نتایج جستجو برای: dispersed solvent extraction dnpdse contractor

تعداد نتایج: 239675  

2005
Sven Ubik

This document provides description of evaluation tests performed on the SCAMPI architecture. This is the fourth release of D3.4 deliverable. It includes performance tests of the SCAMPI architecture software running on top of 1 GE SCAMPI with monitoring functions implemented in software and firmware. It also includes tests with 10 GE SCAMPI adapter and several application tests. Contractual Date...

Knowledge of droplet behavior is one of the most important criteria for determination of mass transfer kinetics for choosing the type of liquid-liquid extraction columns. Mean drop size data of dispersed phase droplets in continuous phase have been obtained for Various Rotary Agitated Liquid-Liquid Extraction Columns . The effects of operational variables such as mass transfer directions with a...

In this work, the dispersed phase holdup in a Kühni extraction column is predicted using intelligent methods and a new empirical correlation. Intelligent techniques, including multilayer perceptron and radial basis functions network are used in the prediction of the dispersed phase holdup. To design the network structure and train and test the networks, 174 sets of experimental data are used. T...

Journal: :analytical and bioanalytical chemistry research 0
abbas afkhami faculty of chemistry, bu-ali sina university, hamedan, iran massoumeh pirdadeh-beiranvand faculty of chemistry, bu-ali sina university, hamedan, iran tayyebeh madrakian faculty of chemistry, bu-ali sina university, hamedan, iran

a method based on the ultrasound-assisted solidification of floating drop microextraction technique was developed for the spectrophotometric and spectrofluorimetric determination of curcumin in turmeric powder. in this work a small volume of an organic solvent was floated on the surface of an aqueous solution. after sonication the organic solvent is solidified and separated. the effect of extra...

2011

IntroductIon The presence of polychlorinated biphenyls (PCBs) in fish and other marine organisms is of immediate environmental and regulatory concern. To determine the concentrations of PCBs indicative of contaminant exposure, and lipids, which also characterize physiological conditions of fish, the analytes must first be extracted. Traditionally, this has been done using Soxhlet methods that a...

Journal: Journal of Herbal Drugs 2010
Afsaneh Yegdaneh, Behzad Zolfaghari

Various novel techniques including ultrasound-assisted extraction, microwave-assisted extraction and supercritical fluid extraction have been developed for the extraction of medicinal plants in order to shorten the extraction time, decrease the solvent consumption, increase the extraction yield, and enhance the quality of extracts. This review was conducted to introduce and compare the conventi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - پژوهشکده فنی و مهندسی 1388

asymmetric polyethersulfone (pes) microfiltration flat sheet membranes were composed by the phase inversion method (pim) and were used as supports. composite membranes were fabricated by coating silicone rubber as selective layer. effect of different concentrations of pes and pdms and different solvent such as nmp, dmf and dms effects as pes solvents and support thickness and different coagulat...

Journal: :Green Chemistry 2023

The use of natural product limonene as extraction solvent offers multiple benefits that go beyond its environmentally benign nature.

2017
Pravin J. Munde Abhijeet B. Muley Mayur R. Ladole Amesh V. Pawar Mohammed I. Talib Vishal R. Parate

In the present work, optimization of pectinase-assisted and tri-solvent-mediated extraction of lycopene from waste tomato peels was carried out. The optimized parameters for enzymatic pre-treatment were 2% pectinase concentration, pH 5.5, 4-h incubation, 45 °C and 150 rpm. Maximum recovery of lycopene from tomato peels using optimized tri-solvent extraction was achieved at 45 °C, 120-min incuba...

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