J. Wisniak - Academia.edu (original) (raw)
Papers by J. Wisniak
Journal of Applied Polymer Science, 1996
The assembly of a stirred tank reactor capable of precise reaction temperature control is describ... more The assembly of a stirred tank reactor capable of precise reaction temperature control is described. The unit allows easy on-line determination of the thermal effect and calculation of heat transfer coefficients and heat capacities. Construction elements are standard, low cost, and high quality. Temperature control is achieved by a heating-cooling loop integrated to the reactor jacket and a cascade control procedure. An important feature of the equipment is the integration of the data acquisition system with the supervisory control system that allows the capability of an advanced strategy for process control and data acquisition. The capability of the reaction system is demonstrated for the microemulsion polymerization of vinyl acetate, by the use of batch and isothermal operational modes. The course of the reaction is followed on-line by the temperature variation of the jacket. Procedures are described for the calibration of the unit. The reactor developed is versatile, is easy to configure and extend, is low cost, and can compete advantageously with commercial reactor units such as the Mettler RC1.
Journal of Chemical & Engineering Data, 2001
Consistent vapor-liquid equilibria data at 94.00 kPa have been determined for the ternary system ... more Consistent vapor-liquid equilibria data at 94.00 kPa have been determined for the ternary system 1-hexene + ethyl 1,1-dimethylethyl ether + benzene and for its constituent binary 1-hexene + benzene, in the temperature range 334-351 K. According to the experimental results, the systems exhibit slight positive deviations from ideal behavior and no azeotrope is present. The VLE data have been correlated with the mole fraction using the Redlich-Kister, Wilson, NRTL, UNIQUAC, and Tamir relations. These models, in addition to UNIFAC, allow good prediction of the VLE properties of the ternary system from those of the pertinent binary systems.
Journal of Chemical & Engineering Data, 1998
Pure-component vapor pressures and vapor-liquid equilibrium data at 94 kPa have been determined f... more Pure-component vapor pressures and vapor-liquid equilibrium data at 94 kPa have been determined for the binary systems methyl 1,1-dimethylethyl ether + benzene and methyl 1,1-dimethylethyl ether + toluene. The systems exhibit regular behavior and a slight positive deviation from ideality, and no azeotrope is present. The data were correlated by the Wisniak-Tamir equation, and the appropriate parameters are reported.
Journal of Chemical & Engineering Data, 2001
Isobaric vapor−liquid equilibrium (VLE) data at 94.00 kPa have been determined for the ternary sy... more Isobaric vapor−liquid equilibrium (VLE) data at 94.00 kPa have been determined for the ternary system 1-hexene + ethyl 1,1-dimethylethyl ether + benzene and for its constituent binary system 1-hexene + 2,2,4-trimethylpentane (isooctane), in the temperature range 335 to 360 K. ...
Journal of Chemical & Engineering Data, 1997
Vapor−liquid equilibrium at 94 kPa has been determined for the systems hexane + heptane and methy... more Vapor−liquid equilibrium at 94 kPa has been determined for the systems hexane + heptane and methyl 1,1-dimethylethyl ether (MTBE) + hexane + heptane. The binary system exhibits regular, almost ideal behavior, and no azeotrope is ...
Physics and Chemistry of Liquids, 1999
P hp Chem. Liq., 1999, Vol. 37, pp. 649-660 Reprints available directly from the publisher Photoc... more P hp Chem. Liq., 1999, Vol. 37, pp. 649-660 Reprints available directly from the publisher Photocopying permitted by license only 1999 OPA (Overseas Publishers Association) NV Published by license under the Gordon and Breach Science ...
Physics and Chemistry of Liquids, 2003
Vapor–liquid equilibrium data at 50, 75 and 94 kPa have been determined for the binary system met... more Vapor–liquid equilibrium data at 50, 75 and 94 kPa have been determined for the binary system methyl 1,1-dimethylethyl ether þ 2-propanol, in the temperature range 308– 344 K. The measurements were made in an ...
