| Titre : |
Accelerated liming process using phase transfer catalyst |
| Type de document : |
texte imprimé |
| Auteurs : |
N. Vedaraman, Auteur ; K. V. Sandhya, Auteur ; K. C. Velappan, Auteur ; Chellappa Muralidharan, Auteur |
| Année de publication : |
2016 |
| Article en page(s) : |
p. 171-177 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Catalyse par transfert de phase
Chaulage
Cuirs et peaux de chèvres
Gonflement (physique)
Hydroxyde de tétraméthylammonium
Productivité
Travail de rivière (cuir)
|
| Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
| Résumé : |
In the present work, effect of using phase transfer catalysts (PTC) was studied in liming and re-liming processes of goat skin, for decrease in the processing time, thereby increasing productivity. Three different Phase Transfer Catalysts; Tetramethylammonium Hydroxide (TMAH), Tetraethylammonium Hydroxide (TEAH) and Tetrabutylammonium Hydroxide (TBAH) were chosen and experiments were conducted on liming and re-liming of goat skin to select suitable catalyst in comparison with the conventional liming process. The monitoring parameters were ease of hair removal and increase in pelt weight to find the maximum swelling and plumping. After determining the optimal PTC amount, studies were also carried out on reuse of liquor containing PTC with replenishment. Use of TMAH in liming process was found to bring about significant time reduction and could bring improved swelling in liming and re-liming processes. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Method - Liming of goat skin using three different phase transfer catalysts - Optimization of amount of TMAH required for liming process - Reusing of lime liquor with additional TMAH replenishment - The effect of TMAH in re-liming of goat skin - Reusing of relime liquor with additional TMAH replenishment
- RESULTS AND DISCUSSION : Average value of three experiments - Average value of three evaluations |
| En ligne : |
https://drive.google.com/file/d/17eQLi6rCFWCWdf0pdsh3ByZsXHrPt3Sh/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26218 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXI, N° 5 (05/2016) . - p. 171-177
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