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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": "Anttila, Johanna", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2016-05-24T13:37:45Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2016-05-24T13:37:45Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2016", "language": null, "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.other", "value": "oai:jykdok.linneanet.fi:1542072", "language": null, "element": "identifier", "qualifier": "other", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/49908", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "T\u00e4ss\u00e4 Pro gradu -tutkielmassa k\u00e4ytiin l\u00e4pi erilaisissa metallurgisissa prosesseissa syntyneiden kuonien koostumusta sek\u00e4 niiden mahdollista jatkok\u00e4ytt\u00f6\u00e4. Prosesseissa syntyvien kuonien koostumuksen todettiin riippuvan k\u00e4ytetyst\u00e4 prosessista ja ett\u00e4 joissain prosesseissa syntyv\u00e4t kuonat voivat olla ymp\u00e4rist\u00f6lle haitallisia, kun taas vastaavasti joitain kuonia voidaan k\u00e4ytt\u00e4\u00e4 esimerkiksi betonin t\u00e4yteaineena. Metallurgisissa prosesseissa syntyneille kuonille olisi t\u00e4rke\u00e4\u00e4 keksi\u00e4 jatkok\u00e4ytt\u00f6kohteita, sill\u00e4 ne viev\u00e4t runsaasti tilaa sek\u00e4 aiheuttavat mahdollisia ymp\u00e4rist\u00f6haittoja. Lis\u00e4ksi kuonien jatkok\u00e4yt\u00f6st\u00e4 voitaisiin hy\u00f6ty\u00e4 taloudellisesti.\n\nKokeellisessa osassa selvitettiin ferrokromin tuotannossa syntyv\u00e4n kuonan koostumus kokonaishajotuksen kautta, jonka j\u00e4lkeen kehitettiin mahdollisimman tehokas liuotusmenetelm\u00e4 kokonaishajotuksen olosuhteita lievemmiss\u00e4 olosuhteissa. Kokonaishajotusmenetelm\u00e4ksi valikoitui mikroaaltouunissa suoritettu typpihapon, vetykloridin sek\u00e4 vetyfluoridin yhdistelm\u00e4ll\u00e4 suoritettu hajotus. Paras liuotusmenetelm\u00e4 oli typpihapon ja vetyperoksidin reagenssiyhdistelm\u00e4ll\u00e4 tehty ultra\u00e4\u00e4niavusteinen liuotus.\nKokeellisessa osassa oltiin erityisesti kiinnostuneita kromin mahdollisimman tehokkaasta liuottamisesta, mutta sen lis\u00e4ksi m\u00e4\u00e4ritettiin my\u00f6s seuraavat alkuaineet: Al, Ca, Fe, Mg, Mn, Si ja Ti. N\u00e4m\u00e4 alkuaineet valikoituivat m\u00e4\u00e4ritett\u00e4viksi, sill\u00e4 niit\u00e4 esiintyi eniten kuonassa semikvantitatiivisen m\u00e4\u00e4rityksen perusteella.\n\nLiuotusmenetelm\u00e4ll\u00e4 saavutettiin parhaat saantoprosentit kaikkien muiden alkuaineiden, paitsi titaanin kohdalla, 10 ml HNO3 ja 5 ml H2O2 yhdistelm\u00e4ll\u00e4. N\u00e4m\u00e4 saantoprosentit on esitetty taulukossa 1.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Johanna Anttila (joelantt) on 2016-05-24 13:37:44.708715. 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 2016-05-24T13:37:45Z\nNo. of bitstreams: 2\nURN:NBN:fi:jyu-201605242682.pdf: 1762761 bytes, checksum: 74bcfa3d26e880e89f54ab0c75b0255d (MD5)\nlicense.html: 4861 bytes, checksum: f8428f6bc39b109d2a312527e9d2ab1f (MD5)", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2016-05-24T13:37:45Z (GMT). No. of bitstreams: 2\nURN:NBN:fi:jyu-201605242682.pdf: 1762761 bytes, checksum: 74bcfa3d26e880e89f54ab0c75b0255d (MD5)\nlicense.html: 4861 bytes, checksum: f8428f6bc39b109d2a312527e9d2ab1f (MD5)\n Previous issue date: 2016", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "1 verkkoaineisto (74 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": "kromikuona", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "ultra\u00e4\u00e4ni", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Kromin liuottaminen ferrokromikuonasta ultra\u00e4\u00e4niavusteisesti peroksidipohjaisten reagenssien avulla", "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-201605242682", "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": 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