Separation Science and Technology (SEP SCI TECHNOL)

Publisher: Taylor & Francis

Journal description

Exploring the wide range of separation phenomena, Separation Science and Technology reviews the newest concepts and techniques for dealing with problems encountered by professionals in this rapidly expanding field. It offers authoritative and critical articles, notes, and reviews on all the varied aspects of separation, including separation theory, membranes, extraction, flocculation, crystallization, distillation, ultrafiltration, chromatography, electrophoresis, foam fractionation, adsorption, and ion exchange.

Current impact factor: 1.17

Impact Factor Rankings

2015 Impact Factor Available summer 2016
2014 Impact Factor 1.171
2013 Impact Factor 1.2
2012 Impact Factor 1.164
2011 Impact Factor 1.088
2010 Impact Factor 1.015
2009 Impact Factor 1.028
2008 Impact Factor 1.139
2007 Impact Factor 1.048
2006 Impact Factor 0.824
2005 Impact Factor 0.834
2004 Impact Factor 0.896
2003 Impact Factor 0.89
2002 Impact Factor 0.779
2001 Impact Factor 0.862
2000 Impact Factor 0.725
1999 Impact Factor 0.911
1998 Impact Factor 0.695
1997 Impact Factor 0.761

Impact factor over time

Impact factor

Additional details

5-year impact 1.29
Cited half-life 8.60
Immediacy index 0.15
Eigenfactor 0.01
Article influence 0.30
Website Separation Science and Technology website
Other titles Separation science and technology (Online), Separation science and technology
ISSN 0149-6395
OCLC 39497122
Material type Document, Periodical, Internet resource
Document type Internet Resource, Computer File, Journal / Magazine / Newspaper

Publisher details

Taylor & Francis

  • Pre-print
    • Author can archive a pre-print version
  • Post-print
    • Author can archive a post-print version
  • Conditions
    • Some individual journals may have policies prohibiting pre-print archiving
    • On author's personal website or departmental website immediately
    • On institutional repository or subject-based repository after either 12 months embargo
    • Publisher's version/PDF cannot be used
    • On a non-profit server
    • Published source must be acknowledged
    • Must link to publisher version
    • Set statements to accompany deposits (see policy)
    • The publisher will deposit in on behalf of authors to a designated institutional repository including PubMed Central, where a deposit agreement exists with the repository
    • STM: Science, Technology and Medicine
    • Publisher last contacted on 25/03/2014
    • This policy is an exception to the default policies of 'Taylor & Francis'
  • Classification

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: Ammonium ion exchange behavior of synthetic zeolites, i.e., sodalite (SOD), rho zeolite (RHO), Linde type A zeolite (LTA), and faujasite zeolite (FAU), was investigated by changing the initial concentration of ammonium ions and reaction time. Ammonium ion exchange behavior was dependent on the open‐window sizes, the pore structures, and the cation exchange capacities of these zeolites. Regarding sodalite with Na ions (Na‐SOD), ammonium ion exchange did not completely occur at the equilibrium state because the open‐window size is smaller than the diameter of ammonium ions. Regarding RHO with Na and Cs ions (NaCs‐RHO), the larger cations, Cs ion, in the cages obstructed the ion exchange at the initial stage. However, the amount of exchanged ammonium ions gradually increased with increasing reaction time, finally achieving equilibrium. Regarding LTA with Na ions (Na‐LTA), the amount of exchanged ammonium ions decreased with increasing reaction time, and then reached plateau. It indicated that both the ion exchange on the α‐cages and physical adsorption on the β‐cages occurred at the initial stage, which was followed by the equilibrium state of ion exchange on the α‐cages. Regarding FAU with Na ions (Na‐FAU), no dependence on reaction time was observed, because the size of the open‐windows is large enough for ion exchange of ammonium ions. The Na‐FAU, which has the biggest open‐windows among these zeolites, showed the highest exchange capacity for ammonium ions, 3.20 mmol/g.
    Separation Science and Technology 01/2091; 39(9-9):2091-2104. DOI:10.1081/SS-120039306
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    ABSTRACT: Di(2-ethylhexyl)phosphoric acid (D(2)EHPA) has the tendency to adsorb at interfaces in an oriented fashion due to the amphiphilic structure. The study of the surface tension shows that the adsorption of D(2)EHPA at interface can lower the surface tension of ethanol solution. The amount of adsorption is affected by the pH and ionic strength of the solution. Being a small surface-active molecule, a monolayer of D(2)EHPA molecules can be immobilized on the surface of nonpolar Amberlite XAD-4 resin by a two-step, organic solvent-nonorganic solvent process. The amount of immobilized D(2)EHPA is as high as 1.02 (mol/kg of resin). The electron spectroscopy for chemical analysis (ESCA) results show that the immobilized D(2)EHPA undergoes reorientation by further exposing the phosphoric acid group to the water phase. Since the hydrophobic alkyl chains of D(2)EHPA physically entangle with the surface polymer chains of Amberlite XAD-4, the immobilized extractant has good stability on the resin surface. This D(2)EHPA-modified Amberlite XAD-4 can be used for the separation of lead and copper ions as an ion-exchange resin. Ion-exchange isotherm experiments show that D(2)EHPA-modified resin has higher Pb ion affinity than Cu ion. This new type of D(2)EHPA-modified resin shows better Ph and Cu ions separation than analogous D(2)EHPA-impregnated resin [extractant-impregnated resin (EIR)] and solvent extraction system. The selective separation results using series contacts of solution mixtures with resins further demonstrated the feasibility of using D(2)EHPA-modified Amberlite XAD-4 resin for the separation of Pb/Cu mixed ion solution. After only six batches of contacts, the relative ion concentration of Cri ion increases from 50% to more than 99%, while the relative ion concentration of Pb ion decreases from 50% to less than 1%. The Cu recovery rate is more than 75%, comparing to 54% in the EIR system.
    Separation Science and Technology 01/2067; 39(9-9):2067-2090. DOI:10.1081/SS-120035938
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    ABSTRACT: In this study, ion-exchange resins of the cation exchanger universal (KU)-2 type with functional sulfate groups, a carboxyl-containing cation exchanger of a carboxyl containing cationite (KB) type, and polyampholyte amphoteric carboxyl containing ion exchanger (ANKB)-35 were studied for Ni2+ and Cu2+ ion extraction from water solutions. The high value of the ion-exchange capacity of the ionate KU-2 compared with the complex formation amphoteric ion-exchange resin ANKB appeared to be more suitable for use in wastewater treatment. The wet KU-2-20 resin has larger static ion-exchange capacity than other gel resins. This paper presents a technological circuit and installation for local treatment of rinsing water of nickel plating with subsequent metals utilization. It was found that the gradual accumulation of nickel occurs during multiple solution circulations with a low rate.
    Separation Science and Technology 01/2031; 39(9-9):2031-2040. DOI:10.1081/SS-120039317

