The Mineral Carbonation Using Steelmaking Reduction Slag
نویسندگان
چکیده
منابع مشابه
Roles of Mineralogical Phases in Aqueous Carbonation of Steelmaking Slag
Mineralogical phases of steelmaking slags have significant influences on the carbonation of the slags. In this paper, the effects of temperature and reaction time on the conversion of calcium-related phases and the carbonation degree of a slag sample were studied. The experimental conditions were a liquid-to-solid ratio of 20 mL/g, a carbon dioxide flow rate of 1 L/min and a slag particle size ...
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This study investigates a new concept of producing precipitated calcium carbonate (PCC) from steelmaking slag and carbon dioxide via a spray carbonation process. The presented laboratory-scale spray carbonation test reactor uses a spray nozzle to disperse fine droplets of a Ca-rich solution into a spray tower, where calcium carbonate precipitates as a result of the reaction between calcium and ...
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About 40 million tons of steel slag a year, which is the by-product of iron and steel manufacture, is generated in Japan and the almost all the slag is reused for the materials, e.g. cement raw material, road base course material and civil engineering material, by effectively utilizing its characteristics such as chemical components and mechanical properties. Most of its purposes of uses are to...
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This paper attempts to illustrate the benefits of using slag models based on the thermodynamics of steelmaking reactions and the multi-dimensional modeling of phase equilibria. The use of mass balance calculations and the application of these personal computer-based slag models to the refinement of standard operating procedures can simultaneously result in shorter process times, more predictabl...
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Over the past decades, the steel production has increased and, consequently, the higher volumes of by-products and residues generated have driven to the reuse of these materials in an increasingly efficient way. In recent years new technologies have been expanded, and some of them are still under developing, in order to improve the recovery rates of slags. On this subject material separation te...
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ژورنال
عنوان ژورنال: Economic and Environmental Geology
سال: 2017
ISSN: 1225-7281
DOI: 10.9719/eeg.2017.50.1.27