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Mechanochemical route for synthesizing KMgPO4 and NH4MgPO4 for application as slow-release fertilizers / Solihin in Industrial & engineering chemistry research, Vol. 49 N° 5 (Mars 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 5 (Mars 2010) . - pp. 2213–2216 Titre : Mechanochemical route for synthesizing KMgPO4 and NH4MgPO4 for application as slow-release fertilizers Type de document : texte imprimé Auteurs : Solihin, Auteur ; Qiwu Zhang, Auteur ; William Tongamp, Auteur Année de publication : 2010 Article en page(s) : pp. 2213–2216 Note générale : Indusrial Chemistry Langues : Anglais (eng) Mots-clés : Fertilizers;  Mechanochemical  synthesis Résumé : This article introduces a mechanochemical (MC) process for the synthesis of KMgPO4 and NH4MgPO4 by milling starting materials in a planetary ball mill. First, KMgPO4 was prepared by milling KHPO4 and Mg(OH)2 at a molar ratio of 1:1 for 120 min at mill rotational speeds of 500−600 rpm. Washing of KMgPO4 in water for 700 h released only up to 20−25% of K+ and PO42− ions into solution. Second, NH4MgPO4 was prepared by milling NH4HPO4 and Mg(OH)2 at a molar ratio of 1:1 for 120 min at mill rotational speeds of 300−700 rpm. Washing of NH4MgPO4 in water for 500 h released only up to 10−20% of NH4+ and PO42− ions into solution. The MC process could be developed to synthesize KMgPO4 and NH4MgPO4 for possible application as slow-release fertilizers. Note de contenu : Bibliogr. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901780v [article] Mechanochemical route for synthesizing KMgPO4 and NH4MgPO4 for application as slow-release fertilizers [texte imprimé] / Solihin, Auteur ; Qiwu Zhang, Auteur ; William Tongamp, Auteur . - 2010 . - pp. 2213–2216. Indusrial Chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 5 (Mars 2010) . - pp. 2213–2216 Mots-clés : Fertilizers;  Mechanochemical  synthesis Résumé : This article introduces a mechanochemical (MC) process for the synthesis of KMgPO4 and NH4MgPO4 by milling starting materials in a planetary ball mill. First, KMgPO4 was prepared by milling KHPO4 and Mg(OH)2 at a molar ratio of 1:1 for 120 min at mill rotational speeds of 500−600 rpm. Washing of KMgPO4 in water for 700 h released only up to 20−25% of K+ and PO42− ions into solution. Second, NH4MgPO4 was prepared by milling NH4HPO4 and Mg(OH)2 at a molar ratio of 1:1 for 120 min at mill rotational speeds of 300−700 rpm. Washing of NH4MgPO4 in water for 500 h released only up to 10−20% of NH4+ and PO42− ions into solution. The MC process could be developed to synthesize KMgPO4 and NH4MgPO4 for possible application as slow-release fertilizers. Note de contenu : Bibliogr. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901780v