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dc.contributor.authorReuna, Sini
dc.contributor.authorVäisänen, Ari
dc.date.accessioned2021-09-28T06:24:14Z
dc.date.available2021-09-28T06:24:14Z
dc.date.issued2022
dc.identifier.citationReuna, S., & Väisänen, A. (2022). Purification of recovered phosphoric acid by extracting aluminium with di-2-ethylhexyl phosphoric acid. <i>Chemical Papers</i>, <i>76</i>(1), 417-425. <a href="https://doi.org/10.1007/s11696-021-01848-9" target="_blank">https://doi.org/10.1007/s11696-021-01848-9</a>
dc.identifier.otherCONVID_101186176
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/77933
dc.description.abstractThe extraction of aluminium from dilute phosphoric acid with di-2-ethylhexyl phosphoric acid (DEHPA) was optimized using response surface methodology. The optimization was based on the experimental three-level central composite face-centred design (CCF) and was conducted on real-life samples. The three variables included were pH, extractant concentration and aqueous to organic phase ratio (AO). Under the optimized conditions (pH 2.5, 0.6 M DEHPA and AO ratio 1:2), extraction efficiency of 99% for aluminium in four extraction stages is achieved. The purified phosphoric acid solution can then be utilized by the fertilizing industry. Stripping tests for organic phase loaded with aluminium were conducted with sulphuric acid. Extremely high stripping efficiency was obtained with 0.9 M sulphuric acid resulting in the recovery rate of 88% in one stage. After stripping, the aluminium sulphate solution can be reused as a precipitation agent for phosphorus in the wastewater treatment process.en
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherSpringer Science+Business Media; Institute of Chemistry, Slovak Academy of Sciences
dc.relation.ispartofseriesChemical Papers
dc.rightsCC BY 4.0
dc.subject.otherresponse surface methodology
dc.subject.otheroptimization
dc.subject.otheraewage sludge
dc.subject.otherwastewater
dc.subject.otherprecipitation agent
dc.subject.othersolvent extraction
dc.titlePurification of recovered phosphoric acid by extracting aluminium with di-2-ethylhexyl phosphoric acid
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-202109285001
dc.contributor.laitosKemian laitosfi
dc.contributor.laitosDepartment of Chemistryen
dc.contributor.oppiaineOrgaaninen kemiafi
dc.contributor.oppiaineAnalyyttinen kemiafi
dc.contributor.oppiaineEpäorgaaninen kemiafi
dc.contributor.oppiaineResurssiviisausyhteisöfi
dc.contributor.oppiaineEpäorgaaninen ja analyyttinen kemiafi
dc.contributor.oppiaineOrganic Chemistryen
dc.contributor.oppiaineAnalytical Chemistryen
dc.contributor.oppiaineInorganic Chemistryen
dc.contributor.oppiaineSchool of Resource Wisdomen
dc.contributor.oppiaineInorganic and Analytical Chemistryen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.type.coarhttp://purl.org/coar/resource_type/c_2df8fbb1
dc.description.reviewstatuspeerReviewed
dc.format.pagerange417-425
dc.relation.issn2585-7290
dc.relation.numberinseries1
dc.relation.volume76
dc.type.versionpublishedVersion
dc.rights.copyright© The Author(s) 2021
dc.rights.accesslevelopenAccessfi
dc.subject.ysojätevesi
dc.subject.ysotalteenotto
dc.subject.ysopintakemia
dc.subject.ysosaostus
dc.subject.ysoerottaminen (tekniikka)
dc.subject.ysooptimointi
dc.subject.ysoalumiini
dc.subject.ysojätevesiliete
dc.subject.ysofosfori
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p5794
jyx.subject.urihttp://www.yso.fi/onto/yso/p11190
jyx.subject.urihttp://www.yso.fi/onto/yso/p15067
jyx.subject.urihttp://www.yso.fi/onto/yso/p10304
jyx.subject.urihttp://www.yso.fi/onto/yso/p13144
jyx.subject.urihttp://www.yso.fi/onto/yso/p13477
jyx.subject.urihttp://www.yso.fi/onto/yso/p19563
jyx.subject.urihttp://www.yso.fi/onto/yso/p17938
jyx.subject.urihttp://www.yso.fi/onto/yso/p8695
dc.rights.urlhttps://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.1007/s11696-021-01848-9
jyx.fundinginformationOpen access funding provided by University of Jyväskylä (JYU). This research has received funding from the RAKI Programme of the Ministry of the Environment of Finland. Also, the financial support of Helsinki Region Environmental Services Authority is acknowledged.
dc.type.okmA1


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