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| 含钙铝铁水解聚合产物的矿物学研究Ⅰ:形态和物相 | |
| 引用本文： | 章兴华,刘世荣,龚国洪,孙传敏,周丽芸,陆洋.含钙铝铁水解聚合产物的矿物学研究Ⅰ:形态和物相[J].矿物学报,2009,29(2). |
| 作者姓名： | 章兴华 刘世荣 龚国洪 孙传敏 周丽芸 陆洋 |
| 作者单位： | 1. 成都理工大学,地球科学学院,四川,成都,610059;贵州省监狱管理局,贵州,贵阳,550002 2. 中国科学院,地球化学研究所,矿床地球化学重点实验室,贵州,贵阳,550002 3. 成都理工大学,地球科学学院,四川,成都,610059 4. 贵州省环境保护局,贵州,贵阳,550002 5. 贵州省理化检测研究中心,贵州,贵阳,550002 |
| 基金项目： | 贵州省科学技术基金，四川省重点学科资助项目 |
| 摘 要： | 用X射线粉晶衍射分析技术结合热重分析、红外光谱及电镜观察对合成的含钙聚合氯化铝铁(PAFCCa)及其合成前体含钙聚合氯化铝(PACCa)、含钙聚合氯化铁(PFCCa)的低温干燥样进行了表征.XRD衍射结果表明,Ca(Ⅱ) 分别与Al(Ⅲ)、Fe(Ⅲ)都能形成结晶化合物,在PACCa中结晶化合物主要是Ca3Al2(OH)12,在PFCCa中结晶化合物主要是Ca4Fe14O25,在PAFCCa中形成Al-Ca-Fe三相结晶化合物铁取代的氯钙矾石结构体,其组成是(Ca6(Al,Fe)2(OH)4Cl2]3·20H2O).热重分析、红外光谱与电镜观察都支持了XRD的衍射结果. |
| 关 键 词： | 含钙聚合氯化铝铁 铁取代的氯钙矾石 表征形态 |
MINERALOGICAL INVESTIGATION OF CALCIUM-CONTAINING Al-Fe HYDROLY-SIS POLYMER PRODUCTS :Ⅰ. CHARACTERIZATION OF THEIR SPECIES |
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| ZHANG Xin-hua,LIU Shi-rong,GONG Guo-hong,SUN Chuan-min,ZHOU Li-yun,LU Yang.MINERALOGICAL INVESTIGATION OF CALCIUM-CONTAINING Al-Fe HYDROLY-SIS POLYMER PRODUCTS :Ⅰ. CHARACTERIZATION OF THEIR SPECIES[J].Acta Mineralogica Sinica,2009,29(2). | |
| Authors: | ZHANG Xin-hua LIU Shi-rong GONG Guo-hong SUN Chuan-min ZHOU Li-yun LU Yang |
| Abstract: | The synthesized calcium-containing polyaluminum ferric chloride (PAFCCa) and its co-aggregating materials calcium-containing polyaluminum chloride (PACCa) and calcium-containing polyferric chloride(PFCCa), characterized by X-ray diffraction(XRD) with thermal analysis(TG-DTG) and Fourier-Transform-Infrared Spectroscopy (FTIR),Transmission and Scan Electron Microscopy coupled with Energy Dispersive Spectroscopy (TEM-EDS, SEM-EDS) on the air-dried samples. The XRD patterns displayed that Ca(Ⅱ) combined with Al(Ⅲ) and Fe(Ⅲ) and formed crystalline phases Ca-Al-hydroxides (Ca3Al2(OH)12), Ca-Fe-oxides (Ca4Fe9O17), and Al-Ca-Fe-hydroxides (Ca2(Al,Fe)2O5) in PAFCCa, respectively. The hydrogrossular structure may be Ca6(Al,Fe)2(OH)4Cl2]3·20H2O). SEM observations showed that crystals of the air-dried sample with n(Al)/ n(Fe)＝3∶7. PAFCCa are large pellets made of smaller granules and crystals in n(Al)/ n(Fe)＝7∶3. PAFCCa are hollow tubes of ettringite-like structure, these are regarded as the direct evidence of different species when n(Al)/ n(Fe)＞6∶4 or n(Al)/ n(Fe)﹤6∶4 in PAFCCa solutions. The results are supported by TG-DTG and FTIR analyses. |
| Keywords: | Calcium-containing poly-aluminum-ferric-chloride hydrolysate Fe substituted chloride ettringite species characterization |
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