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phosphorus removal from iron concentrate

phosphorus removal from iron concentrate

REMOVAL OF PHOSPHORUS THROUGH ROASTING OF

2014-1-18  Maximum removal of phosphorus at maximum iron recovery could be achieved by “coarse” grinding of the concentrate, followed by dry HIMS for removal of gangue minerals, roasting at the optimally found conditions and leaching with 1 M hydrochloric acid.

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Amenability for processing of oolitic iron ore

2013-6-1  The removal of phosphorus from iron ore using a low temperature heat treatment with additives, followed by alkaline or water leaching, has been tested by Fisher-White et al., (2009), with phosphorus being lowered from 0.145–0.075%.

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phosphorus removal from iron concentrate -

Synchronous Upgrading Iron and Phosphorus Removal from , high-phosphorus oolitic hematite ore The results showed that a magnetic concentrate with total iron grade of 927% and phosphorus content of 009% was produced from an oolitic hematite ore containing 4896% iron and 161% phosphorus, where reduction of the iron ore blended with excessive

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Removal of phosphorus from iron ores by chemical

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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The removal of phosphorus from iron ore by leaching

1989-5-1  A hydrometallurgical method for the removal of phosphorus from iron ore is presented. The apatite content (∼ 1%) of a Swedish ore is removed (> 95%) by leaching the ore with nitric acid. The iron loss is less than 0.05% while the alkali metal content is greatly reduced (> 60%).

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Processes for phosphorus removal from iron ore - a

The composition of iron concentrate obtained: 64.12% Fe and 0.07% phosphorus with an iron recovery of 96.83%, and a rate of dephosphorization of 74.08%. Figure 2 shows a flowsheet for concentration by reductive sintering and removal of phosphorus.

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Synchronous Upgrading Iron and Phosphorus Removal

2016-6-14  confirmed that sodium sulfate is favorable for improving the beneficiation of iron and the removal of phosphorus through reacting with the gangues and destroying the concentric and layered oolitic structure [14]. Li et al. extracted the iron from oolitic hematite ore by deep reduction at 1200 C

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Mechanism of phosphorus removal in beneficiation of

2012-11-28  recovered the iron concentrate by low intensity magnetic separation. The concentrate had a total iron grade of 58.40%,but its phosphorus content was higher than 0.2%. SHEN et al, SUN et al, LI and LI et al applied the direct reduction roasting followed by low intensity magnetic separation in the beneficiation of oolitic hematite. LI obtained the product of directly reduced iron (DRI) with high phosphorus content of 0.3%. SHEN et al, SUN et al and LI et al did not mention the content of phosphorus in the DRI, which was due to the complex dissemination of the iron-bearing and phosphorus- bearing minerals and the ultra fine grain size. A direct reduction with additive and magnetic separation process was developed by LI et al, and a metallic iron concentrate with total iron grade of 93.84% and phosphorous content of 0.083% was obtained by this process. TANG et al evaluated the dephosphorization performance of gas-based reduction and melt separation in the beneficiation of high phosphorous

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Removing phosphorus from aqueous solutions by

2015-1-21  Iron-modified Gypsum straw biochar was used as an adsorbent to remove phosphorus from agricultural runoff. When agricultural runoffs with a total phosphorus (TP) concentration of 1.86 mgL−1 to 2.47 mgL−1 were filtered at a hydraulic retention time of 2 h through a filtration column packed with the modified biochar, a TP removal

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Processes for phosphorus removal from iron ore - a

The composition of iron concentrate obtained: 64.12% Fe and 0.07% phosphorus with an iron recovery of 96.83%, and a rate of dephosphorization of 74.08%. Figure 2 shows a flowsheet for concentration by reductive sintering and removal of phosphorus.

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REMOVAL OF SULFUR AND PHOSPHOROUS FROM IRON

2016-5-17  concentrate pelletizing process, and effect on steel quality. 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

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Removal of phosphorus from iron ores by chemical

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.

