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Innovative Development on Agglomeration of Iron Ore Fines and Iron Oxide Wastes Jagannath Pal To cite this article: Jagannath Pal (2019) Innovative Development on Agglomeration of Iron Ore Fines and Iron Oxide Wastes, Mineral Processing and Extractive Metallurgy Review, 40:4, 248-264, DOI: 10.1080/08827508.2018.1518222


ABSTRACT In steel industry and in mines, a significant amount of ultra-fines waste iron oxides and iron ore fines is generated. Utilizations of these fines are required to reduce the environmental hazards and conserve the natural resources. Some of these fines are normally used in sintering practice. However, sintering has a limitation of accepting ultra-fines materials.


agglomeration, are added into the iron ore fines to improve the pellet properties and impart strength to the pellets during wet, dried and indurated conditions [7 - 10, 19, 21]. Pelletization involves size enlargement of iron ore fines in presence of binders and moisture in critical amount by forming green


The quality spread of iron ore products is widening. The mined iron ore is usually sold to steel makers as concentrate, fines, pellets, and lump. Concentrate ore …


Reviews Agglomeration of Iron Ores covers in considerable detail both the sintering and pelletising of iron ore fines and concentrates that are generated along with lump ore in iron ore mines around the world, either naturally or after upgrading in a beneficiation process. The book is devoted to a detailed treatise of the sintering and pelletising of the raw materials in separate …


Pellets around 4-10 mesh provide a happy medium between iron ore fines (crushed/ground iron ore) and a chunk of iron (mined) for use in a blast furnace. Pelletization offers an effective solution to the items noted above. The 'recipe' for successful pelletization, however, is determined through testing. Iron Ore Agglomeration …


With the projected steel production, requirement of iron ore is expected to be around 350 to 400 million tonnes per year. This makes it imperial for the steel industry in the country, and even worldwide, to utilize the iron ore fines. Agglomeration processes are used for this purpose. The major agglomeration processes for iron ore fines are ...


pellet feed. The compounding ratio of the return fines of sin-ter, pellet feed and ultrafine iron oxide powder required to satisfy the target particle size distribution according to Eq. (1) was calculated. The obtained compounding ratio of the return fines of sinter, pellet feed and ultrafine iron ore pow-der was 79%, 14% and 7% respectively.


The most important iron ore Pelletization parameters that affect the agglomeration are wetting-nucleation, consolidation-growth and attrition-breakage.16‒18 This paper outlines the statistical analysis of the influence of process variables on the green pellet characteristics of Barsua iron ore fines. Experimental Material preparation


Pelletizing of iron ore is a method of Swedish origin, patented in 1912 by AG Andersson (Yamaguchi et al., 2010). The process was developed in the USA in the 1940s, and the first commercial plant started operation in Babbitt, Minnesota in 1952. The first iron ore pellet plant of the grate-kiln type was established at Humboldt Mine, Michigan in ...


The iron ore production has significantly expanded in recent years, owing to increasing steel demands in developing countries. However, the content of iron in ore deposits has deteriorated and low-grade iron ore has been processed. The fines resulting from the concentration process must be agglomerated for use in iron and steelmaking. This chapter shows the status of the …


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Pelletization - Outotec

Pelletization is the process of transforming iron ore fines into spherical pellets through agglomeration and induration. These pellets are then used as feed to a blast furnace or direct reduction systems to produce iron. As the only supplier in the world, Outotec offers both straight grate and grate-kiln technologies for any required ...


direct reduced iron (DRI). Generically, the iron ore products for ironmaking can be classified as shown in Table 1 . Pellets are balls formed by rolling moist concentrates and fines iron ores of different mineral-ogical and chemical composition, with the addition of additives and binder, in a horizontal drum or in an inclined disc [1, 4].


Iron ore also differs in physical form. Fines require sintering (agglomeration into crude pellets) prior to use in the blast furnace. Lump ore can bypass this process and be charged directly into the furnace, as can pellets, and both command an associated price premium. Most steel mills use a blend of different grades of ore, and a mix of ...


Iron Ore Silica Differential per 1% (55-60% Fe Fines) TSIAI00 TSIAI03 Assessment Daily PMA1105 1% silica for fines with 55-60% Fe $/dmt Iron Ore Phosphorus Differential per 0.01% with 0.09-0.12% (60-63.5% Fe Fines) IOPPQ00 Calculation Daily PMA1105 0.01% phosphorus within 0.09-0.12% range for fines with 60-63.5% Fe $/dmt


utilize fines and concentrates replacing lump ore. Reducibility mostly depends upon the individual ore character and its agglomeration parameters. To increase the performance of pellet in blast furnace, it is required to improve the reducibility of hematite pellet. Reducibility of iron oxide pellet largely depends