Prediction of Kraft Lignin Extraction Performance Using Emulsion Liquid Membrane Carrier-Diffusion Model

2014 ◽  
Vol 67 (2) ◽  
Author(s):  
Chan Nyuk Yan ◽  
Norasikin Othman ◽  
Ooi Zing Yi

This study presents the model to predict the performance of emulsion liquid membrane (ELM) to extract kraft lignin. Kraft lignin is one of the raw material that can be convert into biodiesel and also applied in producing large amount of chemical product such as vanillin. ELM is a separation method which can separate component without mechanical support. In this study, ELM model was developed and solved using MATLAB software. Three parameters were investigated in this study such as treat ratio, carrier concentration and initial concentration of feed phase. The study shows that ELM performs best at treat ratio of 1:5, concentration carrier of 0.3M and 0.5g/L of initial concentration of feed phase.

2012 ◽  
Vol 496 ◽  
pp. 411-414 ◽  
Author(s):  
Du Shu Huang ◽  
Jin Gang Yu ◽  
Wei Liu ◽  
Zhao Long Huang ◽  
Na Wu

Supported emulsion liquid membrane using copper(Ⅱ) N-dodecyl-(L)- hydroxyproline as a chiral carrier was used as a novel technique to extract L-theanine. The effects of initial concentration of L-theanine in the feed phase, chiral carrier concentration in the membrane phase and salt concentration in receiving phase on extraction performance were studied and some optimum conditions were achieved.


Membranes ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 133 ◽  
Author(s):  
Abdul Latif Ahmad ◽  
Zulfida Mohamad Hafis Mohd Shafie ◽  
Nur Dina Zaulkiflee ◽  
Wen Yu Pang

The aim of this study is to develop an Emulsion Liquid Membrane (ELM) system for the extraction of acetaminophen (ACTP). Firstly, ELM was formulated by the screening of liquid membrane components where the compatibility of diluent with other membrane phase components was investigated. The chosen carrier, diluent and stripping solution must comply with the reaction at the interface of the membrane to support the simultaneous processes of extraction and stripping. Therefore, parameters such as stripping agent concentration, volume ratio, initial concentration of feed phase and HCl concentration were investigated. A stable emulsion and maximum acetaminophen removal efficiency of 85% was achieved.


2021 ◽  
Vol 17 (1) ◽  
pp. 1
Author(s):  
Handias Meilinda ◽  
Novi Noviyanti ◽  
Anni Anggraeni ◽  
Diana Hendrati ◽  
Husein H Bahti

