用俘获泡法测量含铜页岩的接触角

IF 1.3 Q3 Earth and Planetary Sciences

Mining Science Pub Date : 2014-01-01 DOI:10.5277/MS142107

Danuta Szyszka

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引用次数: 2

摘要

本文介绍了用俘获泡法测定含铜页岩自然表面浸在选定的不同浓度试剂溶液中的接触角。研究表明，来自Legnicko-Glogwski Copper Region的含铜页岩在表面活性剂(起泡剂)溶液中具有天然疏水性，其疏水性从蒸馏水中的82⁰⁰下降到C4E1溶液中的78⁰⁰，C4E2溶液中的76⁰⁰，到十二烷基酚溶液中的75⁰。结果表明，泡沫剂的加入降低了页岩的疏水性，但降低了颗粒与气泡之间薄膜的稳定性。这意味着在存在泡沫的情况下，含铜页岩只有在特定浓度下才有可能浮选。

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MEASUREMENT OF CONTACT ANGLE OF COPPER- BEARING SHALES USING THE CAPTIVE BUBBLE METHOD

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-Glogwski 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.

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来源期刊

Mining Science MINING & MINERAL PROCESSING-

CiteScore

2.40

自引率

0.00%

发文量

审稿时长

24 weeks

期刊介绍： Mining Scince. Scientific Papers of the Department Geoengineering, Mining and Geology of the Wroclaw University of Technology. The journal publishes original papers on mining and geology, geo-engineering and the related issues. The journal is devoted to the following topics: fundamental research in mining, underground and open-cast mining technologies, blasting technology, design and construction of mines, geomechanics and geotechnical engineering, mine ventilation, fluid mechanics and its application in mining, mining machinery and condition monitoring, mineral processing, environmental protection and waste utilization. The journal also accepts papers concerns geoengineering which is a sciences covering mining construction, geotechnical engineering, GIS, and earth sciences.