Paper Title:
Preparation and Application Performance Study of High Purity Montmorillonite
  Abstract

In order to research the colloidal and thixotropic performance of the inorganic gel prepared by high purity montmorillonite, this study uses the moderate grade bentonite ores from Weifang (China) as raw material. Two-stage hydrocyclone classification was applied to obtain the high purity montmorillonite with its content of 94.8 per cent. In contrast to other methods of montmorillonite purification, two-stage purification by hydroclone has the advantages of larger throughput and easily achieving auto-control in industry, and products with different montmorillonite content can be obtained by this method. And then the inorganic gel was prepared by the prepared high purity montmorillonite , its colloidal and thixotropic performances were further studies. Research results show that the inorganic gel belongs to plastic body liquidity, the viscosity decreases with the increase of the shear rate, the static and dynamic shearing stress values are 33.98 Pa and 91.89 Pa respectively, and the thixotropic value is 95.2 dyne·s/cm2, which indicates that it has preferable colloidal and thixotropic performance. Montmorillonite inorganic gel prepared by bentonite with high montmorillonite content and low- layer charge has better gel performance. The application result of inorganic gel in dentifrice and medicine shows that it has excellent effect.

  Info
Periodical
Advanced Materials Research (Volumes 284-286)
Chapter
Other related topics
Edited by
Xiaoming Sang, Pengcheng Wang, Liqun Ai, Yungang Li and Jinglong Bu
Pages
2420-2426
DOI
10.4028/www.scientific.net/AMR.284-286.2420
Citation
J. Qiu, X. D. Liu, X. J. Lu, G. F. Wang, "Preparation and Application Performance Study of High Purity Montmorillonite", Advanced Materials Research, Vols. 284-286, pp. 2420-2426, 2011
Online since
July 2011
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Price
$32.00
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