Recovery of platinum group metals from waste sources

1643 17 40591 6 93518 document 40591 Taylor12MPhil.pdf application/pdf c8186070252cac82c21af73a1d5b6c3c MD5 8195963 2014-12-15 19:22:04 http://etheses.bham.ac.uk//id/eprint/1643/1/Taylor12MPhil.pdf 1643 1 1 application/pdf application/pdf en public

Taylor12MPhil.pdf

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http://eprints.org/relation/isVersionOf http://etheses.bham.ac.uk/id/document/40591 http://eprints.org/relation/isVolatileVersionOf http://etheses.bham.ac.uk/id/document/40591 http://eprints.org/relation/isIndexCodesVersionOf http://etheses.bham.ac.uk/id/document/40591 archive 4031 disk0/00/00/16/43 2014-12-15 19:25:28 2019-01-23 09:54:34 2014-12-15 19:25:28 thesis show 0 Taylor Scott Blackburn Stuart Macaskie Lynne E University of Birmingham Recovery of platinum group metals from waste sources unpub TN TP 10col_ephy Was embargoed, now Option C until 31 December 2016 The metal recovering abilities of cells which are “pre-loaded” with either Pd or Pt metals are well documented and known to work well. This study prepared several different batches of “pre-loaded” cells produced using identical methodologies to identify which combination of metal and wt% loading offered the optimum for metal recovery from solution and afterwards offered the highest catalytic activity. Recovery of metals from model solutions showed that all loadings for both Pt and Pd achieved recovery of 100% of the mixed Pd and Pt contained within solution in near identical times. To highlight the optimum pre-loading catalytic testing in the form of chromate Cr(VI) reduction was carried out which showed that cells using an initial pre-loading of 2wt% Pd were found to offer the optimum activity and recovery properties. Further independent testing of cells using an initial pre-loading of 2wt% Pd in a 2 Pentyne hydrogenation reaction again showed them to offer optimum catalytic activity. The other aspect of the recovery process investigated was that of a model road dust system, several different techniques were used to imitate the manufacture of TWC’s (three way catalytic converters) to aid in producing an accurate model for a road dust. Using SEM, EDX and XRD analysis a production method involving the extrusion of an alumina wash coat material impregnated with Pt solution was seen to offer the best model of a real catalyst. 2012-12 2011-10 graduation eng author unchecked This unpublished thesis/dissertation is copyright of the author and/or third parties. The intellectual property rights of the author or third parties in respect of this work are as defined by The Copyright Designs and Patents Act 1988 or as modified by any successor legislation. Any use made of information contained in this thesis/dissertation must be in accordance with that legislation and must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the permission of the copyright holder. public 117 University of Birmingham School of Chemical Engineering m_ph na 2012-12 graduation