BLEACHING OF A NIGERIAN KAOLIN BY OXALIC ACID LEACHING

Simple item page
dc.contributor.authorBaba, A.A
dc.contributor.authorMasobalaje, M.A
dc.contributor.authorIbrahim, A.S
dc.contributor.authorGirigisu, S
dc.contributor.authorEletta, O.A
dc.contributor.authorFasakin, I.A
dc.contributor.authorAluko, I
dc.contributor.authorAdekola, F.A
dc.date.accessioned2019-11-15T10:24:34Z
dc.date.available2019-11-15T10:24:34Z
dc.date.issued2015
dc.description.abstractThe level of improvement of whiteness of Egbeda (Nigeria) kaolin ore by oxalic acid leaching was investigated. The effects of acid concentration, reaction temperature and particle size on the extent of the ore dissolution were examined. The results of the leaching investigation on the improvement of the ore whiteness assessment were found to increase with increasing acid concentration, reaction temperature and decreasing particle size. At optimal leaching (0.5 mol L-1 H2C2O4, 85°C, 120 minutes) with moderate stirring, the dissolution reached 79.9 %, when total iron removal was achieved as evidenced from the EDXRF and EDS analyses. The dissolution curves were analyzed and found to conform to the surface chemical reaction, and the calculated activation energy of 41.34 kJ mol-1 supported the proposed model. These results are also corroborated by the output of the Post-Hoc test by Duncan Univariate Anova Analysis using SPSS 7.1. Finally, oxalic acid proved to be effective for treating the Egbeda (Nigeria) kaolin ore for total iron impurities removal and improving the ore whiteness for possible industrial utilities. Keywords: kaolin ore, Nigeria, leaching, oxalic acid, bleaching, iron impurities removal.en_US
dc.identifier.citationBaba, A.A. Masobalaje, M.A., Ibrahim, A.S., Girigisu, S., Eletta, O.A.A., Fasakin, I.A., Aluko, I. & Adekola, F. A. (2015): Bleaching of a Nigerian kaolin by oxalic acid leaching. Journal of Chemical Technology and Metallurgy. 50: (5) 623 – 630,en_US
dc.identifier.urihttp://dl.uctm.edu/journal/
dc.identifier.urihttp://hdl.handle.net/123456789/3445
dc.language.isoenen_US
dc.publisherUniversity of Chemical Technology and Metallurgyen_US
dc.relation.ispartofseriesVol.50;No.5
dc.subjectkaolin oreen_US
dc.subjectNigeriaen_US
dc.subjectleachingen_US
dc.subjectoxalic aciden_US
dc.subjectbleachingen_US
dc.subjectiron impurities removalen_US
dc.titleBLEACHING OF A NIGERIAN KAOLIN BY OXALIC ACID LEACHINGen_US
dc.typeArticleen_US

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Bleaching of a Nigerian kaolin by oxalic acid leaching.docx
Size:
14.16 KB
Format:
Microsoft Word XML
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.69 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections