Les Inscriptions à la Bibliothèque sont ouvertes en
ligne via le site: https://biblio.enp.edu.dz
Les Réinscriptions se font à :
• La Bibliothèque Annexe pour les étudiants en
2ème Année CPST
• La Bibliothèque Centrale pour les étudiants en Spécialités
A partir de cette page vous pouvez :
Retourner au premier écran avec les recherches... |
Détail de l'auteur
Auteur R. A. El-Ghazawy
Documents disponibles écrits par cet auteur
Affiner la rechercheSurface active and thermodynamic properties of some surfactants derived from locally linear and heavy alkyl benzene in relation to corrosion inhibition efficiency / A. M. Al-Sabagh in Materials and corrosion, Vol. 62 N° 11 (Novembre 2011)
[article]
in Materials and corrosion > Vol. 62 N° 11 (Novembre 2011) . - pp. 1015–1030
Titre : Surface active and thermodynamic properties of some surfactants derived from locally linear and heavy alkyl benzene in relation to corrosion inhibition efficiency Type de document : texte imprimé Auteurs : A. M. Al-Sabagh, Auteur ; H. M. Abd El Bary, Auteur ; R. A. El-Ghazawy, Auteur Année de publication : 2012 Article en page(s) : pp. 1015–1030 Note générale : Génie Mécanique Langues : Anglais (eng) Mots-clés : Adsorption Corrosion inhibitors Quaternary ammonium salts Surface active properties Surfactant Thermodynamic Index. décimale : 620.1 Essais des matériaux. Défauts des matériaux. Protection des matériaux Résumé : Linear and heavy alkyl benzene (HAB) were sulfonated with fuming sulfuric acid (oleum) and the sulfonated products were esterified with tri and poly ethanolamine (d = 4 and 6). The prepared three esters from each series were quaternized with n-butyl bromide. The resulted six quaternized ester of linear and HAB sulfonate were named as (L1Q, L2Q, L3Q, H1Q, H2Q, and H3Q). The surface and thermodynamic properties of these compounds have been investigated. From the data obtained, it was found that surface tension and surface active properties for the HAB derivatives were better than which obtained from linear alkyl benzene (LAB) derivatives. From the results obtained from the surface activity, the best performance compound from each group was selected to study the corrosion inhibition efficiency of them relative to the surface activity. The obtained results show that the LAB derivative L3Q exhibited inhibition efficiency (93.1%) at 1000 ppm but H3Q exhibited (97%) at 600 ppm. The diversity of the resulted data obtained was discussed in the light of chemical structure of the alkyl benzene sulfonate.
DEWEY : 620.1 ISSN : 0947-5117 En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.201006017/abstract [article] Surface active and thermodynamic properties of some surfactants derived from locally linear and heavy alkyl benzene in relation to corrosion inhibition efficiency [texte imprimé] / A. M. Al-Sabagh, Auteur ; H. M. Abd El Bary, Auteur ; R. A. El-Ghazawy, Auteur . - 2012 . - pp. 1015–1030.
Génie Mécanique
Langues : Anglais (eng)
in Materials and corrosion > Vol. 62 N° 11 (Novembre 2011) . - pp. 1015–1030
Mots-clés : Adsorption Corrosion inhibitors Quaternary ammonium salts Surface active properties Surfactant Thermodynamic Index. décimale : 620.1 Essais des matériaux. Défauts des matériaux. Protection des matériaux Résumé : Linear and heavy alkyl benzene (HAB) were sulfonated with fuming sulfuric acid (oleum) and the sulfonated products were esterified with tri and poly ethanolamine (d = 4 and 6). The prepared three esters from each series were quaternized with n-butyl bromide. The resulted six quaternized ester of linear and HAB sulfonate were named as (L1Q, L2Q, L3Q, H1Q, H2Q, and H3Q). The surface and thermodynamic properties of these compounds have been investigated. From the data obtained, it was found that surface tension and surface active properties for the HAB derivatives were better than which obtained from linear alkyl benzene (LAB) derivatives. From the results obtained from the surface activity, the best performance compound from each group was selected to study the corrosion inhibition efficiency of them relative to the surface activity. The obtained results show that the LAB derivative L3Q exhibited inhibition efficiency (93.1%) at 1000 ppm but H3Q exhibited (97%) at 600 ppm. The diversity of the resulted data obtained was discussed in the light of chemical structure of the alkyl benzene sulfonate.
DEWEY : 620.1 ISSN : 0947-5117 En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.201006017/abstract