Preparation, decomposition and characterizations of Bangka - Indonesia Ilmenite (FeTiO3) derived by hydrothermal method using concentrated NaOH solution

Latifa Hanum Lalasari, F. Firdiyono, Akhmad Herman Yuwono, Sri Harjanto., Bambang Suharno

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

3 Citations (Scopus)

Abstract

Ilmenite is an economically important and interesting mineral. It is found as a by-product of tin mining in Bangka Indonesia. This mineral has can be used as the source of making titanium metal, titanium dioxide (TiO 2) pigment and material for photo catalysts. However, the synthesis of TiO 2 from ilmenite using both sulfate and chloride pr °Cesses still has faced a major problem to obtain white pigment of high purity and lower operation cost. This is mainly due to Fe 2O 3 impurity in TiO 2 pigment which cannot be easily decomposed. Therefore, this study is aimed at investigating the possibility of using Bangka ilmenite mineral to obtain TiO 2 pigments and phot °Catalysts. For this purpose, sodium hydroxide (NaOH) was used as decomposition solution via hydrothermal pr °Cess in a teflon-lined aut °Clave equipment. The characterization results indicated that Bangka ilmenite contains a significant TiO 2 level of more than 30 %, although there still remains some other impurities. Upon decomposition of dissolution using NaOH, was decrease in impurity elements down to 60 %. The decomposition pr °Cess of ilmenite was optimum at NaOH concentration of 10 M where the ilmenite decomposes to form an intermediate phase of sodium titanate with the morphological shape of fine threads

Original languageEnglish
Title of host publicationAdvanced Engineering Materials II
Pages750-756
Number of pages7
DOIs
Publication statusPublished - 9 Nov 2012
Event2nd International Conference on Advanced Engineering Materials and Technology, AEMT 2012 - Zhuhai, China
Duration: 6 Jul 20128 Jul 2012

Publication series

NameAdvanced Materials Research
Volume535-537
ISSN (Print)1022-6680

Conference

Conference2nd International Conference on Advanced Engineering Materials and Technology, AEMT 2012
CountryChina
CityZhuhai
Period6/07/128/07/12

Keywords

  • Decomposition
  • Hydrothermal
  • Ilmenite
  • Sodium hydroxide
  • Titanium dioxide

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