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Auteur T. Öztürk |
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The extraction of tannin from valonia with a new extractor / K. Aydin in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXV (Année 1990)
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Titre : The extraction of tannin from valonia with a new extractor Type de document : texte imprimé Auteurs : K. Aydin, Auteur ; H. S. Gülbaran-Tülbentci, Auteur ; S. Yorgun, Auteur ; T. Öztürk, Auteur Année de publication : 1990 Article en page(s) : p. 1-5 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : In this work, the extraction of tannin from Turkish valonia was studied using water, in a new type of extractor. This new extraction system uses a bed of ground valonia which is continuously washed fresh solvent sprayed from mobile spray nozzles. This extractor was developed by Emir GÃœLBARAN in a pilot-plant scale. The effects of 1) extraction time, 2) solvent-to-raw-material ratio and 3) average particle diameter of valonia on extraction yield are determined for the GÃœLBARAN extractor.
The experimental results showed that the optimum extraction conditions are 180min. extraction time, 10.5kg. solvent/kg. raw material and 0.95 mm particle size. In these experiments valonia extracted in hot water yielded 93.15% of tannin.En ligne : https://drive.google.com/file/d/1t3nUvxdkgEEgFqisyIa1vGWwk_hhVXpZ/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8591
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