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Wyszukujesz frazę "copper slag" wg kryterium: Temat

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    Wyświetlanie 1-8 z 8
    Tytuł:
    The Decopperization and Coagulation by Use the Carbon-N-Ox Method
    Autorzy:
    Bydałek, A.
    Migas, P.
    Wołczyński, W.
    Karwan-Baczewska, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/355826.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    crystals morphology
    calcium compounds
    copper slag
    salts
    Opis:
    This paper discusses the impact of complex chemical reagents during the process of decopperisation of slag. The beneficial effect of carbide response factors with the participation of nitrogen was indicated as well as the role of stimulators surfactants. Based on the results of the research the basic structure of the slag during decopperisation was systematized. The effects of coagulation of droplets of copper in the slag were shown in this paper.
    Źródło:
    Archives of Metallurgy and Materials; 2017, 62, 4; 2375-2380
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessment of the Harmfulness of the Slags from Copper Smelting Processes, in an Aspect of their Management
    Autorzy:
    Holtzer, M.
    Bydałek, A.
    Wołczyński, W.
    Kmita, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/382572.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    innovative technology
    slag copper
    leaching
    environmental protection
    technologia innowacyjna
    żużel
    ługowanie
    ochrona środowiska
    Opis:
    There are two methods to produce primary copper: hydrometallurgical and pyrometallurgical. Copper concentrates, from which copper matte is melted, constitute the charge at melting primary copper in the pyrometallurgical process. This process consists of a few stages, of which the basic ones are roasting and smelting. Smelting process may be bath and flash. Slag from copper production, on the end of process contain less 0,8%. It is treat as a waste or used other field, but only in a few friction. The slag amount for waste management or storage equaled 11 741 – 16 011 million tons in 2011. This is a serious ecological problem. The following slags were investigated: slag originated from the primary copper production process in the flash furnace of the Outtokumpuja Company in HM Głogów 2 (Sample S2): the same slag after the copper removal performed according the up to now technology (Sample S1): slag originated from the primary copper production process in the flash furnace of the Outtokumpuja Company in HM Głogów 2, after the copper removal performed according the new technology (Sample S3). In practice, all tested slags satisfy the allowance criteria of storing on the dumping grounds of wastes other than hazardous and neutral.
    Źródło:
    Archives of Foundry Engineering; 2017, 17, 3; 191-195
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Structural Analysis of the Selected Products From the Suspension Furnace Produced in the Internal Recycling
    Autorzy:
    Bydałek, A. W.
    Schlafka, P.
    Grządko, K.
    Wołczyński, W.
    Kwapisiński, P.
    Bromber, S.
    Wędrychowicz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/382682.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    slag
    copper recovery
    recycling
    żużel
    odzyskiwanie miedzi
    recykling
    Opis:
    There are presents the internal recycling in anode furnace, in addition to mainly blister copper and converter copper. During the process there arise the two types of semi-finished products intended for further pyro metallurgical processing: anode copper and anode slag. The stream of liquid blister copper enters into the anode furnace treatment, in which the losses are recovered, e.g. copper, resulting from oxidation and reduction of sulfides, oxides and the oxidation of metallic compounds of lead, zinc and iron. In the liquid phase there are still gaseous states, which gives the inverse relationship relating to the solid phase, wherein the gases found an outlet in waste gas or steam. The results of chemical analysis apparently differ from each other, because crystallite placement, the matrix structure and the presence of other phases and earth elements are not compared, which can be regained in the process of electrorefining. One should not interpret negatively smaller proportion of copper in the alloy, since during the later part of the production more elements can be obtained, for example from sludge, such as platinum group metals and lanthanides. According to the research the quality of blister copper, to a large extent, present in the alloy phase to many other elements, which can be recovered.
    Źródło:
    Archives of Foundry Engineering; 2017, 17, 2; 9-14
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Copper droplets agglomeration/coagulation in the conditions similar to industrial ones
    Autorzy:
    Wołczyński, W.
    Sypien, A.
    Tarasek, A.
    Bydałek, A. W.
    Powiązania:
    https://bibliotekanauki.pl/articles/352214.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    thermo-chemical treatment
    copper droplets
    post-processing slag
    coagulation
    Opis:
    The studied copper droplets suspension in the liquid slag came from the direct-to-blister technology developed in the KGHM - Polska Miedź S.A. plants. A treatment by the stimulators and reagents was performed in the conditions delivered / ensured by the BOLMET S.A., Wiechlice. These conditions were similar to those usually applied to the industrial process. Particularly, this treatment was similar, to some extent, to that known for the electric arc-furnace technology employed in the Smelter and Refinery Plant, Głogów. An effectiveness of the newly developed and patented complex chemical/reagent for the copper removal from slag was tested during the treatment. The effect of the liquid slag stirring on the copper droplets self-cleaning was also analysed. The performed test confirmed the effectiveness of the studied complex reagent in agglomeration, coagulation and sedimentation of the copper droplets.
