| Titre : |
Wet process technology IV. Evaluation of an alternative deliming agent |
| Type de document : |
texte imprimé |
| Auteurs : |
Maryann M. Taylor, Auteur ; David G. Bailey, Auteur ; Stephen H. Feairheller, Auteur ; P. M. Civitillo Sweeney, Auteur ; Edward J. Diefendorf, Auteur |
| Année de publication : |
1988 |
| Article en page(s) : |
p. 35-45 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
| Résumé : |
Ammonium sulfate is commonly used to delime hides by the United States tanning industry, a practice that results in elevated levels of ammonia in beamhouse effluent. Concern that eventual restrictions on the levels of ammonia permitted in tannery effluent will be difficult and expensive to meet has led to investigations to find alternative. While this substitution effectively lowered the concentration of ammonia in the effluent, the quality of the resulting leather has been questioned. The ability of magnesium to replace ammonia in deliming as reported in the literature was examined at ERRC. While differences were found in the resulting leather, modification of the published process produced an acceptable product. The chemical and physical changes which occurred using magnesium sulfate are compared with data from a standard process developed for converting cattlehides to chrome tanned leather using ammonium sulfate. The proposed modification to the process, the resulting analytical data, and the crust leather evaluations are presented. |
| En ligne : |
https://drive.google.com/file/d/1Gkqqw3j5BPg-DIiNvARvnN8p3tm72ZH0/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8841 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXIII (Année 1988) . - p. 35-45
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