|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Alumina & Bauxite
||Research on the Interaction between 1-butyl-2-mercaptobenzimidazole and Pyrite
||Tongtong Yang, Guihong Han, Jiongtian Liu, Yanfang Huang, Wencui Chai, Weijun Peng
|On-Site Speaker (Planned)
The flotation desulfurization is generally adapted for the removal of sulfur impurities in the high sulfur bauxite. 1-butyl-2-mercaptobenzimidazole (DMBI) was synthesized and used as collector in the laboratory. The interactions of DMBI and pyrite including adsorption time, solution pH, solution temperature and DMBI concentration were investigated in this work. The results show that the equilibrium adsorption time is 20 min. The adsorption capacity decreases with increasing pH as well as temperature. With the increasing concentration of DMBI, the adsorption capacity increases and achieves the saturated adsorption. The persuo-second-order kinetics equation can well describe the adsorption process. The adsorption of DMBI on pyrite is more consistent with Langmuir isothermal adsorption equation from 298.15 K to 318.15 K. However, the adsorption is more fitted by the Freundlich isothermal adsorption equation at 288.15 K. Thermodynamic studies display that the adsorption of DMBI and pyrite is non-spontaneous and exothermic.
||Planned: Light Metals