Pyrite Depression in Marmatite Flotation by a New Depressant Sodium Glycerine-xanthate
The depression of pyrite in marmatite flotation by a new depressant Sodium Glycerine-xanthate (SGX) has been investigated through microflotation, zeta potential, and adsorption measurements in systems open to the atmosphere. The flotation tests of single mineral show that in the presence of SGX, marmatite can be activated by Cu2+ and shows good flotability, while pyrite cant be activated and therefore shows poor flotability, as a result these two minerals can be separated using butyl xanthate as the collector. The depression mechanism of SGX on sulfide minerals is discussed based on Zeta potential and adsorption isotherm. Zeta potential experiments demonstrate that at the presence of Cu2+, SGX can strongly adsorb on the surface of pyrite, while it cant adsorb on the surface of marmatite, thus the results are in accordance with those of flotation experiments; the results of adsorption isotherms show that the adsorption density of SGX on pyrite is greater.
Flotation Sodium Glycerine-xanthate Marmatite Pyrite Adsorption isotherms Zeta potential
M. F. He W. Q. Qin W. Z. Li Y. P. Chen W. Z. Huang X. S. Mo
School of Minerals Processing & Bioengineering, Central South University, Changsha, China MengZi Mining & Metallurgy Corporation, Yunnan, China
国际会议
XXIV International Mineral Processing Congress(第24届国际矿物加工大会)
北京
英文
1568-1573
2008-09-24（万方平台首次上网日期，不代表论文的发表时间）