Full Text Available
Note: Clicking the button above will open the full text document at the original institutional repository in a new window.
A study into the use of fatty acid and xanthate collector combination in the recovery of base metal sulphides : a holistic approach
Dissertation (MEng)--University of Pretoria, 2015.
Saved in:
| Other Authors: | |
|---|---|
| Format: | Thesis |
| Language: | English |
| Published: |
University of Pretoria
2015
|
| Subjects: | |
| Tags: |
No Tags, Be the first to tag this record!
|
| _version_ | 1867613572105764864 |
|---|---|
| access_status_str | Open Access |
| author2 | Vermaak, M.K.G. (Matthys Karel Gerhardus) |
| author_browse | Vermaak, M.K.G. (Matthys Karel Gerhardus) |
| author_facet | Vermaak, M.K.G. (Matthys Karel Gerhardus) |
| collection | Thesis |
| dc_rights_str_mv | © 2015 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Dissertation (MEng)--University of Pretoria, 2015. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/50910 |
| institution | University of Pretoria (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:38:16.420Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2015 |
| publishDateRange | 2015 |
| publishDateSort | 2015 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/50910 A study into the use of fatty acid and xanthate collector combination in the recovery of base metal sulphides : a holistic approach Vermaak, M.K.G. (Matthys Karel Gerhardus) riaan@bchem.co.za Grobler, Willem Adriaan UCTD Fatty acid Xanthate collector Base metal sulphides Holistic approach ore containing chalcopyrite Engineering, built environment and information technology theses SDG-04 SDG-04: Quality education Engineering, built environment and information technology theses SDG-09 SDG-09: Industry, innovation and infrastructure Engineering, built environment and information technology theses SDG-12 SDG-12: Responsible consumption and production Dissertation (MEng)--University of Pretoria, 2015. In this study, a collector combination between xanthate and a fatty acid collector (Betacol 364) is tested on an ore containing chalcopyrite, pentlandite and pyrrhotite. An increase in the rate of pentlandite and pyrrhotite recovery was measured when the fatty acid and xanthate combination was tested against the baseline (xanthate as sole collector), using the standard laboratory scale batch flotation test procedure. The rate of mineral recovery in a batch flotation test is not only influenced by particle floatability, but also by the amount of air bubble surface area available in the pulp and the recovery of value mineral from the flotation froth. This is given as = . . where k is the rate constant (min-1), P is a parameter which represents the floatability of a mineral, Rf is the froth recovery factor and Sb bubble surface area flux. A test unit developed for this study (based on the Bikerman foam test) indicated that the fatty acid collector used (Betacol 364) has froth stabilising characteristics and thus may have increased the froth recovery ( Rf) during the batch flotation test. The increase in the rate of pyrrhotite recovery measured can therefore not only be explained by an increase in pyrrhotite floatability. In a case where the batch flotation tests are followed by plant testing and the rate of flotation increase measured during the batch test was only or partially as a result of an increase in froth recovery ( Rf), the batch test would be an unreliable test to predict plant performance. Plant operators have many variables available to manage froth recovery ( Rf), for example pulp level and frother dosing rate. For a laboratory scale batch test to be a reliable test for predicting a rate increase in plant recovery, it is necessary that an increase in the rate of recovery will be as a result of an increase in particle floatability ( P). It is recommended that a collector batch flotation test campaign must include a test to measure if the collector has frothing characteristics. The Bikerman froth stability column is demonstrated as a possible test to measure if a collector has froth stabilising characteristics. The Bikerman froth stability column test method confirmed that the fatty acid collector tested (Betacol 364) has froth stabilising properties. Additional tests are therefore recommended to confirm that the rate of recovery increase measured is as a result of an increase in pyrrhotite and pentlandite floatability (P ). Micro flotation tests performed on pyrrhotite mineral specimens confirmed that a combination between Xanthate and Betacol 364 increases the particle floatability (P ) of pyrrhotite. Laboratory scale flotation tests performed on artificial ores, consisting of a mixture of quartz and pyrrhotite mineral specimens, confirmed that the combination of Betacol 364 and xanthate increases the floatability of pyrrhotite (P ). tm2015 mi2025 Materials Science and Metallurgical Engineering MEng Unrestricted SDG-04: Quality education SDG-09: Industry, innovation and infrastructure SDG-12: Responsible consumption and production 2015-11-25T09:54:18Z 2015-11-25T09:54:18Z 2015/09/01 2015 Dissertation Grobler, WA 2015, A study into the use of fatty acid and xanthate collector combination in the recovery of base metal sulphides : a holistic approach, MEng Dissertation, University of Pretoria, Pretoria, viewed yymmdd <http://hdl.handle.net/2263/50910> S2015 http://hdl.handle.net/2263/50910 en © 2015 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf University of Pretoria |
| spellingShingle | UCTD Fatty acid Xanthate collector Base metal sulphides Holistic approach ore containing chalcopyrite Engineering, built environment and information technology theses SDG-04 SDG-04: Quality education Engineering, built environment and information technology theses SDG-09 SDG-09: Industry, innovation and infrastructure Engineering, built environment and information technology theses SDG-12 SDG-12: Responsible consumption and production A study into the use of fatty acid and xanthate collector combination in the recovery of base metal sulphides : a holistic approach |
| title | A study into the use of fatty acid and xanthate collector combination in the recovery of base metal sulphides : a holistic approach |
| title_full | A study into the use of fatty acid and xanthate collector combination in the recovery of base metal sulphides : a holistic approach |
| title_fullStr | A study into the use of fatty acid and xanthate collector combination in the recovery of base metal sulphides : a holistic approach |
| title_full_unstemmed | A study into the use of fatty acid and xanthate collector combination in the recovery of base metal sulphides : a holistic approach |
| title_short | A study into the use of fatty acid and xanthate collector combination in the recovery of base metal sulphides : a holistic approach |
| title_sort | study into the use of fatty acid and xanthate collector combination in the recovery of base metal sulphides a holistic approach |
| topic | UCTD Fatty acid Xanthate collector Base metal sulphides Holistic approach ore containing chalcopyrite Engineering, built environment and information technology theses SDG-04 SDG-04: Quality education Engineering, built environment and information technology theses SDG-09 SDG-09: Industry, innovation and infrastructure Engineering, built environment and information technology theses SDG-12 SDG-12: Responsible consumption and production |
| url | http://hdl.handle.net/2263/50910 |