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Electrokinetic and Flotation Investigations of Surface Properties Modification of magnesite.and Serpentinite Using Biosurfactants and Surfactants

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Journal of Physical Science and Application 2015年第2期5卷 87-95页

作者： Agnieszka Didyk-Mucha Izabela Polowczyk Zygmunt Sadowski Jan Kudelko Chemical Engineering Department Wroclaw University of Technology Wroclaw 50-370 Poland Geoengineering Mining and Geology Department Wroclaw University of Technology Wroclaw 50-370 Poland

This paper presents some results of zeta potential measurements performed into biosurfactant adsorption onto magnesite.and serpentinite surface. Zeta potential and isoelectric point measurement of magnesite.and serpentinite particles before and after interaction with biosurfactant broth solution and activator （nickel（II） ion solution） were carried out. The zeta potential results show that presence of biosurfactants changes both magnesite.and serpentinite surface potential by physical adsorption which increases the hydrophobicity of mineral particles. Measurements of particles zeta potential in the presence of biosurfactant broth are relevant to the minerals flotation. Hallimod flotation response of magnesite.and serpentinite as a function of collector concentration was investigated. Bioflotation test results show that at the presence of broth, the flotation separation of magnesite.from serpentinite is possible.

关键词： Zeta potential adsorption bioflotation biosurfactant activation serpentinite magnesite.

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Energy Saving by Applying 3000kVA Electric Arc Furnace in Fused Magnesia Production

Energy Saving by Applying 3000kVA Electric Arc Furnace in Fu...

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中国材料大会2012

作者： Guochao Qi Fengjun Shan Qiang Li Jingyuan Yu School of Materials Science and Engineering Liaoning University of Technology

ISBN: (纸本)9783037856093;3037856092

Fused magnesia is an essential basic material for metal making and construction *** magnesia is usually produced with mineral arc *** China,1600 kVA arc furnaces are widely used as fused magnesia production *** unit power consumption for magnesia production is about 3000 kWh/t,higher than that in developed *** this research,a 3000 kVA new arc furnace was used to produce fused magnesia,and the unit consumption decreased to 2560kWh/*** experimental results showed that the new furnace has good energy saving effect and market prospects.

关键词： Mineral arc furnace Fused magnesia magnesite.

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