Results 41 to 50 of about 495 (184)

Hydrometallurgical separation of zinc and copper from waste brass ashes using solvent extraction with D2EHPA

Journal of Materials Research and Technology, 2020
A blend of brass ashes containing 48.0% of zinc and 16.6% of copper was processed through selective leaching with dilute H2SO4 and solvent extraction, using D2EHPA as the extracting agent in order to separate zinc and copper.
Júlia Mont’Alverne Martins, Alexandre Silva Guimarães, Achilles Junqueira Bourdot Dutra, Marcelo Borges Mansur   +3 more
doaj   +1 more source

Screening of parameters and optimization of nickel extraction by green emulsion liquid membrane using statistical experimental design

The Canadian Journal of Chemical Engineering, Volume 103, Issue 9, Page 4106-4124, September 2025.
Abstract This study focuses on the extraction of nickel ions from an aqueous solution using a green emulsion liquid membrane (GELM). Its primary objective is to choose between corn oil and sunflower oil as a solvent in GELM and compare their performance with a kerosene‐based emulsion liquid membrane (ELM).
Farzin Sadehlari, Guilherme Ozorio Cassol, Stevan Dubljevic   +2 more
wiley   +1 more source

FACTORIAL DESIGN OPTIMIZATION OF URANIUM (VI) CLOUD POINT EXTRACTION WITH TRITON X-100/TWEEN-40/D2EHPA/ BMIMMESO4

Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry, 2022
This work reports the Uranyl (UO22+) extraction from water by the Triton X-100 / Tween-40 / D2EHPA / BMIMMeSO4 by two aqueous phases or cloud point extraction (CPE).
NOUR EDDINE DJEBBARI, AFAF AMARA, AMEL DIDI, MOHAMED A. DIDI   +3 more
doaj  

SisClever: Pure and Concentrated Products From Multicomponent Mixtures – Applied to Urban Mining

Chemie Ingenieur Technik, Volume 97, Issue 6, Page 625-631, June 2025.
Urban mining demands efficient processes for the separation of complex mixtures. The SisClever process enables the separation of a multicomponent mixture into its individual components at in principle arbitrary purity and concentration. This is validated through experiments and demonstrated for the challenging separation of a rare‐earth mixture ...
Ezgi Uslu, Marc Philippart de Foy, Andreas Pfennig   +2 more
wiley   +1 more source

Production of high purity thorium oxide from complex ores leach liquor

Bulletin of the Mineral Research and Exploration, 2021
This paper investigates a method for separation and purification of thorium from leach liquors containing rare-earth elements (REE). Iron, which causes problems in the stage of thorium extracting, was first removed by using ...
Zümrüt Alkan, Akan Gülmez, Hasan Akçay, Çiğdem Kara, Haydar Güneş, Ayşe Erdem   +5 more
doaj   +1 more source

A Review on Leaching of Spent Lithium Battery Cathode Materials Adopting Deep Eutectic Solvents

ChemistryOpen, Volume 14, Issue 4, April 2025.
The leaching and recovery of spent lithium batteries (SLiB) using deep eutectic solvents (DESs) have received widespread attention. This review summarizes the latest advancements in the leaching of SLiB cathode materials with DESs in terms of acidity, reducibility, and coordination.
Chongyu Li, Jianjiao Jin, Zhang Yuan, Chenyun Zhang, Liangqin Wu, Chu Wang   +5 more
wiley   +1 more source

Physicochemical vs Electrochemical Technologies for Metal Recovery – Main Insights, Comparison, Complementarity and Challenges

Chemistry–Methods, Volume 5, Issue 3, March 2025.
Different electrochemical and physicochemical methods employed for metal recovery and removal from various sources are presented herein, along with their key performance indicators. The main strengths and weaknesses of each technology are discussed in a comparative manner, when possible.
Stefanos Mourdikoudis, Xochitl Dominguez‐Benetton   +1 more
wiley   +1 more source

Bulk Liquid Membrane Process for The Transport and Kinetics Study of Malachite Green From Textile Wastewater [PDF]

Iranica Journal of Energy and Environment, 2016
A bulk liquid membrane (BLM) system contained Di (2-ethyl hexyl) phosphoric acid (D2EHPA) as an extractant was used for transport of malachite green (MG) dye from textile wastewater.
M. Sathya, G. Muthuraman, S. Elumalai
doaj   +1 more source

Solvent extraction systems for selective isolation of light rare earth elements with high selectivity for Sm and La

Rare Metals, Volume 44, Issue 3, Page 2071-2084, March 2025.
Graphic Abstract AbstractThis study details a comprehensive approach focusing on the effective separation of light rare earth elements (REEs) via solvent extraction technique. A stock solution containing lanthanum, cerium, neodymium, praseodymium, and samarium was prepared by dissolving their pure mixed oxide (reclaimed from spent Ni‐MH batteries) in a
Hossein Salehi, Samane Maroufi, Rasoul Khayyam Nekouei, Veena Sahajwalla   +3 more
wiley   +1 more source

A Mature Tool to Address New Challenges: Harnessing Coordination Chemistry for The Sustainable Copper Recovery from Industrial and E‐Waste in The Age of Energy Transition

European Journal of Inorganic Chemistry, Volume 28, Issue 4, February 3, 2025.
Copper is a fundamental transition metal with wide‐ranging applications in chemistry, technology, and society. Its recovery and recycling are vital to support the increasing demands of energy transition and digitalization. In this context, coordination chemistry plays a crucial role in developing sustainable and environmentally friendly processes for ...
Pietro Ostellari, Silvia Gross
wiley   +1 more source