(1. 青島化工學(xué)院精細(xì)化工系，青島266042； 2. 海南大學(xué)理工學(xué)院，海口570228)
摘 要: 以石灰石為對(duì)象，對(duì)超細(xì)磨助磨劑及其作用機(jī)理進(jìn)行了研究。結(jié)果表明：六偏磷酸鈉、氨基三甲叉 膦酸鈉和乙二胺四甲叉膦酸鈉對(duì)石灰石的超細(xì)磨具有顯著的助磨作用，在達(dá)到相同粒度時(shí), 可以節(jié)省能耗1/3～1/2；超細(xì)磨助磨劑的助磨作用決定于它的分散作用；超細(xì)磨助磨劑是能在礦物表面吸附的強(qiáng)親水性電解質(zhì)，其吸附能力越強(qiáng)，親水性越好和帶電荷越多，則其分散和助磨作用越好。
關(guān)鍵字: 石灰石；超細(xì)磨助磨劑；助磨機(jī)理
（1. Department of Fine Chemicals, Qingdao Institute of Chemical Technology, Qingdao 266042, P.R.China;
2. College of Technology, Hainan University, Haikou 570228, P.R.China）
Abstract:Ultrafine grinding aids of limestone and its grinding promotion mechanism have been investigated. The results show that sodium hexametaphosphate, sodium amino trimethylene phosphonate and sodium ethylenediamine tetramethylene phosphonate have marked promotion activity on the ultrafine grinding of limestone, the energy consumption can reduced by 1/3～1/2 for products with same particle size; the activity of ultrafine grinding aids depends on their dispersity; ultrafine grinding aids are a kind of strongly hydrophilic electrolyte which may be adsorbed on minerals, the stronger its adsorption ability and hydrophilicity and more its charge, the better its dispersion and grinding promotion activity.
Key words: limestone; ultrafine grinding aids; grinding promotion mechanism
