Iron Metallurgy via Concentrated Solar Energy

González, Daniel Fernández; Prażuch, J.; Ruiz-Bustinza, I.; González-Gasca, C.; Piñuela-Noval, J.; González, Luis Felipe Verdeja

doi:10.3390/met8110873

Cited by 23 publications

(5 citation statements)

References 33 publications

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“…For example, the CO 2 mitigation dosage is 11.75 kg/ton sinters when 15% solid fuel is replaced with NG. 16) Therefore, carbon emissions from the sintering process could be significantly reduced if clean energy sources could be used instead of solid fuels, such as hydrogen-rich gaseous fuels, microwave energy, electricity, solar thermal energy 17,18) and biomass energy. 19,20) Our team has showed an innovated sintering process without carbon in raw materials.…”

Section: Introductionmentioning

confidence: 99%

Effect of Process Parameters on Mineralisation Consolidation in Carbon-free Iron Ore Sintering Process

Jiang,

Chen,

Zhou

et al. 2023

ISIJ Int.

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Sintering, as one of the major sources of carbon emissions in the steel industry, is in urgent need of innovation in carbon reduction technology under the targets of carbon peaking and carbon neutrality in China. We propose the carbon free sintering process which is similar to the belt roaster, where heat is provided by gas fuel combustion for the layer. In order to achieve the process, this study uses the microsintering method to simulate it by varying the sintering temperature, sintering time and binary basicity of the mixture. It was investigated the process of mineralisation solidification of carbon-free sintering and to provide relevant guidance for future carbon-free sintering process experiments. As the sintering temperature increased, the strength and calcium ferrite of the samples first increased and then decreased, reach the maximum value at 1 300°C and 1 275°C respectively. However, the porosity of the samples first decreased and then increased, reach the minimum value at 1 275°C. As the sintering time increased, the strength and calcium ferrite first increased and then decreased, reach the maximum values at 12 min and 6 min respectively, and the porosity of the samples first decreased and then increased, reach the minimum values at 6 min. As the binary basicity increased, the strength of the samples first decreased and then increased, reach the minimum value at basicity 1.8, and the calcium ferrite and porosity of the samples gradually increased. The carbon-free sintering process does not change the consolidation process of iron ore, and it has theoretical feasibility.

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Section: Introductionmentioning

confidence: 99%

Effect of Process Parameters on Mineralisation Consolidation in Carbon-free Iron Ore Sintering Process

Jiang,

Chen,

Zhou

et al. 2023

ISIJ Int.

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“…Solar energy has taken growing interest in the last decades with the development of renewable energy sources, and particularly when properly concentrated, this energy source can be used in high temperature applications, as those that can be read in Fernández-González et al, 2018 [1], and, for instance, in our case, we used solar energy in the synthesis of calcium aluminate cement [2] and in the iron metallurgy [3].…”

Section: Introductionmentioning

confidence: 92%

Silicomanganese and Ferromanganese Slags Treated with Concentrated Solar Energy

González

Piñuela-Noval

González

2018

The 2nd International Research Conference on Sustainable Energy, Engineering, Materials and Environment

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Solar energy when properly concentrated offers a great potential in high temperature applications as those required in metallurgical processes. Even when concentrated solar energy cannot compete with conventional metallurgical processes, it could find application in the treatment of wastes from these processes. These by-products are characterized by their high metallic contents, which make them interesting as they could be a raw material available in the own factory. Slags are one of these by-products. Slags are most of them disposed in controlled landfill with environmental impact, but also with economic impact associated to the storing costs and the metallic losses. Here we propose the treatment of ferromanganese and silicomanganese slags with concentrated solar energy with the purpose of evaluating the recovery of manganese from these slags.

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“…These researchers can be read in the extended review published in 2018 in the journal Solar Energy with the title Concentrated solar energy applications in materials science by Fernández-González and collaborators [48]. Focusing on our research group, the investigation has focused on the: synthesis of calcium aluminates [49], iron metallurgy [50,51], the treatment of Basic Oxygen Furnace (BOF) slag [52], the production of silicomanganese [53], and transformations in the Ca-Si-O system [54]. The objective of the present Case Study is to present an application of concentrated solar energy in the copper metallurgy: potential recovery of copper and iron from copper slag using solar energy as heat supply for the process.…”

Section: Case Study: Application Of Concentrated Solar Energy To the ...mentioning

confidence: 99%

Copper Overview: From the Ore to the Applications – A Case Study of the Application of Concentrated Solar Energy to the Treatment of Copper Metallurgy Slags

Fernández-González,

Felipe Verdeja González

2023

Copper - From the Mineral to the Final Application

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Copper is a metal that is widely used in different applications mainly due to its thermal and electrical conductivities, together with its corrosion resistance, particularly when it is alloyed. This chapter intends to be a summary of the copper metallurgy: from the historical aspects and mineral deposits or statistics to the different technologies used to produce metallic copper together with the distinct applications (of copper and copper alloys). Environmental issues are deeply rooted in industrial policies to improve the recovery of the metal as well as to minimize the residues generated in the process, which are a problem from the environmental point of view but also from the economic standpoint. Therefore, this document concludes with a research work carried out with the aim of treating copper slags with concentrated solar energy to recover valuable elements from these slags, as iron and copper. Results from this investigation suggest that solar energy could have an enormous potential in the copper metallurgy.

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Iron Metallurgy via Concentrated Solar Energy

Cited by 23 publications

References 33 publications

Effect of Process Parameters on Mineralisation Consolidation in Carbon-free Iron Ore Sintering Process

Effect of Process Parameters on Mineralisation Consolidation in Carbon-free Iron Ore Sintering Process

Silicomanganese and Ferromanganese Slags Treated with Concentrated Solar Energy

Copper Overview: From the Ore to the Applications – A Case Study of the Application of Concentrated Solar Energy to the Treatment of Copper Metallurgy Slags

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