Electrochemical synthesis of peroxyacetic acid using conductive diamond electrodes / Salvador Cotillas in Industrial & engineering chemistry research, Vol. 50 N° 18 (Septembre 2011)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 50 N° 18 (Septembre 2011) . - pp. 10889–10893 Titre : Electrochemical synthesis of peroxyacetic acid using conductive diamond electrodes Type de document : texte imprimé Auteurs : Salvador Cotillas, Auteur ; Ana Sanchez-Carretero, Auteur ; Pablo Canizares, Auteur Année de publication : 2011 Article en page(s) : pp. 10889–10893 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Electrodes Résumé : In this work, the synthesis of peroxyacetic acid and peroxoacetate salts by electrolysis with conductive-diamond anodes is described, using three different raw materials: ethanol, acetaldehyde, and sodium acetate. Results show that peroxyacetic acid is produced at significant concentrations during the electrolyses of the three raw materials, although sodium acetate achieves the highest efficiency and, at the same time, the smallest carbon mineralization. Acetaldehyde behaves as a good raw material during a first stage but, afterward, it catalyzes the decomposition of peroxoacetate to the acetate anion. Moderate current densities and slightly alkaline pH seems to promote the synthesis of peroxyacetic acid and to restrain raw matter mineralization. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24523908 [article] Electrochemical synthesis of peroxyacetic acid using conductive diamond electrodes [texte imprimé] / Salvador Cotillas, Auteur ; Ana Sanchez-Carretero, Auteur ; Pablo Canizares, Auteur . - 2011 . - pp. 10889–10893. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 18 (Septembre 2011) . - pp. 10889–10893 Mots-clés : Electrodes Résumé : In this work, the synthesis of peroxyacetic acid and peroxoacetate salts by electrolysis with conductive-diamond anodes is described, using three different raw materials: ethanol, acetaldehyde, and sodium acetate. Results show that peroxyacetic acid is produced at significant concentrations during the electrolyses of the three raw materials, although sodium acetate achieves the highest efficiency and, at the same time, the smallest carbon mineralization. Acetaldehyde behaves as a good raw material during a first stage but, afterward, it catalyzes the decomposition of peroxoacetate to the acetate anion. Moderate current densities and slightly alkaline pH seems to promote the synthesis of peroxyacetic acid and to restrain raw matter mineralization. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24523908

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Improvements in the electrochemical production of ferrates with conductive diamond anodes using goethite as raw material and ultrasound / Ana Sanchez-Carretero in Industrial & engineering chemistry research, Vol. 50 N° 11 (Juin 2011)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 50 N° 11 (Juin 2011) . - pp. 7073-7076 Titre : Improvements in the electrochemical production of ferrates with conductive diamond anodes using goethite as raw material and ultrasound Type de document : texte imprimé Auteurs : Ana Sanchez-Carretero, Auteur ; Cristina Saez, Auteur ; Pablo Canizares, Auteur Année de publication : 2011 Article en page(s) : pp. 7073-7076 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Ultrasound Raw materials Production Résumé : The improvement in the electrochemical production of ferrates with conductive diamond anodes using goethite as raw material and ultrasounds has been studied. The conductive-diamond electrolysis of suspensions of goethite leads to a higher ferrate concentration than that of Fe(OH)3 suspensions and of iron-powder bed. With this raw material, the ferrate concentration increases continuously with a constant production rate, after a first more efficient stage in which results are similar to the other two raw materials. In addition, the ferrate production rate is significantly improved in the sonoelectrochemical system, suggesting that the amount of soluble iron ready to be oxidized to ferrates increases with the ultrasound effect The initial iron concentration only seems to have an influence on the first stage of the process. On the other hand, the concentration of ferrate strongly depends on the hydroxide anion concentration: the higher is the hydroxide concentration, the higher the ferrate concentration is. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24199926 [article] Improvements in the electrochemical production of ferrates with conductive diamond anodes using goethite as raw material and ultrasound [texte imprimé] / Ana Sanchez-Carretero, Auteur ; Cristina Saez, Auteur ; Pablo Canizares, Auteur . - 2011 . - pp. 7073-7076. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 11 (Juin 2011) . - pp. 7073-7076 Mots-clés : Ultrasound Raw materials Production Résumé : The improvement in the electrochemical production of ferrates with conductive diamond anodes using goethite as raw material and ultrasounds has been studied. The conductive-diamond electrolysis of suspensions of goethite leads to a higher ferrate concentration than that of Fe(OH)3 suspensions and of iron-powder bed. With this raw material, the ferrate concentration increases continuously with a constant production rate, after a first more efficient stage in which results are similar to the other two raw materials. In addition, the ferrate production rate is significantly improved in the sonoelectrochemical system, suggesting that the amount of soluble iron ready to be oxidized to ferrates increases with the ultrasound effect The initial iron concentration only seems to have an influence on the first stage of the process. On the other hand, the concentration of ferrate strongly depends on the hydroxide anion concentration: the higher is the hydroxide concentration, the higher the ferrate concentration is. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24199926

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