Effect of SHMP on the grinding efficiency of bauxite and its mechanisms

Author

Wang, Zehong ; Deng, Shanzhi ; Yu, Fujia ; Han, Yuexin

Author_Institution

Coll. of Resources & Civil Eng., Northeastern Univ., Shenyang, China

fYear

2011

fDate

16-18 Sept. 2011

Firstpage

4483

Lastpage

4485

Abstract

The effect of SHMP on the grinding efficiency of bauxite was studied and the mechanisms was also analyzed in this paper by measuring the absorption characteristics, grinding pulp viscosity, the surface electric potential of the bauxite and the surface appearance of particles. The results showed that the content of -0.074 mm in the ground product was increased by 3.73 percentage points under the same grinding conditions using SHMP as grinding aid. The physical adsorption and chemical adsorption were occurred on the bauxite surface, which could reduce the pulp viscosity and change the surface electric potential of the bauxite. Thus the grinding efficiency was enhanced and the energy consumption of grinding was reduced.

Keywords

adsorption; grinding; mineral processing; minerals; sodium compounds; surface potential; viscosity; (NaPO₃)₆; SHMP; absorption characteristics; bauxite surface; celectric potential; chemical adsorption; energy consumption; grinding aid; grinding condition; grinding efficiency; grinding pulp viscosity; particle surface appearance; physical adsorption; sodium hexametaphosphate; surface electric potential; Aluminum oxide; Educational institutions; Electric potential; Sun; Viscosity; X-ray scattering; Bauxite; Grinding aid; Grinding efficiency; Mechanism;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Control Engineering (ICECE), 2011 International Conference on

Conference_Location

Yichang

Print_ISBN

978-1-4244-8162-0

Type

conf

DOI

10.1109/ICECENG.2011.6058293

Filename

6058293