Get Price

The method of purification of iron ore concentrate

The problem of development of technology for removal of phosphorus not by metallurgical and obtain from these ores conforming phosphorus concentrate is of great practical interest and is important not only for CIS countries, but also of the Sabbath., in such ores, the iron content is 30-49% (minimum for concentrates - 50%), and the phosphorus ...

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Factorial Analysis of Phosphorus Removal during ...

2014-11-30  phosphorus from Agbaja (Nigeria) iron oxide ore. The results of this work [7] show that phosphorus removal efficiencies at the end of the 49 days of the leaching process are 81, 63 and 68% for 5, 100 and 250 mesh grain sizes respectively. R. The aim of this work is to carry out a factorial analysis of phosphorus removed during

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Predictability of Phosphorus Removal Based on ...

2020-8-21  Phosphorus Removal Based on Simultaneously Removed Sulphur and Mass-Input of Iron Ore Leached in Potassium Hydroxide.” Physics and Materials Chemistry. 1, no. 2 (2013): 27-33. doi: 10.12691/pmc-1-2-4. 1. Introduction . The adverse effects of high phosphorus content in iron ore and associated finished products such as iron and steel

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Comparative Assessment of Phosphorus Removal from

2013-7-31  The iron ore was found [1] to contain an average of 1.12% phosphorus and after the dephosphorization process, 91.61% phosphorus removal was attained with 1% sulfuric acid after leaching for 20 min at room temperature, during which iron loss was found to

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Process Design Manual For Phosphorus Removal

4.3 Phosphorus Removal Data for Iron Addition Operating data from several plants utilizing mineral addition before the prynary clarifier for phosphorus removal are shown in Table 4-1. With primary treatment alone, phosphorus removals varied from 60 to 91%. In secondary plants, iron addition before the primary resulted in phosphorus removals ...

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Increasing Iron and Reducing Phosphorus Grades of

2019-6-21  iron ore concentrate with an iron grade of 67.54%, phosphorus content of 0.11%, and iron recovery of 78.99% were obtained under LIMS conditions that employed a grind of 95% 0.038 mm and a magnetic field of 0.10 T. Optimized rougher reverse-flotation conditions used a pulp pH of 9 and

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Processes for phosphorus removal from iron ore - a

The composition of iron concentrate obtained: 64.12% Fe and 0.07% phosphorus with an iron recovery of 96.83%, and a rate of dephosphorization of 74.08%. Figure 2 shows a flowsheet for concentration by reductive sintering and removal of phosphorus.

Get Price

The method of purification of iron ore concentrate

The problem of development of technology for removal of phosphorus not by metallurgical and obtain from these ores conforming phosphorus concentrate is of great practical interest and is important not only for CIS countries, but also of the Sabbath., in such ores, the iron content is 30-49% (minimum for concentrates - 50%), and the phosphorus ...

Get Price

Removal of Phosphorus from High-phosphorus Iron

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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Factorial Analysis of Phosphorus Removal during ...

2014-11-30  phosphorus from Agbaja (Nigeria) iron oxide ore. The results of this work [7] show that phosphorus removal efficiencies at the end of the 49 days of the leaching process are 81, 63 and 68% for 5, 100 and 250 mesh grain sizes respectively. R. The aim of this work is to carry out a factorial analysis of phosphorus removed during

Get Price

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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Phosphorus Removal - Waterloo Biofilter

The Waterloo EC-P™ (patent-pending) is a cost effective process for permanently removing phosphorus from septic systems. The Waterloo EC-P mimics the natural phosphorus removal capabilities of iron-rich ‘B-horizon’ soils by electrochemically dissolving natural iron into wastewater.

Get Price

Predictability of Phosphorus Removal Based on ...

