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)
Visualitza/
Impacte
![Google Scholar](/xmlui/themes/Mirage2/images/uji/logo_google.png)
![Microsoft Academico](/xmlui/themes/Mirage2/images/uji/logo_microsoft.png)
Metadades
Mostra el registre complet de l'elementcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/176601
comunitat-uji-handle3:10234/176618
comunitat-uji-handle4:
INVESTIGACIONMetadades
Títol
Feasibility of using organosilane dry-coated detoxified quartzes as raw material in different industrial sectorsAutoria
Data de publicació
2021-11-10Editor
ElsevierCita bibliogràfica
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.Tipus de document
info:eu-repo/semantics/articleVersió
info:eu-repo/semantics/publishedVersionParaules clau / Matèries
Resum
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. [-]
Publicat a
Cleaner Engineering and Technology Vol. 5, December 2021Entitat finançadora
European Commission Programme Environment and Resource Efficiency | Ministerio de Ciencia, Innovación y Universidades (Spain)
Codi del projecte o subvenció
LIFE14 ENV/ES/000238 | CGL2015-66777-C2
Títol del projecte o subvenció
SILIFE – Production of quartz powders with reduced crystalline silica toxicity | Prediction of emissions and exposure to micro and nanoparticles in industrial environments (PREDEXPIN)
Drets d'accés
© 2021 The Authors. Published by Elsevier Ltd.
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
Apareix a les col.leccions
- ITC_Articles [77]