Physics and Chemistry of Liquids, 2001
Vapor-liquid equilibrium has been determined at 94 and 70kPa for the binary system methanol+ethyl... more Vapor-liquid equilibrium has been determined at 94 and 70kPa for the binary system methanol+ethyl 1,l-dimethylethyl ether. The system deviates positively from ideal behavior and presents a minimum boiling azeotrope at 329
Journal of Chemical & Engineering Data, 1999
Consistent vapor-liquid equilibria (VLE) at 94.00 kPa has been determined for the ternary system ... more Consistent vapor-liquid equilibria (VLE) at 94.00 kPa has been determined for the ternary system ethyl 1,1-dimethylethyl ether + 2,2,4-trimethylpentane + methylcyclohexane and the two constituent binaries ethyl 1,1-dimethylethyl ether + methylcyclohexane and 2,2,4-trimethylpentane + methylcyclohexane in the temperature range from 343 to 371 K. In addition, vapor pressures have been measured for methylcyclohexane from 331 to 374 K. According to the experimental results, the systems exhibit slight positive deviations from ideal behavior and no azeotrope is present. The VLE data have been correlated with the composition using the Redlich-Kister, Wilson, NRTL, UNIQUAC, and Wisniak-Tamir relations. These models, in addition to UNIFAC, allow good prediction of the VLE properties of the ternary system from those of the pertinent binary systems.
Industrial & Engineering Chemistry Research, 1996
Polyazeotropy in binary systems is a very singular case of vapor-liquid equilibrium (VLE), and it... more Polyazeotropy in binary systems is a very singular case of vapor-liquid equilibrium (VLE), and its causes have not been studied in detail. The unique evidence about the phenomenon is the experimental VLE results for the benzene-hexafluorobenzene system, which exhibits two simultaneous azeotropes. The purpose of this work is to make a thermodynamical analysis of polyazeotropy at low pressures and to establish the necessary and sufficient conditions that provoke it. The evolution of polyazeotropes with temperature and pressure is explained, and the criteria to predict azeotropic behavior from minimal information are developed. This study also delivers some important results about the possibility of predicting polyazeotropy using classical G E models and about estimation of the parameters for excess energy models from activity coefficients at infinite dilution, in particular, when this procedure generates changes of concavity for the G E function. IE960054A X Abstract published in Advance ACS Abstracts, August 15, 1996.
Fluid Phase Equilibria, 1999
Vapor-liquid equilibrium at 94 kPa has been determined for the ternary system ethyl 1,1-dimethyle... more Vapor-liquid equilibrium at 94 kPa has been determined for the ternary system ethyl 1,1-dimethylethyl ether Ž . ETBE q heptaneq octane. The system deviates slightly from ideality and no azeotrope is present. The ternary activity coefficients and the boiling points of the system have been correlated with the composition using the Redlich-Kister, Wilson, NRTL, UNIQUAC, UNIFAC, and Wisniak-Tamir relations. Most of the models allow a very good prediction of the activity coefficients of the ternary system from those of the pertinent binary systems. q
Fluid Phase Equilibria, 1999
Consistent vapor-liquid equilibrium data at 94 kPa have been determined for the ternary system he... more Consistent vapor-liquid equilibrium data at 94 kPa have been determined for the ternary system hexaneq ethyl 1,1-dimethylethyl ether q heptane. The results indicate that the system deviates positively from ideality and that no azeotrope is present. The ternary system were predicted with the composition by the Redlich-Kister, Wilson, NRTL, UNIQUAC and UNIFAC models using only the parameters of the constituent binaries. Most of the models allow a very good prediction of the phase equilibrium of the ternary system. In addition, the Wisniak-Tamir relations were used for correlating bubble-point temperatures. q 1999 Elsevier Science B.V. All rights reserved.
Physics and Chemistry of Liquids, 2000
Page 1. Phys. Chem. Liq.. ZOOO, Vol. 38. pp. 391 -404 Reprints available directly from the publis... more Page 1. Phys. Chem. Liq.. ZOOO, Vol. 38. pp. 391 -404 Reprints available directly from the publisher Photocopying permitted by license only 0 2oaO OPA (Overseas Publishers Association) NV Published ...
