Written in EnglishRead online
Bibliography: p. 63-65.
|LC Classifications||QD945 .K3213|
|The Physical Object|
|Number of Pages||65|
|LC Control Number||63017640|
Download effects of ultrasound on the kinetics of crystalization.
The main effect of ultrasound on matter is to change the energy state considerably; an ultra 6 2 sound flux as low as 10 W/cm at 3 x 10 cis produces a pressure wave whose amplitude is 5 atm, while the 5 Author: Alexander P.
Kapustin. The main effect of ultrasound on matter is to change the energy state considerably; an ultra 6 2 sound flux as low as 10 W/cm at 3 x 10 cis produces a pressure wave whose amplitude is 5 atm, while the 5.
Effects of ultrasound on the kinetics of crystalization. book ultrasound is applied to a solution for crystallization, it can affect the properties of the crystalline products significantly. Ultrasonic irradiation decreases the induction time and metastable zone and increases the nucleation rate.
Due to these effects Cited by: Effects of ultrasound on the kinetics of crystalization. New York, Consultants Bureau, (OCoLC) Online version: Kapustin, A.P. (Aleksandr Pavlovich), Effects of ultrasound on the kinetics of crystalization.
New York, Consultants Bureau, (OCoLC) Document Type: Book. In this study the effect of ultrasonic irradiation on crystallization kinetics of potassium dihydrogen phosphate which is an important substance in industrial processes is presented.
For this study it is aimed to clarify the effect of ultrasound Cited by: In this work, NaX zeolite was synthesized and the effect of ultrasound irradiation on reaction kinetics, morphological and structural properties was investigated.
Ultrasound was applied, by using a plate transducer ( kHz), for the first time during the crystallization. In the present study, the effect of ultrasound application was investigated on the crystallization kinetics, at high temperature (>80 °C), and on the particle size distribution control (agglomeration control) of zeolite NaX (FAU type).
The ultrasound power, the duration and the moment of irradiation to apply ultrasound. Ultrasound can also influence crystal growth [20,25,26,36,40, although the effect on crystal growth is not as dramatic as on nucleation and arises largely from enhanced mass transfer.
A positive effect of ultrasound on crystallization has been shown for many applications especially on small scale. Predictable scale‐up of sonocrystallization is a challenge due to the inherent dependency of ultrasound.
Kinetics of Crystallization • Majority of studies on 'crystallization' are really the combined processes of nucleation and growth. • Considerable commercial interest in the rate of transformation from the melt to the semi-crystalline state.
-Processing. • What are the effects of various additives on crystallization. However, crystallization of sucrose under the influence of power ultrasound was found to obey first order kinetics in the temperature range of 30–50 °C. The magnitude of the velocity constant K ≃ 10 −5 s −1 is surprisingly of a low order as the crystallization.
'The effects of ultrasound on the kinetics of crystallization', Consultants Bureau, New York, 41 () 14 21 Ibid, 23 22 Sokolov, S. Ya., Technical Physics of the USSR, 3, () in Kapustin. Effect of ultrasound and stabilizers on metastable zone width (MSZW) of curcumin: variation of MSZW with antisolvent mole fraction (solid lines are guide to the reader's eyes).
Power ultrasound has proved to be very useful in controlling crystallization processes since sonication can enhance both the nucleation rate and crystal growth rate by producing fresh and/or more nucleation sites.
Therefore, in this study, power ultrasound. This paper investigates, for the first time, the breaking mechanism of particles exposed to implosions of stable and transient cavitation bubbles via Kapur function analysis.
The effect of ultrasonic. The effect of high intensity ultrasound (HIU) on the kinetics of crystallization of sucrose: Elimination of latent period.
Ultrasonics Sonochemistry52, DOI: /ch. In addition, crystallization temperature, degree of crystallization, and type of medium modifying the effect of HIU on crystallization behavior of the material (Martini et al., ; Ye et al.
This work aims to show the potential of applying video imaging techniques to antisolvent crystallization of paracetamol in an oscillatory baffled crystallizer for the determination of crystal size distribution and mean crystal size with a high level of accuracy in comparison with the values measured with a Mastersizer.
From these data, the effects. What is sonocrystallization. Sonocrystallization involves the application of ultrasound energy to control the nucleation and crystal growth of a crystallization is a relatively modern technique (first reported in ) compared to traditional crystallization methods and enables nucleation at the lowest level of supersaturation where the crystallization.
Chang Li, Jie Lin, Liming Shen, Ningzhong Bao, Quantitative Analysis and Kinetic Modeling of Ultrasound-assisted Exfoliation and Breakage Process of Graphite Oxide, Chemical Engineering. Sono-crystallization kinetics of K2SO4: Estimation of nucleation, growth, breakage and agglomeration kinetics.
Ultrasonics Sonochemistry35, DOI: /ch Hui Teng, Lei Chen, Won Young Lee. Anti-Solvent Crystallization of L-Alanine and Effects of Process Parameters and Ultrasound.
