Results 81 to 90 of about 2,599 (228)

PROCESSING OF SOLUTION AFTER LEACHING OF STEELMAKING DUST BY CEMENTATION

open access: yesActa Metallurgica Slovaca, 2015
The work includes a description of a hydrometallurgical processing of steelmaking dust a waste product of steel production from electric arc furnace (EAF). Most attention is paid to cementation. The aim is to study purification of solution by cementation
Marek Palencar   +2 more
doaj   +1 more source

Simulation of electrochemical processes during oxygen evolution on $\mathrm{Pb-MnO_2}$ composite electrodes

open access: yes, 2017
The geometric properties of $\mathrm{Pb-MnO_2}$ composite electrodes are studied, and a general formula is presented for the length of the triple phase boundary (TPB) on two dimensional (2D) composite electrodes using sphere packing and cutting ...
Aromaa, Jari   +5 more
core   +1 more source

Carbon Dioxide as a Sustainable Reagent in Circular Hydrometallurgy

open access: yesChemSusChem, 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

Alkaline leaching of iron and steelmaking dust [PDF]

open access: yes, 2012
Steel production generates significant quantities of dust and sludge in blast furnaces (BF),basic oxygen furnaces (BOF), and electric arc furnaces (EAF).
Aromaa, Jari, Stafanova, Anna
core  

Membrane electrolysis for separation of cobalt from terephthalic acid in industrial wastewater [PDF]

open access: yes, 2020
Recovery of valuable metals from wastewaters containing both metals and organics is challenging with current technologies, in part due to their interactions. Typical approaches are chemical intensive.
Dominguez-Benetton, Xochitl   +5 more
core   +2 more sources

Hydroxy‐Carboxylic Acids as Green and Abundant Ligands for Sustainable Recovery of Copper from a Multimetallic Powder: A Proof of Concept

open access: yesChemSusChem, Volume 18, Issue 2, January 14, 2025.
Leaching of copper from a multimetallic powder containing di‐ and trivalent cations by exploiting a sustainable and low temperature hydrometallurgical process involving malic and other hydoxy‐carboxylic acids as leaching agents. Copper recovery was performed by precipitation of copper hydroxide from the post‐leaching solution.
Pietro Ostellari   +8 more
wiley   +1 more source

The Electrowinning of Copper from Roasted Sulphides [PDF]

open access: yes, 1937
A hydrometallurgical process for the recovery of copper from flotation concentrates has long been con­sidered an attractive possibility. The object of such a method is to produce electrolytic copper without resorting to expensive matte smelting and ...
Linn, Thomas B.
core   +1 more source

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

open access: yesInternational 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   +5 more
wiley   +1 more source

Particle Size Refinement of Zn Electrodeposits in Alkaline Zincate Solutions with Poly (ethylene glycol) (12) Tridecyl Ether. Part II

open access: yesInternational Journal of Electrochemical Science, 2018
Electrowinning of zinc from alkaline solutions is a promising technology which can directly produce metallic zinc powder from the treatment of zinc-containing ores and wastes.
Jiang Jiachao   +6 more
doaj   +1 more source

Glutaraldehyde-crosslinking for improved copper absorption selectivity and chemical stability of polyethyleneimine coatings [PDF]

open access: yes, 2016
Nano-thin coatings of glutaraldehyde (GA)-crosslinked polyethyleneimine (PEI) are extremely selective and effective in binding copper from seawater. Here it was demonstrated that GA-PEI performs significantly different from PEI. The copper-selectivity of
Kaur, S   +4 more
core   +1 more source

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