Influences of Grinding on the Classification and Enrichment of Vanadium in Stone Coal

Grinding, as an important preparation step for beneficiation is very necessary to study for the finely disseminated extent, vanadium-bearing stone coal with complex chemical composition. In this paper, grinding medium, time, degree and monomer dissociation degree were investigated in detail. The res...

Full description

Saved in:
Bibliographic Details
Published in:Journal of mining science 2019-09, Vol.55 (5), p.849-856
Main Authors: Ren, Liuyi, Zeng, Weineng, Rong, Xiaojie, Wang, Qi, Zeng, Shanglin
Format: Article
Language:English
Subjects:
Analysis
Ball milling
Beneficiation
Chemical composition
Classification
Coal
Comminution
Dissociation
Earth and Environmental Science
Earth Sciences
Enrichment
Fine grinding
Geophysics/Geodesy
Geotechnical Engineering & Applied Earth Sciences
Grinding mills
Mineral Dressing
Mineral Resources
Monomers
Rod milling
Rod mills (grinding)
Stone
Vanadium
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Grinding, as an important preparation step for beneficiation is very necessary to study for the finely disseminated extent, vanadium-bearing stone coal with complex chemical composition. In this paper, grinding medium, time, degree and monomer dissociation degree were investigated in detail. The results show that the efficiency of rod milling is better than that of ball milling, especially the proportion of −0.038 mm size fraction obtained by rod milling is 10.89% higher than ball milling. The grinding degree of 8 min rod mill is −74 µm 73.19%, then the proportion of monomer is 70.68%. MLA measurement shows that roscoelite can not be dissociated by fine grinding. Vanadium concentrate with 0.97% of the grade and 89.88% of recovery was obtained by classification and shaking table technology. Tailing rate is 18.82%. The enrichment of vanadium can be realized by reasonable grinding and classification.
ISSN:1062-7391
1573-8736
DOI:10.1134/S1062739119056222