dc.contributor.author | Meirbekova, Rauan | |
dc.contributor.author | Haarberg, Geir Martin | |
dc.contributor.author | Aarhaug, Thor Anders | |
dc.contributor.author | Sævarsdóttir, Gudrun A. | |
dc.date.accessioned | 2020-12-11T13:14:48Z | |
dc.date.available | 2020-12-11T13:14:48Z | |
dc.date.created | 2016-03-01T11:16:05Z | |
dc.date.issued | 2016 | |
dc.identifier.citation | Light Metals. 2016, 365-370. | en_US |
dc.identifier.issn | 0147-0809 | |
dc.identifier.uri | https://hdl.handle.net/11250/2718613 | |
dc.description.abstract | In the Hall-Héroult process, sulfur impurities may not only emit harmful gases but also reduce current efficiency. To better understand this process, the behaviour of sulfur compounds in a cryolite-alumina melt at 1253 K (980 °C) was investigated in a laboratory cell. Sodium sulfate (Na2SO4) was added into the molten bath as a sulfur source. Furnace off-gases were passed through a mass spectrometer for qualitative assessment. The stability of sodium sulfate in the cryolite melt was found to depend on the presence of carbon (t1/2 = 116 min) and carbon aluminium (t1/2 = 29 min). It changed dramatically during electrolysis (t1/2 = 5-8 min). Detected sulfurous gases included SO2, COS, CS2, and H2S. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Springer | en_US |
dc.relation.ispartofseries | The Minerals, Metals & Materials Series;2367-1181 | |
dc.subject | aluminium electrolysis | en_US |
dc.subject | cryolite-alumina melt | en_US |
dc.subject | sodium sulfate | en_US |
dc.subject | sulfur | en_US |
dc.title | Investigation of Sodium Sulfate Additions into Cryolite-Alumina Melts | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | submittedVersion | en_US |
dc.rights.holder | This is a pre-print of an article published in [Light Metals]. The final authenticated version is available online at: https://link.springer.com/chapter/10.1007%2F978-3-319-48251-4_60 | en_US |
dc.source.pagenumber | 365-370 | en_US |
dc.source.journal | Light Metals | en_US |
dc.identifier.doi | 10.1007/978-3-319-48251-4_60 | |
dc.identifier.cristin | 1341391 | |
dc.relation.project | Norges forskningsråd: 236665 | en_US |
cristin.unitcode | 7401,80,0,0 | |
cristin.unitname | SINTEF Materialer og kjemi | |
cristin.ispublished | true | |
cristin.fulltext | preprint | |
cristin.qualitycode | 1 | |