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5. Dairyman
Slag is made up of oxides from the ore gangue, additions and mineral matter (ash) from coke and coal. Reactions in the crucible between cast iron and liquid slag lead to a division of elements between cast iron and slag; the latter therefore plays a role in purifying the cast iron, particularly as regards sulfur.
5.1 Chemical characteristics of slag
Slag consists of four main oxides, CaO, SiO 2 , Al 2 O 3 , MgO, which account for between 95 and 98% of its composition. The remainder is made up of numerous constituents in small quantities, such as FeO, MnO, Na 2 O, K ...
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Dairyman
Mechanisms of cast iron and slag formation
Bibliography
Software tools
Fact Sage Integrated Data Base: thermodynamic database of mineral species; online tools for calculating reaction quantities, complex multiphase equilibria and phase diagrams:
http://www.crct.polymtl.ca/factsage/fs_general.php
JANAF: thermodynamic data table for mineral species; online calculation...
Websites
Metallurgical Research and Technology: formerly Revue de Métallurgie; articles on cast iron production; online article summaries and abstracts; calendar of forthcoming conferences of interest to Metallurgy :
http://www.metallurgical-research.org/
ISIJ International: an open-access Japanese technical journal publishing...
Events
EUROPEAN STEEL TECHNOLOGY AND APPLICATION DAYS (ESTAD)
International conferences organized every 2 years jointly by the 4 main European steel metallurgy federations; the conference includes several sessions on blast furnace ironmaking:
ICSTI (International Congress on Science...
Standards and norms
- Iron ores for blast furnace charges and direct reduction processes – Determination of cohesion and abrasion indices. - ISO 3271 :2015 -
- Iron ore for blast furnace charges – Determining reducibility from reduction speed. - ISO 4695 :2015 -
- Iron ore for blast furnace charges – Determination of disintegration indices by low-temperature reduction using the static method – Part 1: Reduction with CO, CO2, H2...
Directory
Engineering companies supplying equipment, instrumentation and technical solutions in the blast furnace sector; regular publication of technical magazines.
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