Reducing quartz entrainment in fine coal flotation by ...

2019-1-1  At 20 mg/L of PAC, the negative surface charge of quartz particle was neutralized and the electrostatic double layer repulsive force between quartz particles reached

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Reduction of fine quartz entrainment in sulfide flotation ...

2021-3-24  Flotation separation of fine mineral particles is hampered by high entrainment of the hydrophilic gangue minerals. No effective ways are available to reduce the

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Reducing quartz gangue entrainment in sulphide ore ...

2010-11-1  The batch flotation results show that the addition of PEO can reduce quartz entrainment and improve concentrate grade in chalcopyrite and sulphide ore

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Professor Yongjun Peng - School of Chemical Engineering ...

2021-9-7  Reduction of fine quartz entrainment in sulfide flotation by polymer depressants. XXIII International Mineral Processing Congress (IMPC 2006), Istanbul, Turkey, 3-8

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Reduction of fine quartz entrainment in sulfide flotation ...

Reduction of fine quartz entrainment in sulfide flotation by polymer depressants By J. Girard, H. Jang, Q. Liu, M. Ourriban, P. Pelletier and Y. Peng Publisher: Promed

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Entrainment in froth flotation: The degree of entrainment ...

2016-1-1  In this study, a factorial batch flotation experiment using a mixture of liberated chalcopyrite and two liberated gangue minerals, quartz and hematite, was performed

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Reducing quartz gangue entrainment in sulphide ore ...

Polyethylene oxide (PEO) was tested to flocculate and depress fine quartz particles in the batch flotation of artificial mixtures of chalcopyrite-quartz as well as a

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Selective aggregation of fine quartz by polyaluminum ...

2021-8-30  In this work, polyaluminum chloride (PAC) was investigated to study its effect on the reduction of quartz entrainment in the batch flotation of synthetic mixtures of

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Reducing quartz gangue entrainment in sulphide ore ...

Reducing quartz gangue entrainment in sulphide ore flotation by high molecular weight polyethylene oxide. Author links open overlay panel J. Gong a Y. Peng b A.

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(PDF) Reducing quartz gangue entrainment in sulphide ore ...

The combined use of PEO and xanthate could therefore potentially benefit the froth flotation of polymetallic sulphide ores to reject fine and ultrafine quartz

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Reduction of fine quartz entrainment in sulfide flotation ...

Reduction of fine quartz entrainment in sulfide flotation by polymer depressants By J. Girard, H. Jang, Q. Liu, M. Ourriban, P. Pelletier and Y. Peng Publisher: Promed Advertising

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Professor Yongjun Peng - School of Chemical Engineering ...

2021-9-7  Reduction of fine quartz entrainment in sulfide flotation by polymer depressants. XXIII International Mineral Processing Congress (IMPC 2006), Istanbul, Turkey, 3-8 September 2006. Istanbul, Turkey: Promed Advertising.

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Entrainment in froth flotation: The degree of entrainment ...

2016-1-1  In this study, a factorial batch flotation experiment using a mixture of liberated chalcopyrite and two liberated gangue minerals, quartz and hematite, was performed to investigate the effects of these other variables (including impeller speed, gas flow rate, froth height and the specific gravity of gangue mineral) on the degree of entrainment.

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Minerals Free Full-Text Reducing the Entrainment of ...

2021-8-3  A suitable grinding fineness and flow-sheet could potentially reduce the mechanical entrainment of gangue minerals in the flotation process of microcrystalline graphite. In this study, the suitable grinding fineness of a commercial graphite ore was estimated by mineralogy analysis and laboratory grind-flotation tests. The target grind size of this ore should be 92% passing 74 μm based

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University of Alberta The Role of High Molecular Weight ...

improve the flotation recovery of fine hydrophobic particles. However, much less effort was made to lower the mechanical/hydraulic entrainment of fine gangue mineral particles. In this study, polyethylene oxide (PEO) was used to flocculate and depress fine quartz particles. Batch flotation results indicated that the addition of low dosages

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Control of clay minerals effect in flotation. A review

2018-3-29  negligible level. However, in the case of comminution to ultra-fine sizes, a deslime process cannot be considered as a solution because of losses of valuable minerals [16]. Figure 1 shows the effect of quartz particles finer than 10 μm on flotation of different iron ores [17]. 2.2

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Some solutions to the problems in fine particle flotation ...

2. Oxidation of (sulfide) minerals that resulted in hydrophilic oxidation product coatings. The oxidised fine particles could not be recovered by these fine particle flotation technologies ...

