high phosphorus iron ore processing
Dephosphorization of High-Phosphorus Iron Ore Using ...
High-phosphorus iron ore is traditionally dephosphorized by chemical process with inorganic acids. However, this process is not recommended nowadays because of its high cost and consequent environmental pollution. With the current tendency for development of a low-cost and eco-friendly process, deph
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Reduction Characteristics of High Phosphorus Iron Ore in ...
The isothermal reduction curves of high phosphorus iron ore briquettes reduced under different operation conditions of reduction temperatures and gas composition simulating different zones of iron blast furnace are given in Figure 2. For each single reduction curve, the rate of reduction was highest at the early stages and decreased as ...
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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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Comprehensive Utilization of Iron and Phosphorus from
2017-11-6 · An innovative process of coal-based reduction followed by magnetic separation and dephosphorization was developed to simultaneously recover iron and phosphorus from one typical high-phosphorus refractory iron ore. The experimental results showed that the iron minerals in iron ore were reduced to metallic iron during the coal-based reduction and the
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Removal of Phosphorus from High Phosphorus Iron Ores
In the process of resource utilization of high phosphorus iron ores, phosphorus should be removed first. Compared to other dephosphorization methods, selective leaching with acid has special advantages such as high dephosphorization ratio, low iron loss and so on. However, a large amount of acidic wastewater containing phosphorus was produced after acid leaching.
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Phosphorus reduction behavior of high phosphate iron ore ...
2021-7-31 · High-phosphorus iron ore resource is recognized as refractory iron ore because of its high phosphorus content and complex ore phase structure. Therefore, it is of great theoretical and practical significance to develop innovative technology to realize the efficient utilization of high-phosphorus iron ore resources. According to this, a method of phosphorus gasification
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Removal of Phosphorus From High Phosphorus Iron Ores
2011-5-1 · The P content of all samples including high phosphorus iron ore was analyzed by bismuth- phosphomolybdenum blue spectrophotometric method (JH-722N, Shanghai Qing Hua Science and Tech- nology Instrument Co Ltd China). 2 Results and Discussion 2. 1 On the condition of reaction temperature 60 'C , stirring strength 12. 76 s-l, particle size 0. 147 ...
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Smelting High Phosphorus Iron Ore by Oxygen Enriched
2011-2-20 · Smelting reduction iron making technology will solve the coke shortage and environmental pollution, which has become a major research of. Iron development. By oxygen top-blown high-phosphorus iron ore smelting reduction test, that the use of oxygen top-blown molten high phosphate smelting reduction technology is feasible, and inappropriate smelting
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Reduction Characteristics of High Phosphorus Iron Ore in ...
2019-9-17 · Reduction, Aswan Iron Ore, High Phosphorus Iron Ore, Blast Furnace How to cite this paper: Al-Kelesh, H. and Nasr, M.I. (2019) Reduction Characteristics of High Phosphorus Iron Ore in Reducing Parameters Similar to Blast Furnace Condi-tions. Journal of Minerals and Materias l Characterization and Engineering , 7, 294-306.
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Dephosphorization Treatment of High Phosphorus Iron
portant to exploit the cheap and abundant high phosphorus iron ore as a resource in iron making. The main objective of this research is to investigate the behavior of phosphorus in the low temperature carbothermic reduction process of high phosphorus iron ore and to develop a low cost dephospho-rization treatment as a value addition process. 2.
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Upgrading iron and removing phosphorus of high
2019-11-20 · complex refractory iron ore. The methods applied to processing high phosphorus oolitic iron ore are mainly magnetic roasting [18], direct reduction [19], deep reduction, and suspension roasting, along with others [20, 21]. However, emphasize by segregation roasting on high phosphorus oolitic iron ore was rarely investigated.
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Removal of Phosphorus from High Phosphorus Iron Ores
In the process of resource utilization of high phosphorus iron ores, phosphorus should be removed first. Compared to other dephosphorization methods, selective leaching with acid has special advantages such as high dephosphorization ratio, low iron loss and so on. However, a large amount of acidic wastewater containing phosphorus was produced after acid leaching.
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Phosphorus reduction behavior of high phosphate iron ore ...
2021-7-31 · High-phosphorus iron ore resource is recognized as refractory iron ore because of its high phosphorus content and complex ore phase structure. Therefore, it is of great theoretical and practical significance to develop innovative technology to realize the efficient utilization of high-phosphorus iron ore resources. According to this, a method of phosphorus gasification
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Phosphorus Removal of Oolitic High Phosphorus Iron Ore ...
Abstract. Abstract. A new method to process the oolitic high phosphorus iron ore for phosphorus removal has been proposed in this research. It is an integration of direct reduction and melting separation with carbon-containing pellets prepared using biomass char. Experiments of direct reduction were preceded using a tubular furnace and three parameters were investigated and
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Reduction Characteristics of High Phosphorus Iron Ore in ...
2019-9-17 · Reduction, Aswan Iron Ore, High Phosphorus Iron Ore, Blast Furnace How to cite this paper: Al-Kelesh, H. and Nasr, M.I. (2019) Reduction Characteristics of High Phosphorus Iron Ore in Reducing Parameters Similar to Blast Furnace Condi-tions. Journal of Minerals and Materias l Characterization and Engineering , 7, 294-306.
