Results 41 to 50 of about 540,025 (266)

Germanium recovery from zinc calcines using a hydrometallurgical procedure

Revista de Metalurgia
In the final stage of zinc calcines processing, zinc is recovered by zinc electrowinning. However, the presence of germanium in the electrolyte seriously affects the current density in the electrowinning step. Since germanium is a critical and strategic
Francisco José Alguacil , Manuel Alonso, Luis J. Lozano-Blanco, José Ignacio Robla   +3 more
doaj   +1 more source

Hydrometallurgical Process for Zinc Recovery from C.Z.O. Generated by the Steelmaking Industry with Ammonia–Ammonium Chloride Solution

Metals, 2019
In this research, some experimental steps were investigated to recover zinc contained in crude zinc oxide (C.Z.O.). In the first stage, the C.Z.O. was treated in NH3–NH4Cl–H2O solution to dissolve the metals.
Shenghai Yang, Duoqiang Zhao, Yafei Jie, Chaobo Tang, Jing He, Yongming Chen   +5 more
doaj   +1 more source

Experimental Study on the Dissolution Behavior of Calcium Fluoride

Metals, 2020
The presence of halogens has an adverse effect on the zinc extraction process through electrowinning, the last phase of the RLE (Roasting, Leaching and Electrowinning) zinc extraction route.
Suchandra Sar, Caisa Samuelsson, Fredrik Engström, Lena Sundqvist Ökvist   +3 more
doaj   +1 more source

État du développement technologique en matière d'enlèvement des métaux des effluents industriels [PDF]

, 1999
Cette étude trace un profil des diverses technologies utilisées et en développement pour la séparation et/ou la récupération des métaux dans les effluents industriels.
Blais, J. F., Dufresne, S., Mercier, G.
core   +1 more source

Effects of Polymer Additives on Zinc Electrowinning.

Shigen-to-Sozai, 1999
Zn electrodeposition behavior and the morphology of deposited Zn were studied in the electrowinning solution containing polymer additives such as gelatin and polyethylene glycol (PEG). The molecular weight of gelatin and PEG were determined by gel permeation chromatography. During Zn deposition, the cathode potential was shifted to less noble direction
Takeshi OHGAI, Hisaaki FUKUSHIMA, Tetsuya AKIYAMA, Nobuo BABA   +3 more
openaire   +2 more sources

Microwave‐Assisted Technologies in Gold Extraction: A Review

Engineering Reports, Volume 8, Issue 1, January 2026.
This review highlights how microwave‐assisted technologies enhance gold extraction by improving ore pretreatment, leaching, and recovery from waste materials. Key findings show increased recovery rates, reduced energy use, and potential for greener, more efficient gold processing.
B. Shahbazi
wiley   +1 more source

Electrochemical copper recovery from galvanic sludge [PDF]

, 2016
The feasibility of recovering copper from electronic industrial waste mud (galvanic sludge) using a combination of leaching and electrowinning has been examined.
Dang, T.D., Green, T.A., Huyen, Nguyen T.T., Huyen, Pham T., Roy, S., Tung, Mai T.   +5 more
core   +1 more source

Deposition and removal of manganese oxide in zinc electrowinning

Electrochimica Acta
Siri Marie Skaftun, Svein Sunde, Geir Martin Haarberg, Frode Seland   +3 more
openaire   +2 more sources

Advanced Materials in Responsible Electronics: Innovations for Sustainability, Health, and Circularity

Advanced Materials Technologies, Volume 10, Issue 23, December 3, 2025.
Contemporary electronic devices produce significant waste, harming ecosystems. Innovation in design, consumption, materials, and end‐of‐life management is crucial. This review explores advanced materials for sustainable and responsible electronics, highlighting their potential to reduce environmental and health hazards while improving device ...
Rawan Omar, Jiawei Yang, Tan‐Phat Huynh, Kiran Gulia, Sooyun Caroline Tavolacci, Weiwei Wu, Yan Wang, Hossam Haick   +7 more
wiley   +1 more source

Service Life Assessment of Lead and its Alloy Anodes During Zinc Electrowinning

International Journal of Electrochemical Science, 2019
Lead (Pb) and its alloy anodes are widely used in the process of zinc electrowinning. It is important, yet difficult, to evaluate the service life of different anodes with varying components. In this work, electrochemical accelerated corrosion tests were
Chang-jiang Yang, Lv-xing Zhao, Xu Zhang
doaj   +1 more source