Investigation of pyrometallurgical nickel pig iron (NPI) production process from lateritic nickel ores

Onuralp Yucel*, Ahmet Turan, Haul Yildirim

*Corresponding author for this work

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

7 Citations (Scopus)

Abstract

Nickel is mainly used in stainless steel production as ferronickel. In recent years, low grade ferronickel or nickel pig iron (NPI) is used in stainless steel production to reduce expenditure of nickel price. In this study, Turkey East Anatolian region lateritic nickel ores were directly introduced carbothermal reduction to produce NPI. Firstly the raw lateritic ore that contains 0.9% Ni, 0.054% Co and 2.3% Cr was mixed with metallurgical grade coal at different stiochometric ratios. The samples were smelted at 1600-1650°C temperature range in an induction furnace for 25 min. In the second experimental set, different processes times were carried out from 15 to 35 min. The raw material, obtained alloys and slags were analyzed by using XRD (X-Ray Diffractometer), XRF (X-Ray Fluorescence Spectrometer), AAS (Atomic Absorption Spectrometer) and EPMA (Electron Probe Micro Analyzer) techniques.

Original languageEnglish
Title of host publication3rd International Symposium on High-Temperature Metallurgical Processing - Held During the TMS 2012 Annual Meeting and Exhibition
PublisherMinerals, Metals and Materials Society
Pages17-23
Number of pages7
ISBN (Print)9781118291412
DOIs
Publication statusPublished - 2012
Event3rd International Symposium on High-Temperature Metallurgical Processing - TMS 2012 Annual Meeting and Exhibition - Orlando, FL, United States
Duration: 11 Mar 201215 Mar 2012

Publication series

NameTMS Annual Meeting

Conference

Conference3rd International Symposium on High-Temperature Metallurgical Processing - TMS 2012 Annual Meeting and Exhibition
Country/TerritoryUnited States
CityOrlando, FL
Period11/03/1215/03/12

Keywords

  • Lateritic nickel ore
  • Nickel pig iron

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