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Effectiveness of Copper Minerals Liberation from the Gangue through Application of HRC Press in Copper Ore Processing Circuits

100%
Saramak D., Gawenda T., Saramak A., Foszcz D., Naziemiec Z.
Archives of Mining Sciences
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2018
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vol. 63
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issue 2
2
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Lodowe meteoryty, kosmiczne galarety i kamienie jak pył?

100%
Strzeja J.
Acta Societatis Metheoriticae Polonorum
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2009
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vol. 1
129-136
EN
Abstract: This article is appeared a problem of meteorites classification and tried to connect interpretation and explanation of other phenomenon which are situated on the border between science and fiction. The conventional classification of meteorites indexed them as: (1) stony meteorites, (2) stony-iron meteorites and (3) iron meteorites. The matter of the Solar System could have various forms and its very varied in relation according to their physical, chemical and mineralogical aspects. In compliance with the above, the author tried to extend the classification by added e.g. ice meteorites, which are recognized in Russian literature. Sometimes others, not classified phenomenon are described as “colorful rains”, “jelly matter”, gas-dust objects or sudden, local darkness. As an evidences that could confirm the main theses of the author, an examples of literature are quoted. All of them should be supported by science investigations which are limited by rare frequency of the phenomena occurrence. By better description of small and different portions of cosmic matter, we could understand the Solar System and its laws.
3
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Pochodzenie materii meteorytowej

100%
Kozłowski S.
Acta Societatis Metheoriticae Polonorum
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2023
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vol. 14
100-113
EN
In this article, I briefly review the history of the elements in the Universe, starting from cosmic inflation and ending at the creation of elements and minerals that we find in meteorites.
4
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The content of heavy metals in foundry dusts as one of the criteria for assessing their economic reuse

86%
Bożym M., Klojzy-Karczmarczyk B., Bożym M., Klojzy-Karczmarczyk B.
Gospodarka Surowcami Mineralnymi
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2020
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vol. 36
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issue 3
5
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Trace Metal Levels in Vehicle Air and Pollen Filter Dusts by the BCR Extraction Procedure

72%
Altundağ H., Dündar M. Ş., Keskin C. S.
Ecological Chemistry and Engineering S
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2013
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vol. 20
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issue 2
257-264
EN
The availability of Cd, Co, Cr, Cu, Mn, Ni, Pb, Fe and Zn of dust from vehicle air and pollen filters were investigated by four-step BCR (European Community Bureau of Reference) sequential extraction procedure. The acid-soluble, reducible, oxidizable, residual extracts were measured by inductively coupled plasma-optical emission spectrometry (ICP-OES). The results indicated that both of air and pollen filter dusts contained higher concentration of Fe. To estimate the accuracy of the method the standard reference material BCR 701 was used. The results for recovery all the elements were found in the range 95.4-101.3%. The mean concentrations [μg/g] of trace elements in dusts from air filters/pollen filters were: cadmium 16.72/17.56; cobalt 24.22/23.72; chromium 46.02/55.44; copper 44.92/37.67; iron 1868.03/1854.92; manganese 231.2/213.64; nickel 38.89/45.27; lead 60.99/67.17; zinc 199.58/201.25. The results obtained are in agreement with data reported in the literature.
PL
Zbadano zawartość Cd, Co, Cr, Cu, Mn, Ni, Pb, Fe i Zn w pyłach powietrza z pojazdów i w filtrach pyłowych za pomocą sekwencyjnej procedury ekstrakcji BCR (European Community Bureau of Reference). Skład ekstraktów zawierających substancje rozpuszczalne w kwasach, redukowalne i utlenialne był badany za pomocą metody indukcyjnie wzbudzonej plazmy sprzężonej z optyczną spektroskopią emisyjną (ICP-OES). Wyniki wskazują, że zarówno powietrze, jak i materiał z filtrów pyłowych zawierały zwiększone stężenia Fe. Do oszacowania dokładność metody wykorzystano standardowy materiał referencyjny BCR 701. Odzysk wszystkich pierwiastków mieścił się w zakresie 95,4-101,3%. Średnie stężenia [μg/g] pierwiastków śladowych w pyle z filtrów powietrza/filtrów pyłowych wynosiły dla kadmu 16,72/17,56; kobaltu 24,22/23,72; chromu 46,02/55,44; miedzi 44,92/37,67; żelaza 1868,03/1854,92; manganu 231,2/213,64; niklu 38,89/45,27; ołowiu 60,99/67,17; cynku 199,58/201,25. Uzyskane wyniki są zgodne z danymi literaturowymi.
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