Temat: arc furnace - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Optimizing of Work Arc Furnace to Decopperisation of Flash Slag
Autorzy:: Bydałek, A. W.
Biernat, S.
Wołczyński, W.
Bydałek, A.
Powiązania:: https://bibliotekanauki.pl/articles/381319.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: electrorefining
decopperisation
slag suspension
arc furnace
elektrorafinacja
odmiedziowanie
żużel zawiesinowy
piec łukowy
Opis:: Discusses an attempt to optimize the operation of an electric furnace slag to be decopperisation suspension of the internal recycling process for the production of copper. The paper presents a new method to recover copper from metallurgical slags in arc-resistance electric furnace. It involves the use of alternating current for a first period reduction, constant or pulsed DC in the final stage of processing. Even distribution of the electric field density in the final phase of melting caused to achieve an extremely low content of metallic copper in the slag phase. They achieved by including the economic effects by reducing the time reduction.
Źródło:: Archives of Foundry Engineering; 2015, 15, 3; 21-24
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Dynamic Mode of Copper Recovery from the Post-Processing Slags
Autorzy:: Wołczyński, W.
Bydałek, A. W.
Migas, P.
Tarasek, A.
Najman, K.
Powiązania:: https://bibliotekanauki.pl/articles/352769.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: post-processing slag
complex reagent
copper recovery
arc furnace
rotating tilted electrode
Opis:: The post-processing slags containing about 0.8 wt.% of copper were subjected to the treatment of a complex reagent. The chemical composition of the complex reagent has been elaborated and patented in frame of the Grant No. PBS3/A5/45/2015. The slags had an industrial origin and were delivered by the Smelter and Refinery Plant, Głogów, as a product of the direct-to-blister technology performed in the flash furnace assisted by the arc furnace. An agglomeration of copper droplets suspended in the liquid slag, their coagulation, and deposition on the bottom of furnace were observed after the treatment this post-processing slag by the mentioned reagent. The treatment of the post-processing slags by the complex reagent was performed in the arc furnace equipped with some additional electrodes situated at the furnace bottom (additional, in comparison with the arc furnace usually applied in the Smelter and Refinery Plant, Głogów). The behaviour of the copper droplets in the liquid slag within the competition between buoyancy force and gravity was studied from the viewpoint of the required deposition of coagulated copper droplets. The applied complex reagent improves sufficiently the surface free energy of the copper droplets. In the result, the mechanical equilibrium between coagulated copper droplets and surrounding liquid slag is properly modified. Eventually, sufficiently large copper droplets are subjected to a settlement on the furnace bottom according to the requirements. The agglomeration and coagulation of the copper droplets were significantly improved by an optimized tilting of the upper electrodes and even by their rotation. Moreover, the settlement was substantially facilitated and improved by the employment of both upper and lower system of electrodes with the simultaneous substitution of the variable current by the direct current.
Źródło:: Archives of Metallurgy and Materials; 2018, 63, 4; 1923-1930
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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