of the PGEs it is required to improve the recovery of the BMS. The chemical additives used largely determines the performance of the froth flotation process.
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Nickel (Ni) Ore | Properties, Formation, Minerals, Deposits
Nickel ore refers to the naturally occurring rocks or minerals that contain significant amounts of nickel. Nickel is a chemical element with the symbol Ni and atomic number 28. It is a silvery-white metal with a relatively high melting point and excellent corrosion resistance. ... Froth flotation: Froth flotation is a common method used to ...
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Reduction of magnesia in nickel concentrates by modification of the
Reduction of magnesia TABLE 2 Nominal head grade of the nickel ore 143 Conventional flotation test Preliminary flotation tests were carried out to optimise reagent dosage and flotation conditions. The conditions found to give the best nickel recovery is given in Table 3. ... 379-385 (1989). Pal, R. & Masliyah, J., Flow in froth zone of a ...
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Flotation of Nickel-Copper Sulphide Ore: Optimisation …
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 ...
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Upgrading of talc-bearing copper-nickel sulfide ore by froth flotation
Download Citation | On Apr 1, 2024, Jie Xie and others published Upgrading of talc-bearing copper-nickel sulfide ore by froth flotation using sodium phytate as depressant | Find, read and cite all ...
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The estimation of platinum flotation grade from froth …
The ore used was UG2 from Rustenburg provided by Anglo ... variables and process conditions and the froth flotation grades could be established. Positive ... and nickel. Video recordings were made of the froth with the use of the o Xacti, high definition (1280 × 720), waterproof
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Development and implementation of a new flowsheet for …
In the longer term, the flotation of nickel slimes to give a low grade (6–10% Ni) concentrate for hydrometallurgical treatment seems likely. (7) The outcomes of this work …
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Flotation of Gold and Gold-Bearing Ores
In Brazil, the application of flotation for gold-bearing ores started in the 1980s (Araujo and Peres, 1995). There are three important Brazilian plants using flotation to process gold ores (Monte et al., 2002). At the São Bento plant, gold and pyrite are floated into a bulk concentrate for further processing by pressure and bacterial leaching ...
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