Encapsulated Urea-Kaolinite Nanocomposite for Controlled Release Fertilizer Formulations

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td align="left">Sample </td><td align="left">Major phase</td><td align="left">Minor phase</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td align="left" rowspan="2">Original kaolin</td><td align="left" rowspan="2">Kaolinite [Al2Si2O5(OH)4] </td><td align="left">Quartz [SiO2]</td></tr><tr><td align="left">Microcline [KAlSi3O8]</td></tr><tr><td align="center" colspan="3"><hr/></td></tr><tr><td align="left" rowspan="2">
 Beneficiated kaolin</td><td align="left" rowspan="2">
 Kaolinite [Al2Si2O5(OH)4] </td><td align="left">Clinochlore [Mg5Al(Si,Al)4O10(OH)8]</td></tr><tr><td align="left">Illite [KAl2(Si3AlO10)(OH)2]</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Mineralogical composition of the raw materials.

Journal of Chemistry

tab2

Table 2

Table 2: Encapsulated Urea-Kaolinite Nanocomposite for Controlled Release Fertilizer Formulations 