Separation behavior and mechanism of hematite and collophane in the presence of collector RFP-138
(1. School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China;
2. Changsha Research Institute of Mining and Metallurgy Co., Ltd., Changsha 410012, China;)
2. Changsha Research Institute of Mining and Metallurgy Co., Ltd., Changsha 410012, China;
Abstract: The reverse flotation separation performance and mechanism of hematite and cellophane in the presence of RFP-138, a newly synthesized dephosphorization collector, were studied. Reverse flotation tests on monominerals and artificially mixed minerals of hematite and collophanite show that, this anionic collector performs excellently in reducing the phosphorus content in hematite. It can decrease the content of P in artificially mixed minerals from 1.05% to 0.12% and achieve the TFe recovery rate of 91.30%. The chemical behavior of solution and infrared spectra of RFP-138 were investigated to explore the selective collecting mechanism of RFP-138 to these two minerals.
Key words: hematite; collophane; reverse flotation separation; dephosphorization; dephosphorization collector