Semantic Scholar extracted view of "A novel direct reduction-flash smelting separation process of treating high phosphorous iron ore fines" by Qi-peng Bao et al. ... Recovery of Phosphors by Beneficiation Technology. Jing Guo Bing Li Hao Peng ... (including ore, reductant, and dephosphorization agent) on the direct reduction process of high ...
— ABSTRACT The reduction roasting followed by magnetic separation process is considered to be a suitable method to treat the high-phosphorus oolitic iron ore. Currently, the dephosphorization mechanism of additives such as CaCO3, Ca(OH)2, Na2SO4, and Na2CO3 on the reduction roasting of the iron ore in which phosphorus occurs in apatite …
In biological beneficiation processes it is always recommendable to employ indigenous species to reduce environmental impacts. In this work, authors report the successful …
— To provide a new method for the dephosphorization of high-phosphorus oolitic iron ore (HPOIO) by reduction roasting, the feasibility of the high-efficiency separation of iron and phosphorus by reduction roasting and magnetic separation process (RRMSP) without a dephosphorization agent was studied. The results showed that the full …
— 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 ...
— Beneficiation of Iron Ore and the treatment of magnetic iron taconites, stage grinding and wet magnetic separation is standard practice.This also applies to iron ores of the non-magnetic type which after a reducing roast are amenable to magnetic separation. All such plants are large tonnage operations treating up to 50,000 tons per day and …
Iron grain size in reductive ore without alkaline oxide additive (performed at 10008Cfor 150min with 20% dosage of reductant coal) is tiny, and the fayalite is abundant. Moreover,
— After studying the influence of reducing gas flow rate, reduction time, hydrogen–carbon ratio and temperature on reduction behaviors, the optimum conditions …
— The most important iron ore deposits of Iran, namely Chogart, Gol-e-Gohar, Chador Malu, are located in central Iran. The main iron bearing mineral phases of these deposits were known as magnetite ...
— The ratio of bastnaesite to monazite in the deposit is approximately 3:1, and REEs are recycled from iron ore processing tailings. 42, 43 There are three mining areas in the Bayan Obo deposit. The Main Ore Body and West Ore Body were mined by Baotou Iron and Steel Group in 1957, and the West Ore Body was exploited in 2004. 5
Automated optical image analysis of natural and sintered iron ore. E. Donskoi, ... J.R. Manuel, in Iron Ore, 2015 Abstract. To evaluate an iron ore resource, develop processing routines for iron ore beneficiation, and understand the behavior of the ore during such processing, extensive mineralogical characterizations are required.For calculating …
— Oolitic hematite is an iron ore resource with complex refractory characteristics, abundant reserves, and significant recycling value. In this study, a clean and innovative microwave fluidization roasting method was developed. Iron concentrate with an iron grade of 58.72% and iron recovery of 89.32% was obtained via microwave pretreatment at …
— To provide a new method for the dephosphorization of high-phosphorus oolitic iron ore (HPOIO) by reduction roasting, the feasibility of the high-efficiency …
— To investigate the effect of simultaneous change in particle size of raw materials (including ore, reductant, and dephosphorization agent) on the direct reduction process of high-phosphorus ...
— The results of investigation of sintering and magnetic beneficiation of brown iron ore concentrate are presented. The investigations are based on using a possibility of redistribution of phosphorus from the ore constituents into slag-forming ones in the process of sinter roasting.
— The reserves of brown iron ore are known to rank third in the world and they are common in North America, Australia, China, Kazakhstan, and other countries. Ores of most brown iron deposits are readily and inexpensively mineable and require low power for crushing and beneficiation. However, the mechanical methods of their beneficiation do …
which indicates that the ore is an acid iron ore [35]. To determine the state of iron within the ore, Table 2 presents the findings from the chemical phase analysis of iron. The primary iron states in the raw ore were identified as hematite and limonite, comprising 45.52% of the total iron content, with a distribution of 92.26%.
— 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 ...
XII ENTMME / VII MSHMT – Ouro Preto-MG, noviembre 2007. DEPHOSPHORIZATION OF AN IRON ORE BY A FILAMENTOUS FUNGUS. Pedro Delvasto 1,2, Antonio Ballester 1, Jesús Angel Muñoz 1, María Luisa ...
— 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 …
— Semantic Scholar extracted view of "Dephosphorisation of western australian iron ore by hydrometallurgical process" by C. Cheng et al. ... the rate of biodephosphorization and the degree of beneficiation increases. ... Effect of process variables on the oxidative dephosphorization of high -phosphorus Agbaja iron ore were …
— Deep dephosphorization of high‑phosphorus oolitic iron ore (HPOIO) is extremely difficult because of its refractory characteristics. A new approach for …
— Bioleaching for phosphorus removal from iron ores. Dephosphorization of iron ore can be achieved through bioleaching. Different methods are needed to remove phosphorus from iron ore depending on whether it is present as a mineral (apatite) or associated with iron minerals (Edwards et al., 2011). Although most phosphorus occurs …
— In biological beneficiation processes it is always recommendable to employ indigenous species to reduce environmental impacts. In this work, authors report the successful activation of the...
— Process mineralogy of low-grade laterite nickel ore in Indonesia was systematically characterized and the beneficiation process of mineral components such as limonite, serpentine and chromite was ...
— Fig 3 Types of processing ores. The wet processing (Fig 4) is normally practiced for low / medium grade (60 % Fe to 63 % Fe) hematite iron ore. The wet process consists of multi-stage crushing followed by different stages of washing in the form of scrubbing and / or screening, and classification etc., but the advantage is only partial …
In today's scenario, ultrafine grinding followed by froth flotation seems to be the most feasible solution for the beneficiation of high phosphorous iron ore in which the concentrate obtained can be utilized for pellet making and ultimately used for steel making processes.
A process has been proposed for the treatment of apatite concentrate obtained from the dephosphorization of iron ore. In this process, the apatite is acidulated by HNO3 to produce high-purity H3PO4. … Expand
