%0 Journal Article %T 我国典型拜耳法高铁赤泥的工艺矿物学研究
Study on Process Mineralogy of Typical High-Iron Red Mud Derived from Bayer Process in China %A 王相愚 %A 王洪阳 %A 赵宇琪 %A 周慧丽 %A 张震 %J Metallurgical Engineering %P 197-209 %@ 2373-1486 %D 2024 %I Hans Publishing %R 10.12677/meng.2024.114024 %X 采用化学分析、X射线衍射(XRD)、矿物特征自动定量分析系统(AMICS)、扫描电镜(SEM)、X射线能谱仪(EDS)等分析手段，对我国典型拜耳法高铁赤泥的化学组成、矿物组成、矿物嵌布及矿物解离度进行分析。结果表明：低温拜耳法高铁赤泥中Fe2O3和Al2O3质量分数分别为58.25%和18.87%；主要物相为铝针铁矿和赤铁矿，其质量分数分别为65.40%和13.05%；赤铁矿的平均粒径为15.54 μm，其解离度 ≥ 80%的质量百分数为10.61%。高温拜耳法高铁赤泥中Fe2O3和Al2O3质量分数分别为37.05%和21.36%；主要物相为赤铁矿、钙铁石榴石和钙霞石，其质量分数分别为36.48%、22.83%和13.88%；赤铁矿的平均粒径为18.66 μm，其解离度 ≥ 80%的质量百分数为30.57%。该研究为拜耳法高铁赤泥中有价组分提取新技术的开发提供指导。
The chemical composition, mineral composition, mineral distribution, and mineral dissociation degree of typical high-iron red mud derived from Bayer process in China were systematically studies with the analysis methods of chemical analysis, X-ray diffraction, advanced mineral identification and characterisation system, scanning electron microscope, and energy dispersive spectrometer. The results show that the main minerals in low-temperature red mud, in which there are 58.25% of Fe2O3 and 18.87% of Al2O3, are alumogeothite and hematite with mass ratio of 65.40% and 13.05%, respectively. The mean particle size of hematite is 15.54 μm, and about 10.61% of hematite exists with dissociation degree of ≥80%. The content of Fe2O3 and Al2O3 in high-temperature red mud are 37.05% and 21.36%. The main minerals are hematite, andradite and cancrinite, with mass ratio of 36.48%, 22.83% and 13.88%, respectively. The mean particle size of hematite is 18.66 μm, and about 30.57% of hematite exists with dissociation degree of ≥80%. The results may provide a reference for developing a new technology for extracting valuable components from high-iron red mud derived from Bayer process. %K 拜耳法， %K 高铁赤泥， %K 工艺矿物学， %K 赤铁矿， %K 铝针铁矿
Bayer Process %K High-Iron Red Mud %K Process Mineralogy %K Hematite %K Alumogeothite %U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=103805