摘要
笔者对我国北方两种不同类型的高岭石进行了化学分析、差热和热重分析、X射线衍射、红外吸收光谱及电子顺磁共振等研究。结果表明,在酸性还原条件下形成的高岭石中,铁主要以Fe2+的形式置换结构中的Al3+,同时也有部分铁以亚铁化合物形式存在;在氧化条件下形成的高岭石中,铁主要以Fe3+形式存在于晶体结构和杂质铁氧化合物中,也有部分以Fe2+置换Al3+形式存在。
Two types of kaolinite in North China have been studied by chemical analysis, DTA, TG,XRD, IR and EPR. It is found that in the kaolinites formed in the acid-reduction environment Fe exists mainly in the form of Fe2+ replacing Al3+ and ferrous-oxide and in those formed in the oxidation environment, Fe exists mainly in the form of Fe3+ replacing Al3+ and ferric-oxide. Also, there is a part of Fe which exists in the fcrm of Fe2+ replacing Al3+.
出处
《矿物学报》
CAS
CSCD
北大核心
1994年第3期265-269,共5页
Acta Mineralogica Sinica