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Removal of Phosphorus From High Phosphorus Iron Ores
2011-5-1 · The selective HCl leaching method was used to remove phosphorus from high phosphorus iron ores. The hydroxyapatite in high phosphorus iron ores was converted into soluble phosphate during the process of HCl leaching. The effects of reaction time, particle size, hydrochloric acid concentration, reaction temperature, liquid-solid ratio and stirring strength on
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Processes for phosphorus removal from iron ore - a review
Iron ore of high phosphorus content coexists with other minerals in the form of apatite or fluorapatite. Phosphorus is spread on the edge of mineral particles of iron oxide and embedded in quartz or carbonate minerals and a small amount is present in the iron mineral grid ( Xia et al. , 2011 XIA, W., REN, Z., GAOY.
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Synchronous Upgrading Iron and Phosphorus Removal
2016-6-14 · high-phosphorus oolitic hematite ore. The results showed that a magnetic concentrate with total iron grade of 92.7% and phosphorus content of 0.09% was produced from an oolitic hematite ore containing 48.96% iron and 1.61% phosphorus, where reduction of the iron ore blended with excessive
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Smelting High Phosphorus Iron Ore by Oxygen Enriched
2011-2-20 · Smelting reduction iron making technology will solve the coke shortage and environmental pollution, which has become a major research of. Iron development. By oxygen top-blown high-phosphorus iron ore smelting reduction test, that the use of oxygen top-blown molten high phosphate smelting reduction technology is feasible, and inappropriate smelting
Read More
Technological Challenges of Phosphorus Removal in High ...
2019-11-29 · 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,
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Optimized Steelmaking from High Phosphorus Ores By
The ore is mainly of the apatitic iron ore type with 5865 5 % iron and 0.5-.2 % phosphorus. The iron mineral is largely magnetite and the ores are in general easily concentrated, especially the coarse-grained Malmberget ore. As the marketability of high phos-phorus ore has declined these mines have gradually
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Upgrading iron and removing phosphorus of high
2019-11-20 · complex refractory iron ore. The methods applied to processing high phosphorus oolitic iron ore are mainly magnetic roasting [18], direct reduction [19], deep reduction, and suspension roasting, along with others [20, 21]. However, emphasize by segregation roasting on high phosphorus oolitic iron ore was rarely investigated.
Read More
Removal of Phosphorus from High Phosphorus Iron Ores
In the process of resource utilization of high phosphorus iron ores, phosphorus should be removed first. Compared to other dephosphorization methods, selective leaching with acid has special advantages such as high dephosphorization ratio, low iron loss and so on. However, a large amount of acidic wastewater containing phosphorus was produced after acid leaching.
Read More
Reduction Characteristics of High Phosphorus Iron Ore in ...
2019-9-17 · Reduction, Aswan Iron Ore, High Phosphorus Iron Ore, Blast Furnace How to cite this paper: Al-Kelesh, H. and Nasr, M.I. (2019) Reduction Characteristics of High Phosphorus Iron Ore in Reducing Parameters Similar to Blast Furnace Condi-tions. Journal of Minerals and Materias l Characterization and Engineering , 7, 294-306.
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Processes for phosphorus removal from iron ore - a review
Iron ore of high phosphorus content coexists with other minerals in the form of apatite or fluorapatite. Phosphorus is spread on the edge of mineral particles of iron oxide and embedded in quartz or carbonate minerals and a small amount is present in the iron mineral grid ( Xia et al. , 2011 XIA, W., REN, Z., GAOY.
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Gaseous reduction of hematite iron ore containing high ...
Most of the phosphorus compounds were not reduced in the low temperature reduction process of high phosphorus iron ore and remained as oxides in
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Technological Challenges of Phosphorus Removal in High ...
2019-11-29 · 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,
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Phosphorus Removal from Goethitic Iron Ore with a Low ...
The phosphorus in high-phosphorus (>0.1% P) iron ores from the Pilbara area of Western Australia is mainly associated with the goethite fraction of the ore. Physical separation methods and simple leaching processes do not remove sufficient phosphorus from the ores to meet market specifications of 0.075% P. Processing to disrupt the goethite ...
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Slag/Metal Separation from H2-Reduced High
ore.16) The process in which iron oxide was reduced by H 2, CO or their mixture under a relatively low temperature, can effectively avoid the reduction of P-containing gangue under the premise of high reduction degree of iron ore. Furthermore, the dephosphorization for high-phosphorus oolitic hematite ore can be significantly enhanced by melt
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REMOVAL OF PHOSPHORUS THROUGH ROASTING OF
2014-1-18 · REMOVAL OF PHOSPHORUS THROUGH ROASTING OF OOLITIC IRON ORE WITH ALKALINE EARTH ADDITIVES . K Ionkov. 1, S Gaydardzhiev. 2, D Bastin. 3, A Correa de Araujo. 4. and M Lacoste. 5. ABSTRACT . The present study is devoted to improvement of the leaching efficiency during phosphorous removal from high phosphorous gravity-magnetic
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