ji study on dephosphorization technology for high phosphorus

Effects of calcium ferrite slag on dephosphorization of .

The calcium ferrite pellets developed in the present study were thus used in the earlier stage of converter process as the dephosphorizing agent to solve the problems. For a better interpretation of the experimental results, the rate of dephosphorization, ηp, and phosphorus distribution ratio between the slag and metal, Lp, defined by Eqs.
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Removal of phosphorus from iron ores by chemical leaching .

JI Jun. Study on dephosphorization the chnology for high-phosphorus iron ore[J]. Mining & Metallurgy, 2003, 12(2): 33–37. . An integrated process for the treatment of apatite obtained from dephosphorization of iron ore[J]. J Chem Tech Biotechnol, 1990, 47: 47–60. Google Scholar.
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TECHNOLOGY OF PRODUCTION OF STEEL IN CONVERTERS

Study support to the subject TECHNOLOGY OF PRODUCTION OF STEEL IN CONVERTERS is primarily intended for students of combined studies. In the combined form of study, there is a much smaller proportion of direct contact teaching, which makes this study much more difficult for students. Our study support to the subject TECHNOLOGY
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Reducing Phosphorus to Curb Lake Eutrophication is a .

As human populations increase and land-use intensifies, toxic and unsightly nuisance blooms of algae are becoming larger and more frequent in freshwater lakes. In most cases, the blooms are predominantly blue-green algae (Cyanobacteria), which are favored by low ratios of nitrogen to phosphorus. In the past half century, aquatic scientists have devoted much effort to understanding the causes .
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Reducing Phosphorus to Curb Lake Eutrophication is a .

Here we review the evidence, finding that numerous long-term studies of lake ecosystems in Europe and North America show that controlling algal blooms and other symptoms of eutrophication depends on reducing inputs of a single nutrient: phosphorus.
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DEPHOSPHORIZATION KINETICS FOR REACTION OF .

dephosphorization has been studied recently by researchers in the author's laboratory and others. Therefore, the influence of decarburization on driving force for dephosphorization and mass transfer of phosphorus in the metal phase was the main focus of this study.
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Effect of MgO and Al2O3 variations in oxygen steelmaking .

Investigations of different slag samples, based on optical, SEM, EPMA and X-ray studies, reveal the effect of MgO and Al 2 O 3 on slag morphology and phosphorus distribution in different phases. It is important to consider the phosphorus distribution ratio in the solid and liquid part of the slag.
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Awards&Prizes

Under the conditions of medium and high phosphorus hot metal, know-hows regarding slag forming and dephosphorization were worked out and correlation between oxygen supply strength, temperature, target control and gas in steel liquid was identified. This technology features fewer number of lances required for bottom blowing, greater oxygen .
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INDUSTRIAL ANDLABORATORYEXPERIMENTSREGARDING THE .

The samples, weighing 1 kg, were obtain from cast charges that had a high phosphorus content (Pmax=0.11%, according to the Romanian standards, Table 1). With the first sample, we tried a dephosphorization with the slag elimination at melting. In the .
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DEVELOPMENT OF A PROCESS FOR DEPHOSPHORISATION OF HIGH .

The low phosphorus manganese ores are deplet-ing fast and ferromanganese manufacturers will have no option but to use medium and low grade ores having high phosphorus content resulting in high phosphorus in the product. A systematic study was taken up at NML to solve this problem. Initially, a thermodynamic analysis was carried out for which Ba .
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US10494271B2 - Ecological method for denitrification and .

The present invention provides an ecological method for denitrification and phosphorus removal in wastewater treatment process, which relates to the field of sewage treatment technology, The present invention provides a nitrogen and phosphorus removal system, comprising a nitrogen and phosphorus removal unit and a sulfate adsorption unit.
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TECHNOLOGY OF PRODUCTION OF STEEL IN CONVERTERS

Study support to the subject TECHNOLOGY OF PRODUCTION OF STEEL IN CONVERTERS is primarily intended for students of combined studies. In the combined form of study, there is a much smaller proportion of direct contact teaching, which makes this study much more difficult for students. Our study support to the subject TECHNOLOGY
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Journals On Dephosphorization Of Iron Ore

Ji Jun Study On Dephosphorization Technology For . Ji jun study on dephosphorization technology for h. Phosphorus Removal of High Phosphorus Iron Ore by Gas . JI Jun. Study on Dephosphorization Technology for High-Phos- phorus Iron Ore . Mining Metallurgy, 2003, 12(2) 33 (in Chinese). Online Service. Get Price; Vol 4, No 4 (2013) Grpjournals.net
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Modern Hot Metal Desulfurization - UK Essays

Modern Hot Metal Desulfurization And Dephosphorization Technologies Introduction. The purpose of phosphorus and sulfur removal is to decrease the concentration of these particles along with the undesired inclusions (oxides, borides, nitrides, carbides, and chlorides) to accomplish the final product quality requirements [5].
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Carbothermic Reduction of Phosphoric Acid Extracted from .

