02227nas a2200253   4500008004100000022001400041245012500055210006900180260000800249300001100257490000800268520135000276653001501626653002201641653001301663653002001676653002201696653003501718100002501753700002101778700002601799700002201825856012601847       2021                        eng d  a0255-270100aUltrasound assisted curcumin recovery from Curcuma aromatica: understanding the effect of different operating parameters0 aUltrasound assisted curcumin recovery from Curcuma aromatica und  cDEC  a1086040 v1693 aThe present study deals with intensified extraction of curcumin from Curcuma aromatica by employing ultrasound-assisted extraction (UAE) approach also elucidating comparison with the conventional batch extraction to highlight the intensification benefits based on the usage of ultrasound. Understanding into the effect of operational parameters like type of solvent, extraction temperature, solid to solvent ratio and raw material size distribution as well as the equipment operating conditions as frequency and power on the extraction yield has been developed. Based on the results for extraction yield, the optimum conditions for UAE approach were 40 degrees C as temperature, 1:30 as solid to solvent ratio, 0.09 mm as the mean particle size, 240 W as ultrasonic power, 22 kHz as ultrasonic frequency and ethanol as the most suitable solvent. Under these optimum conditions, the highest extraction yield of 73.18% was achieved in 2 h whereas batch extraction for 14 h resulted in 52.31% yield clearly demonstrating the intensification due to ultrasound. Peleg's model was applied to explain the extraction kinetics of curcumin and the proposed model satisfactorily predicted the rates of extraction of cur cumin. Overall, UAE proved to be a better technique in terms of lesser time, lesser heating requirement and additional extraction yield.10aCavitation10aCurcuma aromatica10acurcumin10aIntensification10aKinetic modelling10aUltrasound assisted extraction1 aShirsath, Sachin, R.1 aSable, Sunil, S.1 aGaikwad, Shashank, G.1 aGogate, Parag, R.  uhttps://library.ncl.res.in/content/ultrasound-assisted-curcumin-recovery-curcuma-aromatica-understanding-effect-different02040nas a2200277   4500008004100000022001400041245014700055210006900202260000900271300001400280490000700294520113500301653001201436653000801448653000901456653001301465653001201478653001201490100002601502700002501528700002401553700002201577700001901599700002001618856012401638       2023                        eng d  a0149-639500aLiquid-liquid equilibria of ternary mixtures containing Aniline plus Toluene plus water at elevated temperatures: measurements and correlation0 aLiquidliquid equilibria of ternary mixtures containing Aniline p  cNOV   a2718-27250 v583 a<p>
	Liquid-liquid equilibrium (LLE) data for the ternary system, Aniline + Toluene + Water, was measured at different temperatures of 298.15 K, 313.15 K and 323.15 K under atmospheric pressure with the help of High-Performance Liquid Chromatography (HPLC) analysis and Karl-Fischer technique. The efficiency of Toluene to extract Aniline from aqueous phase was then quantified in terms of the distribution coefficient and separation factor based on the tie line data. The system showed very good separation ability quantified in terms of high values of distribution factor (average around 7) and separation factors (as high as 1000). The experimental tie line data was verified by Hand and Othmer-Tobias equations. The LLE data was also correlated using NRTL and UNIQUAC models and both of them were able to represent the behavior of the system accurately when tested against experimental results. Toluene has been demonstrated to be very efficient to extract Aniline from reaction mixture, which is typically a by-product in hydrogenation of nitrobenzene, a process commercially used to produce p-Aminophenol in industry.</p>
10aAniline10aLLE10aNRTL10aTie line10aToluene10aUNIQUAC1 aGaikwad, Shashank, G.1 aPathak, Abhishek, A.1 aMote, Dhananjay, R.1 aGogate, Parag, R.1 aSingh, Shivani1 aModhera, Bharat  uhttps://library.ncl.res.in/content/liquid-liquid-equilibria-ternary-mixtures-containing-aniline-plus-toluene-plus-water