This study investigates the use of a short ultrasonic burst at the beginning of a cooling crystallization to achieve a growth dominated process and produce crystals with regular habit without the requirement of inoculation of seeds.
The results of conventionally seeded crystallization. The ultrasound effect applied on potassium dihydrogen phosphate was investigated in a continuous crystallization system.
The studied process variables were ultrasonic power (W) and residence time. The effect of ultrasound vibrations on the cooling crystallization of sodium arsenate in supersaturated solutions was investigated. In particular, the effects of ultrasound vibrations on induction.
Crystallization of Organic Compounds begins with detailed discussions of fundamental thermodynamic properties, nucleation and crystal growth kinetics, process dynamics, and scale-up considerations.
Next, it investigates modes of operation, including cooling, evaporation, anti-solvent, and reactive s: 1. Cite this chapter as: Kapustin A.P. () Methods and Apparatus for Studying Crystallization and Dissolution in Ultrasonic Fields. In: The Effects of Ultrasound on the Kinetics of Crystallization.
The objective of this study was to evaluate the effect of wax concentration ( and 1%), cooling rate (, 1, and 10 °C/min), and high-intensity ultrasound (HIU) on the crystallization.
This article presents a rigorous kinetic model that takes into account the diffusional transport of all species involved in CaCO 3 wall deposition under turbulent flow as well as the kinetics of the CaCO 3 crystallization.
Application of ultrasound during crystallization can efficiently inhibit agglomeration. However, the mechanism is unclear and sonication is usually enabled throughout the entire process, which.
Ashwini Wagh, Marie K. Walsh, Silvana Martini, Effect of Lactose Monolaurate and High Intensity Ultrasound on Crystallization Behavior of Anhydrous Milk Fat, Journal of the American Oil. Crystallization of Organic Compounds begins with detailed discussions of fundamental thermodynamic properties, nucleation and crystal growth kinetics, process dynamics, and scale-up considerations.
Next, it investigates modes of operation, including cooling, evaporation, anti-solvent, and reactive crystallization. Reliable information on solubility and crystallization kinetics is of utmost importance for a robust crystallization process design . Commercial equipment is available to accurately measure.
The effects of Ultrasound technology have been proven to have many effects on the fetal bodies. In Australia a study conducted on pregnant women showed that women who had 5 monthly ultrasound.
Crystallize CBD - of Salsalate for Effects of Ultrasound range. The sonication of method to prepare superior Download PDF Translucent Nanoemulsion (the crystalline hair-like structures use this article to used to crystal bioavailability sonochemistry; acoustic cavitation; crystal for extracting matter/trichrome seeded cooling crystallization.
Cite this chapter as: Kapustin A.P. () Crystallization Processes of Organic Compounds. In: The Effects of Ultrasound on the Kinetics of Crystallization. Crystallization Sonochemical Effects on Carbohydrate Depolymerization Effects of Ultrasound on Biotechnological Processes Depolymerization Other Bioprocesses Conclusions and Future Trends Acknowledgements References 18 Effect of Ultrasound.
Ultrasound has been used physically or chemically in many aspects of food processing and preservation, for example pasteurization, sterilization, generation of emulsions, disruption of cells, promotion of chemical reactions, inhibition of enzymes, tenderizing meat and modification of crystallization.
The need to eliminate trans-fatty acids from foods’ formulation resulted in the exploration of new lipid sources and alternative processing conditions that will improve the physicochemical characteristics and nutritional qualities of lipid-based foods.
In general, the physicochemical characteristics of lipid networks depend on the microstructure and crystallization. N1, N6-bis (4-aminobutyl) adipamide (BABA) diamine and sebacic acid (SA), also called BABA/SA polyamide salt, were used in a typical melt polymerization processes of polyamide 6 (PA6) to form a series of PA6-BABA/SA copolyamides.
The effects of BABA/SA on the isothermal crystallization kinetics of PA6-BABA/SA were studied for the first time. An isothermal crystallization. Finally, the combined effects of a polymer, hydroxypropyl methyl cellulose acetate succinate, and the testing media on crystallization kinetics were evaluated to provide insights into supersaturation formulation design.
Solution bile salt composition was found to significantly influence crystallization kinetics. The objective of this research was to evaluate the effect of high‐intensity ultrasound (HIU) and crystallization temperature (T c) on the crystallization behavior, melting profile, and elasticity of a soft stearin fraction of high‐stearic high‐oleic sunflower s showed that HIU can be used to induce and increase the rate of crystallization.
Book Search tips Selecting this option will search all publications across the Scitation platform Selecting this option will search all publications for the The Effects of Ultrasound on the Kinetics of Crystallization (Consultants Bureau, New York “ Crystallization .This study investigated the extraction of betalains from red beet by an ultrasound‐assisted process using water as solvent.
For this purpose, the effect of time and temperature on ultrasound‐assisted extraction (UAE) was evaluated, and together the effect of ultrasound .