نتایج جستجو برای: solvent effects

تعداد نتایج: 1591628  

2010
Elin Löfström-Engdahl Emma Aneheim Christian Ekberg Mark Foreman

The fact that the choice of organic diluent is important for a solvent extraction process goes without saying. Several factors, such as e.g. price, flash point, viscosity, polarity etc. each have their place in the planning of a solvent extraction system. This high number of variables makes the lack of compilations concerning diluent effects to an interesting topic. Often the interest for the r...

Journal: :Journal of Synthetic Organic Chemistry, Japan 1967

Journal: :Acta Chemica Scandinavica 1992

Journal: :NIPPON KAGAKU KAISHI 1985

Journal: :Bulletin of The Japan Petroleum Institute 1967

Journal: :journal of physical & theoretical chemistry 2011
f. keshavarz rezaei a. taherpour m. aghaie

glycine, alanine and valine are taken as amino acids with an equal polar head and with thedifference in the length of hydrocarbon chains. the structural optimizations show the results of theisolated glycine, alanine and valine in the gases phase, at the hartree-fock level by means ofsto-3g,3-21g, 6-31g and 6-31+g basis sets. the calculations were performed for the ten (1-10)solvents using pcm m...

2006
Michael H. Abraham

Solvent effects on the rates of some well-known nuclophilic substitution reactions have been analysed in terms of initial—state and transition-state contributions. Where possible, the latter have been further analysed by the method of model solutes, on which solvent effects on a transition state are compared to solvent effects on a solute that might be a suitable model for the transition state....

Journal: :ChemSusChem 2016
Li Shuai Jeremy Luterbacher

Transforming lignocellulosic biomass into fuels and chemicals has been intensely studied in recent years. A large amount of work has been dedicated to finding suitable solvent systems, which can improve the transformation of biomass into value-added chemicals. These efforts have been undertaken based on numerous research results that have shown that organic solvents can improve both conversion ...

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