Publication
Acid leaching of alloys within the quaternary system Fe-Si-Ca-Al
| dc.contributor.author | Margarido, Fernanda | |
| dc.contributor.author | Figueiredo, Maria Ondina | |
| dc.contributor.author | Queiroz, Ana | |
| dc.contributor.author | Martins, João Pedro de Almeida | |
| dc.date.accessioned | 2010-02-11T18:28:52Z | |
| dc.date.available | 2010-02-11T18:28:52Z | |
| dc.date.issued | 1997 | |
| dc.description.abstract | Silicon with high purity and fine particle size can be produced by acid leaching of Fe-Si industrial alloys under the condition that they have adequate chemical composition and structural constitution. Such alloys contain phases that fall within the system Fe-Si-Ca-Al, where the quaternary phase Caalsifer, with aproximate formula (Fe0.8Al0.1 0.1) (Si0.8Ca0.2)2, is found along with several binary and ternary phases (Fe-Si, Ca-Si, Al-Fe-Si, Ca-Al-Si). With the purpose of optimizing the phase, constitution alloys were synthesized within the system Fe-Si-Ca-Al. The results of leaching experiments performed using HCl (150 and 220g/L) at constant temperature (T=102 1 C) and ordinary atmosphere indicate that the Caalsifer plus Al-Fe-Si phases should be maximized whereas the FeSi2 phases should be minimized, by controlling Al/Ca and Fe/Si concentration ratios in the synthesis process. | pt |
| dc.identifier.citation | Margarido, F.; Figueiredo, M.O.; Queiroz, A.M.; Martins, J.I. (1997). Acid leaching of alloys within the quaternary system Fe-Si-Ca-Al. Industrial & Engineering Chemistry Research. ISSN 1520-5045. 36:12 p.5291–5295 | pt |
| dc.identifier.doi | 10.1021/ie970295y | |
| dc.identifier.issn | 1520-5045 | |
| dc.identifier.uri | http://hdl.handle.net/10198/1858 | |
| dc.language.iso | eng | pt |
| dc.publisher | ACS | pt |
| dc.subject | Acid leaching refining | pt |
| dc.subject | Synthesised alloys | pt |
| dc.title | Acid leaching of alloys within the quaternary system Fe-Si-Ca-Al | pt |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | 5295 | pt |
| oaire.citation.issue | 36(12) | pt |
| oaire.citation.startPage | 5291 | pt |
| oaire.citation.title | Industrial and Engineering Chemistry Research | pt |
| person.familyName | Queiroz | |
| person.givenName | Ana | |
| person.identifier.ciencia-id | 2611-D40C-3472 | |
| person.identifier.orcid | 0000-0003-4761-0618 | |
| person.identifier.rid | O-8367-2015 | |
| rcaap.rights | openAccess | pt |
| rcaap.type | article | pt |
| relation.isAuthorOfPublication | 508436a2-5db1-481e-9c48-eab160333d61 | |
| relation.isAuthorOfPublication.latestForDiscovery | 508436a2-5db1-481e-9c48-eab160333d61 |