摘要
研究了微细粒滑石在水介质中的分散与聚团行为。当ｐＨ＞６．５时，滑石处于分散状态，反之，滑石处于聚团状态。当ｐＨ＞６．５时，适当的能量输入可使微细粒滑石亦处于聚团状态。研究结果表明，滑石表面具有疏水作用能是决定其在水介质中基本行为的重要因素。讨论了十二胺、十二烷基硫酸钠及六偏磷酸钠对滑石在水介质中的分散与聚团行为的影响。
The dispersion and flocculation behaviours of extremely fine talc in aqueous medium are described in this paper.At pH>6. 5 talc occurs in the dispersed state and below pH 6. 5 in the flocculation state. At pH>6. 5 appropriate energy input can make extremely fine talc particles in the flocculation state. The results show that the hydrophobic energy of the surface of talc particles is a key factor for determing their basic behaviours in aqueous medium.The authors discuss the influence of dodecylamine,sodium dodecylsulfate and sodium hexametaphosphate on the dispersion and flocculation behaviours of talc in aqueous medium.
出处
《矿冶工程》
CAS
CSCD
北大核心
1996年第2期21-25,共5页
Mining and Metallurgical Engineering
关键词
滑石
分散
聚团
疏水作用
水介质
Talc
Dispersion and flocculation
Hydrophobic effet
