This article reports an efficient unmechanical comminution technology for smashing attapulgite.Aiding with dispersant

ultrasonic hydrothermal method is able to realize ultrafine comminution without any damage of crystal structure in attapulgite treatment.The relational experiment was adopted to explore the optimal condition of ultrasonic hydrothermal method aided with poly（acrylic acid） dispersant for obtaining ultrafine attapulgite.The granularity d

90

of treated attapulgite was below 3.14 μm

which was easy dispersed in water over again.The results of X-ray diffraction（XRD） show that（poly（acrylic） acid） is very useful in ultrafine dispersing attapulgite with some rarefied ability.The results of scanning electron microscope（SEM） prove the attapulgite after treatment present ideal loose acerose crystal structure.Energy dispersive spectroscopy（EDS）

thermogravimetric analyzer and fouier transform-infrared spectrum indicate that the enwrapping function of poly（acrylic acid） to attapulgite is the key factor for ultrafine attapulgite forming and its dispersed stability.