Temat: zinc concentrates - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Behavior of arsenic in hydrometallurgical zinc production and environmental impact
Autorzy:: Peltekov, A. B.
Boyanov, B. S.
Markova, T. S.
Powiązania:: https://bibliotekanauki.pl/articles/779129.pdf
Data publikacji:: 2014
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: arsenic
arsenopyrite
zinc concentrates
roasting
leaching
Opis:: The presence of arsenic in zinc sulphide concentrates is particularly harmful, because it creates problems in zinc electrolysis. The main source of arsenic in non-ferrous metallurgy is arsenopyrite (FeAsS). In oxidative roasting of zinc concentrates, FeAsS oxidizes to arsenic oxides (As₂O₃, As₂O₅). In this connection a natural FeAsS was examined, and also the distribution of arsenic in the products of the roasting process, the cycle of sulphuric acid obtaining and the leaching of zinc calcine were studied. The arsenic contamination of soils in the vicinity of nonferrous metals smelter KCM SA, Plovdiv, Bulgaria as a result of zinc and lead productions has been studied.
Źródło:: Polish Journal of Chemical Technology; 2014, 16, 4; 80-86
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Purification of sphalerite concentrate in the chemical and flotation way
Autorzy:: Jarosiński, A.
Powiązania:: https://bibliotekanauki.pl/articles/779474.pdf
Data publikacji:: 2008
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: koncentraty cynku
usuwanie magnezu
obróbka chemiczna
flotacja
zinc concentrates
magnesium removal
chemical treatment
flotation
Opis:: In this paper the results of the investigation of magnesium removal, from zinc concentrate derived from zinc-lead ore enrichment plant, have been presented. The characteristics of the initial concentrate and the occurrence forms of dolomite in this material are estimated. It was found that magnesium is collected in the finest fraction of the initial material. The influence of chemical treatment and flotation on the quality improvement of zinc concentrate is determined. This method permits to obtain zinc concentrate containing below 0,3% Mg and about 0,7% Ca.
Źródło:: Polish Journal of Chemical Technology; 2008, 10, 4; 20-24
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

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