Einfluß von Temperatur und Gasdruck auf das tribologische Verhalten von Silber / Influence of temperature and atmospheric pressure with respect to the tribological behavior of silver

1984 ◽  
Vol 26 (8) ◽  
pp. 259-265
Author(s):  
P. Feinle ◽  
H. G. Feller
Keyword(s):  
Atmospheric Pressure ◽  
Tribological Behavior ◽  
Influence Of Temperature

Kinetic Study of the Diels-Alder Reaction of Cyclopentadiene with Bis(2-Ethylhexyl) Maleate

2013 ◽  
Vol 634-638 ◽  
pp. 541-545 ◽  
Author(s):  
Jun Seong Park ◽  
Dae Hee Yun ◽  
Tae Won Ko ◽  
Yong Sung Park ◽  
Je Wan Woo
Keyword(s):  
Kinetic Study ◽  
Reaction Temperature ◽  
Atmospheric Pressure ◽  
Arrhenius Equation ◽  
Alder Reaction ◽  
Diels Alder ◽  
Influence Of Temperature ◽  
Diels Alder Reaction ◽  
Influence Of Temperature On ◽  
Kinetics Of

The kinetics of the Diels-Alder reaction of cyclopentadiene with bis(2-ethylhexyl) maleate has been studied at temperatures between 25 and 100 °C and at atmospheric pressure. The influence of temperature on the kinetic constants was determined by fitting the results to the Arrhenius equation. As a result, fitting line similar with the linear curve of the Arrhenius equation at 25, 30 and 40 °C. However, the fitting curve, at 60, 80 and 100 °C, tended towards the outside of the curve in the form of Arrhenius equation. The ratio of endo/exo was a slight change from increase of the reaction temperature.

scholarly journals Leaching of polymetallic Cu-Zn-Pb concentrate with sodium nitrate in sulphuric acid

Tehnika ◽  
2021 ◽  
Vol 76 (4) ◽  
pp. 426-436
Author(s):  
Miroslav Sokić ◽  
Branislav Marković ◽  
Dušan Milojkov ◽  
Aleksandra Patarić ◽  
Mladen Bugarčić ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Sulphuric Acid ◽  
Sodium Nitrate ◽  
Atmospheric Pressure ◽  
Oxidizing Agent ◽  
Influence Of Temperature ◽  
Leaching Process ◽  
Gibbs Energies ◽  
Copper Zinc ◽  
Solid Residuals

The results of polymetallic sulphide Cu-Zn-Pb concentrate leaching with sulphuric acid in the presence of sodium nitrate as an oxidizing agent, at atmospheric pressure, are presented and discussed. Chemical composition and phase ratio of the starting concentrate and solid residuals after the leaching process are shown. Chemical reactions of leaching and their thermodynamic probabilities are predicted based on the calculated Gibbs energies and analysis of E-pH diagrams. The influence of temperature and time on the leaching degree of the concentrate's components is experimentally determined. It is shown that it is possible to obtain copper, zinc and iron in a solute form, while lead in the anglesite (PbSO4) form remains in the solid residual after the leaching process. The iron is being oxidized to Fe(III)-sulphate, which takes part in a sulphide leached minerals and turns into Fe(II)-sulphate.

Influence of Temperature on Liquid–Liquid Equilibrium of Methanol + Toluene + Hexane Ternary Systems at Atmospheric Pressure

2018 ◽  
Vol 47 (9) ◽  
pp. 1529-1538
Author(s):  
Jonatán Hernán Veliz ◽  
Alicia Marta Cases ◽  
Constanza Geraldine Varas Gutiérrez ◽  
Mónica Beatriz Gramajo
Keyword(s):  
Atmospheric Pressure ◽  
Ternary Systems ◽  
Liquid Equilibrium ◽  
Influence Of Temperature ◽  
Influence Of Temperature On

Influence of temperature on molecular interactions of imidazolium-based ionic liquids with acetophenone: thermodynamic properties and quantum chemical studies

RSC Advances ◽  
2016 ◽  
Vol 6 (106) ◽  
pp. 104708-104723 ◽  
Author(s):  
Indra Bahadur ◽  
Masilo Kgomotso ◽  
Eno E. Ebenso ◽  
Gan Redhi
Keyword(s):  
Ionic Liquids ◽  
Thermodynamic Properties ◽  
Molecular Interactions ◽  
Atmospheric Pressure ◽  
Quantum Chemical ◽  
Influence Of Temperature ◽  
Wide Range ◽  
Influence Of Temperature On ◽  
Chemical Studies ◽  
Quantum Chemical Studies

The thermophysical properties of a series of alkyl imidazolium-based ionic liquids with acetophenone over the wide range of composition and at (293.15, 303.15, 313.15, 323.5 and 333.15) K under atmospheric pressure is reported in this study.

scholarly journals XV.—On the Influence of Temperature on the Photo-Electric Discharge from Platinum

1907 ◽  
Vol 27 ◽  
pp. 117-134 ◽  
Author(s):  
W. Mansergh Varley ◽  
Fred Unwin
Keyword(s):  
Electric Discharge ◽  
Atmospheric Pressure ◽  
Physical Review ◽  
Platinum Wire ◽  
Influence Of Temperature ◽  
Influence Of Temperature On

Zeleny (Physical Review, xii., p. 321, 1901) has investigated the variation with temperature of the photo-electric discharge from a platinum wire in air at ordinary atmospheric pressure.

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