CONTROLLED-RELEASE FERTILIZERS: STUDY OF THE VITRIFIABLE SYSTEM 3P2O5-2K2O-(1-x)CaO-xMgO)
T. Labbilta1*, L. Abielaala1, M. Mesnaoui1, H. Aouad1, Y. Abouliatim2, M. Khouloud3, A. EL Abiad1
1 Laboratoire Sciences des Matériaux Inorganiques et leurs applications : Equipe Chimie de la Matière Condensée et de l’Environnement, ECMCE, FSSM, Université Cadi Ayyad 2 Laboratoire Matériaux Procédés Environnement Qualité, LMPEQ, ENSA de Safi, Université Cadi Ayya 3 Université Mohammed VI polytechnique (UM6P) *
Abstract
As conventional phosphate glasses have low chemical durability, their application was
limited. Thus, many efforts have been focused on increasing their chemical durability. New
applications are emerging recently as environmental materials. The aim of this work is to study the
effect of calcium substitution by magnesium on thermal properties and the chemical durability of
the 3P2O5-2K2O-(1-x) CaO-xMgO glass system (0 ≤ x ≤ 1) in order to their application as a
vitrifiable controlled release fertilizer.