| 一水硬铝石—高岭石型铝土矿焙烧脱硅热力学机理研究 |
| |
| 引用本文： | 罗琳,刘永康.一水硬铝石—高岭石型铝土矿焙烧脱硅热力学机理研究[J].有色金属,1999,51(1):25-30. |
| |
| 作者姓名： | 罗琳 刘永康 |
| |
| 作者单位： | [1]北京矿冶研究总院 [2]北京市规划局 |
| |
| 基金项目： | 国家“九五”重点科技攻关项目 |
| |
| 摘 要： | 本文针对山西一水硬铝石－高岭石型高硅低铝土矿，应用差热、热重、红外光谱、高温Ｘ射线衍射在线分析等多种现代仪器分析研究了其焙烧热力学过程，得出了矿石中铝、硅、钛、铁、钙等主矿物在焙烧过程中物相变化规律。首次揭示了非晶态ＳｉＯ２及非晶态Ａｌ－Ｓｉ尖晶石的形成是焙烧脱硅工艺的实质所在。
|
| 关 键 词： | 高岭石型 铝土矿 焙浇脱硅 非晶态二氧化硅 |
THERMODYNAMIC MECHANISM OF ROASTING PRE-DESILICATION PROCESS OF DIASPORIC-KAOLIN TYPE BAUXITE |
| |
| LUO Lin.THERMODYNAMIC MECHANISM OF ROASTING PRE-DESILICATION PROCESS OF DIASPORIC-KAOLIN TYPE BAUXITE[J].Nonferrous Metals,1999,51(1):25-30. |
| |
| Authors: | LUO Lin |
| |
| Abstract: | The thermodynamic mechanism of roasting diasporic-kaolin type ban-cite in Shanxi has been investigated by means of TGA, DTA, XRD and infrared spectrometry. Rules of material phase tranSition of basic minerals and impurities, such as Al, Si, Ti, Fe minerals have also been recoghzed to control the roast process. It is brought to light for the first time that the foeing of amorphous SiO2 in roasting is the key to the pre-desilication process. |
| |
| Keywords: | kaolin type bauxite roasting pre-desilication amorphous SiO_2 |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
