Recovery of lanthanides from indonesian low grade bauxite using oxalic acid

Eny Kusrini, Zakaria Jaka Bahari, Anwar Usman, Arif Rahman, Eko Adi Prasetyanto

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

5 Citations (Scopus)

Abstract

The present work describes the extraction of lanthanide (rare earth elements, REE) from low grade bauxite using acid leaching method. The aim of this study is to obtain the best condition for extraction of lanthanides from low grade bauxite. The effect of different parameters such as temperatures and concentration of oxalic acid in leaching process were investigated. The content of La, Ce and Y elements were determined using ICP-OES. The experimental result shows that the efficiencies of lanthanide leaching are the temperature-dependent. Increasing leaching temperature from 45°C to 85°C did not improve recoveries of lanthanides. The most optimum condition was found at oxalic acid leaching of 1 mol/L, leaching temperature at 40o C, and time for 2 hours. The obtained results show that the lanthanides can be leached using oxalic axid. This finding may lead to more effective and economical method to separate lanthanides from low grade bauxite.

Original languageEnglish
Title of host publicationAdvanced Materials Research - QiR 15
EditorsArdiyansyah Yatim
PublisherTrans Tech Publications Ltd
Pages171-176
Number of pages6
ISBN (Print)9783035712667
DOIs
Publication statusPublished - 1 Jan 2018
Event15th International Conference on Quality in Research, QiR 2017 - Nusa Dua, Bali, Indonesia
Duration: 24 Jul 201727 Jul 2017

Publication series

NameMaterials Science Forum
Volume929 MSF
ISSN (Print)0255-5476

Conference

Conference15th International Conference on Quality in Research, QiR 2017
CountryIndonesia
CityNusa Dua, Bali
Period24/07/1727/07/17

Keywords

  • Lanthanide
  • Leaching
  • Low grade bauxite
  • Oxalic acid
  • Recovery

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