Intensification of tellurium separation through the multistage bulk liquid membrane technique from nitric acid leaching liquor of Copper anode slime

2021 ◽  
Author(s):  
Niloufar Yazdani Ahmad Abadi ◽  
Mohsen Kheradmand Saadi ◽  
Amir Charkhi ◽  
Sareh Ammari Allahyari
Keyword(s):  
Nitric Acid ◽  
Liquid Membrane ◽  
Acid Leaching ◽  
Bulk Liquid ◽  
Anode Slime ◽  
Copper Anode ◽  
Bulk Liquid Membrane ◽  
Copper Anode Slime ◽  
Nitric Acid Leaching ◽  
Membrane Technique

scholarly journals Synthesis of A Novel Carrier Compound Thiazoethyl Methyl Eugenoxyacetate from Eugenol and Its Use in the Bulk Liquid Membrane Technique

2018 ◽  
Vol 18 (1) ◽  
pp. 121 ◽  
Author(s):  
Muhammad Cholid Djunaidi ◽  
Pratama Jujur Wibawa ◽  
Ratna Hari Murti
Keyword(s):  
Metal Ions ◽  
Retention Time ◽  
Liquid Membrane ◽  
Vibration Mode ◽  
Ester Group ◽  
Ftir Spectrum ◽  
Bulk Liquid ◽  
Bulk Liquid Membrane ◽  
Selective Transport ◽  
Membrane Technique

Research into the synthesis and use of a novel carrier compound, thiazoethyl methyl eugenoxyacetic acid (TMEAA) for selective transport of Cu(II), Cd(II) and Cr(III) metal ions in the bulk liquid membrane (BLM) technique was conducted. TMEAA was synthesized from eugenol. Eugenol was acidified into eugenoxyacetic acid and subsequently esterified using 4-methyl-5-thiazoethanol. Analysis of the result was performed using GC-MS and FTIR. The TMEAA obtained was liquid, viscous, blackish-brown and fragrant, with a yield of 88%. This compound was soluble in benzene and chloroform but insoluble in methanol. The GC-MS analysis result showed the presence of a single peak, with a retention time of 26.5 min and an area of 100%, while the disappearance of vibration mode at 1727 cm-1 was attributed to acid absorption and the FTIR spectrum indicated that formation of an ester group had occurred. TMEAA was used as a carrier compound in the BLM technique to transport Cu(II), Cd(II) and Cr(III), using chloroform as a solvent. The results showed that TMEAA was more selective for Cu(II) and Cd(II) than Cr(III). Moreover, the research proved that N and S groups of TMEAA were selective for Cu (II) and Cd (II).

scholarly journals Kinetika dan mekanisme sistem transpor Cd(II) antar fasa melalui teknik membran cair fasa ruah dengan oksin sebagai zat pembawa

2015 ◽  
Vol 1 (1) ◽  
pp. 97
Author(s):  
Zaharasmi Kahar ◽  
Djufri Mustafa ◽  
Wiwit
Keyword(s):  
Transport System ◽  
Liquid Membrane ◽  
Chloroform Solution ◽  
Bulk Liquid ◽  
Bulk Liquid Membrane ◽  
First Order ◽  
Mobile Carrier ◽  
Membrane Technique ◽  
Model Curve ◽  
Good Agreement

 ABSTRACT The transport and separation of Cd(II) through  bulk liquid membrane technique had been investigated and optimised. Cd(II) was transported  through a liquid membrane  of  chloroform solution containing oxine as mobile carrier and  received by EDTA in stripping phase. In compliance with optimum condition, the flux of Cd(II) crossing the membrane was studied, and applied further into a model of the transport system and kinetics mechanism. Concentration of Cd(II) in feed  and stripping phases were experimentally determined, and monitored by the atomic absorption spectrophotometer at lmaks 228.8 nm.  The model curve of time dependence of Cd(II) reduced concentrations in the feed, membrane and  stripping phases show good agreement and characterized as a transport system for Cd(II) interphase involved two consecutive irreversible first order reactions. The rate constant of transport at temperature 28°C are k1 0.0416 minutes-1, k2 0.0354  minutes-1 and  activation energy  32.96 kJ mol-1

scholarly journals ISSN : 1978-628X KINETIKA TRANSPOR FENOL DENGAN ADITIF SURFAKTAN DALAM TEKNIK MEMBRAN CAIR FASA RUAH

2012 ◽  
Vol 5 (2) ◽  
pp. 150
Author(s):  
Refinel ◽  
Djufri Mustafa Mustafa ◽  
Welly Safitri ◽  
Yulia Yesti ◽  
Rudhy Anggi
Keyword(s):  
Oleic Acid ◽  
Liquid Membrane ◽  
Sodium Dodecyl ◽  
Tween 80 ◽  
Bulk Liquid ◽  
Membrane Phase ◽  
Bulk Liquid Membrane ◽  
Membrane Technique ◽  
Source Phase ◽  
Span 60

