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dc.contributor.authorRío Andrade, José Carlos del-
dc.contributor.authorGutiérrez Suárez, Ana-
dc.contributor.authorGonzález-Vila, Francisco Javier-
dc.contributor.authorMartín Martínez, Francisco-
dc.date.accessioned2011-09-23T14:22:36Z-
dc.date.available2011-09-23T14:22:36Z-
dc.date.issued1999-
dc.identifier.citationJournal of Analytical and Applied Pyrolysis 49: 165-177 (1999)es_ES
dc.identifier.urihttp://hdl.handle.net/10261/39937-
dc.descriptionInstituto de Recursos Naturales y Agrobiologı́a de Sevilla, CSIC, P.O. Box 1052, 41080 Seville, Spaines_ES
dc.description.abstractDifferent pitch deposits and impurities, including synthetic polymers occurring in pulps and pulp-mills, have been studied by pyrolysis-GC/MS. Among the samples analyzed, two organic deposits taken from a pulp mill before and after elementary chlorine free (ECF) bleaching, a series of rubber pieces collected from a centri-cleaner unit, and a series of specks occasionally occurring in a total chlorine free (TCF) bleached pulp were selected for this study. Pyrolysis in the presence of a methylating agent, tetramethylammonium hydroxide (TMAH) was required to identify deposits formed by salts of ellagic and fatty acids since these moieties decarboxylate upon conventional pyrolysis. Pyrolysis of the selected rubber pieces allowed the identification of polyisoprene, polystyrene, poly-α-methylstyrene and other synthetic polymers not completely characterized, arising from machine breakage. Likewise, the specks occurring in a TCF pulp were constituted by small fragments of trans-poly(isoprene) rubber. The characteristic pyrograms could be used as fingerprints to trace their source.es_ES
dc.description.sponsorshipThis research has been carried out with financial support from the Commission of the European Communities, Agriculture and Fisheries (FAIR) specific RTD programme, CT95-0560, Wood Extractives in Pulp and Paper Manufacture: Technical and Environmental Implications and Biological Removal.es_ES
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.rightsopenAccesses_ES
dc.subjectPulpes_ES
dc.subjectECFes_ES
dc.subjectTCFes_ES
dc.subjectPulp-mill depositses_ES
dc.subjectSynthetic polymerses_ES
dc.subjectPitches_ES
dc.subjectFatty acid saltses_ES
dc.subjectEllagic acid saltses_ES
dc.titleApplication of pyrolysis-gas chromatography-mass spectrometry to the analysis of pitch deposits and synthetic polymers in pulp and pulp millses_ES
dc.typeartículoes_ES
dc.identifier.doi10.1016/S0165-2370(98)00099-0-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.1016/S0165-2370(98)00099-0-
dc.contributor.funderEuropean Commission-
dc.identifier.funderhttp://dx.doi.org/10.13039/501100000780es_ES
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