Results 11 to 20 of about 639,172 (271)

A Molten Salt Extraction Method for Palladium Recovery via the CaPd<sub>2</sub> Intermetallic Compound. [PDF]

open access: yesAdv Sci (Weinh)
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 ...
Zhang J   +6 more
europepmc   +2 more sources

Recovery of Non-Ferrous Metal from Metallurgical Residues

open access: yes, 2023
Non-ferrous metals and alloys are essential resources for the development of modern industries [...
Guo Chen
core   +1 more source

NON-FERROUS METALS: TYPES, PROPERTIES AND APPLICATIONS

open access: yes, 2023
Tema ovog diplomskog rada jest „Obojeni metali i njihove legure“. U radu je opisan nastanak, svojstva, te vrste određenih metala i njihove legure i njihove uporabe.
Papić, Luka
core   +2 more sources

Al-Si-Re Alloys Cast by the Rapid Solidification Process / Stopy Al-Si-Re Odlewane Metodą Rapid Solidification

open access: yesArchives of Metallurgy and Materials, 2015
The aim of the studies described in this article was to present the effect of rare earth elements on aluminium alloys produced by an unconventional casting technique. The article gives characteristics of the thin strip of Al-Si-RE alloy produced by Rapid
Szymanek M.   +4 more
doaj   +1 more source

Time-varying hedge ratios for non-ferrous metals prices

open access: yes, 2005
This paper examines the effectiveness of time-varying bivariate GARCH and GARCH-X determined hedge ratios for six non-ferrous metals cash-futures portfolios against time-invariant alternatives.
McMillan, David
core   +1 more source

Influence of the speed of downward semi-continuous casting on the crystal size and mechanical properties of recycled copper

open access: yesMetalurgija, 2023
In this study, the influence of the speed of downward semi-continuous casting on the crystal size and mechanical properties of recycled copper after casting and cold deformation was investigated. It was shown that the increase in the casting speed from 0,
M. Maleta   +4 more
doaj  

Deposition of Arsenic from Nitric Acid Leaching Solutions of Gold–Arsenic Sulphide Concentrates

open access: yesMetals, 2021
At present, the processing of refractory gold–arsenic sulphide concentrates is becoming more relevant due to the depletion of rich crude ore reserves.
Kirill Karimov   +5 more
doaj   +1 more source

Theory of storage, inventory and volatility in the LME base metals [PDF]

open access: yes, 2013
The theory of storage, as related to commodities, makes two predictions involving the quantity of the commodity held in inventory. When inventory is low (i.e.
Smith, William O.   +3 more
core   +1 more source

An investigation into the use of batch experiments in the determination of the kinetics of ferrous-iron oxidation by Leptospirillum ferrooxidans [PDF]

open access: yes, 2000
Bibliography: leaves 60-64.The objectives of this research were to investigate the effect of temperature and pH on the bacterial ferrous-iron oxidation by Leptospirillum ferrooxidans in batch culture and compare these results with those previously ...
Dempers, Christian John Nicholas
core   +1 more source

The effect of the rolling process on selected properties of magnesium copper with microadditives

open access: yesMetalurgija, 2023
The article presents the results of rolling magnesium copper castings with microadditives of P, Al, Ti, and Zr. The castings were made in the process of static casting into rods with a diameter of 20 mm. The obtained castings were shaped with a 3 % draft
D. Kołacz   +6 more
doaj  

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