Results 161 to 170 of about 10,901 (210)
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Supercritical and subcritical turbidity currents and their deposits--A synthesis
Geology, 2014Common facies models of turbidite deposits are based on idealized sequences of turbiditeunits, which are assumed to reflect the depositional processes of a decelerating turbidity current.We show how suites of turbidite units, i.e., distinct turbidite facies associations thatare easily described from core and outcrop, may characterize the entire range ...
Postma, G., Cartigny, M.J.B.
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Synthesis of biodiesel in supercritical fluids
Fuel, 2004Biodiesel, an alternative biodegradable diesel fuel, is derived from triglycerides by transesterification with alcohols. In this work, the transesterification of sunflower oil was investigated in supercritical methanol and supercritical ethanol at various temperatures $(200-400^o C)$ at 200 bar.
Madras, Giridhar +2 more
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MIP Synthesis and Processing Using Supercritical Fluids
2021Supercritical fluid technology provides a clean and straightforward way for the preparation of high affinity polymeric materials. Molecularly Imprinted Polymers (MIPs) as dry, free-flowing powders are obtained in a one-step synthetic route yielding molecular recognition materials for several applications. Herein, we describe the experimental procedures
Ana I, Furtado +2 more
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Synthesis of Supercritical Crystallization Processes
Industrial & Engineering Chemistry Research, 2005Supercritical crystallization using carbon dioxide has become a favorite alternative to conventional processes such as evaporative crystallization and antisolvent crystallization. Phase diagrams that show the regions where various phases are present can facilitate the design of such processes.
Harjo, Benny +2 more
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Supercritical Fluids for Organic Synthesis
ChemInform, 2005AbstractFor Abstract see ChemInform Abstract in Full Text.
Ryoji Noyori, Takao Ikariya
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Supercritical Hydrothermal Reactions for Material Synthesis
Bulletin of the Chemical Society of Japan, 2023Abstract Since the early 1990s, Adschiri and his colleagues have performed research on the use of supercritical water in diverse applications, including heavy oil reforming, waste polymer decomposition and chemical raw materials recovery, cellulose hydrolysis and sugar recovery, lignin decomposition and chemical raw materials recovery ...
Tadafumi Adschiri +14 more
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Supercritical Hydrothermal Synthesis of Nanoparticles
The Proceedings of the Thermal Engineering Conference, 2004Abstract In this chapter, nanoparticle synthesis using supercritical water is introduced. The characteristic phase behavior of supercritical water enables organic ligand modification, and fine tuning of particle size and morphology can be realized by the method. Synthesis of metal nanoparticles is possible in homogeneous reductive atmosphere provided
Tadafumi Adschiri +4 more
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Supercritical Fluid Synthesis of Metal and Semiconductor Nanomaterials
Chemistry – A European Journal, 2003AbstractIn the near future physical and economic constraints are expected to limit the continued miniaturisation of electronic and optical devices using current “top‐down” lithography‐based methods. Consequently, nonlithographic methods for synthesising and organising materials on the nanometre scale are required.
Holmes, Justin D. +2 more
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Synthesis of Phenylferrocene in Supercritical Carbon Dioxide
Advanced Materials Research, 2012The environmentally benign Suzuki cross-coupling reaction was developed by using ScCO2(Supercritical CO2) instead of traditionally organic solvent. In the paper the compound phenylferrocene was synthesized by the Suzuki cross-coupling reaction of iodoferrocene and phenylboronic acids in ScCO2/PEG (polyethylene glycol) with excellent yield ratio in the ...
Fawang Li +3 more
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Fluoropolymer synthesis in supercritical carbon dioxide
The Journal of Supercritical Fluids, 2009Abstract Herein we review the environmentally friendly synthesis of fluorinated polymers in supercritical carbon dioxide (scCO2). Historically, many high-performance fluorinated materials are commercially synthesized in aqueous media using fluorinated surfactants or in non-aqueous conditions using fluorinated solvents.
Libin Du +3 more
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