flotation desulfurization

The effect of flotation desulfurization on the trace ...

2021-6-1  The flotation desulfurization experiments were carried out on 8 composite samples collected from the final tailings of Sarcheshmeh concentrator plant. Samples were collected during 2 months based on the weekly composite sampling plan. The sampling location was the discharging point of the high-rate sedimentation thickeners, where tailings were ...

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The Desulfurization of Magnetite Ore by Flotation with a ...

Figure 6 shows the flotation response of magnetite recovery and desulfurization ratio as a function of pH with mixed collectors NaBX/(BX) 2 (α (BX) 2 = 40 %). The results

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The Desulfurization of Magnetite Ore by Flotation with a ...

2019-8-15  The desulfurization ratio of flotation process was calculated by the following equation: Ls F @®> 5 > 4 (2) where D is desulfurization ratio of flotation process, is yield of concentrate, 1 is the S grade of concentrate, and 0 is the S grade of raw ore. Figure 1. Flow sheet of flotation tests.

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Froth flotation pretreatment for enhancing

2008-4-28  Keywords: Coal, Demineralization, Desulfurization, Froth flotation, Leaching, Sodium hydroxide, Sulfur Introduction High quality coal reserves world over are gradually depleting and, therefore, there is a growing interest to utilize the inferior grades of coal with high ash and sulfur 1-7. Sulfur in coal is broadly classified as organic

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Desulfurization Process of High-Sulfur Coal by Full-Flotation

The coal sample from the Shijiazhai mine located in the east of Yunnan province of China, is characterized with high ash and sulfur content which are 64.90% and 8.66% respectively. Analysis results indicate that coal and pyrite are the valuable minerals that can be recycled from the crude ore. According to the properties of the ore, a full-flotation flowsheet is proposed to process the ore.

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Ultrasound-electrochemistry enhanced flotation and ...

2021-3-1  The desulfurization rate is calculated according to the following formula (1): (1) Desulfurization rate = 100 Sy - γ j × S j / 100 S y × 100 % where S y is the sulfur content of raw coal; S j is sulfur content of cleaned coal; γ j is the yield of cleaned coal. The flotation process and conditions are shown in Fig. 2.

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Clean desulfurization of sulfur–rich tungsten concentrates ...

2020-1-20  Reverse flotation desulfurization is beneficial to decision makers in regulating the quality and type of beneficiation products to satisfy the market demands and environmental regulations. Thus, reverse flotation is a clean desulfurizing method, which can be utilized by managers as a feasible technology to overcome the uncertainties of the ...

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Environmental desulfurization of mine wastes using

The environmental desulfurization of tailings is one approach that has gained much popularity in the last two decades. It was defined as an alternative, integrated tailings management technique that can be accomplished through froth flotation (Benzaazoua et al., 2000, Demers et al., 2009).This method aims to remove sulfide and sulfosalt minerals (flotation concentrate) from gangue minerals (e ...

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Desulfurization of mezino coal using combination of ...

2006-5-1  In this research, the combination of flotation and leaching methods were used for the desulfurization of mezino coal. First the inorganic sulfur content of the sample was reduced to the maximum extent by froth flotation and then the flotation concentration was leached to

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Demineralization and desulfurization of coals via column ...

2002-5-1  The flotation process can be more effective in desulfurization of the coal when the majority of the sulfur content of the coal is pyritic sulfur. In addition, it was believed that the higher percent of pyritic sulfur in the total sulfur content of the coal prompted the production of lower sulfur content clean coal, and the column flotation ...

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Flotation Desulfurization of Acidified High-Sulfur Bauxite ...

2021-2-24  The desulfurization of high-sulfur bauxite via flotation is more difficult than conventional sulphide, since the finely disseminated sulphide in the high-sulfur bauxite can lead to excessive particle entrainment, increase of froth, and low separation efficiency.

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The Effect of Regulators on Flotation Desulfurization of ...

2021-1-13  Flotation desulfurization [11] can remove the sulfur from the bauxite before entering the alumina refining process and negatively impacting the efficiency and economics of producing alumina from high-sulfur bauxite. Pyrite is the main sulfide mineral in high-sulfur bauxite [12], which is easily floated by collectors such as xanthate, while ...

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Flotation Desulfurization of High-Sulfur Bauxite with ...

The desulfurization of high-sulfur diasporic bauxite （from China） with flotation process and ethyl thio carbamate as collector was studied, and the effects of flotation time, pulp density, pH value and particle size of ores were examined. The experimental results indicate that the sulfur in bauxite was successfully decreased through flotation.

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Desulfurization Experimental Study on Flotation for High ...

The optimized flotation condition determined by orthogonal experiments was as follow: pulp density for 60 g/L, kerosene dosage of 1.4 kg/t, 2 # oil consumption of 100 g/t. In this case, total sulfur content reduced to 2.19%, the total desulfurization rate and the inorganic desulfurization rate

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The Desulfurization of Magnetite Ore by Flotation with a ...

2019-8-15  The desulfurization ratio of flotation process was calculated by the following equation: Ls F @®> 5 > 4 (2) where D is desulfurization ratio of flotation process, is yield of concentrate, 1 is the S grade of concentrate, and 0 is the S grade of raw ore. Figure 1. Flow sheet of flotation tests.

