Results 151 to 160 of about 46,745 (267)

Effect of Acid Leaching Pre-Treatment on Gold Extraction from Printed Circuit Boards of Spent Mobile Phones. [PDF]

Materials (Basel), 2021
Ippolito NM, Medici F, Pietrelli L, Piga L.   +3 more
europepmc   +1 more source

Leaching of Chromite in Sulfuric Acid

Journal of the Mining Institute of Japan, 1956
openaire   +2 more sources

Coordination‐Tuned Iridium Single‐Atom Nanozymes Boost Multienzyme Activity for Colorimetric Sensing

Advanced Science, EarlyView.
Breaking the coordination symmetry of Ir single‐atom sites through asymmetric Ir–N3S1 engineering tailors interfacial electron transfer, oxygen activation, and multienzyme‐like catalytic pathways. Operando spectroscopy and theoretical modeling uncover the atomic‐level origin of activity enhancement, providing a strategy for designing multifunctional ...
Tao Li, Xinyu Zhang, Jiashan Xia, Mengyu Wu, Cong Liu, Yapei Sun, Wanjiang Zhao, Min Qian, Wei Wang, Weixia Duan, Shangcheng Xu   +10 more
wiley   +1 more source

Microwave Pre-Treatment for Efficient Zinc Recovery via Acid Leaching. [PDF]

Materials (Basel)
Kenzhaliyev B, Berkinbayeva A, Smailov K, Baltabekova Z, Saulebekkyzy S, Tolegenova N, Yessengaziyev A, Bakhytuly N, Tugambay S.   +8 more
europepmc   +1 more source

Refining of Precious Metal Bearing Materials from Secondary Sources-Methanesulfonic Acid Leaching of Raw Silver Granules as a Promising Approach towards a Green Way of Silver Refining. [PDF]

Materials (Basel), 2021
Hopf J, Weigelt A, Bombach H, Stelter M, Charitos A.   +4 more
europepmc   +1 more source

Rare‐Earth–Sulfur Surface Modification Enables SiC Ceramics for Low‐Frequency Electromagnetic Wave Absorption in Extreme Environments

Advanced Science, EarlyView.
By altering surface chemical bonds to prolong relaxation time and shift absorption to lower frequencies, SiC/rare earth–sulfur (RE─S, RE = La, Ce, Pr, Sm, Gd, Er) materials achieve excellent low‐frequency electromagnetic wave absorption under extreme conditions, offering a new direction for designing high‐performance SiC‐based absorbers.
Zhanming Wu, Xiaojun Zeng, Yu‐Nan Tan, Chi Yu, Nuohua Xie, Yanfeng Gao   +5 more
wiley   +1 more source

W and Mo separation from waste W-Mo alloy by an integrated ultrasound acid leaching - alkali leaching - Solvent extraction process. [PDF]

Ultrason Sonochem
Shi C, Liu B, Xiao Z, Huang Y, Sun H, Han G.   +5 more
europepmc   +1 more source

A Molten Salt Extraction Method for Palladium Recovery via the CaPd2 Intermetallic Compound

Advanced Science, EarlyView.
A designed Ca → CaPd2 → Pd pathway enables acid–free palladium recovery in molten salt. Calcium alloying forms anionic CaPd2, which is selectively oxidized by iodine from CaI2 to yield high–purity metallic Pd. ABSTRACT To address palladium scarcity and the low efficiency of conventional recovery processes, this work presents a molten–salt extraction ...
Jiapeng Zhang, Dengjie Yan, Muwen Chen, Baoqiang Xu, Bin Yang, Bingyi Song, Lingxin Kong   +6 more
wiley   +1 more source

Activation Characteristics and Aluminum Recovery from Coal Gangue: Structure-Phase-Reactivity Relationships Revealed by Thermal Analysis, Kinetics, and Acid Leaching. [PDF]

ACS Omega
Du H, Li K, Li T, Shi X, Fang L, Cao Z.
europepmc   +1 more source

Facet‐Dependent Activity of Fe3S4 Crystal in Peroxydisulfate Activation for Organic Pollutants Degradation

Advanced Science, EarlyView.
Fe3S4 crystal with the exposed [001] facet exhibits higher catalytic activity for activating peroxydisulfate (PDS) to degrade clothianidin (CLO), which can be attributed to the dissolved Fe‐induced homogeneous catalytic process; while Fe3S4 crystal with the exposed [1‐21] facet exhibits excellent catalytic stability and durability, thereby boosting the
Jiaqu Tan, Min Yu, Jinfeng Wang, Dongya Li, Fan Yang, Yulong Zhang, Xueming Lin   +6 more
wiley   +1 more source