The article deals with the process of mechanical activation and determination influence activating additives on degree solubility low-grade phosphoresces Central Kyzylkum. As well as samples various types addition acid salts NH4H2PO4, (NH4)2HPO4, at a ratio 5:5 in mortar mill RM 200, mode increasing time to 60 minutes, by heating resulting mixture 200°C component ratios. Development waste-free ...