Mineral Composition of Nodular Phosphorite of Karakalpakstan and its Processing into Simple SuperphosphateJaloldin Xudoyberdiev, Akhmed Reymov, Rashid Kurbaniyazov, Shafoat Namazov, Oydin Badalova and Atanazar SeytnazarovE3S Web Conf., 449 (2023) 06005DOI: https://doi.org/10.1051/e3sconf/202344906005