会议专题

Reduction of Ilmenite Pellets Under a CO-N2 Gas Mixture

The reduction of ilmenite pellets was investigated at 950℃ and 1000℃ under a CO-N2 gas mixture with 10 L/min gas flow rate. All the reducing reactions were conducted in a furnace with a thermogravimetric analysis system. The reduction rate is higher at 1000℃ than that at 950℃. At the early stage of the reactions, with the CO concentration increasing in the gas mixture, the reduction rate increased at 1000℃. In addition, at the early stage of the reactions, a rapid temperature increment and a rapid conversion of oxygen were observed on the curves of temperature versus time and conversion of oxygen versus time under different experimental conditions. The solid reaction products obtained in these experiments were analyzed by Scanning Electron Microscopy (SEM) and Energy Dispersive Spectrometers (EDS). Metallic Fe with small amount of Ti dissolved in it and oxides of Ti were found in the solid reaction products, but the formation of any intride phases was not found under the prevailing conditions.

Ilmenite Reduction Gas mixture

D. J. Zhao L. Kolbeinsen C. van der Eijk G. M. Tranell

Department of Materials Science and Engineering, Norwegian University of Science and Technology, Tro SINTEF Materials and Chemistry, Trondheim, Norway

国际会议

XXIV International Mineral Processing Congress(第24届国际矿物加工大会)

北京

英文

2235-2241

2008-09-24(万方平台首次上网日期,不代表论文的发表时间)