Determination of the Floatability of Solids by A Simple Vacuum Flotation Cell

簡易眞空浮選裝置對固體可浮性之研究

楊金鐘(Gordon C. C. Yang)

《鑛冶：中國鑛冶工程學會會刊》 33卷1期 (1989/03) Pp. 128-133

https://doi.org/10.30069/MM.198903_33(1).0011

摘要

A simple vacuum flotation cell has been introduced in this work. This device has been tested with a low-volatile bituminous coal that has been subjected to different degrees of oxidation. Flotation tests were carried out in concentrated sodium chloride solutions and in aqueous methanol solutions, respectively. Experimental results have indicated that the vacuum flotation technique employed is capable of determining the effects of oxidation on coal floatability in both flotation media. Advantages of this vacuum flotation device over the Hallimond tube are also discussed.

並列摘要

本研究引介了一個簡易的真空浮選裝置。這個裝置被用來探討受到不同氧化程度的一種低揮發份煙煤的可浮性。浮選試驗係分別在不同pH值的0.5M氯化鈉與不同濃度的甲醇水溶液中進行。實驗結果顯示，在上述二種水溶液中，這個真空浮選裝置足以檢測出煤的氧化對其可浮性之影響；同樣地，這個真空浮選裝置必可用來測試其他固體的親水性與可浮性。本文也附帶地討論了這個真空浮選裝置優於一般實驗室中常用的哈里蒙浮選管之處。