Preparation and Characterization of Acid and Alkaline Treated Kaolin Clay

*Sachin Kumar  -  Department of Chemical Engineering,, India
Achyut Kumar Panda  -  Department of Chemistry, School of Engineering and Technology, Bhubaneswar Campus, Centurion University of Technology and Management- 752050,, India
R. K. Singh  -  Department of Chemical Engineering , India
Received: 1 Mar 2013; Published: 19 Jun 2013.
Open Access
Citation Format:
bcrec 4530
Abstract

Kaolin was refluxed with HNO3, HCl, H3PO4, CH3COOH, and NaOH of 3M concentration at 110 °C for 4 hours followed by calcination at 550 °C for 2 hours. The physico-chemical characteristics of resulted leached kaolinite clay were studied by XRF, XRD, FTIR, TGA, DTA, SEM and N2 adsorption techniques. XRF and FTIR study indicate that acid treatment under reflux conditions lead to the removal of the octahedral Al3+ cations along with other impurities. XRD of acid treated clay shows that, the peak intensity was found to decrease. Extent of leaching of Al3+ ions is different for different acid/base treatment. The acid treatment increased the Si/Al ratio, surface area and pore volume of the clay. Thus, the treated kaolin clay can be used as promising adsorbent and catalyst supports. © 2013 BCREC UNDIP. All rights reserved

Received: 1st March 2013; Revised: 9th April 2013; Accepted: 19th April 2013

[How to Cite: Kumar, S., Panda, A. K., Singh, R.K. (2013). Preparation and Characterization of Acids and Alkali Treated Kaolin Clay. Bulletin of Chemical Reaction Engineering & Catalysis, 8 (1): 61-69. (doi:10.9767/bcrec.8.1.4530.61-69)]

[Permalink/DOI: http://dx.doi.org/10.9767/bcrec.8.1.4530.61-69]

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Keywords: Kaolin; acid/base treatment; physico-chemical characteristics; adsorbent; catalyst

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Article Info
Section: Original Research Articles
Language: EN
In 2013: BCREC Volume 8 Issue 1 Year 2013 (SCOPUS Indexed, June 2013)
Statistics: 4130 2551
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