Impact of pulp rheological behavior on selective ...

2012-10-5  Froth flotation based on selective separation of the Ni minerals from ores containing large amounts of fibrous serpentines (chrysotile) has been a long lasting challenge. One underlying reason has largely been considered to be slime-coating.

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Kinetic study of Ni(II) removal using ion flotation ...

2018-4-1  In order to evaluate the efficiency of Ni(II) ion flotation with the consideration both of Ni(II) removal and water removal during ion flotation, Ni(II) removal obtained for different pH as a function of water removal is shown in Fig. 1(c). The diagonal line (the 50/50 split line) is attributed to no enrichment of Ni(II) in the solution or the froth (Polat and Erdogan, 2007).

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Ion flotation for removal of Ni(II) and Zn(II) ions from ...

Ion flotation was applied to Ni (II) and Zn (II) cations removal from low concentration synthetic wastewaters. Ethylhexadecyldimethylammonium bromide

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The effect of frother type and dosage on flotation ...

2012-10-1  Both frothers are totally soluble in water. The air supply to the flotation cell was maintained at a flow rate of 7 L/min in all tests and the froth height was kept constant at 2 cm throughout. Four concentrates were collected at 2, 6, 12 and 20 min of flotation time by

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NICKEL AND COBALT ORES: FLOTATION

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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Gas rate and froth depth effects on performance of a Cu

1989-1-1  311 Gas rate and froth depth effects on performance of a Cu-Ni separation flotation column +Metallurgical Technology Centre, Falconbridge Limited, Falconbridge, Ontario, Canada, POM ISO ^Department of Metallurgy and Materials Science, University of Toronto, Toronto, Ontario, Canada, M5S 1A4 ABSTRACT A 0.9 m diameter pilot flotation column has been in operation at Falconbridge's

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Optimization and separation mechanism of Ni(II) removal ...

2018-7-11  Ion flotation as a physicochemical method is known as an effective process for the removal and recovery of heavy metal ions from the solution. Various metal ions in the wastewaters have been successfully removed using ion flotation (Doyle 2003; Fu and Wang 2011).

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

2020-1-8  Keywords: flotation, process optimization, Taguchi orthogonal array, ANOVA. 1. Introduction Froth flotation is widely used for separating base metal sulphide minerals in complex ores. One of the major challenges faced by the flotation of these ores is the ever varying grade and mineralogy as the ore is exploited (Kabuda et. al., 2011).

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MgO Depression in Ci-Ni Flotation - Froth Flotation ...

2021-8-18  To participate in the 911Metallurgist Forums, be sure to JOIN LOGIN; Use Add New Topic to ask a New Question/Discussion about Flotation.; OR Select a Topic that Interests you.; Use Add Reply = to Reply/Participate in a Topic/Discussion (most frequent). Using Add Reply allows you to Attach Images or PDF files and provide a more complete input.; Use Add Comment = to comment on

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The influence of electrolytes present in process water on ...

2016-10-1  The slightly lower amounts of solids recovered with NO 3 − compared to Cl − and SO 4 2− was expected, as it has been shown previously that nitrates tend to retard froth stability in froth flotation due to their ability to retard or deactivate gangue minerals such as talc during the flotation of Cu-Ni containing ores (Slatter et al., 2009 ...

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

2021-9-1  flotation cell. The pH was adjusted by lime and Merck sulfuric acid. Na 2 S was applied as copper minerals depressant and also flotation pulp potential adjustment. 50 g/t diesel oil was used as molybdenite collector. Flotation pulp potential measured with an ORP electrode (Ag/AgCl) in presence of nitrogen gas and air.

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

2011-9-10  B. Froth Flotation Flotation is a physio-chemical process which exploits the differences in the electrochemical properties of mineral surfaces. All minerals are soluble in water to some extent, which results in the formation of an ‘electrical double layer’ at the mineral surface. Flotation depends directly on the

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AN INVESTIGATION OF FROTH EFFECTS IN SCAVENGING

2016-5-6  AN INVESTIGATION OF FROTH EFFECTS IN SCAVENGING FLOTATION OF PLATINUM FROM UG-2 ORE Deepika .I. Bennie This MSc. in Chemical Engineering Dissertation is submitted in fulfilment of the ... Figure 2-9: Exit of smelter containing the PGM + Au and Ni–Cu matte ...

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The effect of particle size on coal flotation kinetics: A ...

2018-10-4  Froth flotation is considered to be one of the rare commercially available technologies for cleaning and recovering of coal fines (Yoon and Aksoy, 1999). Coal flotation is a very complex process that is characterized by a large variation in physical and chemical properties of treated material, i.e. coal and mineral matter.

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Microwave Pre-Treatment of Ores and its Effect on the ...

2017-8-8  Froth Flotation •Froth Flotation is a separation process which takes advantage of the differences in hydrophobicity of valuable minerals and gangue (waste) ... [Fe,Ni] 9 S 8) and other minerals Table 1: Voisey’sBay Assay Information •Flotation is the primary method of separation used to

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KINETICS AND EFFICACY OF FROTH FLOTATION FOR

2012-11-22  Froth flotation has also been applied in processing of municipal solid waste (Shen . et al, 1999; Dodbida . et al, 2002; Alter, 2005). PCB fines consist of mixture of particles of metals, alloys, ceramics, and plastics, each with distinct surface properties that should enable selective wetting and make froth flotation separation possible.

