Titania preparation from soda roasted slag using sulfuric acid solution

This work deals with treatment of the sodium titanate cake results from roasted titania slag using 60% sulfuric acid solution. The working sample produced by roasting titania slag with NaCO3 at 850°C. After roasting V and Cr species as impurities in the roasted sample are converted to water soluble...

Full description

Saved in:
Bibliographic Details
Published in:Journal of Saudi Chemical Society 2016-11, Vol.20 (6), p.673-679
Main Author: Manaa, El-Sayed A.
Format: Article
Language:English
Subjects:
Chromium
Na2CO3
Oxalic acid
Sodium titanate
TiO2
Titania slag
Vanadium
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This work deals with treatment of the sodium titanate cake results from roasted titania slag using 60% sulfuric acid solution. The working sample produced by roasting titania slag with NaCO3 at 850°C. After roasting V and Cr species as impurities in the roasted sample are converted to water soluble species as NaVO3 and Na2CrO4 before acid treatment however, the insoluble sodium titanate products (NaFeTiO4, Na8Ti5O14, Na6Ti2O7 and Na2TiO4) are then subjected to H2SO4 acid dissolution. The produced sulfate solution is subjected to hydrolysis step in presence of oxalic acid as a reducing agent. The hydrolyzed precipitate after filtration and washing with H2SO4 solution and warm water is dried at 100°C and calcinated at 850°C to prepare high pure TiO2 (99.8%) besides removing ferrous sulfate (FeSO4) as a byproduct from the sulfate solution.
ISSN:1319-6103
DOI:10.1016/j.jscs.2014.12.005