Review on the elaboration and characterization of ceramics refractories based on magnesite and dolomite

Abstract

One of the most important elements of furnaces, boilers and other heating units is the structure (lining), usually made of silica-alumina, basic or special refractories. The basic refractories are materials that are increasingly in demand and whose manufacturing involves necessarily the use of MgO and CaO. In this article, the description and characterization of magnesite (MgCO 3) and dolomite (Mg,Ca(CO 3) 2) and their contribution in industrial ceramics-refractories have been reviewed.

WITHDRAWN: Effects of Lizardite Addition on Technological Properties of Forsterite-Monticellite Rich White Ceramics Prepared From Natural Magnesite and Dolomite

“…Today, silica-alumina ceramics are widely used for lining furnaces (refractories), tiles, bricks, ladles, glass tank controllers and secondary refining vessels in ferrous and non-ferrous metallurgy, due to their high degree of refractoriness, high thermal shock resistance and excellent slag resistance [10][11]. At the same time, basic refractories can also be used in various fields as excellent robust material, resistant to heat and electricity, as well as good heat conductor [12]. To date, several research projects have been devoted to the recovery of materials in the field of ceramics, in particular the development and characterization of basic refractory ceramics due to their high refractory quality and their resistance to erosion and corrosion of metals and oxides [13][14][15][16][17][18][19][20][21][22][23].…”

Development of an Ultra-Low Carbon MgO Refractory Doped with α-Al2O3 Nanoparticles for the Steelmaking Industry: A Microstructural and Thermo-Mechanical Study

“…The mechanical resistance achieved by the A5 15 sample represents a double benefit since excellent mechanical properties are obtained and the lowest sintering temperature is used, taking into account that the sintering temperatures of MgO-based refractories range between 1500 and 1800 • C, which represents an important technological advance [1,2].…”

“…Since the introduction of magnesia (MgO), its use as a basic refractory has tremendously increased due to its reasonable cost, excellent chemical resistance to basic slags and fluxes at high temperatures, as well as a high melting point (2800 • C). These properties have made MgO-based refractories preferred by the iron, non-ferrous, and cement industries [1][2][3][4]. The iron industries have widely used magnesia in the steel-making process, where it is mainly applied in steel converters, electric arc furnaces, and ladle linings.…”

Sustainable Calcination of Magnesium Hydroxide for Magnesium Oxychloride Cement Production

“…The magnesium-based cement industry predominantly relies on the use of dolomitic lime as a precursor source of MgO (Liu et al 2015). However, deposits of dolomitic lime contain appreciable amounts of impurities, which are economically difficult to reduce (Sadik et al 2018). The MgO formed from these minerals may contain from 5% to 20% of Fe 2 O 3 , Al 2 O 3 , and CaO in varying proportions.…”