Study on the Improvement of Emulsified Flotation Reagent

Author

Bai Yana ; Zhu Shuquan ; Wu Yinggang ; Gong Zaiqing

Author_Institution

China Coal Technol. & Eng. Group, China Coal Res. Inst., Beijing, China

fYear

2012

fDate

July 31 2012-Aug. 2 2012

Firstpage

847

Lastpage

850

Abstract

Flotation experiments for Shanxi Dianping coal were carried out by diesel oil, ZFC and ZFC-1, and superior flotation parameter combinations of which were researched. The results show that ZFC-1 has better collectivity and selectivity to coal sample. The ZFC-1 clean coal recovery increases by 2.47% and 2.93% than diesel oil and ZFC, respectively, and combustible material recovery increases by 2.56% and 3.14%, and its clean coal ash decreases by 0.19% and 0.41%. The reagent promoting mechanism of ZFC-1 was studied by measuring gas-liquid interfacial tension and contact angle. As can be expected, ZFC-1 can improve hydrophobicity of coal surface and coal floatability.

Keywords

coal; combustion; contact angle; flotation (process); hydrophobicity; petroleum; surface tension measurement; Shanxi Dianping coal; ZFC-1 clean coal recovery; coal floatability; coal sample; coal surface hydrophobicity; combustible material recovery; contact angle measurement; diesel oil; emulsified flotation reagent; flotation parameter; gas-liquid interfacial tension measurement; reagent promoting mechanism; Ash; Coal; Embryo; Equations; Indexes; Minerals; Slurries; Collector; Emulsified oil; Flotation; Frother; Slurry concentration;

fLanguage

English

Publisher

ieee

Conference_Titel

Digital Manufacturing and Automation (ICDMA), 2012 Third International Conference on

Conference_Location

GuiLin

Print_ISBN

978-1-4673-2217-1

Type

conf

DOI

10.1109/ICDMA.2012.199

Filename

6298648