[article]
| Titre : |
Tanning using basic chrome sulfate obtained from ash produced in the thermal treatment of leather wastes |
| Type de document : |
texte imprimé |
| Auteurs : |
Aline Dettmer, Auteur ; Keila Guerra Pacheco Nunes, Auteur ; Nilson Romeu Marcilio, Auteur |
| Année de publication : |
2010 |
| Article en page(s) : |
p. 280-288 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
| Résumé : |
Tanning is the process which converts hide (putrescible) into leather (non-putrescible) material. Tanning wastes contain chrome that is classified as hazardous; consequently, finding satisfactory treatments or proper disposal is a fundamental necessity. Few studies on alternatives treatments for these wastes have addressed the thermal treatment of shavings and trimmings generated during the production process. The ash obtained in this process is rich in chromium oxide, which can be recovered and reused in the tanning process. Firstly, the method consists of obtaining sodium chromate, followed by the production of basic chromium sulfate that can be applied in leather tanning. Preliminary tests were carried out utilizing the tanning salt solution obtained from the ash in tanning hide powder experiments. Two simultaneous analyses were carried out using the product obtained in the laboratory and a commercial product sample, to confirm the efficacy of the salt obtained from the ash. Secondly, the sulfate obtained in the laboratory was applied in the tanning of hide samples, and again two simultaneous analyses were carried out. The results obtained in this work were satisfactory and the typical characteristics of tanned hides were achieved, that is, the hydrothermal stability of the tanned samples and their structure modification (distance between fibers) verified using electron microscopy. |
| En ligne : |
https://drive.google.com/file/d/1sW9LL9OZHRST0yYE5-ricvo7QXpGJpvx/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10506 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CV, N° 9 (09/2010) . - p. 280-288
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Tanning using basic chrome sulfate obtained from ash produced in the thermal treatment of leather wastes in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CV, N° 9 (09/2010)
