Results 21 to 30 of about 1,601,986 (333)

A sustainable approach to replace bleed stream in electrical refining of copper

open access: yesMaterials Letters: X, 2022
Despite extensive studies on electrorefining to remove impurities from copper production units, bleeding electrolytes is the most popular method for controlling impurities due to low operating costs.
Mohammadreza Shojaei   +2 more
doaj   +1 more source

Properties of powdered metal-ceramic materials obtained from by-products of the mining and metallurgical industry of Uzbekistan [PDF]

open access: yesE3S Web of Conferences, 2023
One of the actual problems of production is the use of various waste products, in particular metallurgical. The method of powder metallurgy allows the use of waste from metallurgical industries.
Norkhudjayev F. R.   +4 more
doaj   +1 more source

Skeuomorphism, Boundary Objects and Socialization of the Chalcolithic Metallurgy in the Southern Levant

open access: yesEtnoantropološki Problemi, 2016
Metalworking emerged in the southern Levant as a new ritual practice during the late phase of the Ghassulian culture, ca. 4300–3900 BC. Ghassulian metalworkers cast objects in both pure and alloyed copper. All the artifacts produced during this time span
Milena Gošić
doaj   +3 more sources

Research Status of Slag Corrosion Resistance in Magnesia Chrome Refractories Applied in Copper Metallurgy

open access: yesKuangchan zonghe liyong, 2023
This is a paper in the field of ceramic materials for metallurgy. Magnesia chrome refractory is widely used in copper industry due to its excellent high temperature strength, fine slag corrosion resistance and good performance.
Guolong Ni, Shuhuan Wang, Qun Li
doaj   +1 more source

The Alteration Mechanism of Copper-bearing Biotite and Leachable Property of Copper-bearing Minerals in Mulyashy Copper Mine, Zambia

open access: yesScientific Reports, 2019
The XRF, XRD, polarizing microscopy and SEM-EDS were used to study the alteration mechanism of copper-bearing biotite and the leachable property of copper-bearing minerals in Mulyashy Copper Mine, Zambia.
Gai-rong Wang   +4 more
doaj   +1 more source

Copper metallurgy in ancient Etruria (southern Tuscany, Italy) at the Bronze-Iron Age transition: a lead isotope provenance study

open access: yesJournal of Archaeological Science: Reports, 2018
The Etruscan site of Populonia-Baratti (Southern Tuscany, Italy) became in the first millennium BCE one of the most important iron metalworking sites in the Mediterranean region thanks to the exploitation of nearby Elba Island iron ores.
L. Chiarantini   +7 more
semanticscholar   +1 more source

Wear synergy of copper-iron mixtures processed by powder metallurgy

open access: yes, 2021
Through the powder metallurgy process, copper and iron powders were mixed in the proportions Cu between 15% to 75% and iron from 25% to 85% that made up the binary material systems.
Operador, W   +2 more
core   +1 more source

Mineralogical investigations in metallurgy as a contribution to the affirmation of industrial mineralogy in Serbia

open access: yesZaštita Materijala, 2014
Industrial mineralogy is a part of mineralogy dealing with natural and synthetic minerals, raw materials, secondary raw materials, polymineral materials that originated from the production processes, etc.
Snežana Dević, Mira Cocić
doaj   +1 more source

Control of Copper Content in Flash Smelting Slag and the Recovery of Valuable Metals from Slag—A Thermodynamic Consideration

open access: yesMetals, 2023
To determine slag properties and the factors influencing these properties for optimization of operating conditions in the copper flash smelting process, the composition and microstructures of the quenched smelting and converting slags have been analyzed.
Sui Xie   +3 more
doaj   +1 more source

The Metallurgy of Copper [PDF]

open access: yesScientific American, 1919
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openaire   +2 more sources

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