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The Purification of Swelled-ground

GENG Aifang, WANG Wei, YAN Jinghui (Dept.Of Materials And Chemistry Engineering Of Changchun Institude Of Optics And Fine Mechanics 130022)  
Montmarillanite is researched and purified analysis from its construction . The degree of white of purified montmarillanite rises very much. The 2 percent of sample is separated at speed of 1, 500 revolutions per minute with centrifuge for 5 minutes. The appearances of separation level dosent appear.
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