Adsorption of β‐carotene: II. On cation exchanged bleaching clays
作者： K. Y. Liew , S. H. Tan , F. Morsingh , L. E. Khoo
DOI: 10.1007/BF02636147
关键词: Cristobalite 、 Kaolinite 、 Qualitative inorganic analysis 、 Clay mineral X-ray diffraction 、 Adsorption 、 Metal 、 Ion exchange 、 Chemistry 、 Montmorillonite 、 Inorganic chemistry
摘要: X-ray diffraction patterns of a number commercial bleaching earths indicate that they consist mainly montmorillonite mixed with smaller amount kaolinites as well mica, quartz and cristobalite. The active sites in these for the adsorption β-carotene are identified through ion exchange found to be protonic some metallic ions. efficiencies various cations imparting activities order Mg2+ > Fe3+ H+ Ca2+ Na+. For exchanged clays, activity was linear function concentration high clays discussed.
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