| 淀粉类多糖在方解石和萤石表面吸附特性及作用机理 |
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| 引用本文： | 李晔 刘奇. 淀粉类多糖在方解石和萤石表面吸附特性及作用机理[J]. 有色金属, 1996, 48(1): 26-30,15 |
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| 作者姓名： | 李晔 刘奇 |
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| 作者单位： | 武汉工业大学 |
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| 摘 要： | 通过吸附试验，Ｘ－射线光电子能谱（ＸＰＳ）和俄歇电子能谱（ＡＥＳ）、浮选试验、系统地研究了糊精在萤石和方解石表面作用行为，结果发现，方解石经糊精作用前后ＣａＬＭＭ俄歇参数变化值为０．８０ｅＶ，变化显著，这说明糊精与方解石表面作用为化学键合；而萤石经糊精处理前后ＣａＬＭＭ俄歇参数变化值为－０．２０ｅＶ，变化不明显，说明糊精与萤石表面化学作用很弱，更接近物理作用－氢键作用；浮选试验结果证实了测试结果可
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| 关 键 词： | 糊精 方解石 萤石 吸附 浮选 选矿 |
ADSORPTION PROPERTIES AND INTERACTION MECHANISM OF STARCH-TYPE POLYSACCHARIDES ONTO FLUORITE AND CALCITE |
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| Li Ye,Liu Qi, Xu Shi. ADSORPTION PROPERTIES AND INTERACTION MECHANISM OF STARCH-TYPE POLYSACCHARIDES ONTO FLUORITE AND CALCITE[J]. Nonferrous Metals, 1996, 48(1): 26-30,15 |
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| Authors: | Li Ye Liu Qi Xu Shi |
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| Abstract: | The interaction behavior of dextrin on fluorite and calcite has been investigated systematically through measurement of dextrin adsorption densities, X-ray Photoelectron Spectroscopy(XPS),Auger Electron Spectroscopy and flotation tests. The results show that before and after interaction with dextrin CaLMM Auger parameters of calcite show significant chemical shifts (0.80eV), indicating that dextrin interacts chemically with calcite.However CaLMM Auger parameter shift of calcium ions in fluorite is -0.20 eV,and the small chemical shift after interaction with dextrin reveals a very weak chemical interaction. It may be physical in nature hydrogen-bonded. Flotation test results have proved the reliability of measurement results. |
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| Keywords: | dextrin calcite fluorite adsorption interaction mechanism flotation |
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