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v118n1a8 Effect of frother and depressant interaction on ...

2018-1-30  A Denver flotation cell was used at a rotor speed maintained at 1200 r/min for all batch flotation tests. The collector, sodium isobutyl xanthate (SIBX), was maintained at 300 g/t for all batch tests while frother (SAS FROTH) and depressant (DLM), which is a mixture of natural and modified polysaccharides) dosages were varied. The froth was scraped

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Flotation Reagents - Mineral Processing Metallurgy

2016-6-8  This data on chemicals, and mixtures of chemicals, commonly known as reagents, is presented for the purpose of acquainting those interested in froth flotation with some of the more common reagents and their various uses.. Flotation as a

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(PDF) FROTH FLOTATION - ResearchGate

The steps in Froth flotation are simple, such that the first step is to pour the feed into the . ... feed had 1% Cu,Ni which is representative of the whole feed, meaning that the Xanthate .

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Optimization and separation mechanism of Ni(II) removal ...

2018-7-11  In this study, the optimization of Ni(II) removal and water recovery in the ion flotation were evaluated using the response surface method. The Ni(II) removal and water recovery were modeled and described as a function of the main variables including pH, collector concentration, and frother concentration. Seventeen experiments were performed as a central composite design by 23 full

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FROTH FLOTATION TO REPLACE ELECTRIC FURNACE

2017-6-9  month with a grade of 0.69%Ni, 0.05%Co and 0.70%Cu1. 63000 tonnes per month concentrate with 3.20%Ni, 4%Cu and 0.18%Co is produced therefrom through froth flotation and is fed into a Niro dryer at 75%-78% solids, producing a dry concentrate with less than 0.2% humidity. The dry concentrate is the feed to an Outokumpu flash-

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MgO Depression in Ci-Ni Flotation - Froth Flotation ...

2021-8-18  To participate in the 911Metallurgist Forums, be sure to JOIN LOGIN; Use Add New Topic to ask a New Question/Discussion about Flotation.; OR Select a Topic that Interests you.; Use Add Reply = to Reply/Participate in a Topic/Discussion (most frequent). Using Add Reply allows you to Attach Images or PDF files and provide a more complete input.; Use Add Comment = to comment on

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KINETICS AND EFFICACY OF FROTH FLOTATION FOR

2012-11-22  Froth flotation has also been applied in processing of municipal solid waste (Shen . et al, 1999; Dodbida . et al, 2002; Alter, 2005). PCB fines consist of mixture of particles of metals, alloys, ceramics, and plastics, each with distinct surface properties that should enable selective wetting and make froth flotation separation possible.

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Flotation collectors optimized performance

the froth characteristics in the flotation plant and resolved the froth issues downstream. The metallurgical results were also improved, ... and Ni. Tecflote works in most circuits and if you are having a selectivity issue Tecflote is ideal for rejecting pyrite gangue. Optimization

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AN INVESTIGATION OF FROTH EFFECTS IN SCAVENGING

2016-5-6  AN INVESTIGATION OF FROTH EFFECTS IN SCAVENGING FLOTATION OF PLATINUM FROM UG-2 ORE Deepika .I. Bennie This MSc. in Chemical Engineering Dissertation is submitted in fulfilment of the ... Figure 2-9: Exit of smelter containing the PGM + Au and Ni–Cu matte ...

More

v118n1a8 Effect of frother and depressant interaction on ...

2018-1-30  A Denver flotation cell was used at a rotor speed maintained at 1200 r/min for all batch flotation tests. The collector, sodium isobutyl xanthate (SIBX), was maintained at 300 g/t for all batch tests while frother (SAS FROTH) and depressant (DLM), which is a mixture of natural and modified polysaccharides) dosages were varied. The froth was scraped

More

The effect of particle size on coal flotation kinetics: A ...

2018-10-4  Froth flotation is considered to be one of the rare commercially available technologies for cleaning and recovering of coal fines (Yoon and Aksoy, 1999). Coal flotation is a very complex process that is characterized by a large variation in physical and chemical properties of treated material, i.e. coal and mineral matter.

More

Froth Flotation of a Particular ore

2019-4-27  was due to a more stable froth phase. At a frother dosage of 12g/t, the froth phase formed was inadequate to help facilitate efficient flotation. It was also evident that apart from the increase in water recovery, there were no benefits associated with the use of

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Effect of ultrafine kaolinite particles on the flotation ...

2020-3-3  Ni C, Xie G, Liu B et al (2015) A design of an inclined froth zone in column flotation device to reduce ash content in clean coal. Int J Coal Prep Util 35(6):281–294. Article Google Scholar Ni C, Bu X, Xia W et al (2018a) Observing slime-coating of fine

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A Simple Model for the Calculatio n of Entrainment in ...

2005-8-11  created a froth layer laden with minerals on the flotation cell. Two pedals were used to scrap the froth containing floated and entrain-ed particles by keeping the depth of froth scrapping constant. The rapped fcs oth was taken fromr nto concentrate trays (Fi the ci lle g. 1). The time scale was initialzed at ti he momen whent the air was turned

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