会议专题

Preparation of Eco-friendly Composite Ceramic from Iron Ore Tailings

In this paper, the research mainly focused on utilization of iron ore tailing of Panzhihua region. Based on the analysis of its components, Carbothermal Reduction Nitridation (CRN) method was selected to synthesize eco-friendly composite material. Different additives were tried to improve the property of the samples. The influence of different sintering temperature, holding time and contents of additives were taken into account, and orthogonal design was employed to obtain the optimal parameters. It indicated that only when the temperature was 1450℃ and the holding time was 5 hours, the samples with the bulk density of 3.42g/cm3 was obtained. The phase and surface morphology were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Experimental results showed that the phases of the product were Fe3Si and TiC0.3N0.7. The research provided a novel recycling process for ore tailings.

Eco-friendly Composite ceramic Iron ore tailing Carbothermal Reduction Nitridation Orthogonal design

Ming LIU Lihua XU Xiaomeng ZHANG Hongshun HAO Yunping DI

Departement of Inorganic Non-metallic Materials, University of Science and Technology Beijing,Beijing 100083, China

国际会议

2008年中美材料国际研讨会

重庆

英文

281-284

2008-06-09(万方平台首次上网日期,不代表论文的发表时间)