用炼油厂废白土制备有机膨润土的研究(I)──废白土的提纯

Study on organic bentonite by using waste clay from refinery (I)-the purification of waste clay

对炼油厂废白土的脱蜡脱油工艺及脱蜡脱油后度白土的湿法提纯工艺进行了实验研究，并用阳离子交换容量（ＣＥＣ）和吸蓝量（Ｍ．Ｂ．）来表征提纯废白土的活性和蒙脱石含量，找到了废白土提纯的最佳工艺条件。

The processes of the purification after dewaxing or deoiling waste clay from refinery and of the purification afterdewaxed or deoiled waste clay were studied. The activity and content of montmorillonite from purified waste clay werecharacterized by CEC and M.B. values. The experimental results show the optimum procedure of waste clay purification.