Chromium(III) pigments : Use of leather wastes as alternative starting material / Kalarical Janardhanan Sreeram in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVI, N° 7 (07/2011)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CVI, N° 7 (07/2011) . - p. 219-225 Titre : Chromium(III) pigments : Use of leather wastes as alternative starting material Type de document : texte imprimé Auteurs : Kalarical Janardhanan Sreeram, Auteur ; Jonnalagadda Raghava Rao, Auteur ; Balachandran Unni Nair, Auteur Année de publication : 2011 Article en page(s) : p. 219-225 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Chrome trivalent -- Recyclage Chromite Cuir -- Déchets Diffractométrie de rayons X Incinération Pigments métalliques Récupération (Déchets, etc.) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Chromium containing leather wastes poses potentially significant challenges to the ecosystem when disposed of in landfills or when incinerated in the open. An attempt to recover chromium from such leather wastes so as to reduce the chromium that ends up in the landfill was studied. A method of recovery of the chromium in chromium tanned leathers by controlled closed furnace incineration and by employing the protein matrix as an energy source as well as a template for chromium(III) oxide synthesis is detailed. This method provides the advantage of reducing the chromium residues from the leather industry while producing chromite ore ultimately useful in the preparation of pigmented coatings. The dry pigment obtained was green colored and could be further processed and formulated as a pigmented coating (paint). When the chrome shavings were mixed with iron sulfate and then incinerated, a brown colored paint coating was achieved. The best conditions for zero generation/discharge of hazardous chromium(VI) were determined. The pigments developed were characterized in detail by XRD and SEM-EDAX. Photon correlation spectroscopy measurements indicate that the calcined pigments prior to further size reduction were in the range of 300-400 nm. En ligne : https://drive.google.com/file/d/1_VChVZ_rD7I0kqQV3B410GuK_-v8aPWo/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12031 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
013127	-	Périodique	Bibliothèque principale	Documentaires	Disponible

---

1 (1 - 1 / 1)