Results 41 to 50 of about 70,169 (261)

Synergic Acid Leaching of Vanadium from Sodium Vanadium Extraction Tailings

Kuangchan zonghe liyong
The content of V2O5 in sodium vanadium extraction tailings is much higher than that in vanadium-titanium magnetite concentrate and it has high utilization value.
Fangfang LI, Jing WEN, Tangxia YU, Guangdong YANG, Hongyu SUI, Tao JIANG   +5 more
doaj   +1 more source

Continuous Leaching Test of Ion-type Rare Earth Ore at Different Depths

Kuangchan zonghe liyong, 2023
This is an essay in the field of metallurgical engineering. The ion-type rare earth ore in Ganzhou was treated as the research object. Continuous stirring leaching and column leaching were used to study the leaching of rare earth and impurity elements in
Chao Li, Rongbo Shu, Rong Cheng, Qi Zhang, Yangming Pu, Yiming Xu   +5 more
doaj   +1 more source

Self‐Sintering Ionogel Binder for Flexible, Recyclable, and Healable Printed Giant Magnetoresistive Sensors

Advanced Functional Materials, EarlyView.
ABSTRACT Electronic waste has emerged as a major environmental challenge, driven by the massive consumption and a limited lifetime of modern electronic devices, stimulating the development of sustainable electronics. Here, an all‐biomaterial gelatin‐choline‐citric acid ([Ch][CA]) ionogel is developed as an active binder to realize self‐sintered ...
Lin Guo, Xiaotao Wang, Guannan Mu, Proloy Taran Das, Igor Veremchuk, Conrad Schubert, Aaron D. Cross, Yevhen Zabila, Xuan Peng, Larysa Baraban, Denys Makarov   +10 more
wiley   +1 more source

Enhancing Copper Leaching from Refractory Copper Oxide Ore Using Organic Cationic Surfactant

Separations
The copper oxide ore in Zambia exhibits complex mineralogical characteristics, with copper primarily occurring in mica. The local hydrometallurgical plant employs heating–agitation acid leaching, which is hindered by a low leaching rate and prolonged ...
Yang Li, Jue Kou, Chunbao Sun, Peilong Wang, Xiaoli Wang   +4 more
doaj   +1 more source

Optimization of leaching conditions for extraction of magnesium from a chromite beneficiation plant tailing predominantly containing lizardite

Bulletin of the Mineral Research and Exploration, 2021
In this study, leaching experiments were performed for extraction of magnesium from a chromite beneficiation plant tailing predominantly containing lizardite.
Bahri Ersoy, Zeyni Arsoy, Ayşegül Bilen, Bekir Arslan, Hakan Çiftçi   +4 more
doaj   +1 more source

Stability Enhancement in LEACH (SE-LEACH) for Homogeneous WSN [PDF]

ICST Transactions on Scalable Information Systems, 2018
In this paper, with an objective to increase stable region of WSN, stability enhancement for LEACH (SE-LEACH) protocol is propound which is capable of balancing the load ensuring all nodes dissipate power in similar fashion. Since best candidate selection is utmost requirement to play the role of cluster head, the selection criteria considers node ...
Pawan Singh Mehra, Mohammad Najmud Doja, Bashir Alam   +2 more
openaire   +2 more sources

Toward Fast Proton Shuttling in Acidic Oxygen Evolution Reaction

Advanced Functional Materials, EarlyView.
This review establishes proton transfer dynamics as a descriptor governing acidic OER activity, moving beyond the kinetic constraints derived from the proton coupled electron transfer. We discuss how deprotonation governs classical mechanisms, including adsorbate evolution mechanism (AEM), lattice oxygen mechanism (LOM) and oxide path mechanism (OPM ...
Ashish Gaur, Jaeyeong Kim, Sungwook Mhin, HyukSu Han   +3 more
wiley   +1 more source

Support‐Controlled Reaction Pathways via Dynamic Sulfur‐Mediated Interfaces for Selective Urea Electrolysis

Advanced Functional Materials, EarlyView.
Sulfur‐doped graphitized carbon nanofibers act as adaptive catalyst–support platforms, enabling dynamic sulfur‐mediated reconstruction and strong metal–support interactions. This unique behavior enhances catalyst stability and controls reaction pathways, achieving highly selective urea oxidation (∼92% N2) coupled with efficient hydrogen evolution ...
Melanie Guillén‐Soler, Lucía Vizcaíno‐Anaya, Ahmad Tayyebi, José Manuel Vila‐Fungueiriño, María del Carmen Giménez‐López   +4 more
wiley   +1 more source

Electrolyte‐Induced Cu+ Preservation Results in a Selectivity Switch of Electrocatalytic CO2 Reduction at a Copper‐Organic Framework as Electrocatalyst

Advanced Functional Materials, EarlyView.
The active role of KCl as a neutral electrolyte enables switching the selectivity on a Cu organic framework from C1 to C2+ products during electrocatalytic CO2 reduction. ABSTRACT We introduce a copper‐nicotinate (Cu‐NA) framework as a halogenide‐stabilized Cu+/Cu0 pre‐catalyst for electrocatalytic CO2 reduction with high C2+ selectivity in a “neutral”
Anirudha Shekhawat, Muhammad Adib Abdillah Mahbub, Lejing Li, Bashir Eid, Ridha Zerdoumi, Sabine Seisel, Carla Santana Santos, Nini Zhang, Thomas Quast, Xin Wang, Wolfgang Schuhmann, Debanjan Das   +11 more
wiley   +1 more source

Bromic acid-thiourea synergistic leaching of sulfide gold ore

Green Processing and Synthesis
Bromate–thiourea coordinated leaching of gold sulfide ore for gold sulfide ore as leaching object. The effects of leaching reagent, stirring speed, and leaching time on gold leaching were investigated in this article.
Qiang Zhang, Jing-Ze Duan, Peng-Zhi Xiang   +2 more
doaj   +1 more source