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Phosphine adsorption removal from yellow phosphorus tail gas over CuO - ZnO - La2O3/activated carbon / Honghong Yi in Industrial & engineering chemistry research, Vol. 50 N° 7 (Avril 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 7 (Avril 2011) . - pp. 3960-3965 Titre : Phosphine adsorption removal from yellow phosphorus tail gas over CuO - ZnO - La2O3/activated carbon Type de document : texte imprimé Auteurs : Honghong Yi, Auteur ; Qiongfen Yu, Auteur ; Xiaolong Tang, Auteur Année de publication : 2011 Article en page(s) : pp. 3960-3965 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Activated  carbon  Adsorption Résumé : CuO―ZnO―La2O3/activated carbon (AC) adsorbent was used for phosphine (PH3) adsorption removal. The effects of O2 content, PH3 concentration, and adsorption temperature on the PH3 adsorption were investigated. The adsorbents were characterized by Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry/thermogravimetric (DSC/ TGA), and X-ray photoelectron spectroscopy (XPS). The results show that PH3 adsorption capacity is enhanced significantly by increasing oxygen content or adsorption temperature. Two bands that appear at 1161.1 and 1008.5 cm―1 in the FTIR spectrum of the exhausted adsorbent are ascribed to H3PO4. An exothermic peak in the DSC curve of exhausted adsorbent is ascribed to desorption of H3PO4 and condensation reactions of H3PO4 adsorbed species. It is observed that both P4O10 (65.09%) and H3PO4 (34.91%) exist over the exhausted adsorbent. The CuO―ZnO―La2O3/AC adsorbs PH3 and PH3 adsorbed is oxidized to form H3PO4 and P4O10. It naturally follows that the CuO―ZnO―La2O3/AC will be a potential adsorbent for PH3 removal from yellow phosphorus tail gas. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24027642 [article] Phosphine adsorption removal from yellow phosphorus tail gas over CuO - ZnO - La2O3/activated carbon [texte imprimé] / Honghong Yi, Auteur ; Qiongfen Yu, Auteur ; Xiaolong Tang, Auteur . - 2011 . - pp. 3960-3965. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 7 (Avril 2011) . - pp. 3960-3965 Mots-clés : Activated  carbon  Adsorption Résumé : CuO―ZnO―La2O3/activated carbon (AC) adsorbent was used for phosphine (PH3) adsorption removal. The effects of O2 content, PH3 concentration, and adsorption temperature on the PH3 adsorption were investigated. The adsorbents were characterized by Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry/thermogravimetric (DSC/ TGA), and X-ray photoelectron spectroscopy (XPS). The results show that PH3 adsorption capacity is enhanced significantly by increasing oxygen content or adsorption temperature. Two bands that appear at 1161.1 and 1008.5 cm―1 in the FTIR spectrum of the exhausted adsorbent are ascribed to H3PO4. An exothermic peak in the DSC curve of exhausted adsorbent is ascribed to desorption of H3PO4 and condensation reactions of H3PO4 adsorbed species. It is observed that both P4O10 (65.09%) and H3PO4 (34.91%) exist over the exhausted adsorbent. The CuO―ZnO―La2O3/AC adsorbs PH3 and PH3 adsorbed is oxidized to form H3PO4 and P4O10. It naturally follows that the CuO―ZnO―La2O3/AC will be a potential adsorbent for PH3 removal from yellow phosphorus tail gas. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24027642