Next Article in Journal
Pore Structure Characterization of Shale Using Gas Physisorption: Effect of Chemical Compositions
Previous Article in Journal
Characteristics of Strata Behavior during Thick Seam Mining by Fully-Mechanized Top Coal Caving in a Loess-Covered Gullied Region
Article Menu
Issue 5 (May) cover image

Export Article

Open AccessArticle
Minerals 2017, 7(5), 65; https://doi.org/10.3390/min7050065

Ambient Temperature Flotation of Sedimentary Phosphate Ore Using Cottonseed Oil as a Collector

1
School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
2
School of Resource and Civil Engineering, Wuhan Institute of Technology, Wuhan 430073, China
3
School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430073, China
*
Author to whom correspondence should be addressed.
Academic Editor: Massimiliano Zanin
Received: 17 March 2017 / Revised: 17 April 2017 / Accepted: 18 April 2017 / Published: 26 April 2017
View Full-Text   |   Download PDF [10917 KB, uploaded 2 May 2017]   |  

Abstract

The mid-low grade sedimentary phosphate ore, abundant in silicate and carbonate gangue minerals, exhibits a poor processability. It is conventionally enriched using high temperature flotation to remove silicate gangues with fatty acid as a collector. Cottonseed oil has been proved to be an efficient collector for achieving ambient temperature flotation of the sedimentary phosphate ore used in this study. Flotation kinetics was investigated to ascertain the excellent collecting performance of cottonseed oil, as compared with oleic acid, and the phosphate flotation fitted well with the first-order flotation model. Based on the analysis of flotation reagent effect on the direct flotation process using the response surface methodology (RSM), a closed circuit of direct-reverse flotation for stepwise removing silicate and carbonate gangues from the sedimentary phosphate ore was established. Consequently, a required high quality of phosphate concentrate containing 30.16% P2O5 was obtained, with a recovery of 90.90%. Scanning electron microscopy (SEM) and X-ray diffraction analysis (XRD) of the flotation products confirmed that the majority of silicate and carbonate gangues were effectively removed from the concentrate products. View Full-Text
Keywords: cottonseed oil; sedimentary phosphate ore; flotation; ambient temperature cottonseed oil; sedimentary phosphate ore; flotation; ambient temperature
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Ruan, Y.; Zhang, Z.; Luo, H.; Xiao, C.; Zhou, F.; Chi, R. Ambient Temperature Flotation of Sedimentary Phosphate Ore Using Cottonseed Oil as a Collector. Minerals 2017, 7, 65.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Minerals EISSN 2075-163X Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top