Results 1 to 10 of about 6,977 (282)

Photocatalytic dihydroxylation of light olefins to glycols by water [PDF]

Nature Communications
Aliphatic diols such as ethylene and propylene glycol are the key products in the chemical industry for manufacturing polymers. The synthesis of these molecules usually implies sequential processes, including epoxidation of olefins using hydrogen ...
Chunyang Dong, Yinghao Wang, Ziqi Deng, Wenchao Wang, Maya Marinova, Karima Ben Tayeb, Jean-Charles Morin, Melanie Dubois, Martine Trentesaux, Yury G. Kolyagin, My Nghe Tran, Vlad Martin-Diaconescu, Olga Safonova, Jeremie Zaffran, Andrei Y. Khodakov, Vitaly V. Ordomsky   +15 more
doaj   +2 more sources

Laser Microinterferometry for API Solubility and Phase Equilibria: Darunavir as a Case Example [PDF]

Pharmaceutics
Background: The solubility and phase behavior of APIs are crucial for the development of medicines and ensuring their stability. However, conventional experimental approaches often do not allow for the precise determination of phase transitions and ...
Veronika Makarova, Mark Mandrik, Sergey Antonov   +2 more
doaj   +2 more sources

Synthesis and biodegradation testing of some synthetic oils based on ester [PDF]

Scientific Reports
Synthetic ester oils are widely used in many applications due to their ideal cleaning properties, lubricating performance and assured polarity. The majority of esters oils are more biodegradable. than any other base stock.
Reham I. El Shazly, Huda S. El-Sheshtawy, Nehal S. Ahmed, Amal M. Nassar   +3 more
doaj   +2 more sources

Glycols in the Synthesis of Zinc-Anilato Coordination Polymers

Crystals, 2022
We report the synthesis, structural investigation, and thermal behavior for three zinc-based 1D-coordination polymers with 3,6-di-tert-butyl-2,5-dihydroxy-p-benzoquinone, which were synthesized in the presence of different glycols.
Olesya Y. Trofimova, Arina V. Maleeva, Kseniya V. Arsenyeva, Anastasiya V. Klimashevskaya, Il’ya A. Yakushev, Alexandr V. Piskunov   +5 more
doaj   +1 more source

Effect of the heating rate on crystallization and densification of TiO2 films prepared from alkoxide solutions containing various organic additives

Journal of Asian Ceramic Societies, 2023
The effect of the heating rate on crystallization and densification of sol–gel-derived TiO2 films has been investigated. The TiO2 gel films were prepared from Ti(OC3H7i)4 solutions containing alcohols (2-butanol and 2-methoxyethanol), glycols (propylene ...
Hiroaki Uchiyama, Yuji Tanaka, Shouta Mizuguchi   +2 more
doaj   +1 more source

Synthesis and simulation of a distillation columns system for the propylene glycols mixtures separation

Engineering Reports, 2021
Four sequences were synthesized and simulated for the separation process of the propylene glycols mixtures: the direct, the indirect, and two proposed sequences.
Elena M. Fendu, Marilena Nicolae
doaj   +1 more source

Kinetic Modeling for the “One-Pot” Hydrogenolysis of Cellulose to Glycols over Ru@Fe₃O₄/Polymer Catalyst

Reactions, 2021
Despite numerous works devoted to the cellulose hydrogenolysis process, only some of them describe reaction kinetics. This is explained by the complexity of the process and the simultaneous behavior of different reactions.
Oleg Manaenkov, Yuriy Kosivtsov, Valentin Sapunov, Olga Kislitsa, Mikhail Sulman, Alexey Bykov, Alexander Sidorov, Valentina Matveeva   +7 more
doaj   +1 more source

Organics and inorganics in flow back and produced water from shale gas operations: treatment and identification of glycols using gas chromatography–mass spectrometry

Journal of Water Reuse and Desalination, 2023
This study investigated the efficiency of different water treatment processes in reducing propylene glycol (PG), ethylene glycol (EG), ethylene glycol monobutyl ether (EGME), and other water quality parameters in flow back/produced water from a shale gas
Seongyun Kim, Pinar Omur-Ozbek, Ken Carlson, Sangchul Lee, Eun-Sik Kim, Min-Jin Hwang, Ji-Hee Son, Woochul Kang   +7 more
doaj   +1 more source

Advances for Biorefineries: Glycerol Hydrogenolysis to 1,3-Propylene Glycol

Reactions, 2022
Humanity’s growing dependence on non-renewable resources and the ensuing environmental impact thus generated have spurred the search for alternatives to replace chemicals and energy obtained from petroleum derivatives.
Martin Nicolás Gatti, Nora Nancy Nichio, Francisco Pompeo   +2 more
doaj   +1 more source

Suitability of different supported Ru, Pt and Ni catalysts for the hydrogenolysis of sorbitol

Results in Engineering, 2022
In this article, the results of sorbitol hydrogenolysis (15% aq. solution), done in an autoclave reactor, over Ru, Pt and Ni loaded on SBA15, carbon coated SBA15 (SBA15C), activated carbon (AcC), Na–Y, Fly Ash (FA) and hydroxyapatite (HAP) catalysts by ...
Thirunavukkarasu Kandasamy, Marimuthu Banu, R. Vijaya Shanthi, S. Sivasanker   +3 more
doaj   +1 more source