Facile production of biofuel via solvent-free deoxygenation of oleic acid using a CoMo catalyst

We have successfully demonstrated a facile, solvent-free synthesis of highly crystalline and monodisperse Fe3O4 nanocrystallites at ambient temperature avoiding any heating. Solid state reaction of inorganic Fe(II) and Fe(III) salts with NaOH was found to produce highly crystalline Fe3O4 nanoparticles. The reaction, if carried out in the presence of surfactant such as oleic acid–oleylamine adduct, generated monodisperse Fe3O4 nanocrystals extractable directly from the reaction mixture. The extracted nanoparticles were capable of forming self-assembled, two-dimensional and uniform periodic array. The new process utilizes inexpensive and nontoxic starting materials, and does not require a use of high boiling point and toxic solvents, thus is amenable to an environmentally desirable, large-scale synthesis of nanocrystals.

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Fascinating and challenging role of tungstate promoted vanadium phosphate towards solvent free esterification of oleic acid

Dalton Transactions ◽

10.1039/c1dt11318f ◽

2012 ◽

Vol 41 (4) ◽

pp. 1325-1331 ◽

Cited By ~ 14

Author(s):

Gobinda Chandra Behera ◽

K. M. Parida

Keyword(s):

Oleic Acid ◽

Solvent Free ◽

Vanadium Phosphate

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Optimization of the Solvent‐Free Lipase‐Catalyzed Synthesis of Fructose‐Oleic Acid Ester Through Programming of Water Removal

Journal of the American Oil Chemists Society ◽

10.1007/s11746-011-1791-2 ◽

2011 ◽

Vol 88 (9) ◽

pp. 1351-1359 ◽

Cited By ~ 21

Author(s):

Ran Ye ◽

Douglas G. Hayes

Keyword(s):

Oleic Acid ◽

Acid Ester ◽

Solvent Free ◽

Water Removal ◽

Free Lipase

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Oleic Acid Esterification in Solvent-Free Medium by Yarrowia lipolytica Lipase Immobilized on Fabric Membranes

Journal of Biobased Materials and Bioenergy ◽

10.1166/jbmb.2010.1068 ◽

2010 ◽

Vol 4 (1) ◽

pp. 73-78 ◽

Cited By ~ 2

Author(s):

Yong-Hong Meng ◽

Bi-Qiang Chen ◽

Na Yang ◽

Gui-Li Wang ◽

Ying Li ◽

...

Keyword(s):

Oleic Acid ◽

Yarrowia Lipolytica ◽

Solvent Free ◽

Free Medium ◽

Acid Esterification

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Studies on the Esterification Synthesis of Alkyl Oleates in Solvent-Free System by Candida Sp. Lipase

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.634-638.599 ◽

2013 ◽

Vol 634-638 ◽

pp. 599-603

Author(s):

Hui Zhong ◽

Zheng Fang ◽

Bao Hua Zou ◽

Xin Li ◽

Kai Guo

Keyword(s):

Oleic Acid ◽

High Selectivity ◽

Enzyme Concentration ◽

Solvent Free ◽

Hydroxyl Group ◽

Molar Ratio ◽

High Yield ◽

Free System ◽

Candida Sp ◽

Solvent Free System

The alkyl oleates were prepared by esterification of oleic acid with alkyl alcohols catalyzed by the lipase from Candida sp. 99-125 in solvent-free system. The influence of several factors, including enzyme concentration, temperature, molar ratio between oleic acid and alkyl alcohols and the structures of alcohols, was also investigated. The results indicated that the reactions catalyzed by lipase at 20 oC, in the presence of 5% (w/w) lipase, on the molar ratio of 1:1 between oleic acid and alcohols, afforded products in high yield and showed high selectivity to the alcohols with less hindrance on hydroxyl group. The lipase from Candida sp. 99-125 was identified to be an effective catalyst in the esterification of alcohol and oleic acid at low temperature.

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