Ionic Liquid–Liquid Extraction and Supported Liquid Membrane Analysis of Lipophilic Wood Extractives from Dissolving-Grade Pulp

Kilulya, Kessy F.; Msagati, Titus A.M.; Mamba, Bhekie B.; Ngila, J. Catherine; Bush, Tamara Reid

doi:10.1007/s10337-012-2225-5

Cited by 5 publications

(3 citation statements)

References 32 publications

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“…They compared the extraction performance using tri-n-butyl phosphate (TBP), TOA, and tri-n-octyl phosphine (TOPO) as extractants and concluded that almost 99% of the carboxylic acids can be extracted using 1% TOPO as an extractant; this proposes a generalized methodology for the HFSLM extraction of carboxylic acids. Kessy et al [60] demonstrated the technical feasibility of the isolation of lipophilic extractives from the sulfite pulping process after the oxygen bleaching stage by performing a liquid-liquid extraction followed by a HFSLM. Liquid-liquid extraction was carried out using hexane and hexane-ethyl acetate as solvent.…”

Section: Selectivitymentioning

confidence: 99%

Membrane Operations in the Pulp and Paper Industry for the Recovery of Constituents: A State of the Art Review

Benavidez¹,

Demmelmayer²,

Kienberger³

2023

Preprint

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The pulp and paper industry is one of the biggest industry sectors worldwide, whose market growth is expected to reach 370.12 billion USD by 2028. However, as a water-intensive process, the pulp and paper production generate huge volumes of contaminated effluents, some of which contain dissolved high-value chemical compounds, such as lignin, hemicellulose, or carboxylic acids. These compounds can be recovered using membrane operations. Thus, membrane operations represent a method to valorize effluents and byproducts from this industry sector and narrow the gap between biorefinery models and the pulp and paper production as an integrated biorefinery. The present review reviews the state-of-the-art-research and the state-of-the-art applications of membrane operations in the pulp and paper industry.

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Section: Selectivitymentioning

confidence: 99%

Membrane Operations in the Pulp and Paper Industry for the Recovery of Constituents: A State of the Art Review

Benavidez¹,

Demmelmayer²,

Kienberger³

2023

Preprint

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“…The use of ionic liquid can significantly reduce the pollution of the environment not only due to its properties [4,[17][18][19] but also its miscibility with water, a property which makes it reduce [19]. Due to the ability of ionic liquids in dissolving biomass, the extraction of lipophilic extractives becomes more efficient due to the fact that lipophilic extractives are released into the solution in which cellulose is regenerated by the addition of precipitation solvent such as water.…”

Section: Identification and Quantification Of Lipophilic Extractivesmentioning

confidence: 99%

Imidazolium-Based Ionic Liquids as Solvents for Analysis of Lipophilic Extractives from Biomass

Kilulya¹,

Mamba²,

Msagati³

2015

Ionic Liquids - Current State of the Art

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“…Although scientific information about the use of membranes and ILs for lignocellulosic biomass fractionation and further processing is abundant, the integration of both tools as SILMs has not been deeply investigated. SILMs have been successfully applied for extraction of minor components that appear during vegetal biomass fractionation (for example, lipophilic compounds linked to resin, such as fatty acids or sterols) for analytical purposes [55]. The potential of these systems for extraction and purification of lignin must be studied, since SILMs can be preferred over other technologies for extraction and purification of lignin.…”

Section: Introductionmentioning

confidence: 99%

Supported Ionic Liquid Membranes for Separation of Lignin Aqueous Solutions

et al. 2018

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Lignin valorization is a key aspect to design sustainable management systems for lignocellulosic biomass. The successful implementation of bio-refineries requires high value added applications for the chemicals derived from lignin. Without effective separation processes, the achievement of this purpose is difficult. Supported ionic liquid membranes can play a relevant role in the separation and purification of lignocellulosic components. This work investigated different supported ionic liquid membranes for selective transport of two different types of technical lignins (Kraft lignin and lignosulphonate) and monosaccharides (xylose and glucose) in aqueous solution. Although five different membrane supports and nine ionic liquids were tested, only the system composed by [BMIM][DBP] as an ionic liquid and polytetrafluoroethylene (PTFE) as a membrane support allowed the selective transport of the tested solutes. The results obtained with this selective membrane demonstrated that lignins were more slowly transferred from the feed compartment to the stripping compartment through the membrane than the monosaccharides. A model was proposed to calculate the effective mass transfer constants of the solutes through the membrane (values in the range 0.5–2.0 × 10−3 m/h). Nevertheless, the stability of this identified selective membrane and its potential to be implemented in effective separation processes must be further analyzed.

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Ionic Liquid–Liquid Extraction and Supported Liquid Membrane Analysis of Lipophilic Wood Extractives from Dissolving-Grade Pulp

Cited by 5 publications

References 32 publications

Membrane Operations in the Pulp and Paper Industry for the Recovery of Constituents: A State of the Art Review

Membrane Operations in the Pulp and Paper Industry for the Recovery of Constituents: A State of the Art Review

Imidazolium-Based Ionic Liquids as Solvents for Analysis of Lipophilic Extractives from Biomass

Supported Ionic Liquid Membranes for Separation of Lignin Aqueous Solutions

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