Results 51 to 60 of about 5,009 (173)

Hydrometallurgy

open access: yes, 1992
In view of the environmental limitation imposed on cyanide disposal, there is general interest in developing non-toxic, safe substitutes for cyanide in the gold leaching process.
Li, B.   +3 more
core   +3 more sources

Feature Papers in Extractive Metallurgy

open access: yesMetals
Unit metallurgical operation processes are usually separated into three categories: (1) hydrometallurgy (leaching, mixing, neutralization, precipitation, cementation, and crystallization) [...]
Srecko Stopic
doaj   +1 more source

Behavior and Study of the Kinetics Aspects of Hydrothermal Leaching Conducted on Thermal Activated Products of Complex Polymetallic Secondary Sulfide Concentrate [PDF]

open access: yesArchives of Metallurgy and Materials
The utilization of complex polymetallic secondary sulfide concentrate (CPSSC) is difficult, owing to its special structure and composition. In this paper, CPSSC was firstly activated by roasting under atmosphere, followed by hydrothermal leaching under ...
Y. Wu, Y. Liao, H. Ma, J. Li
doaj   +1 more source

Hydrometallurgy

open access: yes, 1997
The extraction of gold from thiosulfate solutions with a mixture of neutral reagents and amines was studied. A combination of the primary amine N-1923 and the neutral donor reagents, such as alkyl phosphorus eaters, was found to be the most effective ...
Wu, ZC, Chen, JY, Zhao, J, Wu, ZH
core  

Development of Recycling Process for Copper-Gallium Target

open access: yesJournal of MMIJ, 2018
Gallium is used as a raw material for a CIGS solar cell. In the manufacturing process of CIGS solar cells, only 30% of the target material is used, and the rest is not used and becomes a spent target scrap.
Masatoshi TAKANO, Satoshi ASANO
doaj   +1 more source

Hydrometallurgy

open access: yes, 1991
The development of solvent extraction research in China since its inception in the 1950's is ...
Tun, Z.
core  

Hydrometallurgy

open access: yes, 1996
Studies on the synergistic extraction of phosphorus, arsenic and silica as impurities from sodium tungstate and molybdate solutions with a solvent mixture of primary amine and tributyl phosphate (TBP) were made.
Zhao, Y. C., Chen, J. Y.
core   +1 more source

Gold Leaching from an Oxide Ore Using Thiocyanate as a Lixiviant: Process Optimization and Kinetics

open access: yesACS Omega, 2021
Atefeh Azizitorghabeh   +3 more
doaj   +1 more source

Selected social impact indicators influenced by materials for green energy technologies

open access: yesNature Communications
The social risks of green energy transition are underexplored. One of the important questions is which materials used in green energy technologies offer the greatest social benefits, such as ensuring decent living conditions, and which pose the most ...
Saeed Rahimpour   +5 more
doaj   +1 more source

Germanium and Indium Recovery from Zinc Metallurgy by-Products—Dross Leaching in Sulphuric and Oxalic Acids

open access: yesMetals, 2018
Leaching of the dross containing 28.7% Sn, 18.0 Pb, 10.6% Cu, 8.9% Ge, 8.1% Zn, and 2.7% In in sulphuric and oxalic acid solution was investigated. The dross was obtained from thermal oxidation of by-product alloy generated during a New Jersey (NJ) zinc ...
Michał Drzazga   +7 more
doaj   +1 more source

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