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Antiwear additive derived from soybean oil and boron utilized in a gear oil formulation / Brajendra K. Sharma in Industrial & engineering chemistry research, Vol. 51 N° 37 (Septembre 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 37 (Septembre 2012) . - pp. 11941–11945 Titre : Antiwear additive derived from soybean oil and boron utilized in a gear oil formulation Type de document : texte imprimé Auteurs : Brajendra K. Sharma, Auteur ; Kenneth M. Doll, Auteur ; Glenn L. Heise, Auteur Année de publication : 2012 Article en page(s) : pp. 11941–11945 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Lubricant  additives Résumé : The synthesis of lubricant additives based on boron and epoxidized soybean oil are presented. These additives are made from a simple patent pending method involving a ring-opening reaction of the epoxidized oil. A couple of these borates were tested in soybean oil, polyalpha olefin basestock, group III basestock, and hexadecane. An aromatic additive was able to increase the oxidation onset of the basestocks by 14, 52, 48, and 49 °C, respectively, when used at 2% wt. The other additive was shown to reduce the wear scar diameter in a friction test when used in soybean oil basestock, from 0.61 mm down to 0.41 mm. These additives were also tested in a gear oil blend, and shown to reduce both wear and oxidation. They were also compatible with a popular additive, additive zinc dialkyl dithiophosphate. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie301519r [article] Antiwear additive derived from soybean oil and boron utilized in a gear oil formulation [texte imprimé] / Brajendra K. Sharma, Auteur ; Kenneth M. Doll, Auteur ; Glenn L. Heise, Auteur . - 2012 . - pp. 11941–11945. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 37 (Septembre 2012) . - pp. 11941–11945 Mots-clés : Lubricant  additives Résumé : The synthesis of lubricant additives based on boron and epoxidized soybean oil are presented. These additives are made from a simple patent pending method involving a ring-opening reaction of the epoxidized oil. A couple of these borates were tested in soybean oil, polyalpha olefin basestock, group III basestock, and hexadecane. An aromatic additive was able to increase the oxidation onset of the basestocks by 14, 52, 48, and 49 °C, respectively, when used at 2% wt. The other additive was shown to reduce the wear scar diameter in a friction test when used in soybean oil basestock, from 0.61 mm down to 0.41 mm. These additives were also tested in a gear oil blend, and shown to reduce both wear and oxidation. They were also compatible with a popular additive, additive zinc dialkyl dithiophosphate. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie301519r

Epoxidation of methyl oleate using heterogeneous catalyst / Paulo A. Z. Suarez in Industrial & engineering chemistry research, Vol. 48 N° 7 (Avril 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 7 (Avril 2009) . - pp. 3268–3270 Titre : Epoxidation of methyl oleate using heterogeneous catalyst Type de document : texte imprimé Auteurs : Paulo A. Z. Suarez, Auteur ; Mírian S. C. Pereira, Auteur ; Kenneth M. Doll, Auteur Année de publication : 2009 Article en page(s) : pp. 3268–3270 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Alumina  Catalytic  activity  Methyl  oleate  Hydrogen  peroxide  solution Résumé : In this work, we studied the catalytic activity of commercial alumina, and laboratory-synthesized alumina doped with Lewis acid metals, in the epoxidation of methyl oleate with aqueous hydrogen peroxide. It was observed that the reaction yields increased when the amount of catalyst, the quantity of hydrogen peroxide, the concentration of the hydrogen peroxide solution, or the surface area of the catalyst was increased. Reaction yields decreased when the surface acidity of the alumina was modified by doping with Lewis acid metals. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801635b [article] Epoxidation of methyl oleate using heterogeneous catalyst [texte imprimé] / Paulo A. Z. Suarez, Auteur ; Mírian S. C. Pereira, Auteur ; Kenneth M. Doll, Auteur . - 2009 . - pp. 3268–3270. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 7 (Avril 2009) . - pp. 3268–3270 Mots-clés : Alumina  Catalytic  activity  Methyl  oleate  Hydrogen  peroxide  solution Résumé : In this work, we studied the catalytic activity of commercial alumina, and laboratory-synthesized alumina doped with Lewis acid metals, in the epoxidation of methyl oleate with aqueous hydrogen peroxide. It was observed that the reaction yields increased when the amount of catalyst, the quantity of hydrogen peroxide, the concentration of the hydrogen peroxide solution, or the surface area of the catalyst was increased. Reaction yields decreased when the surface acidity of the alumina was modified by doping with Lewis acid metals. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801635b