Ionic liquids for metal extraction from chalcopyrite: solid, liquid and gas phase studies

2017 ◽  
Vol 19 (32) ◽  
pp. 21556-21564 ◽  
Author(s):  
O. Kuzmina ◽  
E. Symianakis ◽  
D. Godfrey ◽  
T. Albrecht ◽  
T. Welton
Keyword(s):  
Ionic Liquids ◽  
Gas Phase ◽  
Extraction Efficiency ◽  
Metal Extraction ◽  
Passivation Layers ◽  
Oxidative Leaching ◽  
Solid Liquid

Non-oxidative leaching in ionic liquids revealed novel dependencies between the evolution of gas species, passivation layers and metal extraction efficiency.

scholarly journals Solid-Liquid Separation Properties of Thermoregulated Dicationic Ionic Liquid as Extractant of Dyes from Aqueous Solution

2018 ◽  
Vol 2018 ◽  
pp. 1-5 ◽  
Author(s):  
Rui Lv ◽  
Shuya Cui ◽  
Yangmei Zou ◽  
Li Zheng
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Extraction Efficiency ◽  
Dicationic Ionic Liquid ◽  
Dicationic Ionic Liquids ◽  
The Common ◽  
Extraction Parameters ◽  
Malachite Green Oxalate ◽  
Solid Liquid ◽  
Solid Liquid Separation

Two thermoregulated dicationic ionic liquids were synthesized and applied for effective extraction of the common dye malachite green oxalate (MG). The extraction parameters such as amount of ionic liquids, pH of water phase, extraction time, cooling time, and centrifugal time on the extraction efficiency were investigated systematically. It revealed that the dye has been successfully extracted into the ionic liquids, with high extraction efficiency higher than 98%, and recovery of 98.2%–100.8%, respectively. Furthermore, these ionic liquids can be recycled easily after elution. The reusable yields were 87.1% and 88.7%. The extraction of the dye into the thermoregulated ionic liquid provides a method of minimizing pollution of waste water potentially.

scholarly journals Application of a cashew-based oxime in extracting Ni, Mn and Co from aqueous solution

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Chi M. Phan ◽  
Son A. Hoang ◽  
Son H. Vu ◽  
Hoang M. Nguyen ◽  
Cuong V. Nguyen ◽  
...  
Keyword(s):  
Organic Phase ◽  
Extraction Efficiency ◽  
Acidic Solution ◽  
Lithium Ion ◽  
Metal Extraction ◽  
Economic Potential ◽  
Cashew Nut ◽  
Valuable Metals ◽  
Loaded Organic Phase ◽  
Cashew Nut Shell

Abstract Background Cashew nut shell is a by-product of cashew (Anacardium occidentale) production, which is abundant in many developing countries. Cashew nut shell liquor (CNSL) contains a functional chemical, cardanol, which can be converted into a hydroxyoxime. The hydroxyoximes are expensive reagents for metal extraction. Methods CNSL-based oxime was synthesized and used to extract Ni, Co, and Mn from aqueous solutions. The extraction potential was compared against a commercial extractant (LIX 860N). Results All metals were successfully extracted with pH0.5 between 4 and 6. The loaded organic phase was subsequently stripped with an acidic solution. The extraction efficiency and pH0.5 of the CNSL-based extractant were similar to a commercial phenol-oxime extractant. The metals were stripped from the loaded organic phase with a recovery rate of 95% at a pH of 1. Conclusions Cashew-based cardanol can be used to economically produce an oxime in a simple process. The naturally-based oxime has the economic potential to sustainably recover valuable metals from spent lithium-ion batteries. Graphic abstract

Intensification of solid–liquid separation by thermal sedimentation in pressure oxidative leaching process of chromite

2021 ◽  
Vol 164 ◽  
pp. 106825
Author(s):  
Xiaoyu Tang ◽  
Shihao He ◽  
Facheng Qiu ◽  
Xianfeng Qin ◽  
Xuejun Quan ◽  
...  
Keyword(s):  
Liquid Separation ◽  
Leaching Process ◽  
Oxidative Leaching ◽  
Solid Liquid ◽  
Solid Liquid Separation

scholarly journals Kinetics of metal extraction in ionic liquids: Eu3+/HNO3//TODGA/[C1C4im][Tf2N] as a case study

RSC Advances ◽  
2013 ◽  
Vol 3 (27) ◽  
pp. 10736 ◽  
Author(s):  
Michal Sypula ◽  
Ali Ouadi ◽  
Clotilde Gaillard ◽  
Isabelle Billard
Keyword(s):  
Ionic Liquids ◽  
Metal Extraction ◽  
Kinetics Of

scholarly journals Characterization and Functionality of Immidazolium Ionic Liquids Modified Magnetic Nanoparticles

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Ying Li ◽  
Ning Tang ◽  
Fuyuhiko Inagaki ◽  
Chisato Mukai ◽  
Kazuichi Hayakawa
Keyword(s):  
Ionic Liquids ◽  
Magnetic Nanoparticles ◽  
Extraction Efficiency ◽  
Alkyl Chain ◽  
Organic Pollutant ◽  
High Adsorption ◽  
Transmission Electron ◽  
Polycyclic Aromatic ◽  
One Step ◽  
Modified Magnetic Nanoparticles

1,3-Dialkylimidazolium-based ionic liquids were chemically synthesized and bonded on the surface of magnetic nanoparticles (MNPs) with easy one-step reaction. The obtained six kinds of ionic liquid modified MNPs were characterized with transmission electron microscopy, thermogravimetric analysis, magnetization, and FTIR, which owned the high adsorption capacity due to the nanometer size and high-density modification with ionic liquids. Functionality of MNPs with ionic liquids greatly influenced the solubility of the MNPs with organic solvents depending on the alkyl chain length and the anions of the ionic liquids. Moreover, the obtained MNPs showed the specific extraction efficiency to organic pollutant, polycyclic aromatic hydrocarbons, while superparamagnetic property of the MNPs facilitated the convenient separation of MNPs from the bulks water samples.

scholarly journals Kerr-AdS analogue of triple point and solid/liquid/gas phase transition

2014 ◽  
Vol 31 (4) ◽  
pp. 042001 ◽  
Author(s):  
Natacha Altamirano ◽  
David Kubizňák ◽  
Robert B Mann ◽  
Zeinab Sherkatghanad
Keyword(s):  
Phase Transition ◽  
Gas Phase ◽  
Triple Point ◽  
Solid Liquid

Bridging the Gap between Ionic Liquids and Molten Salts: Group 1 Metal Salts of the Bistriflamide Anion in the Gas Phase

2009 ◽  
Vol 113 (11) ◽  
pp. 3491-3498 ◽  
Author(s):  
João P. Leal ◽  
Manuel E. Minas da Piedade ◽  
José N. Canongia Lopes ◽  
Alina A. Tomaszowska ◽  
José M. S. S. Esperança ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Gas Phase ◽  
Molten Salts ◽  
Metal Salts ◽  
Group 1
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