Physics and Chemistry of Liquids, Sep 24, 2006
Vapor-liquid equilibrium has been determined at 94 and 70kPa for the binary system methanol+ethyl... more Vapor-liquid equilibrium has been determined at 94 and 70kPa for the binary system methanol+ethyl 1,l-dimethylethyl ether. The system deviates positively from ideal behavior and presents a minimum boiling azeotrope at 329
Physics and Chemistry of Liquids, 2001
Phys. Chem. Llq.. 2001. Vol. 39. pp. 43-54 Reprints available directly from the publisher Photoco... more Phys. Chem. Llq.. 2001. Vol. 39. pp. 43-54 Reprints available directly from the publisher Photocopying pcnnitted by license only 0 2001 OPA (Oversea Publishem Association) NV Published by license under the Gordon and Bnach Science ...
Revista CENIC. Ciencias Químicas, 2006
... acquainted with the most famous European chemists, particularly Jöns Jacob Berzelius (1779-18... more ... acquainted with the most famous European chemists, particularly Jöns Jacob Berzelius (1779-1848) in Sweden and Théophile-Jules Pelou-ze ... Addition of caustic al-kali precipitates lead dioxide while addition of potassium carbonate yields a brown precipitate, accom-panied ...
Revista CENIC. Ciencias Químicas, 2005
... Wisniak, Jaime Guillaume Amontons Revista CENIC. Ciencias Químicas, vol. 36, núm. 3, 2005, pp... more ... Wisniak, Jaime Guillaume Amontons Revista CENIC. Ciencias Químicas, vol. 36, núm. 3, 2005, pp. ... Key words: barometer, thermometry, absolute zero, hygrometer, telegraph, external-combustion machine, friction in machines. Guillaume Amontons Jaime Wisniak. ...
Indian journal of chemical technology, 2005
... In 1836, in the United States, Alonzo Dwight Phillips of Springfield, Massachusetts, obtained... more ... In 1836, in the United States, Alonzo Dwight Phillips of Springfield, Massachusetts, obtained the first patent24 for manufacturing friction matches, which he called Loco ... in 1844 by the Swede Gustaf Erik Pasch (1788-1862), a professor in chemistry and a partner in JS Bagge & Co ...
Journal of Materials Engineering and Performance, 2004
Indian journal of chemical technology, 2005
Journal of Applied Polymer Science, 1996
The assembly of a stirred tank reactor capable of precise reaction temperature control is describ... more The assembly of a stirred tank reactor capable of precise reaction temperature control is described. The unit allows easy on-line determination of the thermal effect and calculation of heat transfer coefficients and heat capacities. Construction elements are standard, low cost, and high quality. Temperature control is achieved by a heating-cooling loop integrated to the reactor jacket and a cascade control procedure. An important feature of the equipment is the integration of the data acquisition system with the supervisory control system that allows the capability of an advanced strategy for process control and data acquisition. The capability of the reaction system is demonstrated for the microemulsion polymerization of vinyl acetate, by the use of batch and isothermal operational modes. The course of the reaction is followed on-line by the temperature variation of the jacket. Procedures are described for the calibration of the unit. The reactor developed is versatile, is easy to configure and extend, is low cost, and can compete advantageously with commercial reactor units such as the Mettler RC1.
Journal of Chemical & Engineering Data, 2001
Consistent vapor-liquid equilibria data at 94.00 kPa have been determined for the ternary system ... more Consistent vapor-liquid equilibria data at 94.00 kPa have been determined for the ternary system 1-hexene + ethyl 1,1-dimethylethyl ether + benzene and for its constituent binary 1-hexene + benzene, in the temperature range 334-351 K. According to the experimental results, the systems exhibit slight positive deviations from ideal behavior and no azeotrope is present. The VLE data have been correlated with the mole fraction using the Redlich-Kister, Wilson, NRTL, UNIQUAC, and Tamir relations. These models, in addition to UNIFAC, allow good prediction of the VLE properties of the ternary system from those of the pertinent binary systems.
Journal of Chemical & Engineering Data, 1998
Pure-component vapor pressures and vapor-liquid equilibrium data at 94 kPa have been determined f... more Pure-component vapor pressures and vapor-liquid equilibrium data at 94 kPa have been determined for the binary systems methyl 1,1-dimethylethyl ether + benzene and methyl 1,1-dimethylethyl ether + toluene. The systems exhibit regular behavior and a slight positive deviation from ideality, and no azeotrope is present. The data were correlated by the Wisniak-Tamir equation, and the appropriate parameters are reported.
