Results 21 to 30 of about 46,436 (267)
Kinetics of nitric acid leaching of bornite and chalcopyrite
Chimica Techno Acta, 2023 The paper presents a study of the process of nitric acid dissolution of the natural minerals chalcopyrite and bornite. The influence of various parameters, including temperature, nitric acid concentration and particle sizes, on this process was examined.
Yuri Shklyaev +4 more
openaire +3 more sources
Synergic Acid Leaching of Vanadium from Sodium Vanadium Extraction Tailings
Kuangchan zonghe liyongThe 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 +5 more
doaj +1 more source
Study on Influencing Factors of Leaching Process of High-iron Zinc Calcine
Kuangchan zonghe liyong, 2023 Zinc calcine with high Fe content is leached with a large amount of Fe at the same time, which affects the subsequent operation. In order to solve this problem, the high iron zinc calcine of a company in Shaanxi was taken as the research object.
Zhiyu Wang, Jialin Guo, Yue He
doaj +1 more source
Leaching Remediation of Dredged Marine Sediments Contaminated with Heavy Metals
Journal of Marine Science and Engineering, 2022 There are more than 150 ports in China and a considerable proportion of dredged sediments in ports and waterways are contaminated with heavy metals as the typical contaminants.
Zhaowei Wang +3 more
doaj +1 more source
Iron Control in Atmospheric Acid Laterite Leaching [PDF]
Minerals, 2019 Iron control in the atmospheric acid leaching (AL) of nickel laterite was evaluated in this study. The aim was to decrease acid consumption and iron dissolution by iron precipitation during nickel leaching. The combined acid leaching and iron precipitation process involves direct acid leaching of the limonite type of laterite followed by a simultaneous
Mäkinen, Jarno +5 more
openaire +3 more sources
Metals, 2019 Commercial production of titanium involves chlorination using chlorine gas that can be converted to hydrochloric acid by atmospheric moisture and is hazardous to human health.
Sang Hoon Choi +6 more
doaj +1 more source
Cobalt recovery from spent Li-ion batteries using lactic acid as dissolution agent
Cleaner Engineering and Technology, 2021 The effective recovery of cobalt from spent cathode materials is a critical issue and becomes a necessary assignment for the waste treatment of spent lithium-ion batteries (LIBs) in concern with waste to wealth.
G. Santhosh, G.P. Nayaka
doaj +1 more source
Advanced Engineering Materials, EarlyView.Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley +1 more source
Hydrothermal Leaching Kinetics of Vanadium from an Iron Vanadate Mineral Using Oxalic Acid
Metals, 2023 Hydrothermal leaching vanadium using oxalic acid is a novel method reported recently to overcome the serious environmental problems caused by traditional extracting processes.
Biao Shen, Xuexin Chen, Baijun Yan
doaj +1 more source
Advanced Engineering Materials, EarlyView.This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele +2 more
wiley +1 more source