Adsorption of starch, amylose, amylopectin and glucose monomer and their effect on the flotation of hematite and quartz.

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dc.contributor.authorPavlovic, Suzana
dc.contributor.authorBrandão, Paulo Roberto Gomes
dc.date.accessioned2014-10-31T12:37:08Z
dc.date.available2014-10-31T12:37:08Z
dc.date.issued2003
dc.description.abstractThe depressant effect of corn starch, its polysaccharide components (amylose and amylopectin), the monomer glucose and the dimer maltose were studied on hematite and quartz, by means of infrared spectrometry, adsorption isotherms determination and microflotation tests. All the carbohydrates tested have been effective in maintaining hematite hydrophilic, including glucose and maltose; as for quartz, only a flocculation action (mainly by amylopectin) had a mild effect in decreasing its floatability by the amine collector. FTIR studies confirmed that the carbohydrates adsorbed intensively onto hematite and the spectra of the adsorbed polymers and monomer were very similar, even though the non-adsorbed monomer spectrum was markedly different. The common adsorption mechanism indicated is a surface reaction involving the iron ion.pt_BR
dc.identifier.citationPAVLOVIC, S.; BRANDAO P. R. G. Adsorption of starch, amylose, amylopectin and glucose monomer and their effect on the flotation of hematite and quartz. Minerals Engineering, v. 16, p. 1117-1122, 2003. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0892687503003212>. Acesso em: 20 ago. 2014.pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.mineng.2003.06.011
dc.identifier.issn0892-6875
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/3664
dc.language.isoen_USpt_BR
dc.rights.licenseO periódico Minerals Engineering concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3457171315747.pt_BR
dc.subjectMineral processingpt_BR
dc.subjectIron orespt_BR
dc.subjectFlotation depressantspt_BR
dc.titleAdsorption of starch, amylose, amylopectin and glucose monomer and their effect on the flotation of hematite and quartz.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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