Synthesis of Fe-Mn Black Pigments by Using Hematite Waste and Manganese Ore Mixtures
TRANSACTIONS OF THE INDIAN CERAMIC SOCIETY, vol.71, no.1, pp.17-20, 2012 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 71 Issue: 1
- Publication Date: 2012
- Doi Number: 10.1080/0371750x.2012.689506
- Journal Name: TRANSACTIONS OF THE INDIAN CERAMIC SOCIETY
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.17-20
- Eskisehir Osmangazi University Affiliated: Yes
Abstract
In this study, development of a new black pigment for colouring porcelain tiles by calcination of hematite waste and natural manganese ore mixtures were investigated as a way to produce cost-effective pigment. It was found that by incorporating 10 wt% manganese ore (containing about 75 wt% MnO2) into hematite waste (containing about 97 wt% Fe2O3), a black pigment can be obtained. The black pigment predominantly contained hematite phase indicating that manganese was dissolved in hematite structure, changing the brown colour of hematite into black colour.