Production of high carbon ferrochromium alloy from footwear leather waste ash through a carbothermic reduction in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVII, N° 11 (11/2012)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CVII, N° 11 (11/2012) . - p. 375-383 Titre : Production of high carbon ferrochromium alloy from footwear leather waste ash through a carbothermic reduction Type de document : texte imprimé Année de publication : 2012 Article en page(s) : p. 375-383 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Alliage fer-chrome Carbone Chrome -- Recyclage Combustion Cuirs et peaux -- Déchets -- Recyclage Energie Incinération Oxydes de chrome Thermodynamique Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : The majority of hazardous solid waste generated in “Rio Grande do Sul” State, Brazil, is produced from footwear leather industry. Thermal treatment leather waste is considered as a good alternative to deal with this problem, by generating energy. It is also possible to recover chromium from the ash generated during incineration. The aim of this work is to evaluate high carbon ferrochromium alloy production from leather waste ash, through computational and laboratory analysis. Computational thermodynamics was used to simulate ash Cr2O3 carbothermic reduction and to determine composition of the laboratory alloys. Several runs were done using a laboratory furnace at 1600oC to get ferrochromium alloys from the ashes. Different kinds of analyses were done to determine alloys and slags compositions. It was demonstrated that it is possible to use the chromium from leather waste ash for a production of high carbon ferrochromium alloy through carbothermic reduction at 1600oC. The results obtained showed a new opportunity for hazardous solid waste management of the leather industry, in the context of energy generation from combustion of leather waste. The computational thermodynamics simulations presented good agreement with experimental results. Note de contenu : - METHODOLOGY : Materials - Experimental procedure and apparatus - Thermodynamic simulations - RESULTS AND DISCUSSION : Equipment reproducibility - Chromium - Phosphorus - Sulphur - Silica - Carbon - Other elements - Conversion En ligne : https://drive.google.com/file/d/1KUS1CjDnYl6rTS_ZbsygJpyL71JCQYd_/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16521 [article]

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