The Influences and the Mechanism of Action of Sodium Hexametaphosphate during Micro Fine Particle of Lean Hematite Ore of Grinding Operation

Abstract:

In this paper, the effect of sodium hexametaphosphate on the hematite was studied and the mechanism was analyzed. The results indicated that under the condition of the optimal grinding medium, compared with the result without sodium hexametaphosphate added, with citric acid added at the mass of 0.30% of the hematite, the content of-0.074mm of grinding production was increased by 6.38%; physical adsorption and chemical adsorption which were on the surface of hematite produced by sodium hexametaphosphate can reduce viscosity of grinding pulp, change surface potential of the hematite, and reduce the hardness on the surface of the hematite. Therefore citric acid can improve the grinding efficiency of the hematite.

• Periodical: Applied Mechanics and Materials (Volumes 641-642)
• Pages: 469-473
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.641-642.469
• Online since: September 2014
• Authors: Bing Liang, Li Bing Zhao, Miao Miao Han, Hao Zhang, Qing Feng Zhang, Wei Min Zheng, Wen Shuang Wu, Ao Shu Meng
• Keywords: Griding Aids, Griding Efficiency, Hematite, Mechanism of Action

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