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Development of a continuous manufacturing process for silica sols via the ion-exchange of a waterglass / Taeyoun Kim in Industrial & engineering chemistry research, Vol. 47 N°18 (Septembre 2008) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 47 N°18 (Septembre 2008) . - p. 6941–6948 Titre : Development of a continuous manufacturing process for silica sols via the ion-exchange of a waterglass Type de document : texte imprimé Auteurs : Taeyoun Kim, Auteur ; Sungwoo Hwang, Auteur ; Sanghoon Hyun, Auteur Année de publication : 2008 Article en page(s) : p. 6941–6948 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Silica  sol  Waterglass  Ion-exchange Résumé : The properties of aqueous colloidal silica sol synthesized by an ion-exchange in a waterglass solution were examined and a continuous manufacturing process of silica sol and regeneration was designed for producing silica sol from inexpensive starting materials in large quantities. The maximum ion-exchange capacity of resin, the ion-exchange kinetics, and the characteristics of the silica sol were evaluated. The process conditions for the continuous manufacturing process of silica sol were optimized. Silica sols synthesized by the continuous manufacturing process have silica contents in the range of 5−5.7 wt %, a pH of the sol in the range of 2.3−3.0, and a low residual sodium ion concentration. In terms of possessing a narrow deviation from the mean value of these properties, this process can manufacture reliable silica sols on a mass production level. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie071009d [article] Development of a continuous manufacturing process for silica sols via the ion-exchange of a waterglass [texte imprimé] / Taeyoun Kim, Auteur ; Sungwoo Hwang, Auteur ; Sanghoon Hyun, Auteur . - 2008 . - p. 6941–6948. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 N°18 (Septembre 2008) . - p. 6941–6948 Mots-clés : Silica  sol  Waterglass  Ion-exchange Résumé : The properties of aqueous colloidal silica sol synthesized by an ion-exchange in a waterglass solution were examined and a continuous manufacturing process of silica sol and regeneration was designed for producing silica sol from inexpensive starting materials in large quantities. The maximum ion-exchange capacity of resin, the ion-exchange kinetics, and the characteristics of the silica sol were evaluated. The process conditions for the continuous manufacturing process of silica sol were optimized. Silica sols synthesized by the continuous manufacturing process have silica contents in the range of 5−5.7 wt %, a pH of the sol in the range of 2.3−3.0, and a low residual sodium ion concentration. In terms of possessing a narrow deviation from the mean value of these properties, this process can manufacture reliable silica sols on a mass production level. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie071009d