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Entrainment of Gangue Minerals in Froth Flotation ...

2020-8-31  Entrainment is a process by which fine and ultrafine particles are transferred to the flotation froth from the top of the flotation pulp, and eventually discharge to the concentrate product, even when they are not attached to gas bubbles. Therefore, entrainment can be considered as a two-step process, one at the upper layer of the pulp to the flotation froth, and the other from froth to the ...

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Mechanism of different particle sizes of quartz activated ...

2017-2-8  To investigate effect of metallic ion activation on different particle sizes of quartz in butyl xanthate solution, six common ions (Pb2+, Cu2+, Fe3+, Fe2+, Mg2+ and Ca2+) were introduced as activators. The approaches of micro-flotation, adsorption test and zeta potential measurement were adopted to reveal the mechanism of ion activation. The results show that Pb2+, Cu2+ and Fe3+ are

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Effect of Desliming on Flotation Response of Kansanshi ...

2019-8-12  The Kansanshi mixed copper sulfide-oxide ore contains significant proportions of fine material manifesting in a variety of processing challenges. This paper presents the work which was carried out to evaluate the efficacy of desliming in improving the flotation response of the ore. Two modes of desliming were investigated, namely; sieving and elutriation after which the deslimed material was ...

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Reduction of fine quartz entrainment in sulfide flotation ...

2021-3-24  Flotation separation of fine mineral particles is hampered by high entrainment of the hydrophilic gangue minerals. No effective ways are available to reduce the fine gangue entrainment. In this study, a new approach is explored to reduce entrainment of fine quartz in chalcopyrite flotation by the use of high molecular weight polymer depressants.

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Reduction of fine quartz entrainment in sulfide flotation ...

Reduction of fine quartz entrainment in sulfide flotation by polymer depressants By J. Girard, H. Jang, Q. Liu, M. Ourriban, P. Pelletier and Y. Peng Publisher: Promed Advertising

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Reducing quartz entrainment in fine coal flotation by ...

2019-1-1  1. Introduction. Gangue entrainment is the main reason that results in the deterioration of flotation concentrate grade. The gangue entrainment problem in coal flotation has become more severe since the proportion of fine and ultrafine particles in coal flotation feed increases greatly with the popularization of mechanical mining and heavy medium cyclone separation technologies.

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Reducing quartz gangue entrainment in sulphide ore ...

2010-11-1  The batch flotation results show that the addition of PEO can reduce quartz entrainment and improve concentrate grade in chalcopyrite and sulphide ore flotation. In order to confirm that the lowering of quartz entrainment is due to the bridging flocculation by PEO, a series of photometric dispersion analyzer (PDA) measurements were performed. 3 ...

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Reducing quartz gangue entrainment in sulphide ore ...

Reducing quartz gangue entrainment in sulphide ore flotation by high molecular weight polyethylene oxide. Author links open overlay panel J. Gong a Y. Peng b A.

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(PDF) Reducing quartz gangue entrainment in sulphide ore ...

The combined use of PEO and xanthate could therefore potentially benefit the froth flotation of polymetallic sulphide ores to reject fine and ultrafine quartz and silicate gangue.Fig. 1 .Fig. 2 .12Quartz recovery as a function of water recovery in the batch flotation of pure quartz at several PEO dosages. Molecular weight of PEO is 1 million.

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Reducing quartz gangue entrainment in sulphide ore ...

Studies on the entrainment behaviour have been conducted for over 30 years. In graphite flotation, the entrainment of hydrophilic gangue exhibits detrimental effects, as it does in many other ores ...

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Reduction of mechanical entrainment by polymer

Flotation separation of fine mineral particles is hampered by high entrainment of the hydrophilic gangue minerals. No effective ways are available to reduce the fine gangue entrainment.

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Selective aggregation of fine quartz by polyaluminum ...

2021-8-30  Selective aggregation of fine quartz by polyaluminum chloride to mitigate its entrainment during fine and ultrafine mineral flotation ... was investigated to study its effect on the reduction of quartz entrainment in the batch flotation of synthetic mixtures of quartz and galena. Apart from the evaluation of quartz entrainment, micro-flotation ...

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Entrainment in froth flotation: The degree of entrainment ...

2016-1-1  In this study, a factorial batch flotation experiment using a mixture of liberated chalcopyrite and two liberated gangue minerals, quartz and hematite, was performed to investigate the effects of these other variables (including impeller speed, gas flow rate, froth height and the specific gravity of gangue mineral) on the degree of entrainment.

Get Price