Study of Double-reverse Flotation Process of Collophanite with a Cyclonic-static Microbubble Flotation Column
CAO Yi-jun
LI Guo-sheng
LIU Jiong-tian
DENG Li-jun
WANG Yong-tian
Abstract：Double-reverse flotation process with a cyclonic-static microbubble flotation column was studied in the laboratory to separate the phosphate rock containing silica and calcia that ex-ist in Yunan China. The sulfuric acid and phosphoric acid were used as depressant, PA-64 which is similar to fatty acid as collector of carbonate minerals, GE-601 which is similar to laurylamine as collector of silicate minerals, the effects of several parameters including grinding size, the dosage of flotation reagents and the pressure of circulating pump on the flotation effi-ciency were investigated. The results indicate that the phosphate concentrate containing P_2O_5 of 30.49%, MgO of 0.73% and phosphate recovery of 81.03% were achieved using a cyclonic-static micro-bubble flotation column double-reverse flotation process. The flotation technologi-cal flowsheet for separating collophanite is shortened obviously.
Keywords：cyclonic-static micro-bubble flotation columncollophanitedouble-reverse flota-tion
Publication Date：2009-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 824-828 )