General Information
    • ISSN: 2010-0264 (Print)
    • Abbreviated Title: Int. J. Environ. Sci. Dev.
    • Frequency: Monthly
    • DOI: 10.18178/IJESD
    • Editor-in-Chief: Prof. Richard Haynes
    • Executive Editor: Ms. Nancy Y. Liu
    • Abstracting/ Indexing: Scopus (Since 2019), Chemical Abstracts Services (CAS), EBSCO, CABI, Ulrich Periodicals Directory, Electronic Journals Library, Crossref, ProQuest.
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The University of Queensland, Australia
It is my honor to be the editor-in-chief of IJESD. The journal publishes good papers in the field of environmental science and development.
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IJESD 2015 Vol.6(3): 205-210 ISSN: 2010-0264
DOI: 10.7763/IJESD.2015.V6.591

Dynamics of Mx+ Salts of Fatty Acids Adsorption onto Metallic Ores

Itodo Adams Udoji and Emmanuel Edet Etim
Abstract—Iron ore as possible adsorbent for metallic salts of fatty acid (Mx+-SFA) oils was investigated. Experimental constants from several kinetic models were used to interpret Mx+-SFA uptake. Mode of diffusion was also studied. Applicability tests for adopted models favors the Pseudo second order kinetics which presented high R2 values > of 0.9; high precision or least qcal/qexp values of ratio within 1.0 for the K+-SFA, Ca2+-SFA and Al3+-SFA sorption. The Pseudo second order equation also gave least values for the three error functions viz: 9.6×10-4 to 5.4×10-3, 3.1×10-2 to 7.4×10-2 and 4.6×10-3 to 2.5 ×10-3 for EABS, SSE and X2 respectively. Multiple linearity presented by intra-particle diffusion plots is of three distinct stages of linear initial, linear intermediate and linear last portions. These stages are coupled with the nonpassage of lines through the origin being an indication that other diffusion models such as mass transfer or film diffusion exists and that the intra-particle diffusion is not the only rate factor controlling Mx+-SFA sorption.

Index Terms—Surfactants, ores, kinetics, diffusion, metallic soap, adsorption.

A. U. Itodo is with the Department of Chemical Sciences, Federal University Wukari, Nigeria (e-mail:
E. E. Etim is with the Department of Chemical Sciences, Federal University Wukari as well is with Department of Inorganic and Physical Chemistry, India Institute of Science, 56012, Bangalore (e-mail:


Cite:Itodo Adams Udoji and Emmanuel Edet Etim, "Dynamics of Mx+ Salts of Fatty Acids Adsorption onto Metallic Ores," International Journal of Environmental Science and Development vol. 6, no. 3, pp. 205-210, 2015.

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