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[{"key": "dc.contributor.advisor", "value": "Matilainen, Rose", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Roivainen, Tuomas", "language": "", "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2020-11-12T07:49:01Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2020-11-12T07:49:01Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2020", "language": "", "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/72579", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "T\u00e4m\u00e4n pro gradu -tutkielman kirjallisessa osiossa on k\u00e4sitelty harvinaisia maametalleja (REE) sek\u00e4 niiden varantoja ja tuotantoa maailmalla. Tutkielmassa k\u00e4yd\u00e4\u00e4n my\u00f6s l\u00e4pi harvinaisten maametallien jalostusta mineraaleista tuotteiksi, miss\u00e4 aihe rajataan tutkielman kokeellisen osan kannalta olennaisimpiin asioihin. Lis\u00e4ksi kerrotaan kokeellisessa osassa k\u00e4ytett\u00e4vist\u00e4 analyysimenetelmist\u00e4 sek\u00e4 analyysitulosten tilastollisesta k\u00e4sittelyst\u00e4. \nTutkielman kokeellisessa osassa pyrittiin kehitt\u00e4m\u00e4\u00e4n hydrometallurginen menetelm\u00e4 harvinaisten maametallien liuottamiseksi allaniittirikasteesta. Ty\u00f6ss\u00e4 optimoitiin rikkihappopohjainen liuotus, jolla harvinaiset maametallit onnistuttiin liuottamaan allaniittirikasteesta valtaosaltaan. Optimoinnissa s\u00e4\u00e4dettiin rikkihapon konsentraatiota, liuotusaikaa sek\u00e4 liuotusl\u00e4mp\u00f6tilaa. Parhaimmiksi liuotusparametreiksi laboratoriomittakaavassa osoittautui kaksi molaarinen rikkihappo (2 mol/dm3 H2SO4), nelj\u00e4n tunnin liuotusaika sek\u00e4 liuotus huoneenl\u00e4mp\u00f6tilassa. Ty\u00f6ss\u00e4 luotiin my\u00f6s mittausmetodi induktiivisesti kytketylle plasma-optiselle emissiospektrometrille (ICP-OES), jolla ty\u00f6n n\u00e4yteliuokset pystyttiin mittaamaan. \nLis\u00e4ksi ty\u00f6ss\u00e4 ennakoivasti tutkittiin, olisiko laserin aiheuttama fluoresenssi (LIF) k\u00e4ytt\u00f6kelpoinen menetelm\u00e4 liuotussakkojen REE-pitoisuuksien nopeaan analysointiin. Tulosten perusteella LIF vaikuttaa potentiaaliselta menetelm\u00e4lt\u00e4 liuotussakkojen REE-pitoisuuksien nopeaksi semikvantitatiiviseksi analyysimenetelm\u00e4ksi.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Paivi Vuorio (paelvuor@jyu.fi) on 2020-11-12T07:49:01Z\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2020-11-12T07:49:01Z (GMT). No. of bitstreams: 0\n Previous issue date: 2020", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "93", "language": "", "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.format.mimetype", "value": "application/pdf", "language": null, "element": "format", "qualifier": "mimetype", "schema": "dc"}, {"key": "dc.language.iso", "value": "fin", "language": null, "element": "language", "qualifier": "iso", "schema": "dc"}, {"key": "dc.rights", "value": "In Copyright", "language": "en", "element": "rights", "qualifier": null, "schema": "dc"}, {"key": "dc.subject.other", "value": "ICP-OES", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "REE", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "LIF", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "allaniitti", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Hydrometallurgisen menetelm\u00e4n kehitt\u00e4minen harvinaisten maametallien liuotukseen allaniittirikasteesta", "language": "", "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "master thesis", "language": null, "element": "type", "qualifier": null, "schema": "dc"}, {"key": "dc.identifier.urn", "value": "URN:NBN:fi:jyu-202011126613", "language": "", "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Pro gradu -tutkielma", "language": "fi", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Master\u2019s thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Matemaattis-luonnontieteellinen tiedekunta", "language": "fi", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Faculty of Sciences", "language": "en", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Kemian laitos", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Department of Chemistry", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Ep\u00e4orgaaninen ja analyyttinen kemia", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Inorganic and Analytical Chemistry", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "yvv.contractresearch.funding", "value": "0", "language": "", "element": "contractresearch", "qualifier": "funding", "schema": "yvv"}, {"key": "dc.type.coar", "value": "http://purl.org/coar/resource_type/c_bdcc", "language": null, "element": "type", "qualifier": "coar", "schema": "dc"}, {"key": "dc.rights.accesslevel", "value": "openAccess", "language": null, "element": "rights", "qualifier": "accesslevel", "schema": "dc"}, {"key": "dc.type.publication", "value": "masterThesis", "language": null, "element": "type", "qualifier": "publication", "schema": "dc"}, {"key": "dc.subject.oppiainekoodi", "value": "4031", "language": "", "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "hydrometallurgia", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "harvinaiset maametallit", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "liuotus", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "mineraalit", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "rikkihappo", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.format.content", "value": "fulltext", "language": null, "element": "format", "qualifier": "content", "schema": "dc"}, {"key": "dc.rights.url", "value": "https://rightsstatements.org/page/InC/1.0/", "language": null, "element": "rights", "qualifier": "url", "schema": "dc"}, {"key": "dc.type.okm", "value": "G2", "language": null, "element": "type", "qualifier": "okm", "schema": "dc"}]
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