Results 141 to 150 of about 243,772 (175)
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The kinetics of epoxidation of trimethylolpropane ester
European Journal of Lipid Science and Technology, 2012AbstractKinetics pertaining epoxidation reaction of a palm oil‐based synthetic lubricant trimethylolpropane (TMP) ester were investigated. The epoxidation reaction of TMP ester was carried out utilizing peracetic acid generated by an in situ technique. The analysis of the reaction kinetics was performed within the low temperature (30, 50, and 60°C) and
Ferra Naidir +5 more
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High-Boiling By-Products of the Synthesis of Trimethylolpropane and Their Processing Into Esters
Russian Journal of Applied Chemistry, 2022D. V. Marochkin +5 more
exaly +2 more sources
Esters of oxypropylated trimethylolpropanes as synthetic lubricants
Industrial Lubrication and Tribology, 2007PurposeThe paper aims to study the effects of introducing oxypropyl segments into the trimethylolpropane (TMP) esters along with lowering the linear chain length from C5‐C9 to C5‐C6 on the properties of base lubricants.Design/methodology/approachVarious amounts of oxypropylene segments were introduced into the TMP skeleton and obtained polyols ...
Firdovsi Tataroglu Sejidov +1 more
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Synthesis and Optimization of Trimethylolpropane Rapeseed Oil Ester
Advanced Materials Research, 2014Lubricant base oil is an environmentally friendly lubricant with good lubricity and biodegradability. The thermostability and stability of rapeseed oil get improved through chemical modification. Fatty acid methyl ester (FAME),prepared by rapeseed oil as starting material with methanol by transesterification,the composition of FAME was detected by gas ...
Ying Wang, Cun Zhou, Guo Zheng, Yu Sun
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Bioresource Technology, 2010
A mathematical model describing chemical kinetics of transesterification of palm-based methyl esters with trimethylolpropane has been developed. The model was developed by utilizing nonlinear regression method, which is an efficient and powerful way to determine rate constants for both forward and reverse reactions.
Suzana Yusup, Ruzaimah Nik Mohamad Kamil
exaly +3 more sources
A mathematical model describing chemical kinetics of transesterification of palm-based methyl esters with trimethylolpropane has been developed. The model was developed by utilizing nonlinear regression method, which is an efficient and powerful way to determine rate constants for both forward and reverse reactions.
Suzana Yusup, Ruzaimah Nik Mohamad Kamil
exaly +3 more sources
Esters of the cyclic butyral of trimethylolpropane -components of synthetic oil
Chemistry and Technology of Fuels and Oils, 19711. Esters of the cyclic butyral of trimethylolpropane and mixtures of C7-C9 or C10-C16 acids were synthesized. 2. According to their physicochemical properties, the esters obtained can be used as components of synthetic oils. 3.
S. Z. Kaplan +2 more
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JAOCS, Journal of the American Oil Chemists' Society, 1998
AbstractBiodegradable trimethylolpropane [2‐ethyl‐2‐(hydroxymethyl)‐1,3‐propanediol] esters of rapeseed oil fatty acids were synthesized by transesterification with rapeseed oil methyl ester both by enzymatic and chemical means, both in bench and pilot scales. Nearly complete conversions were obtained with both techniques. A reduced pressure of about 2
Yu-Yen Linko, Pekka Linko
exaly +2 more sources
AbstractBiodegradable trimethylolpropane [2‐ethyl‐2‐(hydroxymethyl)‐1,3‐propanediol] esters of rapeseed oil fatty acids were synthesized by transesterification with rapeseed oil methyl ester both by enzymatic and chemical means, both in bench and pilot scales. Nearly complete conversions were obtained with both techniques. A reduced pressure of about 2
Yu-Yen Linko, Pekka Linko
exaly +2 more sources
Journal of the Air & Waste Management Association, 2020
In this study, an eco-friendly renewable biodegradable alternative to petroleum-based oil lubricants was produced using espresso coffee wastes. Waste coffee oil used as raw material was extracted from Espresso coffee wastes by Soxhlet and conventional solvent extraction. Free fatty acids (FFA) were obtained by hydrolysis of the obtained waste oil using
Unugul, Tuba +3 more
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In this study, an eco-friendly renewable biodegradable alternative to petroleum-based oil lubricants was produced using espresso coffee wastes. Waste coffee oil used as raw material was extracted from Espresso coffee wastes by Soxhlet and conventional solvent extraction. Free fatty acids (FFA) were obtained by hydrolysis of the obtained waste oil using
Unugul, Tuba +3 more
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Synthesis of Trimethylolpropane Esters as Potential Insulating Oil Base Stocks
2019 IEEE 20th International Conference on Dielectric Liquids (ICDL), 2019The trimethylolpropane esters (TME) based high performance electrical insulating oil was synthesized by esterification of the mixture of C 6 , C 8 and C 10 acids blend with trimethylolpropane (TMP). The electrical performance is significantly improved by a purpose-oriented purification process which is structured by washing with ultrapure water and ...
Feipeng Wang +5 more
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On the Mechanism of Alcoholysis between Fatty Acid Methyl Esters and Trimethylolpropane
Med Discoveries, 2023This paper reports on a previously undescribed mechanism of the alcoholysis of fatty acid methyl esters with a polyol, in particular,
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