Study on interaction energy between flotation reagent and mineral surface

Abstract

The interaction between a flotation reagent and mineral surface not only depends on the bonding atom, but also depends on the adjacent atom of mineral surface, a flotation reagent and the medium in the system of flotation. Energy equation of a reagent interacting with mineral surface has been deduced from this model. Results of the studies indicate that the interaction energy between mineral surface and a reagent is about several dozen kJ/mol, and the relationship between adsorbing concentration of xanthate on mineral surface and interaction energy is the exponent form.

Keywords

flotation reagent / mineral surface / interaction

References

[1] ChenJianhua, FengQiming, OuLeming, et al.. A new organic depressant in flotation of chalcopyrite and pyrite in alkaline medium. Nonferrous Metals, 1997, 49(4): 29-33(in Chinese)

[2] ChenJianhua, FengQiming, LuYiping. Structure of organic depressant and its depressing on sulfide minerals. Nonferrous Metals, 1998, 50(3): 60-64(in Chinese)

[3] ChenJianhua, FengQiming, OuLeming. Separation of pyrite from chalcopyrite with organic depressant CTP. Transactions of Nonferrous Metals Society of China, 1998, 8(1): 132-137

[4] ChenJianhua, FengQiming, LuYiping, et al.. Mechanism of organic depressant CTP on separation of pyrite and chalcopyrite. The Chinese Joural of Nonferrous Metals, 1997, 8(1): 122-125(in Chinese)

[5] WangDianzuo. Electronegative calculation of flotation reagents. Nonferrous Metal, 1975, 4: 44-44(in Chinese)

[6] WangDianzuo. Application of molecular orbital approach in flotation reagents. Nonferrous Metal, 1978, 8: 32-32(in Chinese)

[7] Wang Jing. The application of HMO on calculating reagents parameters and interaction mechanism, Nonferrous Metal (in Chinese), 1994(1):37–40

[8] TakahashiK, HayashidaO, NumataY. Quantum chemical approach to the adsorption of mercaptobenzothiazole on pyrite by the molecular orbital method. XVIII International Mineral Processing Congress (Vol. 3), 1993, Sydney, The Australian Institute of Ming and Metallurgy Clunies Ross House: 735-743

[9] WangDianzuoFlotation reagent-fundamentals and application, 1994, Beijing, Metallurgy Industrial Press: 15-16(in Chinese)

[10] ГлембоцкцйВ А, Пиккат-ОрдынскаяА П. О скорости вэаимодействия реагеНтов-собират елей с сулъфнидными минералами-В ки. Обогащеиние полеэных ископаемых М, 1960, С: 15-19

[11] YangPin, GaoXiaohuiActivity-structure-chemical bond, 1987, Beijing, High Level Education Press: 422-423(in Chinese)