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The Desulfurization of Magnetite Ore by Flotation with a ...

Figure 6 shows the flotation response of magnetite recovery and desulfurization ratio as a function of pH with mixed collectors NaBX/(BX) 2 (α (BX) 2 = 40 %). The results clearly indicate that, with mixed collector, the recovery of magnetite increased from 96.66% to

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Froth flotation pretreatment for enhancing

SAYDUT et al: FROTH FLOTATION FOR DESULFURIZATION OF COAL WITH NaOH 73 were run at 900 rpm with 5 min of air delivered to the flotation cell from a

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Desulfurization Process of High-Sulfur Coal by Full-Flotation

The coal sample from the Shijiazhai mine located in the east of Yunnan province of China, is characterized with high ash and sulfur content which are 64.90% and 8.66% respectively. Analysis results indicate that coal and pyrite are the valuable minerals that can be recycled from the crude ore. According to the properties of the ore, a full-flotation flowsheet is proposed to process the ore.

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A Study on Recycling Fine Wolframite Slime by “Flotation ...

2016-10-27  A. Fine Wolframite Slime Flotation Desulfurization Experiment and Results Since the oxide ore flotation collector can easily collect sulfide ore, and fine slime ore only contains 0.76% of sulfur, thereby, sulfide ore will not only increase reagents consumption

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Synchronous Desulfurization and Desilication of Low

The synchronous desulfurization and desilication of low-grade and high-sulfur bauxite through reverse flotation processes were studied using modified starch as depressants in this work. The effects of depressant dosage, modified depressant dosage and collector

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The Effect of Regulators on Flotation Desulfurization of ...

2021-1-13  Flotation desulfurization [11] can remove the sulfur from the bauxite before entering the alumina refining process and negatively impacting the efficiency and economics of producing alumina from high-sulfur bauxite. Pyrite is the main sulfide mineral in high-sulfur bauxite [12], which is easily floated by collectors such as xanthate, while ...

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Flotation Desulfurization of High-Sulfur Bauxite with ...

The desulfurization of high-sulfur diasporic bauxite （from China） with flotation process and ethyl thio carbamate as collector was studied, and the effects of flotation time, pulp density, pH value and particle size of ores were examined. The experimental results indicate that the sulfur in bauxite was successfully decreased through flotation.

Read More

Desulfurization Experimental Study on Flotation for High ...

The optimized flotation condition determined by orthogonal experiments was as follow: pulp density for 60 g/L, kerosene dosage of 1.4 kg/t, 2 # oil consumption of 100 g/t. In this case, total sulfur content reduced to 2.19%, the total desulfurization rate and the inorganic desulfurization rate

Read More

Froth flotation pretreatment for enhancing

SAYDUT et al: FROTH FLOTATION FOR DESULFURIZATION OF COAL WITH NaOH 73 were run at 900 rpm with 5 min of air delivered to the flotation cell from a

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The Desulfurization of Magnetite Ore by Flotation with a ...

2019-8-15  The desulfurization ratio of flotation process was calculated by the following equation: Ls F @®> 5 > 4 (2) where D is desulfurization ratio of flotation process, is yield of concentrate, 1 is the S grade of concentrate, and 0 is the S grade of raw ore. Figure 1. Flow sheet of flotation tests.

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The Desulfurization of Magnetite Ore by Flotation with a ...

2016-5-27  The contamination of sulfur emanating from pyrrhotite in magnetite concentrates has been a problem in iron ore processing. This study utilized froth flotation to float pyrrhotite away from magnetite using collectors of xanthate and dixanthogen. It

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Desulfurization Process of High-Sulfur Coal by Full-Flotation

The coal sample from the Shijiazhai mine located in the east of Yunnan province of China, is characterized with high ash and sulfur content which are 64.90% and 8.66% respectively. Analysis results indicate that coal and pyrite are the valuable minerals that can be recycled from the crude ore. According to the properties of the ore, a full-flotation flowsheet is proposed to process the ore.

Read More

A Study on Recycling Fine Wolframite Slime by “Flotation ...

2016-10-27  A. Fine Wolframite Slime Flotation Desulfurization Experiment and Results Since the oxide ore flotation collector can easily collect sulfide ore, and fine slime ore only contains 0.76% of sulfur, thereby, sulfide ore will not only increase reagents consumption

Read More

(PDF) Desulfurization and Parametric Study of Bituminous ...

Desulfurization and Parametric Study of Bituminous Coal via Froth Flotation Technique Hassan Anwar Saleemi and Muhammad Saeed Ullah 243 (Figure.2.1 Effect of separation time on sulfur removal )

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2020-Clean desulfurization of sulfurerich tungsten ...

2021-3-2  Clean desulfurization Sulfur Reverse flotation Tungsten concentrate Industrial application 附件【 2020-Clean desulfurization of sulfur–rich tungsten concentrates by reverse flotation.pdf 】 已下载 次 【 关闭窗口 】 版权所有：中南大学胡岳华教授课题组 ...

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