Superabsorbent-mediated dewaterability of fine hydrophobic sulphide mineral slurries

This work investigates superabsorbent (SAB) polymer application to dewatering of fine pyrite (P) and chalcopyrite (CP) mineral slurries. The results showed that significant pulp water absorption, reflecting dramatic dewatering and hence, compact sediment consolidation (up to 80 wt%), may be achieved...

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Bibliographic Details
Published in:	Separation science and technology Vol. 54; no. 18; pp. 3055 - 3069
Main Authors:	Joseph Soly, Sophia, Nosrati, Ataollah, Skinner, William, Addai-Mensah, Jonas
Format:	Journal Article
Language:	English
Published:	Abingdon Taylor & Francis 12-12-2019 Taylor & Francis Ltd
Subjects:	Absorption Chalcopyrite consolidation Dewatering hydrophobic sulphide mineral slurries Hydrophobicity Polymers Pyrite Recovering Regeneration Regeneration (biological) Slurries Sulfides Sulphide minerals Sulphides superabsorbent Water absorption
Online Access:	Get full text
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Summary:	This work investigates superabsorbent (SAB) polymer application to dewatering of fine pyrite (P) and chalcopyrite (CP) mineral slurries. The results showed that significant pulp water absorption, reflecting dramatic dewatering and hence, compact sediment consolidation (up to 80 wt%), may be achieved within 15 min of contact time. The rate of slurry water absorption increased with both decreasing SAB particle size and initial slurry solid loading. The SAB dewatering performance was higher for the CP than the P slurry. SAB regeneration and re-use investigations showed that multiple recycle and greater water recovery can be achieved with a given sample.
ISSN:	0149-6395 1520-5754
DOI:	10.1080/01496395.2019.1565771