Volume properties of liquid mixture of {water (1) + ethylenediamine (2)} over the temperature range from 274.15 to 333.15 K at atmospheric pressure

2016 ◽  
Vol 639 ◽  
pp. 148-159 ◽  
Author(s):  
Gennadiy I. Egorov ◽  
Dmitriy M. Makarov ◽  
Arkadiy M. Kolker
Keyword(s):  
Atmospheric Pressure ◽  
Liquid Mixture ◽  
Temperature Range ◽  
Volume Properties

Transformation of 1-Butene over Synthetic Zeolites

1992 ◽  
Vol 57 (4) ◽  
pp. 869-881 ◽  
Author(s):  
Italo Ferino ◽  
Roberto Monaci ◽  
Vincenzo Solinas ◽  
Lucio Forni ◽  
Antonio Rivoldini ◽  
...  
Keyword(s):  
Atmospheric Pressure ◽  
Continuous Flow ◽  
Liquid Mixture ◽  
Isomerization Reaction ◽  
Reaction Conditions ◽  
Title Reaction ◽  
Y Zeolites ◽  
Temperature Range ◽  
Flow Microreactor ◽  
Synthetic Zeolites

The behaviour of several zeolites as catalysts for the title reaction has been investigated by means of a continuous flow microreactor. Runs performed at atmospheric pressure indicated that at 423 K the completely protonic forms of the zeolites catalyze just the isomerization reaction. In the case of Y zeolites, oligomerization occurs only over the partially decationated samples, in the temperature range between 373 and 423 K and W/F between 0.2 and 22 gcath/g1-but, to an extent which depends on the reaction conditions. Most of the catalysts were tested also under pressure (4.05 MPa) at 423 K. The protonic forms of Y and ZSM-5 zeolites seem promising catalysts in terms of both conversion and selectivity to oligomers. The 1-olefins account for 30% of the entire olefinic mixture. The octenes, which account for 70% of the liquid mixture, are mostly formed of dimethylhexenes. Trimers are also formed during the reaction and, in the very particular case of H[B]ZSM-5, tetramers are produced.

l-Asparagine-assisted synthesis of flower-like β-Bi2O3 and its photocatalytic performance for the degradation of 4-phenylphenol under visible-light irradiation

RSC Advances ◽  
2015 ◽  
Vol 5 (91) ◽  
pp. 74977-74985 ◽  
Author(s):  
Xin Xiao ◽  
Shunheng Tu ◽  
Chunxia Zheng ◽  
Huan Zhong ◽  
Xiaoxi Zuo ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Atmospheric Pressure ◽  
Room Temperature ◽  
Photocatalytic Performance ◽  
Light Irradiation ◽  
Temperature Range

By introducing l-asparagine as a ligand, a flower-like precursor of Bi2O3 was prepared by a simple reflux process under atmospheric pressure. β-Bi2O3 was then conveniently obtained by decomposing the precursor and stabilized in a temperature range from room temperature to 420 °C due to the surface-coordination effects of CO32− derived from l-asparagine.

scholarly journals Photoluminescence and Cathodoluminescence of GaN doped with Pr

2000 ◽  
Vol 5 (S1) ◽  
pp. 817-823
Author(s):  
H. J. Lozykowski ◽  
W. M. Jadwisienczak ◽  
I. Brown
Keyword(s):  
Rare Earth ◽  
Thermal Annealing ◽  
Spectral Range ◽  
Atmospheric Pressure ◽  
Rare Earth Ions ◽  
Emission Lines ◽  
Decay Kinetics ◽  
Temperature Range ◽  
Characteristic Emission ◽  
Kinetics Measurement

In this paper we have reported the observation of visible photoluminescence (PL) and cathodoluminescence (CL) of Pr implanted in GaN. The implanted samples were given isochronal thermal annealing treatments at a temperature of 11000 C in NH3, N2, Ar2, and in forming gas N2 +H2, at atmospheric pressure to recover implantation damages and activate the rare earth ions. The sharp characteristic emission lines corresponding to Pr3+ intra-4fn-shell transitions are resolved in the spectral range from 350 nm to 1150 nm, and observed over the temperature range of 12 K-335 K. The PL and CL decay kinetics measurement was performed for 3P1, 3P0 and 1D2 levels.

Heat Capacities of Some Alkyl Acetates at 295-323 K

1997 ◽  
Vol 62 (10) ◽  
pp. 1527-1532 ◽  
Author(s):  
Václav Svoboda ◽  
Kornelia Gottmanová ◽  
Vladimír Hynek ◽  
Bohumír Koutek
Keyword(s):  
Experimental Data ◽  
Linear Function ◽  
Atmospheric Pressure ◽  
Heat Capacities ◽  
Group Additivity ◽  
Temperature Range ◽  
Alkyl Acetates

Molar heat capacities Cp,m at constant atmospheric pressure have been determined with a typical uncertainty of about 0.3% for eight liquid alkyl acetates H(CH2)nOCOCH3 (n = 6-12, 14), over the temperature range 295-323 K. The Cp,m values were found to be a linear function of temperature. A comparison of experimental data with those predicted by the group additivity method demonstrated a rather limited capability of the additivity scheme to predict correctly the Cp,m values for higher (n > 10) homologues in the series.

TEM Characterization of a Modulated β Phase in Polycrystalline Dicalcium Silicate

1991 ◽  
Vol 49 ◽  
pp. 946-947
Author(s):  
Y. J. Kim ◽  
I. Nettleship ◽  
W. M. Kriven
Keyword(s):  
Atmospheric Pressure ◽  
Imaging Techniques ◽  
Dicalcium Silicate ◽  
Temperature Range ◽  
Β Phase ◽  
Tem Characterization ◽  
Diffraction Patterns

Five polymorphs are known as major phases in pure dicalcium silicate (Ca2SiO4) at atmospheric pressure—α, α'H, α'L, β and γ. Fully dense pellets were prepared by sintering chemically prepared powders in the temperature range of 1300 to 1400°C for 1 to 12 hours. Their phases and microstructures were studied by TEM through selected area diffraction patterns (SADP's) and imaging techniques.

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