New liquid-liquid extraction column with random packed agitation structure for heavy metal removal and hydrodynamic evaluation

M Asadollahzadeh, R Torkaman, M Torab-Mostaedi - Minerals Engineering, 2022 - Elsevier
A new random packed agitation column was presented to enhance the evaluation of
dispersed phase holdup and hydrodynamic velocities. The extraction of cobalt ions from an …

Thorough assessment of a crucial element pertaining to the distribution and average dimensions of droplet sizes in a solvent extraction column

M Asadollahzadeh, R Torkaman - Separation Science and …, 2024 - Taylor & Francis
Designing and optimizing solvent extraction columns requires careful consideration of the
determination and distribution of drop diameters. The size of droplets is influenced by the …

Experimental investigation on dispersed phase holdup in an L-shape pulsed packed extraction column

S Khooshechin, J Safdari, MH Mallah… - Progress in Nuclear …, 2021 - Elsevier
In this study, the dispersed phase hold-up has been investigated in a pilot plant of a new
type of extraction column entitled “L-shaped pulsed packed extraction column” by using two …

Modeling dispersed phase holdup and conditions of flooding in a pulsed disc and doughnut solvent extraction column

V Sinha, T Vincent, M Pera-Titus - Chemical Engineering Journal, 2025 - Elsevier
Pulsed disc and doughnut solvent extraction columns (PDDCs) have emerged as an
efficient alternative to conventional mixer-settlers and pulsed sieve plate extraction columns …

A new approach for scale-up of pulsed disc and doughnut columns based on the similarity principle

D Xu, C Wang, C Chang, B Tan, F Chen, X Duan… - Separation and …, 2025 - Elsevier
A detailed experimental study is performed to understand the effect of scaling up on the
hydrodynamic behavior of Pulsed Disc and Doughnut Columns (PDDCs) using three …

Effects of the presence and absence of nanoparticles in the hold-up and hydrodynamic velocities in the pulsed disc and doughnut column by using central composite …

R Torkaman, MRA Rovais, M Heydari… - Progress in Nuclear …, 2022 - Elsevier
The pulsed disc and doughnut column (PDDC) presents a valuable and profoundly
satisfying solution for recovering and purifying components from mixtures when a separation …

Experimental modeling of slip velocity in an L-shape pulsed packed extraction column using response surface methodology

S Khooshechin - Annals of Nuclear Energy, 2024 - Elsevier
The “L-shaped pulsed packed extraction column,” a distinctive form of extraction column, is
used in this study to examine the impacts of operational parameters and the physical …

Mass transfer performance of pulsed disk and doughnut column (PDDC) in the extraction of active ingredients in peppermint extract obtained by hot percolation

ZS Hosseini, H Bahmanyar… - … Canadian Journal of …, 2024 - Wiley Online Library
The active ingredients in peppermint are widely used in the pharmaceutical, food, cosmetic,
and other industries. The traditional methods for producing peppermint extract through …

Unified correlations for the prediction of the slip velocity, characteristic velocity, flooding throughput and flooding slip velocity in a pulsed disc and doughnut extraction …

V Sinha, T Vincent - Chemical Engineering Communications, 2023 - Taylor & Francis
Pulsed disc and doughnut columns (PDDC) have become an integral part of the nuclear fuel
reprocessing and hydrometallurgical industries for quite some time. In this study, five unified …

Prediction of Flooding Characteristic in Pulsed Disc and Doughnut Extraction Column Using LASSO Method

L Jin, H He, Y Zhou, H Hou, M Zhang, Y Gao - Nuclear Technology, 2024 - Taylor & Francis
For achieving high separation efficiency and a large throughput in the nuclear fuel
reprocessing industry, it is crucial to have a profound understanding of the flooding …