Wszystkie pola: obrobka chemiczna - Katalog OPAC zbiorów

Skocz do pozycji: 1.

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

Skocz do pozycji: 2.

Tytuł:: The optimization of low-magnesium zinc concentrate production process
Autorzy:: Jarosiński, A.
Fela, K.
Powiązania:: https://bibliotekanauki.pl/articles/779226.pdf
Data publikacji:: 2009
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: koncentraty cynku
usuwanie magnezu
obróbka chemiczna
ługowanie
Zn-concentrate
magnesium removal
chemical treatment
acid leaching
Opis:: In this paper the result of the study on chemical leaching of zinc concentrate with H2SO4 solution was presented. The object of this work was to assess the effect of some parameters such as acid concentration, the leaching agent amount /stoichiometry amount or excess of acid were applied/, reaction time and temperature on the process. The investigation was performed as a active experiment according to Hartley's plan. The process optimisation procedure was based on the fuzzy logic system. Mainly, the parameters such as magnesium leaching efficiency and zinc losses were taken into account. It was stated that the highest magnesium leaching efficiency of 77.8% with low Zn-losses was reached when H2SO4 solution concentration was 2.5% for 20%-excess of acid, at temperature 25°C and process time of 1 hour.
Źródło:: Polish Journal of Chemical Technology; 2009, 11, 1; 20-23
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

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