Extracting phosphoric iron under laboratorial conditions smelting bog iron ores

2nd International Conference on Competitive Materials and Technological Processes

Török, B.^1 ; Thiele, A.^2

University of Miskolc, Institute of Metallurgical and Foundry Engineering, Hungary^1

Budapest University of Technology and Economics, Department of Material Science and Engineering, Hungary^2

关键词: Archaeometric;    High-content;    Iron blooms;    Laboratory models;    Material analysis;    Smelting experiments;    Technological parameters;    XRF analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/47/1/012034/pdf
DOI  :  10.1088/1757-899X/47/1/012034

来源: IOP

【 摘 要 】

In recent years it has been indicated by archaeometric investigations that phosphoric-iron (P-iron, low carbon steel with 0,5-1,5wt% P), which is an unknown and unused kind of steel in the modern industry, was widely used in different parts of the world in medieval times. In this study we try to explore the role of phosphorus in the arhaeometallurgy of iron and answer some questions regarding the smelting bog iron ores with high P-content. XRF analyses were performed on bog iron ores collected in Somogy county. Smelting experiments were carried out on bog iron ores using a laboratory model built on the basis of previously conducted reconstructed smelting experiments in copies of excavated furnaces. The effect of technological parameters on P-content of the resulted iron bloom was studied. OM and SEM-EDS analyses were carried out on the extracted iron and slag samples. On the basis of the material analyses it can be stated that P-iron is usually extracted but the P-content is highly affected by technological parameters. Typical microstructures of P-iron and of slag could also be identified. It could also be established that arsenic usually solved in high content in iron as well.