对伊利石原矿和采用擦洗分散-离心分选方法选矿提纯后的精矿吸附溶液中四环素的饱和吸附量、吸附动力学和热力学进行了研究,并考察了pH值对四环素在伊利石上吸附效果的影响.结果表明,伊利石原矿与选矿提纯后的伊利石精矿在常温条件下(T=25℃)的饱和吸附量分别为28.11 mg/g与45.37 mg/g;pH值为4～6时伊利石有较好的吸附效果;准二级动力学方程对伊利石吸附四环素分子的过程描述更为准确;伊利石对四环素的等温吸附过程符合Langmuir等温吸附模型,是一个不可逆的自发吸热过程,吸附热力学参数吉布斯自由能(△G0)＜0,焓变(△H0)＞0,熵变(△S0)＞0.
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