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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。
In this paper, the magnetic properties of several clay minerals after magnetic treatment, the change of specific surface area and the magnetostriction of the specific surface of clay minerals, such as the film covered with humic acid, covered with amorphous iron oxide film and covered with amorphous alumina film, Effect of the effect. The study found that magnetic treatment can significantly reduce the specific surface area of clay minerals. The specific surface magnetic drop effect of different clay minerals is kaolinite> illite> montmorillonite. When the same clay mineral is coated on different peritoneum, the effect of specific surface magnetic drop is different. Generally, Iron oxide film; and coated with peritoneal alumina clay minerals, the surface area of the magnetic treatment showed an increasing trend. In addition, the test results also show that the magnetostrictive surface reduction effect, clay minerals can be maintained at least 90d.