Results 51 to 60 of about 1,377 (224)

Strontium removal from acidic solutions by D2EHPA impregnated amberlite XAD-2 resin [PDF]

open access: yes, 2015
Çalışmada, D2EHPA impregne edilmiş Amberlit XAD-2 reçinesi kullanılarak stronsiyumun sulu çözeltilerden uzaklaştırılma koşulları incelenmiştir. Amberlite XAD-2 reçinesi üzerine D2EHPA ilave edilerek kuru impregnasyon yöntemi ile reçine hazırlanmıştır ...
Bozan, Burcu
core  

Metal Sorption Characteristics of a Macromolecular Resin Containing D2EHPA.

open access: yesJOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 1994
In previous works, we studied the divalent metal sorption characteristics of di-(2-ethylhexyl) phosphoric acid (D2EHPA)-ImSorb in batch and column operation modes. The study was made to elucidate whether the sorption behavior varies with the two different methods for preparation of extractant containing resins or not, using both Levextrel resin and ...
Akita, Shigendo   +2 more
openaire   +2 more sources

A Comprehensive Review of Adsorbents for Rare Earth Separation: Design, Synthesis, Adsorption Performance, and Mechanisms

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT Rare earth elements (REEs) play an irreplaceable role in modern technology and industry. However, due to the highly similar physicochemical properties among REEs, their separation remains a significant challenge. Additionally, REEs often exist in low‐concentration solutions, making efficient REE recovery an urgent task.
Miao‐Miao Huang   +6 more
wiley   +1 more source

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

open access: yesJournal 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   +3 more
doaj   +1 more source

Solvent Extraction of Metals in the Circular Economy: Enhancing Resource Efficiency and Sustainability

open access: yesThe Scientific World Journal, Volume 2026, Issue 1, 2026.
The integration of solvent extraction techniques into the circular economy framework offers a sustainable approach to addressing resource efficiency and metal recovery challenges. This review explores the role of solvent extraction in minimizing environmental impacts while maximizing the recovery of critical metals from waste streams, including ...
Anup Basnet Chetry, Claudio Cameselle
wiley   +1 more source

Extractant dissolution in liquid-liquid extraction process [PDF]

open access: yes, 2010
碩士液-液萃取程序廣泛使用於工業上回收重金屬,但在某些條件下,萃取劑會脫離有機溶劑進入水中,形成所謂的「溶出」現象。萃取劑溶出雖不一定會降低重金屬去除率,但會大量增加水中之有機物,造成水質汙染。未來若將萃取程序應用至環工之廢水處理,萃取劑溶出之避免勢必為重要的議題。 影響溶出之因素包括pH值、溶劑量及萃取劑本身特性等。本研究以D2EHPA、TBP及Aliquat336等三種常見之萃取劑進行溶出試驗,探討在不同pH值時之溶出趨勢。重金屬萃取實驗以D2EHPA為主,主要針對銀、鎘及鋅三種不同重金屬進行實驗。
李穎昇; Li, Ying-sheng
core  

Solvent extraction modeling of Ce/Eu/Y from chloride media using D2EHPA [PDF]

open access: yes, 2019
End-of-life fluorescent lamps are becoming essential in the rare earths (REEs) field and suppose a feasible secondary source for getting them, reducing thus their supply risk.
Fortuny Sanromá, Agustín   +7 more
core   +1 more source

Study of Manganese and Phosphoric Acid on Dimensionally Stable Anodes During Zinc Electrowinning

open access: yesMaterials and Corrosion, Volume 76, Issue 11, Page 1697-1708, November 2025.
Study on the effect of dimensionally stable anodes replace of Pb–Ag alloy anode during zinc deposition. Adding phosphoric acid to the electrolyte to complex the manganic Mn3+ ion. Phosphoric acid leads to improve the performance of dimensionally stable anodes during zinc electrolysis.
Fusheng Liu   +5 more
wiley   +1 more source

Selective and Synergistic Extraction of Nickel from Simulated Cr-Ni Electroplating Bath Solutions using LIX 63 and D2EHPA as Carriers [PDF]

open access: yes, 2014
The main goal of the present study is to explain synergistic extraction of nickel from simulated Cr-Ni electroplating bath solutions (SEBS) using 5,8-diethyl-7-hydroxydodecane-6-one oxime (LIX 63) and di-(2-ethylhexyl) phosphoric acid (D2EHPA) as ...
Kumbasar, Recep Ali, Eyüpoğlu, Volkan
core   +1 more source

Estudio de la extracción de tierras raras ligeras a partir de la extracción líquido – líquido utilizando ácidos organofosforados y ácido ascórbico

open access: yesRevista de Metalurgia, 2019
La extracción líquido – líquido (ELL) o extracción por Solvente (SX) es la técnica más utilizada, actualmente, para promover la separación de los Elementos Tierras Raras (ETRs), siendo los agentes de extracción ácidos organofosforados los más empleados ...
Gabriel Santos, Ysrael M. Vera
doaj   +1 more source

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