Control of the Forming Behavior of Anosovite in the Reduction of Ilmenite by Hydrogen

Autor:	Andrew Yakovlevich Travyanov, Tao Jiang, Pengfei Li, Guanzhou Qiu, Zheng Fuqiang, Yufeng Guo
Rok vydání:	2015
Předmět:	Materials science Hydrogen Magnesium Inorganic chemistry chemistry.chemical_element engineering.material law.invention Reduction (complexity) chemistry Optical microscope law Impurity engineering Hydrogen concentration Ilmenite Titanium
Zdroj:	6th International Symposium on High-Temperature Metallurgical Processing ISBN: 9783319486031 6th International Symposium on High-Temperature Metallurgical Processing
DOI:	10.1007/978-3-319-48217-0_78
Popis:	Low content of TiO2 and high impurities content of Ca and Mg are the shortcomings of domestic ilmenite. To meet the requirements of the material in the titania produced by chlorination process and titanium sponge industry, enrichment of ilmenite is necessary. In the process of enriching ilmenite, high temperature and reductive condition were beneficial to the formation of anosovite, but the high content of magnesium oxide which was solid soluble in anosovite baffled the following separation. So the effects of pre-oxidation and reductive conditions including reduction temperature, reduction time and hydrogen concentration on the phase composition and metallization rate were studied. The characteristics of reduction samples were analyzed by X-ray diffraction and optical microscope. Results have shown that the reduction product is mainly composed of Fe, Fe(Mg)TiO3 and TiO2 at 1123K, its metallization rate is about 65%,magnesium exists in Fe(Mg)TiO3.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0486102cae4b6fd0a2fec1d1c9177e6 https://doi.org/10.1007/978-3-319-48217-0_78 Zobrazit plný text záznamu