Study of transport of phenol using the surfactant SDS (Sodium Dodecyl Sulfate), Tween-80 as additive in the source phase and oleic acid, Span-60 additive in the membrane phase with bulk liquid membrane techniques has been performed. Transportation system was in one way using solution of phenol 2.13 x 10 -4 M as the source phase, 30 mL of chloroform as membrane phase, a solution of 12 mL of 0.1 M NaOH as the receiving phase and stirring speed of 340 rpm. The concentration of phenol that transported into receiving phase and remaining in the source is determined by measuring phenol method using 4-aminoantipirin and monitored with a spectrophotometer. The result showed the percentage of transport of phenol into the receiving phase is 93.07% within 120 minutes without any additive surfactant, while for additive oleic acid and Span-60 the percentage of transport phenol is 97.28% and 88.84% within 90 minutes. Phenol transport system analyzed by means of a kinetic model involving consecutive irreversible first order reaction with the constants extraction of phenol from the source to the membrane (k1) of 0.0346 minute-1, 0.0304 min-1, and from the membrane phase into the receiving phase (k2) of 0.0264 min-1, 0.0309 min-1 each for additive oleic acid and Span-60 in the membrane phase. Surfactant SDS and Tween-80 additive in the source phase is not effective to decreased the transport time of the phenol in the phase bulk liquid membrane technique.

scholarly journals Leaching Kinetics of Selenium, Tellurium and Silver from Copper Anode Slime by Sulfuric Acid Leaching in the Presence of Manganese(IV) Oxide and Graphite

2021 ◽  
Vol 3 (1) ◽  
pp. 16
Author(s):  
Kurniawan Kurniawan ◽  
Jae-chun Lee ◽  
Jonghyun Kim ◽  
Rina Kim ◽  
Sookyung Kim
Keyword(s):  
Activation Energy ◽  
Sulfuric Acid ◽  
Chemical Reaction ◽  
Acid Leaching ◽  
Anode Slime ◽  
Surface Chemical ◽  
Copper Anode ◽  
Surface Chemical Reaction ◽  
Sulfuric Acid Leaching ◽  
Copper Anode Slime

Sulfuric acid leaching of copper anode slime (CAS) in the presence of manganese(IV) oxide (MnO2) and graphite was investigated for Se, Te and Ag recovery. The study reveals that the leaching of Se, Te and Ag was facilitated by the galvanic interaction with MnO2, and graphite played the role of a catalyst. The leaching process could yield 81.9% Se, 90.8% Te, and 80.7% Ag leaching efficiency when the conditions were maintained as 500 rpm, 2.0 M H2SO4, 0.8/0.8/1 MnO2/graphite/CAS, and 90 °C temperature. The kinetic study showed that Se leaching followed the surface chemical reaction at all the tested temperature range (25–90 °C) with the activation energy of 27.7 kJ/mol. Te and Ag leaching at temperature 25–50 °C followed the mixed and surface chemical reaction models, respectively, and changed to fit the diffusion and mixed control models, respectively, in the temperature range 60–90 °C with the corresponding activation energy of 17.8 and 12.2 kJ/mol.

scholarly journals OPTIMALISASI TRANSPORT SELEKTIF ION Ni(II) TERHADAP Cd(II) DENGAN ZAT PEMBAWA OKSIN MELALUI TEKNIK MEMBRAN CAIR FASA RUAH SECARA SIMULTAN

2015 ◽  
Vol 2 (2) ◽  
pp. 181
Author(s):  
Vera Tri Ningsih ◽  
Admin Alif ◽  
Hermansyah Aziz
Keyword(s):  
Rate Constant ◽  
Liquid Membrane ◽  
Transport Rate ◽  
Bulk Liquid ◽  
Membrane Phase ◽  
Bulk Liquid Membrane ◽  
Solution Ph ◽  
Membrane Technique ◽  
Source Phase ◽  
Phase Transport

  ABSTRACT The selective transport of Ni(II) to Cd(II) through simultaneously liquid membrane technique has been investigated. The cell membrane was made by mixturing Ni(II) and Cd(II) ions at concentration as 3.41x10-4 M and 1.78x10-4 M respectively as source phase, oxine in chloroform as membrane phase and Na2EDTA solution as receiving phase. Concentration of recidual Ni(II) and Cd(II) ions in source phase transported to receiving phase was measured by Atomic Absortion Spectrofotometry (AAS). The results showed the at optimum condition of Ni(II) and Cd(II) transport occurred at source phase of pH 7, oxine concentration 0.001 M in chloroform and 0.04 M Na2EDTA solution pH 7. In this condition, Ni(II) and Cd(II) transport selectivity was found 80.89%. From the experiment, it was found that the transport rate constant from source phase to membrane phase (k1) for Ni(II) (0.7544 per hour) smaller than Cd(II) (1.3800 per hour ), on the other hand the transport rate constant from membrane phase to receiving phase (k2) Ni(II) (2.7580 per hour) greater than Cd(II) (1.3790 per hour). The phase-to-phase transport of Ni(II) and Cd(II) was consecutive first order reaction.  Keywords : bulk liquid membrane, oxine, technique    

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