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dephosphorization of iron ore in china

Dephosphorization of Iron Ore Bearing High

domestic low grade iron ores for the iron and steel plant in China, as China has a large deposit of high phosphorous iron ore with existing reserve of 7.45 billion tons which is unused in any large scale.1) The dephosphorization process for high phosphorous iron ores has been studied for

Dephosphorization of High-Phosphorus Iron Ore Using ...

2015-3-31 · In China, such high-phosphorus iron ore account for about 20 % of total resource of iron ore . Dephosphorization of high-phosphorus iron ore has been studied worldwide for several decades. Many efforts have been devoted to physical beneficiation and chemical leaching methods of high-phosphorus iron ore

Dephosphorization Treatment of High Phosphorus Oolitic ...

2.1. Iron Ore Sample Analysis. The high phosphorus oolitic iron ore used in this research was obtained from western Hubei in China. Table 1 shows the chemical composition of the ore examined by chemical analysis, indicating that iron content reached 51%, and phosphorus content was 0.52%. If phosphorus could be removed appropriately, the ores of this kind would be of great value in use.

Strengthening iron enrichment and dephosphorization of ...

2019-5-26 · 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

Strengthening iron enrichment and dephosphorization of ...

2020-4-14 · 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

journals on dephosphorization of iron ore - shibang

Chen Youyi;Inquire into Dephosphorization from Iron Ore Concentrate of Meishan Iron Mine[J];METAL MINE;1994-03: 4: New York Science Journal, 2011;4(5) on dephosphorization of the ore

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

Reaction Behavior of Phosphorus in Coal-Based

2017-5-9 · Oolitic hematite ore, a standard type of refractory iron ore, is mainly distributed in America, France, Russia, Pakistan, China, and other countries [4–6]. In China, the explored reserves of oolitic hematite ores reached 3.72 billion tons, which accounts for approximately 1/9 of total iron ore

A hydrometallurgical process for the dephosphorization of ...

A process is proposed for the dephosphorization of iron ore. The process consists of an integrated treatment for the removal of the phosphorus from the ore by leaching and further processing of the leach solution. Phosphoric acid is extracted by isoamyl alcohol (iAmOH) and stripped by nitric acid solution.

Dephosphorization of agbaja iron ore

Dephosphorization of agbaja iron ore Products. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including, Dephosphorization of agbaja iron ore, quarry, aggregate, and different kinds of minerals.

Strengthening iron enrichment and dephosphorization of ...

2019-5-26 · 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

Dephosphorization of high phosphorus oolitic hematite by ...

2017-8-1 · The iron ore reserves of 3.72 billion tons, account for approximately 73.5% of the sedimentary iron ore in China (Lu et al., 1994). The high phosphorus oolitic hematite has the characteristics of low-grade iron content and high-level harmful impurities, such as phosphorus and aluminium ( Wei, 2010 ), which limit the development of this oolitic ...

Strengthening iron enrichment and dephosphorization of ...

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 (XRD), vibration ...

STUDY ON DEPHOSPHORIZATION TECHNOLOGY FOR

In this paper,the importance of dephosphorization process in treatment of highphosphorus iron ore is discussed based on a review of the present situation in the concerned fieldsA dispersion-selective agglomeration desliming-reverse flotation process is used for treating the Ningxiang oolitic hematite in laboratory testingThe results show that the phosphorus content of iron concentrate can be ...

journals on dephosphorization of iron ore - shibang

Chen Youyi;Inquire into Dephosphorization from Iron Ore Concentrate of Meishan Iron Mine[J];METAL MINE;1994-03: 4: New York Science Journal, 2011;4(5) on dephosphorization of the ore

How to Remove Phosphorus from Iron Ore? | miningpedia

2021-6-18 · Continued increases in sulfuric acid use to 200 kg/t reduced the phosphorus content of the iron ore concentrate to less than 0.1%.However, the excess of Sulfuric acid also caused a large loss of iron in the dephosphorization reaction, with the grade of iron ore concentrate dropping to 61.46% and the iron recovery rate only 91.13%.

A hydrometallurgical process for the dephosphorization of ...

A process is proposed for the dephosphorization of iron ore. The process consists of an integrated treatment for the removal of the phosphorus from the ore by leaching and further processing of the leach solution. Phosphoric acid is extracted by isoamyl alcohol (iAmOH) and stripped by nitric acid solution.

China National Chemical Engineering Group | CNCEC ...

Roasting followed by acid leaching has long been an established dephosphorization technique for processing the goethite iron ore in the past. However, given the high

Dephosphorization of Nigerian Agbaja Iron Ore by ...

2018-12-7 · proven Nigerian iron ore deposit with phosphorus content in the range of 1.4-2.0%. In this study, dephosphorization of Agbaja iron ore using three acids and in different combinations were investigated. The design of experiment for the valuation of interactive factorial effects on phosphorus removal was also investigated.

Strengthening iron enrichment and dephosphorization of ...

2019-5-26 · 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

Dephosphorization Behavior of High-Phosphorus Oolitic ...

2018-11-5 · Heavy dependence upon imported iron ore concentrates is one of the most significant challenges for China’s pyrometallurgical industry. In China, high-phosphorus oolitic hematite constitutes approximately 11.1% of iron reserves, hence the application of recovering these refractory ores can be considered based on current situation [1].

Study on dephosphorization mechanism by roasting iron

2020-9-10 · Study on dephosphorization mechanism by roasting iron ore pellets with high phosphorus content Yangping Wu, Yuanzheng Guo and Xiaocan Zhong School of North China University of Science and Technology, Tangshan 063000, China; Abstract Based on high phosphorus pellets as the research object, combined with Factsage7.1

Strengthening iron enrichment and dephosphorization of ...

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 (XRD), vibration ...

Synthesis and Dephosphorization of Iron Manganese ...

Fe-Mn composite oxide has been successfully synthesized using manganese ore in Guilin, Guangxi as an effective way to dephosphorize by acid leaching. Studied about the optimum conditions of acid leaching and the dephosphorization of Fe-Mn composite oxide. Process of the sulfuric acid concentration 2.1mol/L, solid-liquid ratio 1:4, reaction time 3.5h, the reaction temperature 90°C, the iron ...

Dephosphorization Technology of High Phosphorus Oolitic ...

2021-3-18 · Dephosphorization Technology of High Phosphorus Oolitic Hematite by Direct Reducing Process: GAN Yu-dong 1 DUAN Dong-ping 2 HAN Hong-liang 2: 1. College of Metallurgy and Energy, Hebei United University, Tangshan 063000, Hebei, China 2. Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China

Processes for phosphorus removal from iron ore - a review

2.2.3.2 Flotation. There are many citations in literature on the reduction of phosphorus in iron ore through anionic flotation, using a fatty acid as collector and sodium silicate as a depressant of iron oxides, when the mainphosphorus-bearing mineral is apatite (Ranjbar, 2002 RANJBAR, M. Dephosphorization of iranian iron oxide fines by flotation.. Erzmetall, v. 55, n. 11, p. 612-62

(PDF) Reaction Behavior of Phosphorus in Coal-Based ...

2016-4-8 · Reaction Behavior of Phosphorus in Coal-Based Reduction of an Oolitic Hematite Ore and Pre-Dephosphorization of Reduced Iron April 2016 Metals - Open Access Metallurgy Journal 6(4):82

China scraps tariffs on some steel products to curb iron ...

2021-4-28 · Iron ore. Photo:VCG. China announced on Wednesday that it would scrap tariffs on certain steel products and raw materials starting on May 1, in a bid to curb iron ore