Results 11 to 20 of about 18,682 (226)

Transestérification des acrylates par catalyse basique hétérogène [PDF]

open access: yes, 2013
We present an original study of the use of solid basic catalysts in the transesterification reaction of acrylates. The reaction of ethyl acrylate with n-hexanol was chosen as model reaction. The catalysts employed, based on alumina modified with alkalin,
Maldonado Barrios, Adriana
core   +3 more sources

Optimisation De La Production De L’huile Du Suif De Bœuf Pour La Fabrication De Biodiesel Par Transestérification [PDF]

open access: yes, 2021
Le changement climatique est devenu l’un des problèmes majeurs de notre ère ainsi que la sécurité énergétique, le développement de nouvelles sources d’énergie écologique et durable est primordial.
Andrianaivo, L.   +4 more
core   +1 more source

Développement de nouveaux procédés de transestérification de triglycérides en microréacteurs - Applications : biocarburants, biodétergents, biosolvants [PDF]

open access: yes, 2009
National audienceL’objectif de la thèse est d’étudier de nouveaux types de réacteurs permettant de dépasser les limites des technologies actuelles pour la transestérification de triglycérides avec de l’éthanol (ou bioéthanol).
Thiebaud-Roux, Sophie   +2 more
core   +2 more sources

Sequence‐Controlled Copolymers Through Selective Ring‐Opening Polymerization of Multiunit Macrolactones [PDF]

open access: yesAdvanced science
Sequence‐controlled polymers were prepared through ring‐opening polymerization (ROP) exploiting esters with enhanced reactivity in the multiunit monomer induced by incorporation of a glycolate group, enabling selective ROP. ABSTRACT A new strategy for the synthesis of sequence‐controlled polymers (SCP), in which increased ester reactivity by the ...
Nieboer V   +4 more
europepmc   +2 more sources

Research of technology for tranesterification of oils and fats on efficient catalysts [PDF]

open access: yesE3S Web of Conferences
The state and prospects for the development of technology for transesterification catalysts are analyzed. The technological processes of transesterification of vegetable oils and solid fats using new modifications of effective catalysts have been studied.
Oltiev Azim   +3 more
doaj   +1 more source

Variability of Omega-3/6 Fatty Acid Obtained Through Extraction-Transesterification Processes from Phaeodactylum tricornutum

open access: yesActa Chimica Slovenica, 2021
The effect of direct transesterification methods on the omega-3/6 composition of extracts from Phaeodactylum tricornutum was studied. The aim of this work was to identify an extraction method which allowed to obtain the most suitable profile of fatty ...
Mari Carmen Ruiz-Dominguez   +6 more
doaj   +1 more source

Advances in Biodiesel Production from Microalgae

open access: yesEnergies, 2023
Biofuels, as a renewable, eco-friendly, and cost-effective energy source, can reduce the dependence on fossil fuels. The researchers considered different approaches for obtaining high biodiesel yields from microalgae biomass. This work aims to present an
Emilia Neag   +3 more
doaj   +1 more source

Acid catalysed transesterification of animal waste fat

open access: yesResearch in Agricultural Engineering, 2009
Rendering plant fat (RPF) was collected and different conditions were used for transesterification. The course of transesterification of RPF was compared with that of transesterification of lard under the same conditions.
A. Prošková   +3 more
doaj   +1 more source

Transesterification of a Natural Epoxythymol Is Favored under Alkaline Conditions, Preserving the Enantiomeric Purity

open access: yesChemistry Proceedings, 2023
Transesterification is a synthetic chemistry strategy promoted in acid or alkaline conditions, yielding a structural diversity of organic compounds. Epoxythymols comprise a class of chiral natural compounds with biological relevance, and the literature ...
Jessica M. Lorenzo-García   +6 more
doaj   +1 more source

Microfluid on Chip Transesterification Reaction and Real-Time Monitor by PN Diode Photodetector

open access: yesInternational Journal of Electrochemical Science, 2012
Biodiesel is a renewable fuel made by a chemical reaction of alcohol and vegetable or animal oils, fats, or greases. Through a refinery process called transesterification.
Chun-Chi Chen   +4 more
doaj   +1 more source

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