Desulphurization characteristics of ladle furnace slags of a low sulphur steel

Date

2007-10-01

Author

Keskinkilic, E.
Geveci, Ahmet
Topkaya, Yavuz Ali

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

180
views

0
downloads

In steelmaking, one of the most important parameters for desulphurization is the oxygen potential of the system which can be expressed either by oxygen activity of the steel or by FetO activity of the slag. Removal of sulphur from the steel is enhanced when FetO activity of the slag and thus oxygen activity of the steel decreases. In this paper, ladle furnace slags of a low S steel quality currently produced in Eregli Iron and Steel Works Company (ERDEMIR), Turkey, were studied. Activity coefficients of FetO, gamma(FetO) were calculated with the relation obtained from the literature. The relation between %Decrease a(FetO) and %DeS (measured) was studied. The percentage of sulphur removal was also investigated using the data of the oxygen activity of liquid steel.

Subject Keywords

Metallurgy & Metallurgical Engineering

URI

https://hdl.handle.net/11511/31286

Journal

CANADIAN METALLURGICAL QUARTERLY

DOI

https://doi.org/10.1179/cmq.2007.46.4.391

Collections

Graduate School of Natural and Applied Sciences, Article

Suggestions

OpenMETU
Core

Combinatorial study of hydrogen storage alloys Ölmez, Rabia; Öztürk, Tayfur; Department of Metallurgical and Materials Engineering (2009) A combinatorial study was carried out for hydrogen storage alloys which involve processes similar to those normally used in their fabrication. The study utilized a single sample of combined elemental (or compound) powders which were milled and consolidated into a bulk form and subsequently deformed to heavy strains. Material library was obtained in a post annealing treatment carried out at elevated temperatures which brings about solid state reactions between the powders yielding equilibrium phases in the r...
Hot dynamic consolidation of aifevsi alloy powders Kotan, Şevkiye Ezgi; Kalkanlı, Ali; Department of Metallurgical and Materials Engineering (2005) The experimental alloy powders of 1% Mg treated Al-8Fe-1.8V-8Si were obtained by air atomization. The screen analysis of powders was made by sieves with meshes ranging from +90æm, +63æm, +53æm, +45æm, +38æm to -38æm. Unreinforced and TiC particulate reinforced specimens were produced by hot dynamic consolidation which is known as hot swaging. Powders were canned into pure aluminium tubes of about 10cm length and 2.2cm diameter. Single action and double action cold pressing were applied to some of the specim...
Texture softening and strain instability in F.C.C. metals: Plane-strain deformation Öztürk, Tayfur; Davies, Gwilym J. G (Elsevier BV, 1987-9) An analysis was carried out into texture induced softening and the resulting strain instability in plane-strain deformation. A macroscopic model was employed in the analysis which viewed the deformation as the juxtaposition of suitably disposed positive and negative simple shears. With this model, the textural contribution to the rate of deformation hardening was computed in terms of a texture softening factor, S, this in a form that could readily be incorporated into the relevant conditions for strain inst...
Design of a high temperature erosion apparatus for testing of boiler tubes Ergün, Hüseyin; Öztürk, Tayfur; Doruk, Mustafa; Department of Metallurgical and Materials Engineering (2010) In this thesis an apparatus is designed which enables the testing of thermal power plant boiler tubes against erosion. The apparatus makes use of a tube sample directly cut from the boiler tubes and simulates conditions similar to those prevailing in boilers in lignite fired power plants. The apparatus is composed of three components; a furnace for heating the sample, a loading system which allows application of tensile stresses while allowing the rotation of the sample, and a particle blower that delivers ...
Hydrogen sulfide determination by solid surface luminescence Eroglu, AE; Volkan, Mürvet; Bayramh, E; Ataman, Osman Yavuz; Mark, HB (1996-07-01) In the analytical system suggested, atmospheric hydrogen sulfide reacts with the surface of a filter paper treated with aqueous cadmium chloride and yields a luminescent species whose intensity can be correlated with the analyte concentration in ambient air. It was shown that the luminescent species are CdS solid particles which were formed in a well defined size. The paper luminescence was also tried on polymeric surfaces; polyethyleneoxide, polyvinyl alcohol, ethylcellulose and carboxymethylcellulose were...

Citation Formats

E. Keskinkilic, A. Geveci, and Y. A. Topkaya, “Desulphurization characteristics of ladle furnace slags of a low sulphur steel,” CANADIAN METALLURGICAL QUARTERLY, pp. 391–396, 2007, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/31286.