2020-8-21  Phosphorus Removal Based on Simultaneously Removed Sulphur and Mass-Input of Iron Ore Leached in Potassium Hydroxide.” Physics and Materials Chemistry. 1, no. 2 (2013): 27-33. doi: 10.12691/pmc-1-2-4. 1. Introduction . The adverse effects of high phosphorus content in iron ore and associated finished products such as iron and steel

Get Price

Removal of harmful elements and sodium carbonate ...

2013-12-6  These compounds lead to excess phosphorus and sulphur concentrations in the iron concentrate. Therefore, the removal of the phosphorus and sulphur from raw ore by reverse flotation prior to the reduction process was necessary. The use of Na 2 CO 3 as a pulp pH modifier proved important for the non-synchronous removal of sulphur and phosphorus.

Get Price

Increasing Iron and Reducing Phosphorus Grades of

2019-6-21  iron ore concentrate with an iron grade of 67.54%, phosphorus content of 0.11%, and iron recovery of 78.99% were obtained under LIMS conditions that employed a grind of 95% 0.038 mm and a magnetic field of 0.10 T. Optimized rougher reverse-flotation conditions used a pulp pH of 9 and

Get Price

Factorial Analysis of Phosphorus Removal during ...

2014-11-30  phosphorus from Agbaja (Nigeria) iron oxide ore. The results of this work [7] show that phosphorus removal efficiencies at the end of the 49 days of the leaching process are 81, 63 and 68% for 5, 100 and 250 mesh grain sizes respectively. R. The aim of this work is to carry out a factorial analysis of phosphorus removed during

Get Price

Long-term investigation of phosphorus removal by

2018-9-17  Long-term phosphorus removal from SWTPs was investigated and optimum operational conditions for phosphorus removal by iron electrolysis were analyzed in this study. Efficient phosphorus removal can be achieved for a long time by adjusting the amount of iron

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Phosphorus Removal - Waterloo Biofilter

The Waterloo EC-P™ (patent-pending) is a cost effective process for permanently removing phosphorus from septic systems. The Waterloo EC-P mimics the natural phosphorus removal capabilities of iron-rich ‘B-horizon’ soils by electrochemically dissolving natural iron into wastewater.

Get Price

Removing phosphorus from aqueous solutions by

2015-1-21  Iron-modified Gypsum straw biochar was used as an adsorbent to remove phosphorus from agricultural runoff. When agricultural runoffs with a total phosphorus (TP) concentration of 1.86 mgL−1 to 2.47 mgL−1 were filtered at a hydraulic retention time of 2 h through a filtration column packed with the modified biochar, a TP removal

Get Price

Predictability of Phosphorus Removal Based on ...

2020-8-21  Phosphorus Removal Based on Simultaneously Removed Sulphur and Mass-Input of Iron Ore Leached in Potassium Hydroxide.” Physics and Materials Chemistry. 1, no. 2 (2013): 27-33. doi: 10.12691/pmc-1-2-4. 1. Introduction . The adverse effects of high phosphorus content in iron ore and associated finished products such as iron and steel

Get Price

Comparative Assessment of Phosphorus Removal from

2013-7-31  The iron ore was found [1] to contain an average of 1.12% phosphorus and after the dephosphorization process, 91.61% phosphorus removal was attained with 1% sulfuric acid after leaching for 20 min at room temperature, during which iron loss was found to

Get Price

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

Get Price

Removal of harmful elements and sodium carbonate ...

2013-12-6  These compounds lead to excess phosphorus and sulphur concentrations in the iron concentrate. Therefore, the removal of the phosphorus and sulphur from raw ore by reverse flotation prior to the reduction process was necessary. The use of Na 2 CO 3 as a pulp pH modifier proved important for the non-synchronous removal of sulphur and phosphorus.

Get Price

Phosphorus Removal from Wastewater by

2020-9-26  Phosphorus removal from wastewater is very important in order to prevent water eutrophication. Although there are many ways to remove phosphorus, electrocoagulation (EC) is a promising method. However, the efficiency of conventional EC processes needs to be further improved. In this study, magnetized iron particle anodes used for EC were fabricated and batch experiments

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