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中南大学学报(自然科学版)

Journal of Central South University

第31卷    第1期    总第131期    2000年2月

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文章编号:1004-0609(2000)01-0131-05
石灰石超细磨助磨剂及其助磨机理
唐林生1,冯作锋1,林    强2

(1. 青岛化工学院精细化工系,青岛266042; 2. 海南大学理工学院,海口570228)

摘 要: 以石灰石为对象,对超细磨助磨剂及其作用机理进行了研究。结果表明:六偏磷酸钠、氨基三甲叉 膦酸钠和乙二胺四甲叉膦酸钠对石灰石的超细磨具有显著的助磨作用,在达到相同粒度时, 可以节省能耗1/3~1/2;超细磨助磨剂的助磨作用决定于它的分散作用;超细磨助磨剂是能在矿物表面吸附的强亲水性电解质,其吸附能力越强,亲水性越好和带电荷越多,则其分散和助磨作用越好。

 

关键字: 石灰石;超细磨助磨剂;助磨机理

Ultrafine grinding aids and its mechanism
TANG Lin-sheng1, FENG Zuo-feng1, LIN Qiang2

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

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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