Production of magnesium metal from turkish calcined dolomite using vacuum silicothermic reduction method

Onuralp Yücel*, Selen Yiǧit, Bora Derin

*Corresponding author for this work

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

15 Citations (Scopus)

Abstract

In the present study, the production of magnesium metal from Turkish calcined dolomite containing 43.20 % MgO and 47.46 % CaO via Pidgeon process was studied under the pressure of 1 mbar. In the experiments, Turkish ferrosilicon containing 75 % Si and 24 % Fe was used as reducing agent. Effects of FeSi addition (90-150 % of stoichiometric requirement of silicon) and time (60-240 min.) were investigated on recovering of metallic magnesium from calcined dolomite (dolime) at the temperature of 1200°C. Effects of fluxing additive (CaF2), calcined magnesite and different temperatures on Mg recoveries and concentrations were also studied using with 100 % of stoichiometric requirement of silicon for 180 min. It was found that magnesium recovery increases with increasing FeSi addition, temperature, time, CaF 2 addition and decreases with increasing calcined magnesite additions under the pressure of 1 mbar.

Original languageEnglish
Title of host publicationMagnesium - Science, Technology and Applications, Mg - Proceedings of the International Conference on Magnesium - Science, Technology and Applications
PublisherTrans Tech Publications Ltd
Pages39-42
Number of pages4
ISBN (Print)0878499687, 9780878499687
DOIs
Publication statusPublished - 2005
EventInternational Conference on Magnesium - Science, Technology and Applications - Beijing, China
Duration: 20 Sept 200424 Sept 2004

Publication series

NameMaterials Science Forum
Volume488-489
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

ConferenceInternational Conference on Magnesium - Science, Technology and Applications
Country/TerritoryChina
CityBeijing
Period20/09/0424/09/04

Keywords

  • Calcined dolomite
  • FeSi
  • Silicothermic reduction

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