Int. J. Mol. Sci. 2012, 13(2), 2148-2159; doi:10.3390/ijms13022148
Article

Benzyl and Methyl Fatty Hydroxamic Acids Based on Palm Kernel Oil as Chelating Agent for Liquid-Liquid Iron(III) Extraction

1 Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia 2 School of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia 3 Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia 4 Advanced Materials and Nanotechnology Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
* Authors to whom correspondence should be addressed.
Received: 26 December 2011; in revised form: 29 January 2012 / Accepted: 8 February 2012 / Published: 16 February 2012
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Abstract: Liquid-liquid iron(III) extraction was investigated using benzyl fatty hydroxamic acids (BFHAs) and methyl fatty hydroxamic acids (MFHAs) as chelating agents through the formation of iron(III) methyl fatty hydroxamate (Fe-MFHs) or iron(III) benzyl fatty hydroxamate (Fe-BFHs) in the organic phase. The results obtained under optimized conditions, showed that the chelating agents in hexane extract iron(III) at pH 1.9 were realized effectively with a high percentage of extraction (97.2% and 98.1% for MFHAs and BFHAs, respectively). The presence of a large amount of Mg(II), Ni(II), Al(III), Mn(II) and Co(II) ions did affect the iron(III) extraction. Finally stripping studies for recovering iron(III) from organic phase (Fe-MFHs or Fe-BFHs dissolved in hexane) were carried out at various concentrations of HCl, HNO3 and H2SO4. The results showed that the desired acid for recovery of iron(III) was 5 M HCl and quantitative recovery of iron(III) was achieved from Fe(III)-MFHs and Fe(III)-BFHs solutions in hexane containing 5 mg/L of Fe(III).
Keywords: Iron extraction; methyl fatty hydroxamic acid; benzyl fatty hydroxamic acid; iron(III) methyl fatty hydroxamate; iron(III) benzyl fatty hydroxamate; palm kernel oil

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MDPI and ACS Style

Haron, M.J.; Jahangirian, H.; Silong, S.; Yusof, N.A.; Kassim, A.; Rafiee-Moghaddam, R.; Mahdavi, B.; Peyda, M.; Abdollahi, Y.; Amin, J. Benzyl and Methyl Fatty Hydroxamic Acids Based on Palm Kernel Oil as Chelating Agent for Liquid-Liquid Iron(III) Extraction. Int. J. Mol. Sci. 2012, 13, 2148-2159.

AMA Style

Haron MJ, Jahangirian H, Silong S, Yusof NA, Kassim A, Rafiee-Moghaddam R, Mahdavi B, Peyda M, Abdollahi Y, Amin J. Benzyl and Methyl Fatty Hydroxamic Acids Based on Palm Kernel Oil as Chelating Agent for Liquid-Liquid Iron(III) Extraction. International Journal of Molecular Sciences. 2012; 13(2):2148-2159.

Chicago/Turabian Style

Haron, Md Jelas; Jahangirian, Hossein; Silong, Sidik; Yusof, Nor Azah; Kassim, Anuar; Rafiee-Moghaddam, Roshanak; Mahdavi, Behnam; Peyda, Mazyar; Abdollahi, Yadollah; Amin, Jamileh. 2012. "Benzyl and Methyl Fatty Hydroxamic Acids Based on Palm Kernel Oil as Chelating Agent for Liquid-Liquid Iron(III) Extraction." Int. J. Mol. Sci. 13, no. 2: 2148-2159.

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