Journal of Chemical & Engineering Data, 2001
Isobaric vapor−liquid equilibrium (VLE) data at 94.00 kPa have been determined for the ternary sy... more Isobaric vapor−liquid equilibrium (VLE) data at 94.00 kPa have been determined for the ternary system 1-hexene + ethyl 1,1-dimethylethyl ether + benzene and for its constituent binary system 1-hexene + 2,2,4-trimethylpentane (isooctane), in the temperature range 335 to 360 K. ...
Journal of Chemical & Engineering Data, 1997
Vapor−liquid equilibrium at 94 kPa has been determined for the systems hexane + heptane and methy... more Vapor−liquid equilibrium at 94 kPa has been determined for the systems hexane + heptane and methyl 1,1-dimethylethyl ether (MTBE) + hexane + heptane. The binary system exhibits regular, almost ideal behavior, and no azeotrope is ...
Physics and Chemistry of Liquids, 1999
P hp Chem. Liq., 1999, Vol. 37, pp. 649-660 Reprints available directly from the publisher Photoc... more P hp Chem. Liq., 1999, Vol. 37, pp. 649-660 Reprints available directly from the publisher Photocopying permitted by license only 1999 OPA (Overseas Publishers Association) NV Published by license under the Gordon and Breach Science ...
Physics and Chemistry of Liquids, 2003
Vapor–liquid equilibrium data at 50, 75 and 94 kPa have been determined for the binary system met... more Vapor–liquid equilibrium data at 50, 75 and 94 kPa have been determined for the binary system methyl 1,1-dimethylethyl ether þ 2-propanol, in the temperature range 308– 344 K. The measurements were made in an ...
Physics and Chemistry of Liquids, 2001
Vapor-liquid equilibrium has been determined at 94 and 70kPa for the binary system methanol+ethyl... more Vapor-liquid equilibrium has been determined at 94 and 70kPa for the binary system methanol+ethyl 1,l-dimethylethyl ether. The system deviates positively from ideal behavior and presents a minimum boiling azeotrope at 329
Journal of Chemical & Engineering Data, 1999
Consistent vapor-liquid equilibria (VLE) at 94.00 kPa has been determined for the ternary system ... more Consistent vapor-liquid equilibria (VLE) at 94.00 kPa has been determined for the ternary system ethyl 1,1-dimethylethyl ether + 2,2,4-trimethylpentane + methylcyclohexane and the two constituent binaries ethyl 1,1-dimethylethyl ether + methylcyclohexane and 2,2,4-trimethylpentane + methylcyclohexane in the temperature range from 343 to 371 K. In addition, vapor pressures have been measured for methylcyclohexane from 331 to 374 K. According to the experimental results, the systems exhibit slight positive deviations from ideal behavior and no azeotrope is present. The VLE data have been correlated with the composition using the Redlich-Kister, Wilson, NRTL, UNIQUAC, and Wisniak-Tamir relations. These models, in addition to UNIFAC, allow good prediction of the VLE properties of the ternary system from those of the pertinent binary systems.
Industrial & Engineering Chemistry Research, 1996
Polyazeotropy in binary systems is a very singular case of vapor-liquid equilibrium (VLE), and it... more Polyazeotropy in binary systems is a very singular case of vapor-liquid equilibrium (VLE), and its causes have not been studied in detail. The unique evidence about the phenomenon is the experimental VLE results for the benzene-hexafluorobenzene system, which exhibits two simultaneous azeotropes. The purpose of this work is to make a thermodynamical analysis of polyazeotropy at low pressures and to establish the necessary and sufficient conditions that provoke it. The evolution of polyazeotropes with temperature and pressure is explained, and the criteria to predict azeotropic behavior from minimal information are developed. This study also delivers some important results about the possibility of predicting polyazeotropy using classical G E models and about estimation of the parameters for excess energy models from activity coefficients at infinite dilution, in particular, when this procedure generates changes of concavity for the G E function. IE960054A X Abstract published in Advance ACS Abstracts, August 15, 1996.
