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Recovery of Apatite From Ore Slimes Using Centrifugal Heavy Liquid Separation

  • Mahmut AltinerEmail author
Recycling Methods for Industrial Metals and Minerals
  • 13 Downloads

Abstract

The aim of this study is to determine the feasibility of using a centrifugal heavy medium separation (CHMS) method to obtain apatite concentrates from ore slimes (particle size < 45 µm, 4.5% P2O5). The effects of the specific gravity, centrifugal speed, and time on the P2O5 content of the product and its recovery were investigated based on the Box–Behnken approach. X-ray fluorescence (XRF) spectroscopy, x-ray diffraction (XRD) analysis, and thermogravimetric (TG) analyses were performed to evaluate the properties of the product. The experimental findings indicate that each experimental parameter had a strong effect on the recovery of P2O5 from the ore slimes. The final product consisted mainly of hydroxyapatite along with aragonite, while its P2O5 content exceeded 30% P2O5, with recovery of 99.81%. The minor element ratio and CaO/P2O5 ratio were found to be 0.02 and 1.66, respectively. These values meet industrial requirements.

Notes

Acknowledgements

This study was supported by Çukurova University. The author would like to thank Dr. Turan Yılmaz for permitting use of laboratory centrifugal equipment in his laboratory and Dr. Fatih Karaoğlan for providing heavy medium liquid.

Funding

Funding was provided by Çukurova Üniversitesi (FBA-2019-10123).

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Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  1. 1.Department of Mining EngineeringÇukurova UniversityBalcali, Saricam/AdanaTurkey

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