The collecting performance and interaction mechanism of sodium diisobutyl dithiophosphinate in sulfide minerals flotation | Zendy

Hong Zhong | Zendy; Zhenrui Huang | Zendy; Gang Zhao | Zendy; Shuai Wang | Zendy; Guangyi Liu | Zendy; Zhanfang Cao | Zendy

Open Access

The collecting performance and interaction mechanism of sodium diisobutyl dithiophosphinate in sulfide minerals flotation

Author(s) -

Hong Zhong,

Zhenrui Huang,

Gang Zhao,

Shuai Wang,

Guangyi Liu,

Zhanfang Cao

Publication year - 2015

Publication title -

journal of materials research and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.832

H-Index - 44

eISSN - 2214-0697

pISSN - 2238-7854

DOI - 10.1016/j.jmrt.2014.12.003

Subject(s) - sphalerite , galena , pyrite , chalcopyrite , sulfide minerals , adsorption , inorganic chemistry , mineral , chemistry , sulfide , lead sulfide , materials science , mineralogy , organic chemistry , copper , nanotechnology , quantum dot

The interaction mechanism of sodium diisobutyl dithiophosphinate (DTPINa) with chalcopyrite, pyrite, galena and sphalerite was investigated by single mineral flotation experiment, adsorption measurement and FTIR spectrum analysis. Single mineral flotation experiments showed that sodium diisobutyl dithiophosphinate exhibited a strong ability to collect chalcopyrite and galena. For chalcopyrite and pyrite, the recovery of chalcopyrite can reach 96.2% when the dosage is 12 mg/L and pH value is 8. In the same situation, the recovery of pyrite is as low as 13.5%. For galena and sphalerite, the recovery of galena reached 91.7% when the dosage was 50 mg/L at pH 11, and the recovery of sphalerite was only 16.9%. DTPINa adsorbed on chalcopyrite and galena surfaces are more than that on pyrite and sphalerite surfaces. The adsorption capacity of DTPINa on the minerals surface is proportional to its dosage. The FTIR spectrum analysis results showed that the adsorption of DTPINa on sulfide minerals surface is chemical and S atoms in PS and PS may have taken part in the reaction. The natural ores experiments also confirmed the excellent performance of sodium diisobutyl dithiophosphinate

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