摘要
研究了风化壳稀土矿的腐植酸及其特点，证实了富里酸与Ｌａ，Ｃｅ，Ｐｒ，Ｓｍ，Ｅｕ，Ｇｄ，Ｔｂ，Ｙ在常温常压下，ｐＨ值在４～６．５之间形成配合物的可能性．根据荧光光谱和红外光谱研究，探讨了自然界中风化条件下富里酸与稀土元素之间的化学行为及在风化壳稀土矿形成过程中腐植酸的作用．
The humic acid and its characteristics in the weathering crust REE deposits were studied. The possibility of formation of compounds between humic acid and La, Ce, Pr, Sm, Eu, Gd, Tb and Y under normal temperature and pressure and pH 4￣6 5 was confirmed. Based on the studies of fluorescence and infrared spectra, the chemical interactions between humic acid and REEs under weathering conditions and the role of fluvic acid in the formation of weathering crust REE deposits were explored.
出处
《中山大学学报（自然科学版）》
CAS
CSCD
1996年第5期102-107,共6页
Acta Scientiarum Naturalium Universitatis Sunyatseni
基金
国家自然科学基金
有机地球化学国家重点实验室资助
关键词
腐植酸
配合物
风化壳
稀土元素
成矿作用
humic acid, REE, complex, weathering crust, fluorescenc spectrum, infrared spectra
