Results 71 to 80 of about 1,377 (224)

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

Solvent extraction and separation of titanium and iron by a variety of extractants from HCl solutions media of different concentration

工程科学与技术, 2011
:Solvent extraction and separation of titanium and iron by a variety of extractants including of D2EHPA、TOPO、TBP、TOA and N1923 from HCl solutions of different concentration was investigated on the basic of the Altair hydrochloride TiO2 pigment process ...
Mao Xue-Hua, LIU Dai-Jiun, ZHANG Peng
doaj  

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

Synergistic Extraction of Samarium(III) from Water via Emulsion Liquid Membrane Using a Low-Concentration D2EHPA–TOPO System: Operational Parameters and Salt Effects

Separations
The synergistic effect of using D2EHPA and TOPO together to enhance the extraction of samarium(III) from aqueous media via emulsion liquid membrane (ELM) technology was explored.
Ahlem Taamallah, Oualid Hamdaoui
doaj   +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

Ekstraksi Y, Dy, Gd Dari Konsentrat Itrium Dengan Solven Tbp, D2ehpa [PDF]

, 2017
EKSTRAKSI Y, Dy, Gd DARI KONSENTRAT ITRIUM DENGAN SOLVEN TBP DAN D2EHPA. Telah dilakukan pemisahan Y, Dy, dan Gd dari konsentrat itrium hasil olah pasir senotim dengan cara ekstrasi cair - cair.
Sukmajaya, Sri, Handini, T. (Tri), Sukmajaya, S. (Sri), EHB, Bambang, Bambang EHB, Sri Sukmajaya, Tri Handini, EHB, B. (Bambang), Handini, Tri   +8 more
core   +1 more source

Carbon Dioxide as a Sustainable Reagent in Circular Hydrometallurgy

ChemSusChem, Volume 18, Issue 3, February 1, 2025.
Carbon dioxide is a useful reagent in hydrometallurgy and it can help to transform linear hydrometallurgical flowsheets into circular ones. Examples of applications of CO2 are pH control, the regeneration of acids used as lixiviants, or as a reagent for precipitation of metal carbonates. A new development is the solvent‐extraction‐assisted formation of
Rodolfo Marin Rivera, Koen Binnemans
wiley   +1 more source

SEPARATION OF NICKEL AND ZINC IONS IN A SYNTHETIC ACIDIC SOLUTION BY SOLVENT EXTRACTION USING D2EHPA AND CYANEX 272 [PDF]

, 2012
: Solvent extraction was used to recover nickel and zinc from synthetic acidic solution. Many leaching solution and waste waters contain both zinc and nickel at the same time.
Irannajad, M., Amir Reza Azadmehr, Mehdi Irannajad, Azadmehr, A. R., Mahdi Gharabaghi, Gharabaghi, M.   +5 more
core  

PEMISAHAN ZIRKONIUM (Zr) DAN HAFNIUM (Hf) MEMAKAI CAMPURAN SOLVEN TBP-D2EHPA DAN AMBERLITE XAD-16 [PDF]

, 2017
PEMISAHAN ZIRKONIUM (Zr) DAN HAFNIUM (Hf) MEMAKAI CAMPURAN SOLVEN TBP-D2EHPA DAN AMBERLITE XAD-16. Penelitian ini bertujuan untuk mengetahui komposisi (perbandingan ekstraktan dan resin) SIR yang efektif untuk pemisahan Zr dan Hf, mengetahui model ...
Dwi Biyantoro, I Made Sukarna, Agus Suyanto, Agus Suyanto, Dwi Biyantoro, I Made Sukarna,   +1 more
core   +2 more sources

Latest Advances in Hydrometallurgical Recycling Routes for Primary Alkaline Batteries: A Review

International Journal of Energy Research, Volume 2025, Issue 1, 2025.
This review presents the advances regarding the recovery and purification of zinc (Zn) and manganese (Mn) from alkaline batteries via hydrometallurgical processes. The characteristics of alkaline batteries are defined, and a comparison among leaching processes of spent batteries is presented, including the reactions that take place during the leaching ...
Noelia Muñoz García, Beatriz Delgado Cano, José Luis Valverde, Michèle Heitz, Antonio Avalos Ramírez, Ahmad Azmin Mohamad   +5 more
wiley   +1 more source