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iron ore phosphorus removal
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Removal of Phosphorus From High Phosphorus Iron Ores by ...
2011-5-1 In order to effectively remove the phosphorus from high phosphorus iron ores, while reduce the amount of acid and the iron losses, phosphorus will be removed in the form of soluble phosphate salts by selective hydrochloric acid leaching in this research.
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Phosphorus Removal of High Phosphorus Iron Ore by Gas ...
2010-9-1 A new method (gas-based separation plus melt separation) has been proposed to remove phosphorus of the high phosphorus iron ore which was 1.25% of phosphorus content and 50.0% of iron content. HSC chemistry package and the coexistence theory of slag structure were adopted for theoretical analysis.
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Removal of phosphorus from iron ores by chemical leaching ...
2006-12-1 The results show that phosphorus occurring as apatite phase could be removed by alkali-leaching, but those occurring in the iron phase could not. Sulfuric acid is the most effective among the three kinds of acid. 91.61% phosphorus removal was attained with 1% sulfuric acid after leaching for 20 min at room temperature.
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Improvement of phosphorus removal from iron ore using ...
2015-12-17 The possibility of phosphorus removal from high phosphorus iron ore using combined microwave pretreatment and ultrasonic treatment was studied. The results indicated that microwave pretreatment significantly increases the efficiency of ultrasonic disintegration and the removal of gangues.
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Processes for phosphorus removal from iron ore - a review
Phosphorus can be removed from iron ore by very different routes of treatment. The genesis of the reserve, the mineralogy, the cost and sustainability define the technol ogy to be applied. The articles surveyed cite removal by physical processes (flotation and selective agglomeration), chemical (leaching), thermal and bioleaching processes.
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[PDF] Processes for phosphorus removal from iron ore - a ...
The articles surveyed cite removal by physical processes (flotation and selective agglomeration), chemical (leaching), thermal and bioleaching processes. Removal results of above 90% and less than 0.05% residual phosphorus are noticed, which is the maximum value required in most of the products generated in the processing of iron ore.
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REMOVAL OF PHOSPHORUS THROUGH ROASTING OF
2014-1-18 concentrate with sulfur. An efficient removal of phosphorus down to 0.05 % from high P iron ores is reported by Forssberg and Adolfson (1981). In this study P was also present mainly as apatite and its leaching was carried out with 2M HCl and 2 – 6 M HNO. 3 . at temperatures between 10 and 60°C and duration of up to 30 hours.
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Improvement of phosphorus removal from iron ore using ...
Most of the past studies examined the effects of ultrasonic treatment on the removal of phosphorus, silica and alumina minerals from iron ores. In the present work, the effect of combined microwave pretreatment and ultrasonic treatment on the efficiency of disintegration and removal of phosphorus and other gangue minerals associated with iron ores has been studied.
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Technological Challenges of Phosphorus Removal in High ...
Due to the very high affinity of iron oxides and hydroxides for phosphorus, a phenomenon much exploited in environmental chemistry and waste water management to remove phosphorus from polluted water, phosphorus removal from iron ore is not a trivial process, particularly when the phosphorus
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Factorial Analysis of Phosphorus Removal during ...
2014-11-30 Hydrometallurgy baseddephosphorization of iron ore as observed from experiment and model prediction [13] has shown that phosphorus - removal during leachingusing oxalic acid solution, is highly dependent on the final pH of the leaching solution (which varies time and other factor such ), mass-input of the iron oxide ore and ore mineralogy etc.
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Removal of Phosphorus from High-phosphorus Iron Ore with ...
Removal of Phosphorus from High-phosphorus Iron Ore with Preliminary Reduction Treatment and Physical Concentration Hironari KUBO,1)* Nobuhiro MARUOKA2) and Yoshimasa SATO3) 1) Faculty of Engineering, Fukuoka Institute of Technology, 3-30-1 Wajiro-higashi, Higashi-ku,
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[PDF] Processes for phosphorus removal from iron ore - a ...
The articles surveyed cite removal by physical processes (flotation and selective agglomeration), chemical (leaching), thermal and bioleaching processes. Removal results of above 90% and less than 0.05% residual phosphorus are noticed, which is the maximum value required in most of the products generated in the processing of iron ore.
Read More
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[PDF] Improvement of phosphorus removal from iron ore ...
These intergranular fractures improved liberation of iron ore, and accelerated ultrasonic disintegration and removal of phosphorus and gangue minerals from oolitic hematite. The results indicated that microwave pretreatment increases the efficiency of ultrasonic disintegration and removal of particles by about 20% compared to untreated sample.
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Removal of phosphorus-rich phase from high-phosphorous ...
2016-7-9 A new approach of removing the phosphorus-rich phase from high-phosphorous iron ore by melt separation at 1573 K in a super- gravity field was investigated. The iron-slag separation by super-gravity resulted in phosphorus being effectively removed from the iron-rich phase and concentrated as a phosphorus-rich phase at a temperature below the melting point of iron.
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Phosphorus removal from Nigeria’s Agbaja iron ore by ...
2015-9-19 Phosphorus is an unwanted component of iron ore. Its removal from Nigeria’s Agbaja iron ore by solubilization with Eurotium herbariorum isolated from the ore samples has been achieved using the submerged culture technique. Result obtained shows 61.48% removal of P in 10 weeks through the
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Technological Challenges of Phosphorus Removal in High ...
