Kinetic study of methyl oleate epoxidation under phase transfer catalysis by heat flow measurement was written by Jabbour, Michael;Ben Talouba, Imed;Balland, Laurent;Mouhab, Nordine. And the article was included in Journal of Thermal Analysis and Calorimetry.Product Details of 122-18-9 The following contents are mentioned in the article:
The epoxidation of vegetable oils is an environmentally friendly process that allows the synthesis of platform mols. for many industrial applications. The diphasic nature of the reaction results in limitations due to mass transfer. Phase transfer catalysis is used as an alternative solution to improve the kinetics of Me oleate epoxidation This epoxidation was investigated by using quaternary ammonium salts, hydrated sodium tungstate and phosphoric acid. The chem. kinetics are monitored by measurements of the thermal flow in the RC1-RTCal calorimetric reactor. The effects of the molar ratios of the co-catalysts Na2WO4/H2O2 and H3PO4/H2O2, the nature and the concentration of the phase transfer agent and the temperature of the process on the chem. kinetics have been investigated. Five transfer agents, Aliquat336, MTOAB, CTAC, CTAB and BDHAC, were tested. The reaction kinetics is faster in the following order: Aliquat336 > CTAC > BDHAC. The reaction time is reduced to less than two hours compared to a conventional epoxidation using percarboxylic acids where the average reaction time is ten hours. The kinetic parameters estimation method is based on the comparison of the exptl. thermal power profiles with the calculated ones by means of a simplified model. A pseudo-homogeneous model based on the main epoxidation reaction and that of catalyst regeneration is proposed. The activation energy obtained for the epoxidation reaction is 40.5 kJ mol-1. The safety parameters ΔTad, the maximum temperature of synthesis reaction and TD24 were determined This study involved multiple reactions and reactants, such as N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9Product Details of 122-18-9).
N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9) belongs to organic chlorides. Organic chlorides can cause corrosion in pipelines, valves and condensers, and cause catalyst poisoning. The hydrocarbon processing industry (HPI) and others are affected by damage caused by these substances. Aliphatic organochlorides are often alkylating agents as chlorine can act as a leaving group, which can result in cellular damage.Product Details of 122-18-9
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics