{"id":{"repo_id":"cape-town","oai_identifier":"oai:open.uct.ac.za:11427/5442"},"canonical_url":"https://search.dev.ndltd.org/etd/cape-town/oai:open.uct.ac.za:11427/5442","repository":{"repo_id":"cape-town","name":"University of Cape Town","base_url":"https://open.uct.ac.za/oai/request"},"display":{"title":"Exploration of the mechanism of rhodium(III) co-precipitation with copper sulfide (at low rhodium concentrations) incorporating the cationic substitution reaction path","abstract":"This study is a preliminary investigation into the mechanism and kinetics of Rh3+ coprecipitation with CuS upon aqueous thiosulphate addition to acidic base metal sulphate solutions, where Rh3+ concentration is two orders of magnitude lower than Cu2+, over 50 - 150 °C. The heterogeneous cationic substitution has been identified as a new precipitation path in metal sulfide co-precipitation, namely, the reaction between more soluble, co-precipitated metal sulphide (CuS) and the less soluble cation in solution (Rh3+), with the large KSP difference providing the chemical driving force.","abstract_html":"This study is a preliminary investigation into the mechanism and kinetics of Rh3+ coprecipitation with CuS upon aqueous thiosulphate addition to acidic base metal sulphate solutions, where Rh3+ concentration is two orders of magnitude lower than Cu2+, over 50 - 150 °C. The heterogeneous cationic substitution has been identified as a new precipitation path in metal sulfide co-precipitation, namely, the reaction between more soluble, co-precipitated metal sulphide (CuS) and the less soluble cation in solution (Rh3+), with the large KSP difference providing the chemical driving force.","abstract_has_math":false,"creators":["McGeorge, Barry"],"institution":"Department of Chemical Engineering","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Lewis, Alison Emslie"],"committee_chairs":[],"committee_members":[],"year":2007,"date_issued":"2007","date_published":"2007","updated_at":"2026-07-22T22:22:44Z","subjects":[],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/11427/5442","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Lewis, Alison Emslie"]},{"key":"dc:creator","label":"Author","values":["McGeorge, Barry"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2014-07-31T11:16:39Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2014-07-31T11:16:39Z"]},{"key":"dc:date.issued","label":"Date","values":["2007"]},{"key":"dc:publisher.department","label":"Dc Publisher Department","values":["Department of Chemical Engineering"]},{"key":"dc:publisher.institution","label":"Dc Publisher Institution","values":["University of Cape Town"]},{"key":"dc:type","label":"Dc Type","values":["Master Thesis"]},{"key":"dc:type.qualificationlevel","label":"Dc Type Qualificationlevel","values":["Masters"]},{"key":"dc:type.qualificationname","label":"Dc Type Qualificationname","values":["MSc"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["eng"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/11427/5442"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Includes abstract.","Includes bibliographical references."]},{"key":"dc:description.abstract","label":"Abstract","values":["This study is a preliminary investigation into the mechanism and kinetics of Rh3+ coprecipitation with CuS upon aqueous thiosulphate addition to acidic base metal sulphate solutions, where Rh3+ concentration is two orders of magnitude lower than Cu2+, over 50 - 150 °C. The heterogeneous cationic substitution has been identified as a new precipitation path in metal sulfide co-precipitation, namely, the reaction between more soluble, co-precipitated metal sulphide (CuS) and the less soluble cation in solution (Rh3+), with the large KSP difference providing the chemical driving force."]},{"key":"dc:title","label":"Title","values":["Exploration of the mechanism of rhodium(III) co-precipitation with copper sulfide (at low rhodium concentrations) incorporating the cationic substitution reaction path"]}]}],"canonical_facts":{"dc:contributor.advisor":["Lewis, Alison Emslie"],"dc:creator":["McGeorge, Barry"],"dc:date.accessioned":["2014-07-31T11:16:39Z"],"dc:date.available":["2014-07-31T11:16:39Z"],"dc:date.issued":["2007"],"dc:description":["Includes abstract.","Includes bibliographical references."],"dc:description.abstract":["This study is a preliminary investigation into the mechanism and kinetics of Rh3+ coprecipitation with CuS upon aqueous thiosulphate addition to acidic base metal sulphate solutions, where Rh3+ concentration is two orders of magnitude lower than Cu2+, over 50 - 150 °C. The heterogeneous cationic substitution has been identified as a new precipitation path in metal sulfide co-precipitation, namely, the reaction between more soluble, co-precipitated metal sulphide (CuS) and the less soluble cation in solution (Rh3+), with the large KSP difference providing the chemical driving force."],"dc:identifier.uri":["http://hdl.handle.net/11427/5442"],"dc:language.iso":["eng"],"dc:publisher.department":["Department of Chemical Engineering"],"dc:publisher.institution":["University of Cape Town"],"dc:title":["Exploration of the mechanism of rhodium(III) co-precipitation with copper sulfide (at low rhodium concentrations) incorporating the cationic substitution reaction path"],"dc:type":["Master Thesis"],"dc:type.qualificationlevel":["Masters"],"dc:type.qualificationname":["MSc"]},"updated_at":"2026-07-22T22:22:44Z"}