Flotation Recovery of Rutile from Low Grade Ores
The ore, dealt with in this paper, is a certain rutile in Shanxi province, China. A trunk flowsheet with gravity concentration is used, and the TiO2 grade of rutile concentrate is about 90%, but the TiO2 recovery is less than 50%. In order to increase the rutile recovery, the laboratory test, using the truck flowsheet with flotation, is carried out. The flowsheet is that firstly floatable gangue is removed by flotation; secondly rutile is recovered by flotation; and thirdly impurity is separated by LIMS, HIMS, gravity concentration and flotation from the rutile concentrate. In rutile flotation,BK423, a phosphonic acid, is used as rutile collector, and Na2SiF6 is used as silicates depressant.The experimental result shows that the recovery of rutile concentrate is improved obviously, and the recovery of ultimate rutile concentrate is 68.01% TiO2 and 84.88% rutile. The TiO2 grade of first concentrate is 95.98%, and the TiO2 recovery is 45.60%. The TiO2 grade of second concentrate is 80.53%, and the recovery is 22.41%. Furthermore, magnetite and ilmenite are recovered in the flowsheet.
Rutile flotation Phosphonic acid Na2SiF6
A. J. Ren G. B. Zheng
University of Science and Technology, Beijing, china Beijing General Research Institute of Mining & Beijing General Research Institute of Miniag of Metallurgy, State Key Laboratory of Mineral Processi
国际会议
XXIV International Mineral Processing Congress(第24届国际矿物加工大会)
北京
英文
1366-1371
2008-09-24(万方平台首次上网日期,不代表论文的发表时间)