- Tytuł:
- Measurement of contact angle of copper-bearing shales using the captive bubble method
- Autorzy:
- Szyszka, D.
- Powiązania:
- https://bibliotekanauki.pl/articles/88887.pdf
- Data publikacji:
- 2014
- Wydawca:
- Politechnika Wrocławska. Wydział Geoinżynierii, Górnictwa i Geologii. Instytut Górnictwa
- Tematy:
-
contact angle
hydrophobicity
hydrophilicity
flotation - Opis:
- This paper describes the measurement of contact angle of the natural surface of copper-bearing shales immersed in solutions of selected reagents of various concentrations using captive bubble method. It demonstrates that the copper-bearing shales coming from Legnicko-Głogwski Copper Region develop natural hydrophobic properties in surfactant (frother) solutions and its hydrophobicity decreases from 82⁰ contact angle in distilled water, 78⁰ in C4E1 solutions, 76⁰ in C4E2 solutions, to 75⁰ in dodecylphenol solutions. These data show that the addition of frother causes a decrease of shale hydrophobicity but it can reduce stability of the thin film between the grain and air bubble. It means that flotation of copper-bearing shales in the presence of frother will only be possible provided specific concentrations.
- Źródło:
-
Mining Science; 2014, 21; 83-94
2300-9586
2353-5423 - Pojawia się w:
- Mining Science
- Dostawca treści:
- Biblioteka Nauki