Kinetics of the Catalytic Oxidation of Methyl Oleate

Article Chemistry, Physical

Kinetics of N-Phosphonomethyl Iminodiacetic Acid Catalytic Oxidation with Hydrogen Peroxide Under the Phase-Transfer Conditions

Dmitry Yu Yushchenko et al.

Summary: This study investigated the oxidation of N-phosphonomethyl iminodiacetic acid (PMIDA) with hydrogen peroxide in a two-phase system using a specific catalyst, and determined the kinetic parameters of the reaction. It was found that the reaction only proceeds in the presence of the catalyst, with PMIDA N-oxide as the main product. The reaction orders with respect to the reagents and catalyst were determined to be first, with an apparent activation energy of 37 +/- 3 kJ/mol for the temperature range of 313-343 K.

CATALYSIS LETTERS (2022)

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Article Chemistry, Physical

A Comparative Study of the Catalytic Activity of Sulfonic Acid Cation-Exchange Resins with a Macroporous and Gel Structure in Fatty Acid Esterification

K. V. Otopkova et al.

Summary: The activity and stability of cation-exchange resins in fatty acid esterification with methyl alcohol were studied. It was found that the developed surface and larger pore volume of the cation-exchange resins facilitated the desorption of reaction products, preventing catalytic site blockage and catalyst deactivation. Among the studied resins, the Lewatit MonoPlus SP 112 cation-exchange resin with a macroporous structure exhibited the best results.

KINETICS AND CATALYSIS (2022)

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Review Nutrition & Dietetics

A Brief Journey into the History of and Future Sources and Uses of Fatty Acids

Michela Cerone et al.

Summary: Fats and lipids have played a vital role in human history, with their sources and uses evolving over time with advancements in science and technology. Industries are now focusing on polyunsaturated fatty acids (PUFAs) due to their beneficial properties and the need for sustainable sources to meet increasing demand.

FRONTIERS IN NUTRITION (2021)

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Review Chemistry, Multidisciplinary

Fatty Acids and their Derivatives as Renewable Platform Molecules for the Chemical Industry

Ursula Biermann et al.

Summary: Oils and fats of vegetable and animal origin are important renewable feedstock for the chemical industry, with their industrial use increasing significantly in the past decade. Remarkable achievements in oleochemistry include reduction of fatty esters, selective oxidation of double bonds, synthesis of alkyl-branched compounds, and applications in the synthesis of polymeric materials.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Review Chemistry, Physical

The Lord of the Chemical Rings: Catalytic Synthesis of Important Industrial Epoxide Compounds

Yudong Meng et al.

Summary: The epoxidized group, also known as the oxirane group, is considered a crucial functional group in chemistry due to its high ring strain and polarization of the C-O bond. It is widely used in fuels, polymers, materials, and other fields. There is currently a lack of review articles on the catalytic synthesis of short size, intermediate, and macro-molecules.

CATALYSTS (2021)

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Article Chemistry, Physical

Effective Epoxidation of Fatty Acid Methyl Esters with Hydrogen Peroxide by the Catalytic System H3PW12O40/Quaternary Phosphonium Salts

Marlena Musik et al.

Summary: Six quaternary phosphonium salts were tested in the epoxidation of rapeseed oil fatty acid methyl esters, with two QPSs containing trihexyltetradecyphosphonium cation being the most effective. A kinetic model considering epoxidation and epoxy ring opening reactions was proposed, and the rate constants and activation energies were determined for epoxidation reactions of fatty acid methyl esters.

CATALYSTS (2021)

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Review Chemistry, Physical

Recent advances in sustainable production and catalytic transformations of fatty acid methyl esters

Artem S. Belousov et al.

Summary: Green chemistry offers researchers the potential to design products and processes that reduce or eliminate the use of hazardous substances in chemical engineering. Fatty acid methyl esters have great potential in the chemical industry due to their catalytic conversion capabilities, producing a wide range of useful chemicals. Glycerol, a versatile chemical produced through transesterification of vegetable oils, is an important byproduct of biodiesel production.

SUSTAINABLE ENERGY & FUELS (2021)

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Article Chemistry, Physical