Liquid−Liquid Equilibria for Binary System of Ethanol + Hexadecane at Elevated Temperature and the Ternary Systems of Ethanol + Heterocyclic Nitrogen Compounds + Hexadecane at 298.15 K

2007 ◽  
Vol 52 (5) ◽  
pp. 1919-1924 ◽  
Author(s):  
In-Chan Hwang ◽  
Kyung-Lok Kim ◽  
So-Jin Park ◽  
Kyu-Jin Han
Keyword(s):  
Elevated Temperature ◽  
Binary System ◽  
Ternary Systems ◽  
Nitrogen Compounds ◽  
Heterocyclic Nitrogen

Microbial upgrading of Stuart shale oil: removal of heterocyclic nitrogen compounds

Fuel ◽  
1990 ◽  
Vol 69 (9) ◽  
pp. 1155-1157 ◽  
Author(s):  
Jacqueline Aislabie ◽  
Ronald M. Atlas
Keyword(s):  
Nitrogen Compounds ◽  
Shale Oil ◽  
Oil Removal ◽  
Heterocyclic Nitrogen

Heterocyclic nitrogen compounds. Part I. Some reactions of 3,6-dibenzylidene-2,5-dioxopiperazines

1969 ◽  
pp. 622 ◽  
Author(s):  
Mohamed A.-F. Elkaschef ◽  
Kamal-Eldin Mokhtar ◽  
Farouk M. E. Abdel-Megeid ◽  
Salah A. A. Khallaf
Keyword(s):  
Nitrogen Compounds ◽  
Heterocyclic Nitrogen

scholarly journals Physical Stability and Viscoelastic Properties of Co-Amorphous Ezetimibe/Simvastatin System

2019 ◽  
Vol 12 (1) ◽  
pp. 40 ◽  
Author(s):  
Justyna Knapik-Kowalczuk ◽  
Krzysztof Chmiel ◽  
Karolina Jurkiewicz ◽  
Natália Correia ◽  
Wiesław Sawicki ◽  
...  
Keyword(s):  
Elevated Temperature ◽  
Viscoelastic Properties ◽  
Room Temperature ◽  
Physical Stability ◽  
Ternary Systems ◽  
Storage Conditions ◽  
X Ray Diffraction ◽  
X Ray ◽  
Temperature Conditions ◽  
First Time

The purpose of this paper is to examine the physical stability as well as viscoelastic properties of the binary amorphous ezetimibe–simvastatin system. According to our knowledge, this is the first time that such an amorphous composition is prepared and investigated. The tendency toward re-crystallization of the amorphous ezetimibe–simvastatin system, at both standard storage and elevated temperature conditions, have been studied by means of X-ray diffraction (XRD). Our investigations have revealed that simvastatin remarkably improves the physical stability of ezetimibe, despite the fact that it works as a plasticizer. Pure amorphous ezetimibe, when stored at room temperature, begins to re-crystallize after 14 days after amorphization. On the other hand, the ezetimibe-simvastatin binary mixture (at the same storage conditions) is physically stable for at least 1 year. However, the devitrification of the binary amorphous composition was observed at elevated temperature conditions (T = 373 K). Therefore, we used a third compound to hinder the re-crystallization. Finally, both the physical stability as well as viscoelastic properties of the ternary systems containing different concentrations of the latter component have been thoroughly investigated.

ChemInform Abstract: Mutagenic Heterocyclic Nitrogen Compounds Related to Protein Pyrolysates.

1986 ◽  
Vol 17 (47) ◽  
Author(s):  
G. SAINT-RUF ◽  
G. KERAVIS ◽  
B. LOUKAKOU ◽  
E. HEBERT
Keyword(s):  
Nitrogen Compounds ◽  
Heterocyclic Nitrogen

ChemInform Abstract: Synthesis and Studies on Heterocyclic Nitrogen Compounds.

ChemInform ◽  
1987 ◽  
Vol 18 (49) ◽  
Author(s):  
M. A. EL-MAGHRABY ◽  
A. K. KHALAFALLA ◽  
M. E. HASSAN ◽  
H. A. SOLEIMAN
Keyword(s):  
Nitrogen Compounds ◽  
Heterocyclic Nitrogen

Efficient Extraction of Neutral Heterocyclic Nitrogen Compounds from Coal Tar via Ionic Liquids and Its Mechanism Analysis

2018 ◽  
Vol 32 (9) ◽  
pp. 9358-9370 ◽  
Author(s):  
Lianzheng Zhang ◽  
Mi Zhang ◽  
Jun Gao ◽  
Dongmei Xu ◽  
Shixue Zhou ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Coal Tar ◽  
Nitrogen Compounds ◽  
Mechanism Analysis ◽  
Heterocyclic Nitrogen ◽  
Efficient Extraction
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