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[{"key": "dc.contributor.advisor", "value": "V\u00e4is\u00e4nen, Ari", "language": null, "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Rajahalme, Joona", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2017-06-19T07:56:14Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2017-06-19T07:56:14Z", "language": null, "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:1703883", "language": null, "element": "identifier", "qualifier": "other", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/54550", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Tutkielman kirjallisessa osassa k\u00e4yd\u00e4\u00e4n l\u00e4pi yleisesti kiertotaloutta ja metallien osuutta kiertotaloudessa. Lis\u00e4ksi kirjallisessa osassa keskityt\u00e4\u00e4n s\u00e4hk\u00f6- ja elektroniikkaromun kasvavaan m\u00e4\u00e4r\u00e4\u00e4n ja sen kierr\u00e4tyksen t\u00e4rkeyteen sek\u00e4 kierr\u00e4tyksen ongelmiin. Ty\u00f6ss\u00e4 k\u00e4yd\u00e4\u00e4n l\u00e4pi yleiset kullan talteenottotavat, hydrometallurgia, pyrometallurgia sek\u00e4 fysikaalinen ja mekaaninen erottelu, joita on tutkittu s\u00e4hk\u00f6 ja elektroniikkaromun kierr\u00e4tykseen. My\u00f6s yleisimm\u00e4t kullan analysoinnissa k\u00e4ytetyt menetelm\u00e4t k\u00e4yd\u00e4\u00e4n l\u00e4pi kirjallisen osan loppuvaiheessa. \n\nKullan talteenotolle kehitettiin menetelm\u00e4, jonka avulla kulta pystyttiin ottamaan talteen jopa yli 99 % puhtaudella ja 60\u201370 % saannoilla liuotetusta kullasta. Menetelm\u00e4ss\u00e4 termisesti k\u00e4sitelty piirilevymurska liuotettiin kaksivaiheisesti, ensin typpihappoon, jonka j\u00e4lkeen j\u00e4\u00e4nn\u00f6s liuotettiin viel\u00e4 kuningasveteen. Kultapitoiselle kuningasvesiliuokselle toteutettiin neste/nesteuutot dibutyylikarbitolilla, jonka j\u00e4lkeen orgaaninen faasi pestiin laimealla vetykloridilla ep\u00e4puhtauksien v\u00e4hent\u00e4miseksi. Lopuksi kulta pelkistettiin orgaanisesta faasista askorbiinihappoliuoksella.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Joona Rajahalme (joperaja) on 2017-06-19 07:56:13.587417. 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 2017-06-19T07:56:14Z\nNo. of bitstreams: 2\nURN:NBN:fi:jyu-201706192937.pdf: 1351607 bytes, checksum: 27c90dc5060c37a37d8cf623caf2bff4 (MD5)\nlicense.html: 4811 bytes, checksum: 229f43db85a68cd619952468b3c41760 (MD5)", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2017-06-19T07:56:14Z (GMT). No. of bitstreams: 2\nURN:NBN:fi:jyu-201706192937.pdf: 1351607 bytes, checksum: 27c90dc5060c37a37d8cf623caf2bff4 (MD5)\nlicense.html: 4811 bytes, checksum: 229f43db85a68cd619952468b3c41760 (MD5)\n Previous issue date: 2017", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "1 verkkoaineisto (86 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": "Kulta", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "Talteenotto", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "Neste/nesteuutot", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "Hydrometallurgia", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "S\u00e4hk\u00f6- ja elektroniikkaromu", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Kullan talteenotto s\u00e4hk\u00f6- ja elektroniikkaromusta", "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-201706192937", "language": null, "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": 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