To meet the depletion of phosphate ore, the proposed process in this study to produce yellow phosphorus by carbothermic reduction of H 3 PO 4 that are extracted from dephosphorization slags will be one of the effective and economical solutions.
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"DEPHOSPHORIZATION OF GOETHITE ORE" by Long Zhang

With the depletion of high-grade and low phosphorus iron ore reserves, the extensive goethite ores containing high phosphorus become more attractive. However, there is a lack of effective and economic technologies for removing phosphorus from goethite ore. The current utilization of goethite ore to date has been to, first reducing the phosphorus to low of a level as practical .
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Thickness-controlled black phosphorus tunnel field-effect .

Jan 27, 2020 · Tunnel field-effect transistors with spatially varying layer thickness in black phosphorus enable high performance with a record-low subthreshold swing.
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Model for Evaluation of the Concentration of Dissolved .

Model for Evaluation of the Concentration of Dissolved Phosphorus during Leaching of Iron Oxide Ore in Oxalic Acid Solution . dephosphorization. High activity of CaO; . presented their results of a study on the use of Aspergillus niger and their cultural filtrates for .
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Asahi Kasei Announces Development of World's Fastest .

Sep 27, 2007 · Tokyo, Japan, Sept 26, 2007 - (JCN Newswire) - Asahi Kasei Chemicals, the core operating company for chemical-related operations of the Asahi Kasei Group (TSE: 3407), has developed the world's fastest phosphorus adsorbent, together with an efficient water treatment system using this adsorbent for the selective, high-level removal and high-purity recovery of phosphorus from treated .
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Phosphorus and Your CKD Diet | National Kidney Foundation

High phosphorus levels can cause damage to your body. Extra phosphorus causes body changes that pull calcium out of your bones, making them weak. High phosphorus and calcium levels also lead to dangerous calcium deposits in blood vessels, lungs, eyes, and heart. Over time this can lead to increased risk of heart attack, stroke or death.
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Froth Flotation of Iron Ores - sapub

With the depleting reserves of high-grade iron ore in the world, froth flotation has become increasingly important to process intermediate- and low-grade iron ore in an attempt to meet the rapidly growing demand on the international market. In over half a century's practice in the iron ore industry, froth flotation has been established as an efficient method to remove impurities from iron ore.
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Parameters Affecting Dephosphorization of Stainless Steel

A literary study has been made to find parameters affecting dephosphorization of stainless steel. Ways to lower phosphorus content without major loss of chromium in order to decrease the production costs of AB's stainless steel. The study was conducted with respect to oxidizing dephosphorization
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Processing Mineralogy Characteristics and Utilization .

Based on the problems of utilization technology of oolitic hematite both at home and abroad in recent decades, this paper introduces the characteristics of oolitic hematite, and gravity concentration desliming-reverse flotation process is used for treating the Ningxiang-type oolitic hematite. The process is simple in flowsheet, easy in operation, lower cost, high adaptability, .
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Shiqiang Zou - Postdoctoral Scholar - Stanford University .

About. Shiqiang (Nick) earned his Ph.D. degree at ia Tech (Blacksburg) focusing on nutrient-energy-water (NEW) nexus and development of sustainable technologies with minimized footprint.
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Elias Matinde, (Pr. Eng.) - Head : Research & Development .

My PhD study was on the value addition processing of high phosphorus iron ores, focusing on the thermodynamics and process development of novel and value addition processes for the production of high grade direct reduced iron products from low grade iron ore resources.
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Phosphorus and Your CKD Diet | National Kidney Foundation

High phosphorus levels can cause damage to your body. Extra phosphorus causes body changes that pull calcium out of your bones, making them weak. High phosphorus and calcium levels also lead to dangerous calcium deposits in blood vessels, lungs, eyes, and heart. Over time this can lead to increased risk of heart attack, stroke or death.
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Strengthening iron enrichment and dephosphorization of .

Abstract: The efficient development and utilization of high-phosphorus oolitic hematite is of great strategic significance for the sustainable supply of iron-ore resources in China.In this paper, the mechanism of high-temperature pretreatment for enhancing the effect of iron enrichment and dephosphorization in the magnetization roasting–leaching process was studied by X-ray diffraction .
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Mass transfer of phosphorus in high-phosphorus hot-metal .

Mass transfer of phosphorus in high-phosphorus hot-metal refining was investigated using CaO-Fet O-SiO2 slags at 1623 K. Based on a two-film theory kinetic model and experimental results, it was .
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Phosphorus removal performance and biological .

In this study, IVCWs planted with different plants were employed to evaluate total phosphorus (TP) treatment performance under different hydraulic retention times (HRTs), in summer and autumn. The results showed that the systems planted with Canna generalis showed the highest TP removal efficiency (77%) under a three-day HRT in autumn.
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Effect of Na2CO3 and CaCO3 on coreduction . - SpringerLink

Jun 29, 2017 · Abstract. Iron was recovered from blast furnace dust and high-phosphorus oolitic hematite in the presence of Na 2 CO 3 and CaCO 3 additives. The functions of Na 2 CO 3 and CaCO 3 during the coreduction roasting process were investigated by XRD and SEM-EDS analyses. Results indicate that these additives not only hinder the reduction of fluorapatite, CaCO 3 also decreases the .
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