  • Separation Science and Technology 08/2015; DOI:10.1080/01496395.2015.1078358
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    ABSTRACT: Efficient recovery of of 1-CA from the bioreaction mixture was investigated using an ion-exchange (IEX) process. Among seven IEX resins examined, the anion resin 201×7 exhibited the highest adsorption capacity for 1-CA. The Freundlich model has the better description for 1-CA adsorption equilibrium than the Langmuir model. The adsorption kinetics showed that the pseudo-second order model was fitted very well. Dynamic adsorption and desorption experiments have been carried out in a fixed bed column to obtain optimal parameters for the recovery of 1-CA from the bioreaction mixture. Under the optimized conditions, 1-CA was recovered in yield of 91.3% with > 99% HPLC purity.
    Separation Science and Technology 08/2015; 50(17):150804134545002. DOI:10.1080/01496395.2015.1078359

  • Separation Science and Technology 08/2015; DOI:10.1080/01496395.2015.1078357

  • Separation Science and Technology 07/2015; DOI:10.1080/01496395.2015.1073309
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    ABSTRACT: Abstract (of the accepted author version posted online by N. Drouiche: 25 Jul 2015.) Many of the complex biological properties of hydroxylapatite HA are related to the multiple exchange capacities inside the HA structure, including formation of vacancies to accommodate ions with other valencies, in particular carbonate ions and alkali and other metal ions of biological importance. We have recently illustrated the possibilities of using HA to remove various textile dyes from industrial waste waters by co-precipitation with HA. Most dyes can be treated efficiently and the HA adsorbent can be regenerated for reuse following thermal treatment in air to burn of the organic materials adsorbed. However important facts point to a situation more complex than simple adsorption. To elucidate the mode of action of HA on the removal of dyes or organic matter in general, we investigated the interactions of alizarinsulfonate ARS with calcium and phosphate ions in solution as a function of pH and dye/mineral fraction. Alizarin or its salt is thus regarded as a model compound for more complex dyes, which led us to investigate the way calcium ions interact simultaneously with phosphate and ARS. We report here the observation of the formation of mixed complexes of the type phosphate-Ca-dye which demonstrate the competition for calcium ions between phosphate and organic ligands. Keywords: hydroxylapatite, alizarinsulfonate, depollution, textile dyes. For the full text, please ask the corresponding author: N. Drouiche
    Separation Science and Technology 07/2015; 50(17). DOI:10.1080/01496395.2015.1071850
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    ABSTRACT: The pervaporation properties of a methylated-silica membrane were studied on binary ethanol/water and ternary ethanol/water/methanol mixtures. The aim was to acquire a better understanding of the pervaporation mechanisms by studying the effects of feed temperature, permeate pressure, and feed composition on molecular transport. Emphasis was placed on the role of competitive adsorption and dragging and blocking effects between the components in the context of the adsorption-diffusion model. The results show the potential of the membrane for the coupled removal of water and methanol from bioethanol. This attractive application for process intensification was suggested for the first time in this paper.
    Separation Science and Technology 07/2015; 50(17):150725091307008. DOI:10.1080/01496395.2015.1071849
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    ABSTRACT: Thenoyltrifluoroacetone and Tributyl-phosphate have been used for extraction of UO22+ into Ionic Liquid 1-Butyl-3-methylimidazoliumbis(trifluoromethylsulfonyl)imide. Increasing acidity of uranyl solution from 0.01 to 3 mol L−1 HNO3 for TTA in IL, the distribution ratio (DU) and extraction efficiency (%E) both decreased. Further increment in acidity shows reversal of trend. Similar behavior is observed for TBP. With increasing concentration of TTA, %E increases stabilizing at 0.5 mol L−1 TTA. Adding methanol to TTA increased the DU due to active enolic formation. The developed kinetic model estimates the overall mass transfer coefficient (Ka) as 3.6 x 10−2 s−1. Synergistic effect has been observed for combination of TTA + TBP resulting in enhanced DU.
