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    “Cold Briquetted Iron and Carbon (CBIC)”, Investigation of Oxidation Behavior in Environmental Conditions and Steelmaking Performance

    , Ph.D. Dissertation Sharif University of Technology Paknahad, Pouyan (Author) ; Askari, Masoud (Supervisor)
    Abstract
    Cold Briquetted Iron and Carbon (CBIC) is a new product in Direct Reduced Iron (DRI) family that aims to produce a reliable product from Cold Direct Reduced Iron (CDRI) with the ability of low risk, high efficient storage and handling. In this study, a comprehensive investigation was carried out on the effects of environmental condition on physical and chemical properties of CBIC, CDRI and Hot Briquetted Iron (HBI) in the first step and then, the steelmaking performance of this new product was compared to the other DRI products in the second step. The changes of microstructure, specific surface area, metallization degree and mechanical strength of different products with time in dry and... 

    Study the Effect of Carbon Content Exist in Midrex Cold Briquetted Sponge Iron on Melting Performance and Comparison with DRI and HBI

    , M.Sc. Thesis Sharif University of Technology Ranjbar, Hassan (Author) ; Askari, Masoud (Supervisor)
    Abstract
    Midrex sponge iron is an active product and there are several problems with store and export it.Cold briquetting sponge iron method is a new method to protect sponge iron from oxidation and provides the possibility of its storage and transportation. Iran as one of the biggest countries that produce sponge iron, has a lot of sponge iron pilots that equipped with cold briquetted machines,but their production capacity is limited and is about 5 percent of their production capacity. With regard to no need for country to these amount of sponge iron, most of these pilots have to store and transport large volumes of sponge iron and the risk of oxidation and fire threatens these units.By using cold... 

    Cold briquetting of sponge iron (CBSI): Parameters and effectiveness

    , Article Ironmaking and Steelmaking ; Volume 38, Issue 6 , May , 2011 , Pages 442-446 ; 03019233 (ISSN) Tavakoli, M. R ; Askari, M ; Farahani, M ; Shahahmadi, A ; Sharif University of Technology
    2011
    Abstract
    The oxidation of sponge iron products and its destructive effects on iron content as well as other properties have been considered by ferrous technologists for a long time. In this investigation, a unique new low temperature method of preventing and/or retarding the oxidation of direct reduced iron is introduced. Experimental results from laboratory and pilot plant tests show the success of the method which has been named cold briquetting of sponge iron. The optimum condition for briquetting is achieved at 80 kN (Lcm)-1, 6% binder, 10% sponge iron fines and 4% anthracite. While hot briquetted iron has become a successful method for the new generation of iron reduction plants, cold...