Depressive effect of oxalic acid on titanaugite during ilmenite flotation |
| |
| Affiliation: | 1. Institute of Multipurpose Utilization of Mineral Resources, CAGS, Chengdu 610041, China;2. Changsha Research Institute of Mining and Metallurgy Co., Ltd., Changsha 410012, China;3. Key Laboratory of Vanadium-Titanium Magnetite Comprehensive Utilization, Ministry of Land and Resources, Chengdu 610041, China;4. Research Center of Multipurpose Utilization of Metal Mineral Resources of China Geological Survey, Chengdu 610041, China;1. Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan, PR China;2. School of Resources Processing and Bioengineering, Central South University, Changsha, Hunan, PR China;3. State Key Laboratory of Mineral Processing, Beijing, PR China;4. Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Science, Chengdu, Sichuan, PR China;1. Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan, PR China;2. School of Chemical Engineering, Sichuan University, Chengdu, Sichuan, PR China;3. School of Resources Processing and Bioengineering, Central South University, Changsha, Hunan, PR China;4. Key Laboratory of Biohydrometallurgy, Ministry of Education, Central South University, Changsha 410083, PR China;1. School of Environment and Resource, Southwest University of Science and Technology, Mianyang, Sichuan 621010, PR China;2. Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan 621010, PR China;3. Key Laboratory of Vanadium-titanium Magnetite Comprehensive Utilization, Ministry of Land and Resources, Chengdu, Sichuan 610000, PR China |
| |
| Abstract: | Ilmenite and titanaugite have very similar physiochemical properties. Iron, titanium, calcium, magnesium, and other metal ions exist on the surface of both minerals, making it difficult to separate the two minerals. In this study, oxalic acid was used as a depressant in the microflotation of ilmenite and titanaugite and the depressive effect of oxalic acid toward titanaugite was demonstrated. Through a series of microflotation, oxalic acid composition analysis, reaction thermodynamic calculations, and XPS analysis, oxalic acid was found to significantly and selectively inhibit titanaugite. Oxalic acid was adsorbed onto mineral surfaces via a chemical chelating reaction with metal ions, predominately Ca2+. Therefore, oxalic acid selectively depressed titanaugite during ilmenite flotation. |
| |
| Keywords: | Oxalic acid Titanaugite Selective inhibition mechanism |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
