Mostrar registro simples

dc.contributor.authorVeit, Hugo Marcelopt_BR
dc.contributor.authorOliveira, Erich Lopes Braitback dept_BR
dc.contributor.authorRichter, Guilherme Mullerpt_BR
dc.date.accessioned2015-11-10T02:41:39Zpt_BR
dc.date.issued2015pt_BR
dc.identifier.issn1807-0353pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/129448pt_BR
dc.description.abstractThe disposal of CRT monitors increases each year, generating millions of tons of waste containing various types of materials. The glass present in CRT tubes displayed about 20%–25% of lead oxide. If improperly disposed of, this glass can be leached directly in nature or may cause environmental contamination, especially with lead. Because of this leaching possibility, this waste is classified as Class I solid waste, according to the NBR 10004. Thermal processing of these glass tubes was seen as an alternative to remove lead from the glass matrix. Parameters such as reaction time, percentage of reducing agent, the reaction temperature, and atmospheric environment of the system were analyzed in this work. It was concluded that it is possible to remove the lead from the glass matrix by thermal processing. The removal of 92% of the lead from the glass was obtained at 800°C, a vacuum of 1.3 kPa, with 5% carbon as a reducing agent, and 18 hours of thermal processing.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofRem: revista Escola de Minas. Ouro Preto. Vol. 68, n. 3 (jul./set. 2015), p. 287-294pt_BR
dc.rightsOpen Accessen
dc.subjectLead removalen
dc.subjectChumbopt_BR
dc.subjectReciclagempt_BR
dc.subjectCRT monitorsen
dc.subjectLixo eletrônicopt_BR
dc.subjectElectrical wasteen
dc.subjectMeio ambientept_BR
dc.subjectEelectronic equipmenten
dc.titleThermal processes for lead removal from the funnel glass of CRT monitorspt_BR
dc.title.alternativeThermal processes for lead removal from the funnel glass of cathode ray tube monitors pt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000974106pt_BR
dc.type.originNacionalpt_BR


Thumbnail
   

Este item está licenciado na Creative Commons License

Mostrar registro simples