{"id":{"repo_id":"cape-town","oai_identifier":"oai:open.uct.ac.za:11427/5366"},"canonical_url":"https://search.dev.ndltd.org/etd/cape-town/oai:open.uct.ac.za:11427/5366","repository":{"repo_id":"cape-town","name":"University of Cape Town","base_url":"https://open.uct.ac.za/oai/request"},"display":{"title":"Effect of operating conditions on product quality in continuous eutectic freeze crystallization","abstract":"The efficiency of gravitational separation in a staged continuous Eutectic Freeze Crystallization process is largely influenced by the quality of solid products exiting the crystallizer. The particle size distribution and shape of the crystalline products affect the efficiency of the washing and filtration steps hence the ultimate purity of the product water and or salts. These characteristics are the net effect of the crystallizer operating conditions such as the level of supersaturation, residence time and magma density. In order to control the mentioned product characteristics, the mechanistic interaction of crystallizer operating conditions and product morphology and size needs to be understood. This work was aimed at investigating the effect of residence time and supersaturation on the product quality in continuous Eutectic Freeze Crystallization and a 2L glass crystallizer equipped with scrapers was employed for the investigations.","abstract_html":"The efficiency of gravitational separation in a staged continuous Eutectic Freeze Crystallization process is largely influenced by the quality of solid products exiting the crystallizer. The particle size distribution and shape of the crystalline products affect the efficiency of the washing and filtration steps hence the ultimate purity of the product water and or salts. These characteristics are the net effect of the crystallizer operating conditions such as the level of supersaturation, residence time and magma density. In order to control the mentioned product characteristics, the mechanistic interaction of crystallizer operating conditions and product morphology and size needs to be understood. This work was aimed at investigating the effect of residence time and supersaturation on the product quality in continuous Eutectic Freeze Crystallization and a 2L glass crystallizer equipped with scrapers was employed for the investigations.","abstract_has_math":false,"creators":["Chivavava, Jemitias"],"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":2013,"date_issued":"2013","date_published":"2013","updated_at":"2026-07-22T22:22:57Z","subjects":[],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/11427/5366","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":["Chivavava, Jemitias"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2014-07-31T11:13:12Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2014-07-31T11:13:12Z"]},{"key":"dc:date.issued","label":"Date","values":["2013"]},{"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/11427/5366"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Includes summary.","Includes bibliographical references."]},{"key":"dc:description.abstract","label":"Abstract","values":["The efficiency of gravitational separation in a staged continuous Eutectic Freeze Crystallization process is largely influenced by the quality of solid products exiting the crystallizer. The particle size distribution and shape of the crystalline products affect the efficiency of the washing and filtration steps hence the ultimate purity of the product water and or salts. These characteristics are the net effect of the crystallizer operating conditions such as the level of supersaturation, residence time and magma density. In order to control the mentioned product characteristics, the mechanistic interaction of crystallizer operating conditions and product morphology and size needs to be understood. This work was aimed at investigating the effect of residence time and supersaturation on the product quality in continuous Eutectic Freeze Crystallization and a 2L glass crystallizer equipped with scrapers was employed for the investigations."]},{"key":"dc:title","label":"Title","values":["Effect of operating conditions on product quality in continuous eutectic freeze crystallization"]}]}],"canonical_facts":{"dc:contributor.advisor":["Lewis, Alison Emslie"],"dc:creator":["Chivavava, Jemitias"],"dc:date.accessioned":["2014-07-31T11:13:12Z"],"dc:date.available":["2014-07-31T11:13:12Z"],"dc:date.issued":["2013"],"dc:description":["Includes summary.","Includes bibliographical references."],"dc:description.abstract":["The efficiency of gravitational separation in a staged continuous Eutectic Freeze Crystallization process is largely influenced by the quality of solid products exiting the crystallizer. The particle size distribution and shape of the crystalline products affect the efficiency of the washing and filtration steps hence the ultimate purity of the product water and or salts. These characteristics are the net effect of the crystallizer operating conditions such as the level of supersaturation, residence time and magma density. In order to control the mentioned product characteristics, the mechanistic interaction of crystallizer operating conditions and product morphology and size needs to be understood. This work was aimed at investigating the effect of residence time and supersaturation on the product quality in continuous Eutectic Freeze Crystallization and a 2L glass crystallizer equipped with scrapers was employed for the investigations."],"dc:identifier.uri":["http://hdl.handle.net/11427/5366"],"dc:language.iso":["eng"],"dc:publisher.department":["Department of Chemical Engineering"],"dc:publisher.institution":["University of Cape Town"],"dc:title":["Effect of operating conditions on product quality in continuous eutectic freeze crystallization"],"dc:type":["Master Thesis"],"dc:type.qualificationlevel":["Masters"],"dc:type.qualificationname":["MSc"]},"updated_at":"2026-07-22T22:22:57Z"}