Reduction of Iron Ore Pellets with a particular percentage of binders i.e. 2% of Dextrine and 2% of Bentonite was carried out for the temperature range 900 to 1050°C. In reduction kinetic study the most satisfactory model was to taken, the slope of
DetailsThe replacement of bentonite as the standard iron ore binder is an important factor in the future of iron processing. Bentonite adds 0.7%-1.0% unwanted silica to the …
DetailsDOI: 10.1016/j.jmrt.2024.05.175 Corpus ID: 269999242; Reducing bentonite usage in iron ore pelletization through a novel polymer-type binder: Impact on pellet induration and metallurgical properties
DetailsBentonite is the traditionally used binder in iron ore pelletization. However, it consists of up to 85% silica and alumina which are undesired acidic gangue in iron-making.
DetailsBentonite and calcium hydroxide are the widely used binding materials in iron ore pelletizing plants. This investigation deals with studying the effect of using a mixture of both binders on the ...
DetailsThe results showed that good quality wet, dry, preheated and fired pellets can be produced with combined binders (an organic binder plus a boron compound) when …
DetailsBentonite is the traditionally used binder in iron ore pelletization. However, it consists of up to 85% silica and alumina which are undesired acidic gangue in iron-making.
DetailsSodium-activated calcium bentonite is used as a binder in iron ore pellets and is known to increase strength of both wet and dry iron ore green pellets. In this …
DetailsAgainst the background of "carbon peak and carbon neutrality," it is of great practical significance to develop non-blast furnace ironmaking technology for the sustainable development of steel industry. Carbon-bearing iron ore pellet is an innovative burden of direct reduction ironmaking due to its excellent self-reducing property, and the …
DetailsThe beneficial influence of viscous binders in iron ore balling is well known from everyday practical operations. The large variety of binders studied in the iron ore …
DetailsThis study illustrates the feasibility of pelletizing magnetite iron ore concentrate using four organic binders: KemPel, Alcotac CS, Alcotac FE16, and CMC, in comparison to bentonite as a reference. The …
DetailsIron ore pellets use bentonite clay as binder at dosages of from 0.5% to 1.0% of the moist iron ore concentrate weight. As a natural product, bentonite has variable water-absorption and binding properties depending on its source. Therefore, it is best to have a method for evaluating a given bentonite to determine how effective it would be …
DetailsThe behavior of iron ore pellet binders is complex. Any pellet binder is subject to a handful of practical requirements: that it be readily dispersed through a pellet, that it effectively controls ...
DetailsBentonite is the traditionally used binder in iron ore pelletization. However, it consists of up to 85% silica and alumina which are undesired acidic gangue in iron-making.
DetailsZhang et al. [22] compared the adsorption characteristics of humic acid on montmorillonite, guided the preparation of a novel iron ore pellet composite binder, and determined that the composite ...
DetailsIn order to prepare a high-performance humic acid pellet binder Funa, a natural polymeric iron ore pellet binder containing humic acid salts was made from weathered coal extracted by NaOH solution ...
DetailsSodium bentonite clay for foundry, foundries, and iron ore pelletizing (IOP) shipped in bulk for coal blending or direct use.
DetailsBentonite, an inorganic binder, has been the main binder used in the iron ore pelletizing process since the beginning of pellet production in the 1950s. Bentonite …
DetailsThe most common agglomeration technique is pelletization, which requires the use of binders to hold the iron oxide grains together so that the agglomerates can be sintered into high-strength pellets. Although bentonite clay is the most commonly used binder, there are many other possibilities that could be competitive in a number of …
DetailsThe transformation from traditional iron- and steelmaking technologies to green H2-based new technologies will require an improvement in the quality and purity of iron ore burden materials. Iron ore pellets are essential inputs for producing direct reduced iron (DRI), but the conventional binders, used in iron ore pelletizing, introduce …
DetailsThe use of conventional bentonite binder is favorable in terms of mechanical and metallurgical pellet properties, however, because of its acid constituents bentonite is considered as impurity especially for iron ores with high acidic content. Therefore, alternative binders to bentonite have been tested. Organic binders are the most …
Details⋅ Iron ore pelletization with bentonite binder works by a different binding mechanism than with FBB. Bentonite is a physical binder, while FBB is a pozzolanic binder. ⋅ Iron ore concentrate pellets produced with up to 50% of the bentonite replaced by fly-ash exceeded minimum industrial specifications for dry compressive strength.
