Optimization of 4A zeolite synthesis as recovery of wastes from aluminum finishing

Citation
J. Dufour et al., Optimization of 4A zeolite synthesis as recovery of wastes from aluminum finishing, J ENVIR S A, 36(7), 2001, pp. 1257-1269
Citations number
15
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Environment/Ecology
Journal title
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING
ISSN journal
1093-4529 → ACNP
Volume
36
Issue
7
Year of publication
2001
Pages
1257 - 1269
Database
ISI
SICI code
1093-4529(2001)36:7<1257:OO4ZSA>2.0.ZU;2-D
Abstract
A model representing the synthesis process of 4A zeolite from wastes of alu minum finishing plants was obtained and validated through statistical tests . From this model, the optimum values for the molar ratios SiO2/Al2O3, Na2O /SiO2 and H2O/Na2O, which define the type and quality of the synthesized ze olite, were estimated for the use of these wastes as raw material. The obta ined zeolites could be used as water softeners in the formulation of deterg ents. The resulting liquors could be reused in the cleaning of the extrusio n matrices used for aluminum profiles or recycled for new zeolites synthesi s.