Feasibility of using organosilane dry-coated detoxified quartzes as raw material in different industrial sectors
![Thumbnail](/xmlui/bitstream/handle/10234/197961/80549.pdf.jpg?sequence=4&isAllowed=y)
Ver/ Abrir
Impacto
![Google Scholar](/xmlui/themes/Mirage2/images/uji/logo_google.png)
![Microsoft Academico](/xmlui/themes/Mirage2/images/uji/logo_microsoft.png)
Metadatos
Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/176601
comunitat-uji-handle3:10234/176618
comunitat-uji-handle4:
INVESTIGACIONMetadatos
Título
Feasibility of using organosilane dry-coated detoxified quartzes as raw material in different industrial sectorsAutoría
Fecha de publicación
2021-11-10Editor
ElsevierCita bibliográfica
MONFORT, E., et al. Feasibility of using organosilane dry-coated detoxified quartzes as raw material in different industrial sectors. Cleaner Engineering and Technology, 2021, vol. 5, p. 100331.Tipo de documento
info:eu-repo/semantics/articleVersión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Respirable crystalline silica (RCS), in the form of quartz and cristobalite from occupational sources, was classified by the International Agency for Research on Cancer (IARC) as carcinogenic to humans (category 1). ... [+]
Respirable crystalline silica (RCS), in the form of quartz and cristobalite from occupational sources, was classified by the International Agency for Research on Cancer (IARC) as carcinogenic to humans (category 1). In addition, RCS has recently been included in the Directive (EU) 2017/2398 about carcinogens and mutagens at work. Numerous studies suggest that the toxicity of quartz is conditioned by density and distribution of surface silanol groups, and it has been widely demonstrated at lab scale that masking these silanol groups significantly reduces silica toxicity. Based on these findings, a detoxifying, wet-coating method, using organosilanes as coating agent for reactive surface silanols, was previously developed and tested at industrial scale. In the present work, a new dry-coating process (patent pending) also using organosilanes was developed and applied to detoxify quartzes from different industrial branches. Dry-coating efficiency and stability were assessed and confirmed by both in-vitro tests (lactate dehydrogenase release and alkaline comet assay) and an intratracheal instillation study in rats. Finally, industrial trials were performed by different quartz end users (elastomers, foundry, adhesives, pigments and glazes) to evaluate the technical and economic feasibility of implementing this dry-coating process at industrial scale. From the obtained results, it can be drawn that the proposed methodology seems to represent a promising strategy to significantly reduce the risk associated with the handling of RCS-bearing materials. This RCS coating approach shows enough flexibility to be adapted to different industrial processes without significantly interfering with product quality. [-]
Publicado en
Cleaner Engineering and Technology Vol. 5, December 2021Entidad financiadora
European Commission Programme Environment and Resource Efficiency | Ministerio de Ciencia, Innovación y Universidades (Spain)
Código del proyecto o subvención
LIFE14 ENV/ES/000238 | CGL2015-66777-C2
Título del proyecto o subvención
SILIFE – Production of quartz powders with reduced crystalline silica toxicity | Prediction of emissions and exposure to micro and nanoparticles in industrial environments (PREDEXPIN)
Derechos de acceso
© 2021 The Authors. Published by Elsevier Ltd.
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
Aparece en las colecciones
- ITC_Articles [77]