Journal of Central South University of Technology

, Volume 12, Issue 6, pp 737–741 | Cite as

Coupling of anionic wetting agents to dust of sulfide ores by dropping liquid method

  • Wu Chao Email author
  • Ou Jia-cai 
  • Zhou Bo 


By using the experimental approach of dropping liquid, the coupling of three anionic wetting agents with ten dust samples of sulfide ores was studied, and particularly the wetting effects of the wetting agents on the sulfide dust influenced by factors of agent concentration and sulfate additive in the wetting agent solutions were investigated. The results show that the when solution temperature is about 20 °C, all the selected wetting agents are effective to most dust samples, but the effect is different. Wetting agents are more effective to the dust which is difficult to be wetted. Wetting agent solution with sodium sulfate can improve the wetting ability of sulfide dust. For sodium dodecyl benzene sulfonate, the suitable concentration of sodium sulfate is 1 – 2 mmol/L. The cost of wetting agents can be reduced because the sodium sulfate is much cheaper than many surfactants. Since the dust of sulfide ores is composed of various minerals and elements, the whole effect of depressing dust should be considered while innovating a wetting agent.

Key words

dust of sulfide ores anionic wetting agent dropping liquid experiment concentration sodium sulfate coupling 

CLC number

X506 TD714 


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Copyright information

© Central South University 2005

Authors and Affiliations

  1. 1.School of Resources and Safety EngineeringCentral South UniversityChangshaChina

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