Mechanism study on flotation separation of molybdenite from chalcocite using thioglycollic acid as depressant

3Citations
Citations of this article
13Readers
Mendeley users who have this article in their library.

Abstract

Effects of collectors (butyl xanthate (BX), O-isopropyl-N-sulfur ethyl carbamate (Z-200) and emulsified kerosene), dereagent (sodium sulfide) and depressant thioglycollic acid (TGA) on the flotation of chalcocite and molybdenite were investigated through flotation. The first principle theory was adopted to understand the difference of their surfaces and reaction between minerals and reagents. Results of flotation tests revealed that selectivity of emulsified kerosene is the best of three collectors in separation of chalcocite and molybdenite, though the others also display excellent collecting properties. Sodium sulfide can effectively remove collectors adsorbed on chalcocite surface, and TGA is an effective depressant of chalcocite at pH 8–9. Through first principle study, molybdenite displays relatively stronger covalence property while bonding interaction between copper atoms in chalcocite enhanced its ionicity. Bonding interaction is weaker in reaction of TGA and molybdenite, so it shows higher hydrophobicity and better flotability. Therefore, TGA is an effective inhibitor in the separation.

Cite

CITATION STYLE

APA

Qin, W., Wu, J., Jiao, F., & Zeng, J. (2017). Mechanism study on flotation separation of molybdenite from chalcocite using thioglycollic acid as depressant. International Journal of Mining Science and Technology, 27(6), 1043–1049. https://doi.org/10.1016/j.ijmst.2017.06.011

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free