A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
MgO-ZrO2 refractory ceramics based on recycled magnesia-carbon bricks
https://orcid.org/0000-0002-5594-774X
Highlights Zirconia addition have positive effect on properties of magnesia refractories. Improvement of magnesia clinker properties coming from spent magnesia-carbon refractories by fusion with zirconia. Obtaining of refractories with good properties based on recycled spent magnesia refractories.
Abstract Magnesia-carbon (MgO-C) refractories are used in the steel industry, where, after their life cycle, they are replaced by new ones. Consequently, a large amount of spent MgO-C is produced and stored in landfills. This waste may be re-used as a potential source of secondary magnesia. In this study, calcined MgO-C waste was used to prepare magnesia-zirconia refractories. It was applied as an individual component of raw materials mix or in the form of fused magnesia-zirconia co-clinker, from which new refractories were produced. After firing at 1660 °C, properties like linear shrinkage, open porosity, apparent density, cold crushing strength, thermal shock resistance, pore size distribution, microstructure as well as resistance to corrosion were measured and determined. The research results indicate that recycling of spent MgO-C refractories is possible as we have obtained a material with satisfactory properties, which can be additionally improved by zirconia addition.
MgO-ZrO2 refractory ceramics based on recycled magnesia-carbon bricks
https://orcid.org/0000-0002-5594-774X
Highlights Zirconia addition have positive effect on properties of magnesia refractories. Improvement of magnesia clinker properties coming from spent magnesia-carbon refractories by fusion with zirconia. Obtaining of refractories with good properties based on recycled spent magnesia refractories.
Abstract Magnesia-carbon (MgO-C) refractories are used in the steel industry, where, after their life cycle, they are replaced by new ones. Consequently, a large amount of spent MgO-C is produced and stored in landfills. This waste may be re-used as a potential source of secondary magnesia. In this study, calcined MgO-C waste was used to prepare magnesia-zirconia refractories. It was applied as an individual component of raw materials mix or in the form of fused magnesia-zirconia co-clinker, from which new refractories were produced. After firing at 1660 °C, properties like linear shrinkage, open porosity, apparent density, cold crushing strength, thermal shock resistance, pore size distribution, microstructure as well as resistance to corrosion were measured and determined. The research results indicate that recycling of spent MgO-C refractories is possible as we have obtained a material with satisfactory properties, which can be additionally improved by zirconia addition.
MgO-ZrO2 refractory ceramics based on recycled magnesia-carbon bricks
https://orcid.org/0000-0002-5594-774X
Highlights Zirconia addition have positive effect on properties of magnesia refractories. Improvement of magnesia clinker properties coming from spent magnesia-carbon refractories by fusion with zirconia. Obtaining of refractories with good properties based on recycled spent magnesia refractories.
Abstract Magnesia-carbon (MgO-C) refractories are used in the steel industry, where, after their life cycle, they are replaced by new ones. Consequently, a large amount of spent MgO-C is produced and stored in landfills. This waste may be re-used as a potential source of secondary magnesia. In this study, calcined MgO-C waste was used to prepare magnesia-zirconia refractories. It was applied as an individual component of raw materials mix or in the form of fused magnesia-zirconia co-clinker, from which new refractories were produced. After firing at 1660 °C, properties like linear shrinkage, open porosity, apparent density, cold crushing strength, thermal shock resistance, pore size distribution, microstructure as well as resistance to corrosion were measured and determined. The research results indicate that recycling of spent MgO-C refractories is possible as we have obtained a material with satisfactory properties, which can be additionally improved by zirconia addition.
MgO-ZrO2 refractory ceramics based on recycled magnesia-carbon bricks
Kusiorowski, Robert (author)
2019-09-25
Article (Journal)
Electronic Resource
English
Development of refractory monolithics from recycled spent magnesia chrome bricks
| Tema Archive | 2000
Magnesia-carbon bricks - a high-duty refractory material
| Tema Archive | 2003
| European Patent Office | 2022