With the present rates of iron ore consumption, currently unusable, high-phosphorus iron ore deposits are likely to be the iron ores of the future as higher-grade iron ore reserves are depleted. Consequently, the design and timely development of environmentally-benign processes for the simultaneous beneficiation of high-phosphorus iron ores and phosphorus recovery, currently a technological ...
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EconPapers: Technological Challenges of Phosphorus Removal ...
2021-1-30 Abstract: With the present rates of iron ore consumption, currently unusable, high-phosphorus iron ore deposits are likely to be the iron ores of the future as higher-grade iron ore reserves are depleted. Consequently, the design and timely development of environmentally-benign processes for the simultaneous beneficiation of high-phosphorus ...
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Factorial Analysis of Phosphorus Removal during ...
2014-11-30 Hydrometallurgy baseddephosphorization of iron ore as observed from experiment and model prediction [13] has shown that phosphorus - removal during leachingusing oxalic acid solution, is highly dependent on the final pH of the leaching solution (which varies time and other factor such ), mass-input of the iron oxide ore and ore mineralogy etc.
Read More
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Predictability of Phosphorus Removal Based on ...
2020-8-21 This paper presents the predictability of phosphorus removal based on simultaneously removed sulphur and mass-input of iron ore leached in potassium hydroxide. The reaction vessel containing the solution and ore was heated at a temperature of 600°C for 10minutes. The model; P = 61.8477 x 10 -3 μ - 2.27S shows that the predicted concentration of removed phosphorus, is
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REMOVAL OF SULFUR AND PHOSPHOROUS FROM IRON
2016-5-17 The current study was focused on the removal of sulfur from iron ore concentrate using chemical leaching technique. Magnetite iron ore concentrate was chosen for this purpose. The results obtained from the study showed that more than 90% of the total sulfur content was removed from the iron ore concentrate by the chemical leaching. Effects of ...
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[PDF] Improvement of phosphorus removal from iron ore ...
These intergranular fractures improved liberation of iron ore, and accelerated ultrasonic disintegration and removal of phosphorus and gangue minerals from oolitic hematite. The results indicated that microwave pretreatment increases the efficiency of ultrasonic disintegration and removal of particles by about 20% compared to untreated sample.
Read More
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Phosphorus removal from Nigeria’s Agbaja iron ore by ...
2015-9-19 Phosphorus is an unwanted component of iron ore. Its removal from Nigeria’s Agbaja iron ore by solubilization with Eurotium herbariorum isolated from the ore samples has been achieved using the submerged culture technique. Result obtained shows 61.48% removal of P in 10 weeks through the
Read More
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Technological Challenges of Phosphorus Removal in High ...
With the present rates of iron ore consumption, currently unusable, high-phosphorus iron ore deposits are likely to be the iron ores of the future as higher-grade iron ore reserves are depleted. Consequently, the design and timely development of environmentally-benign processes for the simultaneous beneficiation of high-phosphorus iron ores and phosphorus recovery, currently a technological ...
Read More
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EconPapers: Technological Challenges of Phosphorus Removal ...
2021-1-30 Abstract: With the present rates of iron ore consumption, currently unusable, high-phosphorus iron ore deposits are likely to be the iron ores of the future as higher-grade iron ore reserves are depleted. Consequently, the design and timely development of environmentally-benign processes for the simultaneous beneficiation of high-phosphorus ...
Read More
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Phosphorus Removal and Iron Recovery from High-Phosphorus ...
2018-6-2 (2016). Phosphorus Removal and Iron Recovery from High-Phosphorus Hematite Using Direct Reduction Followed by Melting Separation. Mineral Processing and Extractive Metallurgy Review: Vol. 37, No. 4, pp. 236-245.
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Predictability of Phosphorus Removal Based on ...
2020-8-21 This paper presents the predictability of phosphorus removal based on simultaneously removed sulphur and mass-input of iron ore leached in potassium hydroxide. The reaction vessel containing the solution and ore was heated at a temperature of 600°C for 10minutes. The model; P = 61.8477 x 10 -3 μ - 2.27S shows that the predicted concentration of removed phosphorus, is
Read More
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Mechanism of phosphorus removal in beneficiation of
2012-11-28 The conventional beneficiation process of iron ore is found to be less effective in phosphorus removal of high phosphorus oolitic hematite, which is one of the most refractory ores in China. One ninth of China’s iron ore resources are oolitic hematite, in which 30−40 billion tons are high phosphorus oolitic hematite. Therefore, the
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Synchronous Upgrading Iron and Phosphorus Removal from ...
2016-5-24 Synchronous Upgrading Iron and Phosphorus Removal from High Phosphorus Oolitic Hematite Ore by High Temperature Flash Metals ( IF 2.117) Pub Date : 2016-05-24, DOI: 10.3390 Deqing Zhu, Zhengqi Guo, Jian Pan, Feng Zhang
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Phosphorus Removal Capability of Aspergillus Terreus
2013-12-24 Comparative phosphorus removal capability of a microbial fungus-Aspergillus terreus and a bacterium-Bacillus subtilis from Nigeria’s Agbaja iron ore was investigated. Manual crushing and sieving of the iron ore in Shital Test Kits produced 5 grain size distributions namely:
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