With the increasing consumption of high-quality iron ore, realizing the efficient utilization of refractory iron ore resources is of strategic significance for the sustainable development of the iron and steel industry (Qin et al., 2023, Sahu et al., 2023, Yuan et al., 2019).Among refractory iron ores, high-phosphorus oolitic iron ore (HPOIO) has attracted …
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Iron concentrate with an iron grade of 58.72% and iron recovery of 89.32% was obtained via microwave pretreatment at 1050 °C for 2 min, followed by magnetization roasting at 650 °C for 5 min at ...
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phosphorus iron ore impurities. Gulin machine in iron ore processing plant, phosphorus iron ore impurities. Gulin provide the phosphorus iron ore impurities solution case for you. » More detailed! The editorial style of the Water SA. Key words: Iron ore concentrate, phosphorous, potassium, solid substrate citric acid … higher removal of K from the iron ore concentrate.
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Autoclave leaching of zinc concentrate (Sphalerite) is an environmentally friendly process compared to roasting, which discharges pollutants into the atmosphere. Due to the amount of iron in the final product, a study is proposed to evaluate different reagents for eliminating iron from the autoclave outcome, minimizing Zn losses. The colloid formation, zinc losses, iron removal, …
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High-phosphorus iron ores from the Pilbara area of Western Australia are accompanied by the presence of goethite, and the removal of phosphorus by leaching has been proposed to counteract the ...
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Xu et al. investigated the phosphorus removal of oolitic hematite ore of high content of iron by applying a reductive calcination with dephosphorizing agent (Na 2 SO 4 and Na 2 CO 3). The …
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Biosorption is a physiochemical process that occurs naturally in certain biomass which allows it to concentrate passively and bind contaminants onto its cellular structure. Every biosorbent had different physical, chemical and biological properties for iron and phosphorous removal from water. ... When iron and phosphorous removal from water was ...
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Li et al. reported the effect of sodium sulfate on reduction roasting and P removal from 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 …
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The effect of CaCO 3, Na 2 CO 3, and CaF 2 on the reduction roasting and magnetic separation of high-phosphorus iron ore containing phosphorus in the form of Fe 3 PO 7 and apatite was investigated. The results revealed that Na 2 CO 3 had the most significant effect on iron recovery and dephosphorization, followed by CaCO 3, the effect of CaF 2 was …
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Functionalized biochar from vegetable waste for phosphorus removal from aqueous solution and its potential use as a slow-release fertilizer. Author links open overlay panel Rajesh Chanda a, ... Adsorptive removal of phosphate from aqueous solutions using iron oxide tailings. Water Res., 38 (2004), pp. 1318-1326, 10.1016/j.watres.2003.12.009.
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Around 54% of phosphorus (P), 21% of Al 2 O 3, and 61% of SiO 2 can be preliminarily removed from unroasted oolitic hematite ore. Through further dephosphorization with dilute sulfuric acid at room temperature, a high-quality Fe concentrate with 63.3% Fe, 0.04% P, and a Fe recovery rate of 96% was obtained.
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Several technical routes have been proposed for phosphorus removal and iron recovery from high-phosphorous iron ores, including physical beneficiation, hydrometallurgy, and …
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Request PDF | Batch and continuous-flow studies of 1-hydroxyethane 1,1-diphosphonic acid (HEDP) removal from simulated membrane concentrate by iron oxide-coated zero valent iron (ZVI ...
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Phosphate removal can be also obtained by iron oxides from mineral processing industry (Ajmal et al., 2018) or by calcium meta-silicate minerals (Obradović et al., 2017). Ligand exchange and surface precipitation are the predominant sorption mechanisms with removal capacities depending on the by-product composition, size, porosity and on the ...
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The leaching method can efficiently remove phosphorus by dissolving phosphorus-bearing gangue minerals (mainly apatite) in the ore. ... –reverse flotation separation process of HPOH with TFe of 47.71% and phosphorus content of 0.874% and obtained an iron concentrate with TFe of 61.78% and phosphorus content of 0.23%. However, this process has ...
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Acid leaching is the most efficient method for removal of phosphorus from iron ore. Among the tested acids, Sulfuric Acid (H2S04) is the most effective for this purpose.
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The partial nitritation/anammox (PNA)-hydroxyapatite (HAP) process for synchronized nitrogen (N) and phosphorus (P) removal has attracted much attention; however, its use has been restricted by the limited availability of optimal bioreactor configuration and its operational conditions.In the present study, a new single-stage PNA reactor, the airlift inner …
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On the contrary, phosphorus can be utilized to greatly enhance the economic value of the high-phosphorus iron ore (Yang et al., 2017, Udochukwu, 2019), instead of treating phosphorus as a harmful element.Phosphorus is an important chemical raw material, a necessary element for the growth of crops, and an important part of living matter (Avdalović et al., 2015, …
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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., …
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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%. ... Iron concentrate with an iron grade of 58.72% and iron recovery of 89.32% was obtained via microwave ...
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In this paper, the removal processes for silicon (Si), aluminum (Al) and phosphorus (P) impurities from low-grade iron ore, in which hematite (Fe2O3), goethite (FeO(OH)), and quartz (SiO2) …
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Alkali-leaching and acid-leaching were proposed for the dephosphorization of Changde iron ore, which contains an average of 1.12% for phosphorus content. Sodium …
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The phosphorus content in the iron concentrate is about 0. 6 – 0.8 % and the studies has shown that it is not represented as separable from iron minerals species, Belikov . ... resistant to acid leaching and phosphorus removal during these tests has never exceeded 12 %. Feld . et al, (1966) have tested roasting in the presence of metal ...
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Zhang and Muhammad (1989) used Nitric Acid (HN03) to remove phosphorus from the iron ore of the Kiruna region, Sweden. A concentrate of sinter, moist and without treatment was used.
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Both reactive phosphorus (orthophosphate, PO 4 3−) and non-reactive phosphorus (e.g., phosphonate) contribute to eutrophication, and people mainly focus on the PO 4 3− control. Membrane concentrate is one of the main pollution sources of phosphonate (e.g., HEDP), while few technologies have been developed for advanced total phosphorus (TP) removal from it.
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Zhao et al., [52] demonstrated biological induced co-precipitation of iron and phosphorus in a S 0 driven autotrophic denitrification system, achieving a phosphate removal rate of up to 81.4 ± 7.8 %. ... The phosphorus removal was the result of the synergistic effect of biological phosphorus removal (29.71 ± 3.21 %) and biologically induced ...
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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 …
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The Fe 2 O 3 and Na 2 O contents in the final leaching product are 55.23 % and 0.23 %, and can be directly used as iron concentrate in the ironmaking process. ... phosphorus, and sulfur. Often, a chemical separation is the only method able to remove phosphorus from iron ores. Phosphorus can occur as phosphorus-containing minerals (e.g., apatite ...
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DOI: 10.1016/J.MINENG.2013.03.028 Corpus ID: 96877477; Amenability for processing of oolitic iron ore concentrate for phosphorus removal @article{Ionkov2013AmenabilityFP, title={Amenability for processing of oolitic iron ore concentrate for phosphorus removal}, author={Krassimir Ionkov and Stoyan Gaydardzhiev and Armando C Ara{'u}jo and David …
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