Royani, Idha and Ramlan, Ramlan (2020) FEASIBILITY STUDY OF MAGNETITE EXTRACTED FROM INDONESIAN MILL SCALE THROUGH DIRECT REDUCTION PROMOTED BY GRAPHITE BASED CARBON. FEASIBILITY STUDY OF MAGNETITE EXTRACTED FROM INDONESIAN MILL SCALE THROUGH DIRECT REDUCTION PROMOTED BY GRAPHITE BASED CARBON, 55 (1). pp. 192-197. ISSN 1314-7471
Preview |
Text
FEASIBILITY STUDY OF MAGNETITE EXTRACTED FROM INDONESIAN MILL SCALE THROUGH DIRECT REDUCTION PROMOTED BY GRAPHITE BASED CARBON.pdf Download (701kB) | Preview |
Abstract
Mill scale (MS) is a solid by-product of hot or cold rolling processes in steelmaking industry. It contains iron oxide in the form of magnetite, hematite and wustite. It has fairly high iron content, which is predominantly in the form of hematite (that of metallic Fe amounts only to 0.2 wt. %). The present investigation refers to the development of a direct reduction of MS aiming to increase the magnetite phase presence. Graphite based carbon (GBC) is used as a reducing agent. The procedure includes raw materials (MS, GBC) pre-heating for 30 min at 300oC. The subsequent step refers to a reduction of MS/GBC mixtures (of vol. % content of 20:80, 30:70, 50:50, 70:30, 80:20) in the course of high energy milling within 30 min. Pellets are then obtained at a loading of 100 MPa for 1 min and sintering for 1 h at 1300oC in an inert atmosphere. They are crushed into a powder, which is separated from the impurities present by a magnetic separator. The reduction product is characterized using an X-ray diffractometer (XRD), a vibrating sample magnetometer (VSM) and Gauss meter.
| Item Type: | Article |
|---|---|
| Subjects: | Q Science > QC Physics > QC1-999 Physics #3 Repository of Lecturer Academic Credit Systems (TPAK) > Corresponding Author |
| Divisions: | 08-Faculty of Mathematics and Natural Science > 45102-Physics (S2) |
| Depositing User: | Dr Idha Royani |
| Date Deposited: | 16 Jun 2023 02:43 |
| Last Modified: | 16 Jun 2023 02:43 |
| URI: | http://repository.unsri.ac.id/id/eprint/70068 |
Actions (login required)
 |
View Item |