DetailsABSTRACT This part reviews the goals of introducing organic binders into iron ore pelletization. Organic binders present a relatively small number of unique binding options but provide an extraordinary amount of flexibility in how to apply them. The key factors that lead into an effective organic binder are good dispersion into the iron ore, …
DetailsThe binding of iron oxide grains by bentonite clay to form pellets is a complex process, with a large number of variables, many of which have never been adequately studied. Current practice for pelletizing iron ore concentrates was developed in 1950's during which bentonite clay was practiced as a binder and since then it has remained
DetailsBentonite, as the main binder for pellets, cannot undergo thermal decomposition during the smelting process and mostly remains in the pellets, leading to a decrease in the iron grade of the ...
DetailsSodium-activated calcium bentonite is used as a binder in iron ore pellets and is known to increase strength of both wet and dry iron ore green pellets. In this article, the microstructure of bentonite in magnetite pellets is revealed for the first time using scanning electron microscopy.
DetailsIron Ore, Iron Ore Pellets, Direct Reduced Iron )DRI( Pellets, Iron Ore Pellets Market, Pelletizing Process, Sintering, Binder, Induration Technology, Straight Grate, Grate-Rotary kiln The iron ...
DetailsHence, the suggested combined binders can be used as binder in place of bentonite in iron ore pelletizing without compromising the pellet chemistry. View full-text Article
DetailsOrganic binders as alternatives to bentonite in iron ore pelletisation have found limited application since they fail to give enough mechanical strength to preheated and fired pellets. This paper describes the use of …
Details1.. IntroductionIron ore pelletization plants in the United States used approximately 612,000 metric tons of bentonite as a binder to produce iron ore concentrate pellets in 2000 (Virta, 2001).It is a major cost item, with individual plants spending US$3–5 million annually for bentonite.
DetailsAnew kind of iron ore pellet binder named humic acid modifying bentonite (HA-) has been developed by the author's group, which has the advantages of both organic HA and inorganic bentonite. ... S. P. E. Forsmo et al., "Binding mechanisms in wet iron ore green pellets with a bentonite binder," Powder Technology, 169 (2006), 147–158 ...
DetailsHence, the suggested combined binders can be used as binder in place of bentonite in iron ore pelletizing without compromising the pellet chemistry. KEYWORDS: iron ore pelletizing; bentonite; organic binder; boron compounds; colemanite, chemical and metallurgical properties. 33 SİVRİKAYA, O., AROL, A.I. 1. INTRODUCTION Bentonite …
DetailsClaremboux et al. [14] and Sivrikaya et al. [15] studied on different organic binders in iron ore pelletization and concluded that these binders incorporated sufficient properties in iron ore pellets.
DetailsDownload Free PDF View PDF. ... K., Can fly-ash extend bentonite binder for iron ore agglo eratio ? International Journal of Mineral Processing, Vol.60, Issues.3-4 Elsevier, Amsterdam, pp. 181-198, December 2000. …
DetailsAs a good binder for iron ore pellets, an organic polymer should have (a) an extremely high melting point (T m) or glass transition temperature (T g), (b) exceptional thermal and oxidative stability, and (c) properties of solubility, moldability or both at least in an intermediate form [22]. 3. Structure of organic binders for iron ore ...
DetailsPE series jaw crusher is usually used as primary crusher in quarry production lines, mineral ore crushing plants and powder making plants.
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