    Źródło:
    Archives of Metallurgy and Materials; 2017, 62, 1; 289-296
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Reagents Activity in a Copper Droplets / Post-Processing Slag Suspension
    Autorzy:
    Wołczyński, W.
    Karwan-Baczewska, J.
    Najman, K.
    Bydałek, A. W.
    Powiązania:
    https://bibliotekanauki.pl/articles/383208.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    slag
    liquid slag
    post-processing
    coagulation
    sedimentation
    copper droplets
    flash furnace
    żużel
    koagulacja
    sedymentacja
    miedź
    piec typu flash
    Opis:
    The suspension of the copper droplets in the post-processing slag taken directly from the KGHM-Polska Miedź S.A. Factory (from the direct-to-blister technology as performed in the flash furnace) was subjected to the special treatment with the use of the one of the typical industrial reagent and with the complex reagent newly patented by the authors. This treatment was performed in the BOLMET S.A. Company in the semi-industrial conditions. The result of the CaCO3, and Na2CO3 chemicals influence on the coagulation and subsequent sedimentation of copper droplets on the crucible bottom were subjected to comparison with the sedimentation forced by the mentioned complex reagent. The industrial chemicals promoted the agglomeration of copper droplets but the coagulation was arrested / blocked by the formation of the lead envelope. Therefore, buoyancy force forced the motion of the partially coagulated copper droplets towards the liquid slag surface rather than sedimentation on the crucible bottom. On the other hand, the complex reagent was able to influence the mechanical equilibrium between copper droplets and some particles of the liquid slag as well as improve the slag viscosity. Finally, the copper droplets coagulated successfully and generally, were subjected to a settlement on the crucible bottom as desired / requested.
    Źródło:
    Archives of Foundry Engineering; 2016, 16, 3; 147-150
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Determining the Degree of Removal of Copper From Slag
    Autorzy:
    Bydałek, A. W.
    Migas, P.
    Wołczyński, W.
    Biernat, S.
    Bydałek, A.
    Jasińska, K.
    Kwapisiński, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/381015.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    post process slag
    copper recovery
    coagulation
    żużel poobróbkowy
    odzysk miedzi
    proces koagulacji
    Opis:
    The scope of work included the launch of the process of refining slag suspension in a gas oven using a variety of technological additives. After the refining process (in the context of copper recovery), an assessment of the effect of selected reagents at the level of the slag refining suspension (in terms of copper recovery). Method sieve separated from the slag waste fraction of metallic, iron - silicate and powdery waste. Comparison of these photographs macroscopic allowed us to evaluate the most advantageous method of separating metallic fraction from the slag. After applying the sample A (with KF2 + NaCl) we note that in some parts of the slag are still large amounts of metallic fraction. The fraction of slag in a large majority of the elements has the same size of 1 mm, and a larger portion of the slag, the size of which is from 2 to 6 mm. Definitely the best way is to remove the copper by means of the component B (with NaCl ) and D (with KF2). However, as a result of removing the copper by means of component C (with CaO) were also obtained a relatively large number of tiny droplets of copper, which was problematic during segregation. In both cases we were able to separate the two fractions in a fast and simple manner.
    Źródło:
    Archives of Foundry Engineering; 2016, 16, 4; 41-46
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    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
    Artykuł
    Tytuł:
    Complex Reagent Efficiency in Reduction of Copper from the Slags in Conditions of the Smelter & Refinery Plant - Głogów
    Autorzy:
    Wołczyński, W.
    Migas, P.
    Bydałek, A. W.
    Najman, K.
    Senderowski, C.
    Kwapisiński, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/382620.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    solidification process
    copper droplets
    complex reagent
    slag
    thermo-chemical treatment
    krzepnięcie
    miedź
    odczynniki
    żużel
    obróbka cieplno-chemiczna
    Opis:
    The copper droplets contained in the post-processing liquid slag are subjected to the treatment by the complex reagent. The complex reagent has been recently elaborated and patented in frame of the Grant No. PBS3/A5/45/2015. In particular, the complex reagent is dedicated to the post-processing slags coming from the Smelter and Refinery Plant, Głogów, as a product of the direct-to-blister technology performed in the flash furnace. The recently patented complex reagent effectively assists not only in agglomeration, and coagulation but also in the deposition of the copper droplets at the bottom of crucible / furnace as well. The treatment of the post-processing slags by the complex reagent was performed in the BOLMET S.A. Company as in the industrial conditions which were similar to those usually applied in the KGHM – Polish Copper (Smelter and Refinery Plant, Głogów). The competition between buoyancy force and gravity is 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. Finally, sufficiently large copper droplets are subjected to a settlement on the crucible / furnace bottom according to the requirements.
    Źródło:
    Archives of Foundry Engineering; 2018, 18, 3; 86-90
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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