<p>Unsur Tanah Jarang (UTJ) adalah 15 elemen kelompok lantanida, ditambah skandium dan itrium yang termasuk kelompok aktinida. UTJ memiliki banyak manfaat di berbagai bidang. Sifat fisik dan kimia yang mirip antar UTJ membuatnya sulit dipisahkan sehingga pemisahan UTJ menarik dipelajari dengan berbagai macam metode, salah satunya adalah dengan menggunakan <em>Emulsion Liquid Membrane </em>(ELM). ELM merupakan metode pemisahan yang dikembangkan dari ekstraksi pelarut terdiri dari tiga fase, yaitu fase eksternal (fase umpan) yang berisi UTJ yang akan dipisahkan, fase internal (fase pengupasan), dan fase membran. Fase membran berisi surfaktan sebagai penstabil dan ligan yang akan membentuk kompleks dengan UTJ pada antarmuka fase umpan dan membawanya berdifusi ke dalam fase pengupasan. ELM merupakan metode efektif untuk pemisahan karena tahap ekstraksi dan pengupasan (<em>stripping</em>) terjadi secara bersamaan dalam satu tahap dan fase membrannya dapat digunakan kembali. Pemisahan UTJ menggunakan metode ELM dengan berbagai ligan, seperti D2EHPA, Cyanex 572, P204, dan (RO)2P(O)OPh-COOH dipengaruhi oleh berbagai parameter, seperti konsentrasi ligan, pH fase umpan, waktu pengadukan ekstraksi, kecepatan pengadukan ekstraksi, rasio fase umpan, konsentrasi fase pengupasan, konsentrasi surfaktan, dan konsentrasi fase umpan. Parameter tersebut diseleksi untuk mendapatkan kondisi optimum sehingga meningkatkan efisiensi ekstraksi dan pengupasan yang berbeda.</p><p><strong>Effect of Various Parameters in Separation of Rare Earth Elements using the Emulsion Liquid Membrane (ELM) Method. </strong>Rare Earth Elements (REEs) are 15 elements of the lanthanide group, plus scandium and yttrium, which belong to the actinide group. REEs have many benefits in various fields. Similar physical and chemical properties between REEs make it difficult to separate, thus REEs separation is interesting to study by various methods, one of which is by using an emulsion liquid membrane (ELM). ELM is a method developed from solvent extraction consisting of three phases: the external phase (feed phase) which contains REEs to be collected, the internal phase (stripping phase), and the membrane phase. The membrane phase contains surfactants as stabilizers and ligands which will form complexes with REEs in the feed phase and are designed to diffuse into the stripping phase. ELM is an effective method to involve because extraction and stripping occur together in one glass and the membrane phase can be reused. Separation of REEs using the ELM method with various ligands, such as D2EHPA, Cyanex 572, P204, and (RO)2P(O)OPh-COOH influenced by various parameters, such as ligand concentration, feed phase pH, extraction stirring time, extraction stirring speed, feed phase ratio, stripping phase concentration, surfactant concentration, and feed phase concentration. These parameters are selected to obtain optimum conditions thereby increasing the efficiency of different extraction and stripping.</p><p> </p>


2017 ◽  
Vol 5 (4) ◽  
pp. 172 ◽  
Author(s):  
Dwi Ardi Irawati ◽  
Baharuddin Hamzah ◽  
Nurdin Rahman

This study aimed to determine effect of Cu(II) ion toward percent extraction of Pb(II) ion using emulsion liquid membrane technique. Variation concentrations of Cu(II) added were 0, 50, 100, 150, 200 and 250 ppm with the initial concentration of Pb(II) was 245 ppm. This extraction used benzoyl acetone as a chelating agent. The extraction results were measured by Spectrodirect. The results showed that percent extraction of Pb(II) ion prior addition of Cu(II) ion was 99.09%, but after addition of Cu(II) to a concentration up to 250 ppm, the percent extraction of Pb(II) ions turned to decrease by 97.92%.


2015 ◽  
Vol 31 (5) ◽  
pp. 1305-1314 ◽  
Author(s):  
Zing-Yi Ooi ◽  
Norlisa Harruddin ◽  
Norasikin Othman

2017 ◽  
Vol 88 ◽  
pp. 106-115 ◽  
Author(s):  
Saliha Bouranene ◽  
Adel Soualmia ◽  
Patrick Fievet ◽  
Sébastien Déon ◽  
Fadhel Ismail

2012 ◽  
Vol 549 ◽  
pp. 795-799
Author(s):  
Xiao Ning Wu ◽  
Bing Hua Yao

The transportation and separation of Cu(Ⅱ) through a dispersion supported liquid membrane(DSLM) consisting of 2-ethylhexyl Phosphonic Mono-(2-Ethylhexyl) in kerosene, supported on the polyvinylidene fluoride membrane(PVDF), is studied. The effects of pH value in the feed phase, volume ratio of liquid membrane phase and hydrochloric acid, concentrations of HCl in the strip phase and initial concentration of Cu(Ⅱ) in the feed phase are also researched. The results show that copper ion can be transported effectively when pH =5.25 in the feed phase, the volume ratio is160:40, concentrations of HCl in the strip phase is 4.0mol/L. Under the optimum transport conditions, when initial concentration of Cu(Ⅱ) was 2.00×10-4mol/L, the transport rate of Cu(Ⅱ)was up to 94.7% in 130 min.


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