A Simulated Experiment for Examining the Effect of Errors in the Composition of the Equilibrium Liquid-Vapour Phases on the Calculated Number of Theoretical Stages of a Rectification Column

1993 ◽  
Vol 58 (3) ◽  
pp. 506-516
Author(s):  
Ján Dojčanský ◽  
Soňa Bafrncová ◽  
Július Surový

Five model binary systems differing in the relative volatilities and their changes were used to simulate the effect of random errors and bias in the L-G equilibrium phase composition on the calculation of the number of theoretical stages of a continuously working rectification column in various operating conditions.

1992 ◽  
Vol 57 (9) ◽  
pp. 1867-1878
Author(s):  
Ján Dojčanský ◽  
Soňa Bafrncová ◽  
Július Surový

The effect of random and systematic errors in the determination of the equilibrium temperature on the phase composition in isobaric L-G equilibria was simulated on five binary systems with different size and relative volatility. The impact of the inaccuracies on the calculated number of theoretical stages of a continuously operating rectification column is discussed with respect to the different operating conditions of the separatory process.


1994 ◽  
Vol 59 (4) ◽  
pp. 841-854
Author(s):  
Ján Dojčanský ◽  
Soňa Bafrncová ◽  
Július Surový

The effect of random errors and bias of temperature and phase composition data in the isobaric L-G equilibrium on the calculated number of theoretical plates of a continuously working rectification column at various reflux ratios was investigated. Five model binary systems exhibiting different behaviour and relative volatility were used.


1989 ◽  
Vol 4 (2) ◽  
pp. 447-451 ◽  
Author(s):  
J. Majling ◽  
V. Jesenák ◽  
Della M. Roy ◽  
Rustum Roy

A method has been developed for determining the equilibrium phase composition of multicomponent systems at subsolidus conditions and atmospheric pressure, based on the knowledge of binary phase compatibilities and on information concerning the existence and stoichiometry of ternary and higher order compounds. The method, combined with material balance, enables computation of the changes of equilibrium phase compositions of fired products dependent on the proportions of multicomponent raw materials; the procedure is useful for assessing the exploitability of industrial wastes for production of binding materials and ceramics. It is also possible to find the raw material mixture composition needed for the desired phase composition of the fired product.


2014 ◽  
Vol 44 (1) ◽  
pp. 21-23 ◽  
Author(s):  
A. A. Akberdin ◽  
Yu. S. Yusfin ◽  
T. B. Toymankulov

Author(s):  
V. V. Kozlov ◽  
A. P. Shevchik ◽  
S. A. Suvorov ◽  
N. V. Arbuzova ◽  
D. V. Kuznetsov

The modeling technique was proposed for the phase formation in the CaO‒MgO‒Al2O3‒SiO2‒FeO‒Fe2O3multicomponent oxide system. The technique can be used to predict the equilibrium phase composition for both the refractory and refractory-slag systems, as well as to modify the metallurgical slag's chemical composition, to extent the metallurgical unit's refractory service life, and in order to attaint the refractory-slag systems the mineral binding properties.Ill. 2. Ref. 7. Tab. 8.


2015 ◽  
Vol 57 (1) ◽  
pp. 40
Author(s):  
A. A. Akberdin ◽  
Yu. S. Yusfin ◽  
T. B. Toymankulov

Author(s):  
А.Ф. Паль ◽  
А.Н. Рябинкин ◽  
А.О. Серов

Structureless Zr75Pd25 amorphous metal coatings were obtained using DC magnetron sputtering with an average deposition rate of 1.3 nm/s and a substrate temperature of 40 oC, as well as the crystalline coatings at a higher temperature. The equilibrium phase composition is observed at a temperature 350 oC. At intermediate temperature mainly the PdZr phase is formed against the equilibrium PdZr2 phase. The roughness of the obtained amorphous coatings is of 0.2–0.5 nm, which is an order of magnitude lower than that of crystalline coatings of the same composition.


Metallurgist ◽  
2016 ◽  
Vol 59 (11-12) ◽  
pp. 1075-1080 ◽  
Author(s):  
L. M. Kaputkina ◽  
A. G. Svyazhin ◽  
D. E. Kaputkin ◽  
V. E. Bazhenov ◽  
A. V. Bronz ◽  
...  

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