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dc.contributor.authorRajahalme, Joona
dc.contributor.authorPerämäki, Siiri
dc.contributor.authorBudhathoki, Roshan
dc.contributor.authorVäisänen, Ari
dc.date.accessioned2020-12-30T05:43:55Z
dc.date.available2020-12-30T05:43:55Z
dc.date.issued2021
dc.identifier.citationRajahalme, J., Perämäki, S., Budhathoki, R., & Väisänen, A. (2021). Effective Recovery Process of Copper from Waste Printed Circuit Boards Utilizing Recycling of Leachate. <i>JOM</i>, <i>73</i>(4), 980-987. <a href="https://doi.org/10.1007/s11837-020-04510-z" target="_blank">https://doi.org/10.1007/s11837-020-04510-z</a>
dc.identifier.otherCONVID_47536942
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/73508
dc.description.abstractThis study presents an optimized leaching and electrowinning process for the recovery of copper from waste printed circuit boards including studies of chemical consumption and recirculation of leachate. Optimization of leaching was performed using response surface methodology in diluted sulfuric acid and hydrogen peroxide media. Optimum leaching conditions for copper were found by using 3.6 mol L−1 sulfuric acid, 6 vol.% hydrogen peroxide, pulp density of 75 g L−1 with 186 min leaching time at 20°C resulting in complete leaching of copper followed by over 92% recovery and purity of 99.9% in the electrowinning. Study of chemical consumption showed total decomposition of hydrogen peroxide during leaching, while changes in sulfuric acid concentration were minor. During recirculation of the leachate with up to 5 cycles, copper recovery and product purity remained at high levels while acid consumption was reduced by 60%.en
dc.format.mimetypeapplication/pdf
dc.languageeng
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofseriesJOM
dc.rightsCC BY 4.0
dc.titleEffective Recovery Process of Copper from Waste Printed Circuit Boards Utilizing Recycling of Leachate
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-202012307436
dc.contributor.laitosKemian laitosfi
dc.contributor.laitosDepartment of Chemistryen
dc.contributor.oppiaineOrgaaninen kemiafi
dc.contributor.oppiaineEpäorgaaninen kemiafi
dc.contributor.oppiaineAnalyyttinen kemiafi
dc.contributor.oppiaineEpäorgaaninen ja analyyttinen kemiafi
dc.contributor.oppiaineSoveltava kemiafi
dc.contributor.oppiaineOrganic Chemistryen
dc.contributor.oppiaineInorganic Chemistryen
dc.contributor.oppiaineAnalytical Chemistryen
dc.contributor.oppiaineInorganic and Analytical Chemistryen
dc.contributor.oppiaineApplied Chemistryen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.description.reviewstatuspeerReviewed
dc.format.pagerange980-987
dc.relation.issn1047-4838
dc.relation.numberinseries4
dc.relation.volume73
dc.type.versionpublishedVersion
dc.rights.copyright© 2020 The Author(s)
dc.rights.accesslevelopenAccessfi
dc.subject.ysoliuotus
dc.subject.ysorikkihappo
dc.subject.ysopiirilevyt
dc.subject.ysotalteenotto
dc.subject.ysovetyperoksidi
dc.subject.ysokupari
dc.subject.ysosähkö- ja elektroniikkaromu
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p9032
jyx.subject.urihttp://www.yso.fi/onto/yso/p13743
jyx.subject.urihttp://www.yso.fi/onto/yso/p952
jyx.subject.urihttp://www.yso.fi/onto/yso/p11190
jyx.subject.urihttp://www.yso.fi/onto/yso/p13070
jyx.subject.urihttp://www.yso.fi/onto/yso/p19074
jyx.subject.urihttp://www.yso.fi/onto/yso/p21194
dc.rights.urlhttps://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.1007/s11837-020-04510-z
jyx.fundinginformationOpen access funding provided by University of Jyväskylä (JYU). The authors wish to thank the Finnish Innovation Fund (SITRA) and the Department of Chemistry at the University of Jyväskylä for financial support during this work. Rantasalmen SCEL Ltd. and Elker Ltd. are gratefully acknowledged for the provision of the PCB material.


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