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Phosphorous is an undesired element present in iron ore used in the steel making process. It leads to an increase in overall production cost as well as deteriorated steel quality. The desired phosphorus content in iron ores used in steel making is < 0.1%. Numerous beneficiation studies are mentioned in the literature; however, there is no commercial scale …
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 …
Due to the continuous development of iron and steel industry, high-quality iron ore is rapidly decreasing year after year. Therefore, some low-grade iron ores turn out to be …
China is rich in high phosphorus iron ore resources, accounting for more than 10% of the total iron ore resources, so the development and utilization of high-phosphorus iron ore was the …
With the development of China's iron and steel industry, the demand for iron ore is increasing, and the contradiction of iron ore shortage is prominent.1,2) China is rich in high-phosphorus iron ore reserves, but due to its high phosphorus content, complex mineral phase structure and small mineral size, it is difficult to use efficiently.3–5) In addition, in the blast …
The rapid demand growth of lithium iron phosphate (LxFP) batteries has seen the production of the cathode technology emerge as a major end-use for purified phosphoric acid (PWA/TPA) and technical mono-ammonium phosphate (tMAP). China dominates the supply and consumption of LxFP cathode active material (CAM) and has invested heavily in capacity.
HIsmelt is an energy-saving and emission-reducing technology as compared to the blast furnaces (BF). This paper analyzed the preponderances of smelting high-phosphorus iron ore and ilmenite by HIsmelt technology, which is reserved vastly in China. The results showed that it is very suitable for smelting ilmenite, and iron recovery rate reached 95% with titanium content …
Despite the abundant reserves of iron ore resources in China, the overall iron ore is ... However, due to its high phosphorus content, fine size of iron ore, and complex mineral composition, it is ...
1. Introduction. Economic growth has entailed the extensive consumption of high-quality iron resources [1].In this context, the utilization of refractory iron ore has generated significant research interest [2].Among the reserves of refractory iron ores, high‑phosphorus oolitic iron ore (HPOIO) have reached 20 billion tons; however, the oolitic structure and …
Gaseous reduction kinetics of the high phosphorus iron ore fines from Hubei in China and effect of microwave pretreatment on the gaseous reduction behavior were studied. Gaseous reduction kinetics were investigated by TG (Thermogravimetric) methods using LINSEIS STA PT 1600 thermal analysis equipment. Microwave pretreatments to the ore fines ...
A thermodynamic analysis of the carbothermic reduction of high-phosphorus oolitic iron ore (HPOIO) was conducted by the FactSage thermochemical software. The effects of temperature, C/O ratio, additive types, and dosages both on the reduction of fluorapatite and the formation of liquid slag were studied. The results show that the minimum thermodynamic …
Investigation of phosphorus associations seen in Brockman Iron Ore Formation, Australia, shows that phosphorus occurs in three main forms, (Wells and Ramanaidou, 2011). The first one is secondary apatite, the second one, accounting for a very modest amount of total phosphorus content, is occurring in other sub-micrometric sized minerals like ...
Key words: smelting reduction; ilmenite; high phosphorus iron ore; iron recovery; dephosphorization 1 Introduction With the quick growth of iron and steel industry in China, more and more iron ore are demanded. China has become one of the world's largest importers of iron ore. Iron ore resources in China are abundant but the number
The average contents of P and Fe in the iron ore were 1.06 and 47.90% (w/w), respectively. The particle sizes of the ores used ranged from 58 to 3350 μm. It was found that the indigenous sulfur-oxidizing bacteria from municipal wastewater could grow well in the slurries of solid high-phosphorus iron ore and municipal wastewater.
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 …
[1] Xiucheng X 2014 Mining and Metallurgical Engineering China's phosphate ore resources can be mined Google Scholar [2] Yongfu Y 2015 Mining and Metallurgical Engineering Phosphate beneficiation progress and existing problems Google Scholar [3] Xiaohong S 2015 Acta Geoica Sinica China Phosphate Resource Demand Forecast Google Scholar [4] …
Phosphorus-bearing refractory iron ore is a typical refractory iron resource with low Fe content, weakly magnetic, and high phosphorus content [8], [9]. When traditional beneficiation methods, such as gravity separation, magnetic separation, and flotation, are employed to extract iron from gangue, the Fe recovery and Fe grade of concentrate are ...
High-phosphorus iron ore resource is considered a refractory iron ore because of its high-phosphorus content and complex ore phase structure. Therefore, the development of innovative technology to realize the efficient utilization of high-phosphorus iron ore resources is of theoretical and practical significance. Thus, a method for phosphorus removal by …
1. Introduction. Economic growth has entailed the extensive consumption of high-quality iron resources [1].In this context, the utilization of refractory iron ore has generated …
Phosphorous is an undesired element present in iron ore used in the steel making process. It leads to an increase in overall production cost as well as deteriorated steel quality. The desired phosphorus content in iron ores used in steel making is < 0.1%. …
Iron ore is steel's main ingredient. Traces of other elements, such as carbon, manganese, and phosphorus, are added to tailor its properties.High-grade stainless steel – needed for things like ...
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 …
High-phosphorus (P) iron ore, particularly oolitic hematite, has remained unexploited due to technological and cost limitations in mining. ... North Africa, Saudi Arabia, and the Yangtze River region in China. [10,11,12] It contains high concentrations of 0.5 to 2.5 wt pct phosphorus that exist mainly in the form of apatite, ...
accounting for about 7% of the total iron ore resources in China [3, 4]. However, HPOH has high phosphorus content and a unique small-particle oolitic structure, which makes it very difficult to be separate phosphorus and iron oxides [5–7]. Therefore, how to decrease phosphorus and recover iron from HPOH is the most challenging factor of ...
China dominated worldwide production of phosphate rock in 2023, with production amounting to 90 million metric tons. ... Global iron ore mine production 2023, by country ... "Phosphate rock ...
Experts say that Algeria has turned out to be China's easy option to source iron ore. ... a mineral that weakens the steel in which the iron ore is used. Removing the phosphorus is an intensely ...
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 ... a high-phosphorus oolitic iron ore containing 44.70% Fe and 1.56% P from western Hubei of China was collected as the sample. The chemical composition, mineral composition ...
With the development of China's iron and steel industry, the demand for iron ore is increasing, and the contradic-tion of iron ore shortage is prominent.1,2) China is rich in high-phosphorus iron ore reserves, but due to its high phosphorus content, complex mineral phase structure and
The feasibility of dephosphorization using the flotation process and its mechanism of high-phosphorus oolitic hematite were discussed in this paper. The results showed that phosphorus minerals mainly exist in the form of collophane, which can be divided into three types. Block collophane and band collophane could be effectively removed through flotation, …
