Recovery of chromite values from tailings of COB plant using enhanced gravity concentrator
IR@NML: CSIR-National Metallurgical Laboratory, Jamshedpur
View Archive InfoField | Value | |
Title |
Recovery of chromite values from tailings of COB plant using enhanced gravity concentrator
|
|
Creator |
Rath, R K
Dey, Bulti Mohanta, M K Prusty, L K Singh, Ratnakar |
|
Subject |
Minerals and Mining
|
|
Description |
In world scenario, India is ranked third largest producer of chromite ore. Odisha Mining Corporation Ltd.
is operating a chromite ore beneficiation (COB) plant with a capacity of 0.15 mtpa. The process route
basically involves comminution, classification followed by gravity separation. The present plant practice
generates tailings with some chromite values associated with it. In the present study, an attempt was made
to recover chromite values from the tailings using enhanced gravity separator such as Falcon
concentrator, a high g-force generating equipment. The tailing sample is very fine grained in nature and
contains significant amount (~68 Wt.%) of particle below 11 μm. The chemical analysis of head sample
shows a value of 20.23% Cr2O3. Mineralogical study revealed that chromite is the major chromite bearing
mineral and clay, gibbsite and spinel are the major gangue minerals present in the material. The process
parameters are optimised with respect to feed particle size, bowl rotation speed and the back water flow
rate. It was observed that high rotation of the bowl and high back water flow rate favour generating a
clean concentrate with Cr2O3 more than 40% with >68% recovery.
|
|
Date |
2017
|
|
Type |
Conference or Workshop Item
PeerReviewed |
|
Format |
application/pdf
|
|
Identifier |
http://eprints.nmlindia.org/7726/1/RKRath_NML_FULL_MPT_2017.pdf
Rath, R K and Dey, Bulti and Mohanta, M K and Prusty, L K and Singh, Ratnakar (2017) Recovery of chromite values from tailings of COB plant using enhanced gravity concentrator. In: International Conference on Mineral Processing Technology (MPT-2017), 2017, Mahabalipuram, Chennai. |
|
Relation |
http://www.nmlindia.org
http://eprints.nmlindia.org/7726/ |
|