Hydrodynamic and Mass Transfer Characteristics of an Electrostatic Liquid-liquid Extraction Column PDF Download
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Author: Izdihar Abdul-Ahad Mani
Publisher:
ISBN:
Category :
Languages : en
Pages : 226
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Book Description
Experimental results obtained on a small scale electrostatic liquid-liquid extraction column showed that electrostatic coalescence can effectively counterbalance the droplet dispersion caused by high shear mixing, thus enhancing the coalescence-redispersion cycle which increases the rate of surface renewal and also the rate of mass transfer. A fuller understanding of the inter-relationships between throughput, impeller speed, electric field strength was accomplished. The effect of rotor speed, voltage, total throughput and superficial phase flowrates upon hold-up were determined quantitatively Slip velocity was correlated as: Vs = Vk (l-h)m where (m) is a function of rotor speed and voltage. Three reg ons of column operation with regard to slip velocity were recognised, subcritical, critical and supercritical. Column mass transfer performance was determined in terms of the effects of rotor speed, voltage and total throughput. A new approach in expressing column performance based upon the coalescence-redispersion cycle presentation, mass transfer and overall available surface area, was achieved. Optimum column operation condition was found to be at: 2 kV, 2000 min-1, L min-1.
Author: Izdihar Abdul-Ahad Mani
Publisher:
ISBN:
Category :
Languages : en
Pages : 226
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Book Description
Experimental results obtained on a small scale electrostatic liquid-liquid extraction column showed that electrostatic coalescence can effectively counterbalance the droplet dispersion caused by high shear mixing, thus enhancing the coalescence-redispersion cycle which increases the rate of surface renewal and also the rate of mass transfer. A fuller understanding of the inter-relationships between throughput, impeller speed, electric field strength was accomplished. The effect of rotor speed, voltage, total throughput and superficial phase flowrates upon hold-up were determined quantitatively Slip velocity was correlated as: Vs = Vk (l-h)m where (m) is a function of rotor speed and voltage. Three reg ons of column operation with regard to slip velocity were recognised, subcritical, critical and supercritical. Column mass transfer performance was determined in terms of the effects of rotor speed, voltage and total throughput. A new approach in expressing column performance based upon the coalescence-redispersion cycle presentation, mass transfer and overall available surface area, was achieved. Optimum column operation condition was found to be at: 2 kV, 2000 min-1, L min-1.
Author: Ningsheng Yang
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Javad Saien Ghalehchian
Publisher:
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Category :
Languages : en
Pages :
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Author: Takao Tsuda
Publisher: John Wiley & Sons
ISBN: 3527615245
Category : Science
Languages : en
Pages : 327
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This authoritative review brings scientists up-to-date with the exciting recent developments in modern electric field applications and highlights their benefits compared with other methods. In Part 1 the book opens with a complete account of electrochromatography - a state-of-the-art technique that combines chromatography and electrophoresis. It reveals how you can achieve first-class separations in numerous analytical and biochemical applications. Part 2 focuses on the unique characteristics of electroprocesses in industry, and several examples, such as electroosmotic dewatering, new electro-rheological fluid technologies and demulsification processes in the car and oil industries, are given. The role of the electric field in chemical processes is discussed in Part 3. The chapters explore its use in concentration processes, immunoassay and molecular orientation methods, and important examples are presented in each case. This book is essential reading for analytical chemists, applied chemists and chemical engineers working in research and development wishing to keep up with this dynamic field.
Author: T. Sekine
Publisher: Elsevier
ISBN: 0444596399
Category : Technology & Engineering
Languages : en
Pages : 870
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Book Description
Solvent extraction is employed very widely in both fundamental research and technology because of the remarkable features of this simple but very effective technique for the separation of different materials. The International Solvent Extraction Conference 1990 was a forum for the presentation of papers on up-to-date research in this field. The collection of the papers in these volumes will be invaluable because information on solvent extraction is often scattered in various journals and proceedings which make the following of developments difficult.
Author: Albert Frank Seibert
Publisher:
ISBN:
Category : Extraction (Chemistry)
Languages : en
Pages : 180
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Author: Geert Feye Woerlee
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 216
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Author: Richard Joseph Lahiere
Publisher:
ISBN:
Category : Hydrodynamics
Languages : en
Pages : 178
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Author: Albert Frank Seibert (Jr.)
Publisher:
ISBN:
Category : Hydrodynamics
Languages : en
Pages : 180
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