| Titre : | Mechanochemical route for synthesizing KMgPO4 and NH4MgPO4 for application as slow-release fertilizers (2010) |
| Auteurs : | Solihin, Auteur ; Qiwu Zhang, Auteur ; William Tongamp, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 49 N° 5, Mars 2010) |
| Article en page(s) : | pp. 2213–2216 |
| Note générale : | Indusrial Chemistry |
| Langues : | Anglais |
| Tags : | 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 |
