This work presents the mathematic models of the basic processes from an iron ore processing plant. Based on the mathematic models, using the Matlab/Simulink platform, it was achieved the simulation of the dosing process and simulation of the sintering process. The achieved mathematic model allows the determination of the material flows in the charge at their chemical composition variation, or a...

This paper reports the results relating to the following four subjects: i) current status and future prospects of iron and steel production in China; ii) equipped plantsize and operating condition of blast furnaces that sustain Chinese big steel production; iii) trends of demand and supply of iron ore and coal for blast furnaces; and iv) challenges and problems entailed by production increases....

Abstract The main indicators of the iron ore quality are content iron, silica, phosphorus and other components. It is ascertained that depends on its grain-size composition. article proves when crushing 16-0 mm fraction to 5-0 mm, Fe reclassified by sizes due liberation both martite hematite at this grain size. To reduce energy consumption during grinding, it recommended install high pressure g...

X-ray diffraction (XRD) can provide useful information about the composition of an ore sample in terms of quantification of crystalline phases and also amorphous content. XRD is also a powerful technique for studying substitutional solid solutions that can affect mining productivity, such as determining lattice bound aluminum in Goethite. Knowledge of the phases present can predict processing r...

Due to economical and environmental issues, utilization of mineral wastes, e.g. iron ore mine tailing (IOMT), as road materials can be recommended as a sustainable alternative. In the present study, mechanical properties, as well as resistance to freezing and thawing cycles (F-T) of low plasticity clay soil stabilized with different percentages of Portland cement (0, 6, 9, 12 and 15%) and diffe...

A study was carried out into the use of preformation process to prepare biochar for replacing coke breeze in iron ore sintering. Two types of preformation process, thermo-compression process (TCP) and normal temperature process (NTP), were adopted. Results show that preformation contributed to improving the density of both raw biomass and biochar. Recommended preformation parameters for TCP wer...

The combustion characteristics of pulverized coal when using blast furnace slag charged with iron ore containing rare earth elements as a composite catalyst were investigated by thermo gravimetric analysis. The results show that the combustion char acteristics of pulverized coal loaded with 21.3% by weight of blast furnace slag containing 15% rare earth ore are better than those of others. It i...

To the Editor: Many thanks for your interesting and informative special section on infectious diseases in the Amazon Region (1). Your readers should also be interested in a little known, but extremely successful, sustainable health program that had its start in the Amazon. In 1942, the governments of Brazil and the United States agreed to establish a special service for public health (called th...

Analyzing determinants that influence polychlorinated dibenzo-p-dioxin and polychlorinated dibenzofuran (PCDD/F) emissions is helpful for decision-makers to find effective and efficient ways to mitigate PCDD/F emissions. The PCDD/F emissions and the contributions of the scale effect, structure effect and technology effect to emissions from eight main industrial sectors in 2006, 2008 and 2010 in...

MSS. intended for publication and books, etc.intended for review should be se:nt to the Editor of &IecE; Garrison-.. ludsoia, N. Y~ THE SPIRIT OF ALCHEMY IN MODERN INDUSTRY NEVER in the history of the world has there been such a time of intense human activity as the present: never a time of such gigantic undertakings, such marvelous achievements. Notwithstanding, the curve of progress is still ...