View PDF; Download full issue; Search ScienceDirect. Journal of Iron and Steel Research, International. Volume 18, Issue 8, August 2011, Pages 14-19. ... Ti- bearing magnetite pellet. 2.2 Analysis of oxidation kinetics Based on the experimental data, oxidation ki- netics of pellet was analyzed according to shrinking unreacted-core …
Oxidation of magnetite pellets is commonly performed to prepare strong pellets for ironmaking. This article presents a contribution to quantitative understanding of fundamental pellet oxidation kinetics, based on measured oxidation kinetics of magnetite particles and pellets. The commonly observed "plateau" oxidation behavior is confirmed …
DOI: 10.1016/j.jmrt.2021.11.039 Corpus ID: 244094835; Extraction of Vanadium from Low-vanadium Grade Magnetite Concentrate Pellets with Sodium Salt @article{Zhang2021ExtractionOV, title={Extraction of Vanadium from Low-vanadium Grade Magnetite Concentrate Pellets with Sodium Salt}, author={Shuhui Zhang and Guanghui …
The pellets prepared from the synthesized magnetite attain the threshold Cold Crushing Strength (CCS) of 50 kg/pellet at a lower temperature of 1050 °C in comparison to hematite pellets (1100 °C).
Two strategies were used to cultivate different MMPs (Fig. 1): (1) Magnetite was mixed with fungal spores and they were co-cultured to obtain co-culture type of magnetite-assisted mycelial pellets (CMMPs); (2) Magnetite was mixed with mature mycelial pellets to obtain adsorption type of magnetite-assisted mycelial pellets …
cause the unusual oxidation behavior of pellets prepared from magnetite concetrate.[1] As documented early in the development of the taconite pellet process,[4] oxida-tion of magnetite pellets does not follow simple shrink-ing-core kinetics. Isothermal oxidation of pellets reaches a plateau level; the plateau depends on temperature and
An alternative route of magnetite processing involving the formation of CWF (CaFe 3 O 5 /calcio-magnetite) phase in lime-magnetite pellets (LMPs) was proposed …
The reducing property of pellets prepared by ultrafine magnetite concentrate (UMC) and improving method were revealed. The results show that the …
There is a significant and necessary drive towards reducing CO 2 emissions produced by iron and steelmaking industries. Binding Solutions Ltd has developed a technology to contribute to the reduction of CO 2 in the short and long term, by introducing a cold-bonded iron ore pellet to the furnace burden. Binding Solutions' cold-agglomerated …
The indurated VTM pellets used in this study were obtained from an iron and steel company in China. The detailed chemical composition of the VTM pellets is listed in Table 1.The binary basicity is 0.23, and the contents of total iron (TFe), TiO 2, and V 2 O 5 are 54.40%, 8.78%, and 0.54%, respectively. The phase composition of the VTM pellets …
Abstract Based on the fundamental characteristics of high chromium vanadium-titanium magnetite (HCVTM), the effects of roasting temperature and roasting time on the phase transition and oxidation consolidation during the oxidation were investigated systematically. It was shown that the oxidation of HCVTM pellet was not a simple process but complex. …
Based on the fundamental characteristics of high chromium vanadium-titanium magnetite (HCVTM), the effects of roasting temperature and roasting time on the phase transition and oxidation consolidation during the oxidation were investigated systematically. It was shown that the oxidation of HCVTM pellet was not a simple …
High-chromium vanadium–titanium magnetite (HCVTM) is a typically complex polymetallic iron ore resource with abundant reserves in China, Russia, North Africa, and America [1, 2].It is mainly deposited in Panxi area in the Sichuan province, China, and has a high comprehensive utilization value [].Iron (Fe), vanadium (V), …
1. Introduction. Iron ore pellets are one of the significant sources of iron for iron and steel making due to their superior metallurgical performance, low energy consumption, and less emission of environmentally harmful dust and gases during the production process [1], [2], [3].The two primary raw materials for pellet production are …
Magnetite and hematite are the two main raw materials for pellet production. Magnetite concentrates have more predominance due to the heat release …
The pellets were produced from the company's Duchess South drill core in the Southern Middleback Ranges using innovative technologies proposed for SIMEC's magnetite expansion operations. As part of routine production, a small parcel of concentrate was successfully converted to pellets in the existing pellet plant. ... View all …
By means of isothermal oxidation and chemical analysis, great importance was attached to the parameters that made effects on the oxidation degree of vanadium, titanium-bearing magnetite pellet in ...
Thermal volume changes and oxidation mechanisms in magnetite iron ore green pellets balled with 0.5% bentonite binder, as a function of raw material fineness and pellet porosity, are shown. When a pellet starts to oxidize, a shell of hematite is formed around the pellet while the core still is magnetite. Dilatation curves were measured …
Magnetite Iron Ore Pellets Capture A Major Chunk Of The Market And Are Set To Create An Absolute $ Opportunity Of Around US$ 1.2 Bn Over 2021-2031; States Fact.MR Read full article FACT.MR
The effect of TiO2 on the crushing strength for high-Cr V-Ti magnetite pellets was studied in this paper. On one hand, the crushing strength obviously decreased with the increasing TiO2 contents. On the other hand, the crushing strength had an obvious increase after grinding treatment for the high-Cr V-Ti magnetite and titanium …
View. Show abstract... The diffusion of oxygen inside the pellet (x-z cross-section) is shown in Fig. 4. ... The induration of magnetite pellets is a complex physico-chemical process that involves ...
View more references. Cited by (4) Influence of magnetite concentrate morphology on oxidation and sintering rates of pellet during induration. 2023, Journal of Materials Research and Technology. ... Results showed that BM and HPGR magnetite pellets are oxidized between 270 and 950 °C. HPGR pellets oxidize slower than BM …
The reaction mechanisms for oxidation of magnetite pellets is dependent primarily on factors such as temperature and oxygen content in the oxidizing gas, etc. Isothermal oxidation of magnetite at ...
Abstract. An experiment for the oxidation process of single magnetite pellet and theoretical analysis based on modified unreacted core shrinking (MUCS) model were carried out, and the controlling mechanisms of the initial and developing reactions were examined, respectively. From the study of the initial reaction, it was found that the …
Pellets prepared from low-grade BHQ using conventional beneficiation and magnetization roasting.. Pellet properties are compared as a function of induration …
To expand the application of barium-bearing magnetite in pellets, the oxidation induration mechanism for barium-bearing magnetite concentrate pellets with the BaSO4 contents from 0 to 8wt pct as ...
The results show that it is hard for V-Ti magnetite pellet to be oxidized well, and that the preheating time of pellet is longer and the roasting temperature of that is higher as well.
1. Introduction. Vanadium-titanium magnetite (VTM) is considered as an important strategic mineral, which associated a variety of metal minerals with high comprehensive utilization value [1].The smelting methods of VTM mainly include blast furnace process and coal-based rotary kiln process at present [2, 3].As one of the main …