Fluid Phase Equilibria, 1999
Vapor-liquid equilibrium at 94 kPa has been determined for the ternary system ethyl 1,1-dimethyle... more Vapor-liquid equilibrium at 94 kPa has been determined for the ternary system ethyl 1,1-dimethylethyl ether Ž . ETBE q heptaneq octane. The system deviates slightly from ideality and no azeotrope is present. The ternary activity coefficients and the boiling points of the system have been correlated with the composition using the Redlich-Kister, Wilson, NRTL, UNIQUAC, UNIFAC, and Wisniak-Tamir relations. Most of the models allow a very good prediction of the activity coefficients of the ternary system from those of the pertinent binary systems. q
Fluid Phase Equilibria, 1999
Consistent vapor-liquid equilibrium data at 94 kPa have been determined for the ternary system he... more Consistent vapor-liquid equilibrium data at 94 kPa have been determined for the ternary system hexaneq ethyl 1,1-dimethylethyl ether q heptane. The results indicate that the system deviates positively from ideality and that no azeotrope is present. The ternary system were predicted with the composition by the Redlich-Kister, Wilson, NRTL, UNIQUAC and UNIFAC models using only the parameters of the constituent binaries. Most of the models allow a very good prediction of the phase equilibrium of the ternary system. In addition, the Wisniak-Tamir relations were used for correlating bubble-point temperatures. q 1999 Elsevier Science B.V. All rights reserved.
Physics and Chemistry of Liquids, 2000
Page 1. Phys. Chem. Liq.. ZOOO, Vol. 38. pp. 391 -404 Reprints available directly from the publis... more Page 1. Phys. Chem. Liq.. ZOOO, Vol. 38. pp. 391 -404 Reprints available directly from the publisher Photocopying permitted by license only 0 2oaO OPA (Overseas Publishers Association) NV Published ...
Physics and Chemistry of Liquids, Sep 24, 2006
Vapor-liquid equilibrium has been determined at 94 and 70kPa for the binary system methanol+ethyl... more Vapor-liquid equilibrium has been determined at 94 and 70kPa for the binary system methanol+ethyl 1,l-dimethylethyl ether. The system deviates positively from ideal behavior and presents a minimum boiling azeotrope at 329
Physics and Chemistry of Liquids, 2001
Phys. Chem. Llq.. 2001. Vol. 39. pp. 43-54 Reprints available directly from the publisher Photoco... more Phys. Chem. Llq.. 2001. Vol. 39. pp. 43-54 Reprints available directly from the publisher Photocopying pcnnitted by license only 0 2001 OPA (Oversea Publishem Association) NV Published by license under the Gordon and Bnach Science ...
Revista CENIC. Ciencias Químicas, 2006
... acquainted with the most famous European chemists, particularly Jöns Jacob Berzelius (1779-18... more ... acquainted with the most famous European chemists, particularly Jöns Jacob Berzelius (1779-1848) in Sweden and Théophile-Jules Pelou-ze ... Addition of caustic al-kali precipitates lead dioxide while addition of potassium carbonate yields a brown precipitate, accom-panied ...
Revista CENIC. Ciencias Químicas, 2005
... Wisniak, Jaime Guillaume Amontons Revista CENIC. Ciencias Químicas, vol. 36, núm. 3, 2005, pp... more ... Wisniak, Jaime Guillaume Amontons Revista CENIC. Ciencias Químicas, vol. 36, núm. 3, 2005, pp. ... Key words: barometer, thermometry, absolute zero, hygrometer, telegraph, external-combustion machine, friction in machines. Guillaume Amontons Jaime Wisniak. ...
Indian journal of chemical technology, 2005
... In 1836, in the United States, Alonzo Dwight Phillips of Springfield, Massachusetts, obtained... more ... In 1836, in the United States, Alonzo Dwight Phillips of Springfield, Massachusetts, obtained the first patent24 for manufacturing friction matches, which he called Loco ... in 1844 by the Swede Gustaf Erik Pasch (1788-1862), a professor in chemistry and a partner in JS Bagge & Co ...
Journal of Materials Engineering and Performance, 2004
Indian journal of chemical technology, 2005