Solvent Extraction Behavior of Metal Ions with Calixarene Derivatives by Using a Microreactor

Abstract

In this study, the extraction behavior of calixarene derivatives by using the multiphase parallel flow technique was investigated. Using a partially-modified microfluidic device, the extraction rate of silver and palladium ions from the aqueous phase with calix[4]arene derivatives was evaluated. As a result, the time necessary for silver ion to reach equilibrium was 15 s. In the case of palladium extraction, the extraction percentage was 80 % at 8 s reaction time. In the conventional batch method, the times necessary for silver and palladium extraction to reach equilibria were about 72 h and 5 min, respectively. These results showed

Microreactor Extraction System with Macrocyclic Host Compounds for Rare Metal Recovery

“…Effects of space time on percentage extractions of silver with ketonic derivative and palladium with 2-pyridyl one in the PTPF microreactor system were reported in the previous work [12]. It was reported that the metal extraction equilibria for the ketonic and 2-pyridyl derivatives in the PTPF microreactor system reached in 16 and 6 s, respectively, whereas those in batch-wise method were 72 h and 5 min, respectively.…”

“…The fact that the interfacial area in the PTPF microreactor system was more than 100 times higher than that in batchwise method is different from the magnitude of the facilitated extraction. Although it means that another factors such as fast mass transfer based on short diffusion distance [12] may relate to improve the extraction rate, since the SF microreactor system further contributed to the extraction rate compared with the PTPF system and the interfacial area in the SF microreactor system is 30 times (roughly estimated) higher than that in the PTPF system, it was found that the interfacial area certainly contributes to the fast extraction rate.…”

“…It took, however, for over 72 h to reach equilibrium for the former derivative. And such drawback as slow extraction rate was remarkably improved by using parallel two phases flow microreactor system [12]. In the present work, the silver extraction with the tetraketonic derivative of p-t-octylcalix [4]arene in nitric acid media in two types microreactor systems has been mainly investigated to compare with the previous batch-wise extraction.…”

Separation of Pb(II) Ion with Tetraacetic Acid Derivative of Calix[4]arene by Using Droplet-based Microreactor System

“…Microreactor is a micro-scale system that employs a reaction process with small amounts of the reactants inside the microchannel having ten to hundred micrometers dimension [16]. The microreactor system has some merits, such as the large surface area per unit volume [17], short diffusion distance for the heterogeneous reaction [18], a reduced amount of reagent [19] and portable analysis [20]. Because of these, the microreactor has been widely applied in protein crystallization [21], organic synthesis [22] and solvent extraction [23].…”

Nano-Silica Modified by Hematoporphyrin for Determination Some of Traces Metals Ions (Cu(II), Zn(II) and Mn(II)) in Environmental and Pharmaceutical Formula

“…The development of the preconcentration and separation techniques is necessary [4][5][6]. The most common of preconcentration methods is solid phase extraction(SPE) have several advantages over other methods [7][8][9] such as coprecipitation [10] ion exchange [11], solvent extraction [12]. The efficiency of water treatment with removal trace metal ions from drinking, ground and wastewater carried out with selective preconcentration and separation processes [13].…”