磁处理对粘土矿物比表面的影响

Effects of Magnetic Treatment on Specific Surface Area of Clay Minerals

本文主要研究了几种粘土矿物经磁处理后，比表面值的变化以及覆胡敏酸胶膜、覆无定形氧化铁胶膜及覆无定形氧化铝胶膜等对粘土矿物比表面的磁致效应的影响。研究发现，磁处理可显著降低粘土矿物的比表面。不同粘土矿物质的比表面磁降效应以高岭石＞伊利石＞蒙脱石；同一粘土矿物覆不同腹膜后，比表面磁降效应不一，一般以来覆膜＞覆胡敏酸膜＞覆氧化铁膜；而覆氧化铝腹膜的粘土矿物，在磁处理后其比表面呈增加趋势。此外，试验结果还表明，磁致比表面降低效应，可在粘土矿物上至少保持９０ｄ。

The research results showed that magnetic treatment significantlyreduced the speific surface area of several clay minerals. thereduction brought by magnetic treatment was in the sequence:K1>It> Mt;After coated different films,the magnetism--reduced effectsofdifferent caly minerals were in following order:original surface> oxide Fe filmhowever, the clay minerals coated oxide Al showed anincerease of surface area after magnetic trecatment. In addition,theexperimental results also indicated that the obover magnetic effectsonspecific surface area conuld remain at least 90d