Next Article in Journal
Efficient Extraction of Vanadium from Vanadium–Titanium Magnetite Concentrate by Potassium Salt Roasting Additives
Next Article in Special Issue
Copper Bioleaching in China: Review and Prospect
Previous Article in Journal
Liquid Cell Transmission Electron Microscopy and the Impact of Confinement on the Precipitation from Supersaturated Solutions
Previous Article in Special Issue
Co-Bioleaching of Chalcopyrite and Silver-Bearing Bornite in a Mixed Moderately Thermophilic Culture
Article Menu
Issue 1 (January) cover image

Export Article

Open AccessArticle
Minerals 2018, 8(1), 24; doi:10.3390/min8010024

Vanadium Bioleaching Behavior by Acidithiobacillus ferrooxidans from a Vanadium-Bearing Shale

1,2,3
,
1,2,3,* , 1,2,3,4
,
1,2,3
,
1,2,3
and
1,2,3
1
School of Resources and Environment Engineering, Wuhan University of Science and Technology, Wuhan 430081, Hubei, China
2
Hubei Provincial Engineering Technology Research Center of High Efficient Cleaning Utilization for Shale Vanadium Resource, Wuhan 430081, Hubei, China
3
Hubei Collaborative Innovation Center for High Efficient Utilization of Vanadium Resources, Wuhan 430081, Hubei, China
4
School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, Hubei, China
*
Author to whom correspondence should be addressed.
Received: 15 November 2017 / Revised: 2 January 2018 / Accepted: 11 January 2018 / Published: 15 January 2018
(This article belongs to the Collection Bioleaching)
View Full-Text   |   Download PDF [11684 KB, uploaded 15 January 2018]   |  

Abstract

This study investigated bioleaching behavior of vanadium from a vanadium-bearing shale using Acidithiobacillus ferrooxidans (A. ferrooxidans). Results showed a maximum recovery of 62% vanadium in 1.2-day bioleaching, which was 22.45% higher than the controls. Then, the vanadium leaching efficiency decreased significantly, only 24% of that was obtained on the tenth day. The vanadium extraction in 1.2 days was mainly attributed to the dissolution of vanadium in free oxides of shale. Fe3+ produced by A. ferrooxidans promoted the dissolution process. X-ray diffraction (XRD) patterns of the leached residues confirmed the generation of jarosite. SEM-EDS analysis of the residues indicated that jarosite adsorbed on the shale and inhibited the further dissolution of vanadium. The relevance of V, Fe, S, O was quite good in the energy disperse X-ray spectrometry (EDS) element mapping of jarosite, and acid-washing of the jarosite resulted in 31.6% of the vanadium in the precipitates desorption, indicating that the decrease of vanadium leaching efficiency in bioleaching process was caused by both adsorption and co-precipitation with jarosite. View Full-Text
Keywords: bioleaching; vanadium-bearing shale; jarosite; Acidithiobacillus ferrooxidans bioleaching; vanadium-bearing shale; jarosite; Acidithiobacillus ferrooxidans
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 alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Wei, D.; Liu, T.; Zhang, Y.; Cai, Z.; He, J.; Xu, C. Vanadium Bioleaching Behavior by Acidithiobacillus ferrooxidans from a Vanadium-Bearing Shale. Minerals 2018, 8, 24.

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