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Issue 9, 2015
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One step synthesis of fatty acid diethanolamides and methyl esters from triglycerides using sodium doped calcium hydroxide as a nanocrystalline heterogeneous catalyst

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Abstract

Here, we report the preparation of a series of Na+-doped Ca(OH)2 in nanocrystalline form using a very simple method, and investigation of their catalytic activities towards one step aminolysis and transesterification of used cottonseed oil. The catalyst prepared by doping 3.5 wt% Na in Ca(OH)2 was found to exist in nanocrystalline form (particle size = 25–30 nm) as suggested by TEM and DLS studies and found to have the basic strength of 15.0 < H_ < 18.4 as supported by the Hammett indicator test. Na/Ca(OH)2 was used as a solid catalyst towards the aminolysis and transesterification of used cotton seed oil with diethanolamine and methanol, respectively. The catalyst was found to complete the aminolysis and transesterification of a variety of feedstocks even at room temperature and shows excellent reusability.

Graphical abstract: One step synthesis of fatty acid diethanolamides and methyl esters from triglycerides using sodium doped calcium hydroxide as a nanocrystalline heterogeneous catalyst

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Publication details

The article was received on 13 Feb 2015, accepted on 29 Jun 2015 and first published on 01 Jul 2015


Article type: Paper
DOI: 10.1039/C5NJ00388A
Author version available: Download Author version (PDF)
Citation: New J. Chem., 2015,39, 7097-7104
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    One step synthesis of fatty acid diethanolamides and methyl esters from triglycerides using sodium doped calcium hydroxide as a nanocrystalline heterogeneous catalyst

    D. Kumar, S. M. Kim and A. Ali, New J. Chem., 2015, 39, 7097
    DOI: 10.1039/C5NJ00388A

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