    Separation Science and Technology 07/2015; 50(17):150716070256003. DOI:10.1080/01496395.2015.1066389
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    ABSTRACT: To separate spiramycin from the crude sample of bitespiramycin, the optimal extraction conditions in single stage extraction had been obtained as follows: the temperature was 30-40°C, the concentration of phosphate solution was 0.3-0.4 wt.%, and the volumetric ratio of ester/aqueous was 2-3. A three-stage counter-current extraction technique had been utilized to improve extraction efficiency. The removal rate of spiramycin and the retention rate of bitespiramycin were as high as 79.14% and 92.41%, respectively. A theoretical model of three-stage counter-current extraction was introduced to calculate the results of the extraction and fitted the experimental data with satisfactory accuracy.
    Separation Science and Technology 07/2015; 50(17):150716070103003. DOI:10.1080/01496395.2015.1065889
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    ABSTRACT: A batch foam fractionation column with sieve trays was developed for enhancing the foam drainage. Effects of feeding concentration, air flow rate, number of stages, and sieve pore size on foam fractionation performances were investigated. The results indicated that the sieve trays enhanced the foam drainage effectively and improved enrichment ratio. At the liquid loading volume 490 mL, feeding concentration 0.1 g L−1, and air flow rate 300 mL min−1, the enrichment ratio reached 7.56 by using 10 stages of sieve trays with opening ratio of 38.25%, which was 1.84 times of that obtained by the control column.
    Separation Science and Technology 07/2015; 50(17):150716070258003. DOI:10.1080/01496395.2015.1066809
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    ABSTRACT: A multi-element preconcentration–separation technique for metal ions is established. The procedure is based on complex formation of metal ions with Bis(2-hydroxy-1-naphtaldimine)-N-diethylentriamine (BHNDT) on nanoporous Analcime as sorbent followed by their determination using flame atomic absorption spectrometry. The effects of analytical parameters like pH, flow rates, eluent types, and sorption capacity on the recoveries of metal ions are investigated. In order to predict the extraction ability of BHNDT for different metallic ions, DFT method is used to compute the binding energies of the cations to the title Schiff base compound. The calculated binding energies are in good agreement with the observed extraction power of the Shiff-base ligand.
    Separation Science and Technology 07/2015; 50(17):150716065310000. DOI:10.1080/01496395.2015.1068332
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    ABSTRACT: CFD simulations of single-phase flow in a pulsed sieve plate column are presented. Several options to predict axial dispersion in this computationally challenging equipment are evaluated. The evaluation involves comparison of the two possible approaches of 2D representation of the 3D geometry, comparison of a direct approach with a new approach called as the snapshot approach and comparison of predictions for the computational domain consisting of actual number of plates and the computational domain consisting of reduced number of plates. A computational approach is finally prescribed and validated for quick estimate of axial dispersion in single-phase flow.
    Separation Science and Technology 07/2015; 50(16):2485-2495. DOI:10.1080/01496395.2015.1064136
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    ABSTRACT: This study conducted counter-current solvent extraction to investigate the influence of solvent/solution volumetric ratio, solvent flow rate, and surfactant concentration on extraction efficiency. Fitting formulas for predicting the partition coefficients of the contaminant and surfactant between the aqueous and solvent phases were developed to optimize the counter-current solvent extraction. It is found that the solvent/solution volumetric ratio and the surfactant concentration had greater impact than the solvent flow rate on the extraction efficiency. The relationship between the partition coefficient K and the solvent/solution volumetric ratio or surfactant concentration was closely related to power function. Besides, the accuracy of the fitting formulas was consistent with the experimental results.
    Separation Science and Technology 07/2015; 50(16):150707114427005. DOI:10.1080/01496395.2015.1062397