Variation of oxygen flow rate on nickel and iron content in the oxidation refining process of crude Fe-Ni from Mini Blast Furnace (MBF)

Sungging Pintowantoro*, Kevin Oktandria, Rafiedhia A.M. Pasha, Fakhreza Abdul

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

The high demand for nickel commodities for the application of various aspects such as stainless steel, batteries, alloys, etc. It is a challenge for Indonesia to develop laterite nickel ore processing to be more optimal. One alternative technology for laterite nickel ore processing is the combination of smelting through mini blast furnace and refining through oxidation refining. The oxidation refining utilizes metal's affinity for oxygen. Oxygen flow rate is an important parameter to be studied because of the role of oxygen as a metal oxidizer. The variables of the oxygen flow rate used were 1.5, 2.0, 2.5, 3.0, and 3.5 liter/min. The oxidation refining process began with the preparation of tools and crude Fe-Ni material and its mass was calculated at 20 grams. Then, an EDX test was performed to determine the chemical composition contained in the sample and XRD to determine the compound in the sample, after which the mass balance and heat balance were calculated. The oxidation refining process was then carried out at 1550°C with an independent variable oxygen flow rate and a fixed control variable LPG flow rate of 0.06m/s. Finally, an analysis using XRD and EDX were conducted to calculate the yield. In this study, it was found that the Nickel content increased with increasing oxygen flow rate during the refining process. The highest Nickel content (36.3%) was obtained by using an oxygen rate of 3.5 liter/min. The compound formed in the oxidation refining product was FeNi (Taenite). The highest yield (89.1%) obtained when using a variable oxygen flow rate of 2.0 liter/min.

Original languageEnglish
Title of host publication4th International Conference on Materials and Metallurgical Engineering and Technology, ICOMMET 2020
EditorsMas Irfan Purbawanto Hidayat, Amaliya Rasyida
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735441743
DOIs
Publication statusPublished - 30 Dec 2021
Event4th International Conference on Materials and Metallurgical Engineering and Technology, ICOMMET 2020 - Surabaya, Indonesia
Duration: 19 Oct 2020 → …

Publication series

NameAIP Conference Proceedings
Volume2384
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference4th International Conference on Materials and Metallurgical Engineering and Technology, ICOMMET 2020
Country/TerritoryIndonesia
CitySurabaya
Period19/10/20 → …

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