Effect of Variability in Feed Characteristics on Fatty Acid Flotation of Florida Phosphates
At times the phosphate industry, in Florida, encounters phosphate rock that gives lower than expected P2O5 recovery in the rougher plant section. The drop in recovery is typically 10% and as much as 30% or more. Variations in feed quality from day to day, shift to shift and even from dragline to drag line, represent a challenge to the beneficiation plant operators and reagents suppliers.Therefore, this characterization study has been initiated to identify the reasons for the differences in flotation behavior of such feeds. The study involves many samples to cover such variations. The characterization work includes:· Mineralogical and chemical analysis;· Size, shape, surface roughness and porosity analysis;· Surface charge and surface contamination with other phases (minerals);· Clay content and its relationship to phosphate and silica particles.The results correlated with flotation data and adsorption density measurements clearly establish the statistically significant variability in characteristic features that influence flotation response. This article discusses results from the above listed studies. On the basis of the obtained data, recommendations of practical approaches to overcome the problem of feed variability in phosphate flotation plants are delineated.
Phosphates Fatty acid flotation Characterization Feed variability
H. El-Shall R. Stana G. Wang P. Somasundaran M. Raslan P. Zhang
University of Florida, USA R.Squared, Inc. Lakeland ArrMaz Custom Chemicals, Mulberry Columbia University, NY. Nuclear Materials Authority, Cairo, Egypt Florida Institute of Phosphate Research, Bartow
国际会议
XXIV International Mineral Processing Congress(第24届国际矿物加工大会)
北京
英文
1891-1899
2008-09-24（万方平台首次上网日期，不代表论文的发表时间）