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[{"key": "dc.contributor.advisor", "value": "V\u00e4is\u00e4nen, Ari", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Korhonen, Essi", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2018-01-03T19:08:08Z", "language": "", "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2018-01-03T19:08:08Z", "language": "", "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2017", "language": null, "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.other", "value": "oai:jykdok.linneanet.fi:1809840", "language": null, "element": "identifier", "qualifier": "other", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/56590", "language": "", "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Tutkielmassa ka\u0308sitella\u0308a\u0308n rikkihapon ka\u0308ytto\u0308a\u0308 sa\u0308hko\u0308- ja elektroniikkaromuun kuuluvan piirilevyja\u0308tteen liuotuksessa ja rikkihappoon liuenneiden metallien talteenottoa erilaisin menetelmin. Sa\u0308hko\u0308- ja elektroniikkaromu on pian maailman suurimmaksi kasvava ja\u0308tevirta, jolla on seka\u0308 ympa\u0308risto\u0308llisia\u0308 etta\u0308 taloudellisia vaikutuksia, jos romun sisa\u0308lta\u0308mia\u0308 metalleja ei saada kierra\u0308tettya\u0308. Elektroniikkalaitteiden piirilevyt sisa\u0308lta\u0308va\u0308t noin 60 % metalleja, joiden talteenottamiseksi on la\u0308hiaikoina tehty paljon tutkimusta. Piirilevyjen sisa\u0308lta\u0308mia\u0308 arvokkaita metalleja ovat erityisesti kulta, hopea, palladium ja platina. Rikkihappo on yleisin teollisuudessa ka\u0308ytetty happoliuotin, joka liuottaa hyvin varsinkin kuparia. Rikkihappoliuotus kuuluu hydrometallurgisiin menetelmiin, jotka ovat taloudellisia verrattuna paljon ka\u0308ytettyihin pyrometallurgisiin menetelmiin. Rikkihaposta voidaan talteenottaa metalleja monenlaisilla menetelmilla\u0308 kuten elektrolyysilla\u0308, metallisieppareilla, ioninvaihtajilla ja neste-nesteuutoilla.\r\n\r\nPiirilevyjen sisa\u0308lta\u0308mien metallien talteenottamiseksi ollaan kehitta\u0308ma\u0308ssa\u0308 kolmivaiheista liuotusprosessia, jossa saataisiin tehokkaasti talteen piirilevyjen sisa\u0308lta\u0308ma\u0308t metallit kuten kulta, hopea, palladium ja kupari. Prosessin ensimma\u0308isessa\u0308 vaiheessa pyrita\u0308a\u0308n liuottamaan mahdollisimman paljon kuparista rikkihappoon, toisessa vaiheessa muun muassa hopea ja palladium typpihappoon, ja viimeisessa\u0308 vaiheessa kulta ja ja\u0308ljelle ja\u0308a\u0308neet metallit kuningasveteen. Ta\u0308ssa\u0308 tutkimusprojektissa pyrittiin optimoimaan prosessin ensimma\u0308inen vaihe eli rikkihappoliuotus. Lisa\u0308ksi tutkittiin kuparin talteenottoa rikkihappoliuoksesta elektrolyyttisesti seka\u0308 hopean ja palladiumin talteenottoa metallisieppareiden avulla.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Essi Korhonen (esemkorh) on 2018-01-03 19:08:02.140241. Form: Pro gradu -lomake (https://kirjasto.jyu.fi/julkaisut/julkaisulomakkeet/pro-gradu-lomake). JyX data: [jyx_publishing-allowed (fi) =True]", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by jyx lomake-julkaisija (jyx-julkaisija.group@korppi.jyu.fi) on 2018-01-03T19:08:08Z\r\nNo. of bitstreams: 2\r\nURN:NBN:fi:jyu-201801031044.pdf: 32342444 bytes, checksum: 9093a5867bda763a444bf52dc1de1205 (MD5)\r\nlicense.html: 4818 bytes, checksum: 32cb1ea22aff444663cb847501c3700b (MD5)", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2018-01-03T19:08:08Z (GMT). No. of bitstreams: 2\r\nURN:NBN:fi:jyu-201801031044.pdf: 32342444 bytes, checksum: 9093a5867bda763a444bf52dc1de1205 (MD5)\r\nlicense.html: 4818 bytes, checksum: 32cb1ea22aff444663cb847501c3700b (MD5)\r\n Previous issue date: 2017", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "1 verkkoaineisto (90 sivua)", "language": null, "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": "WEEE", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "metallisiepparit", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Kuparin, hopean ja palladiumin talteenotto piirilevyj\u00e4tteest\u00e4", "language": null, "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-201801031044", "language": null, "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": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "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": "dc.date.updated", "value": "2018-01-03T19:08:09Z", "language": "", "element": "date", "qualifier": "updated", "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": "fi", "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": null, "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": "s\u00e4hk\u00f6- ja elektroniikkaromu", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "piirilevyt", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "jalometallit", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "kupari", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "hopea", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "palladium", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "talteenotto", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "erottaminen (tekniikka)", "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": "rikkihappo", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "elektrolyysi", "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", 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