Process for the production of phosphate fertilizers from rocks fosfáticas poor in P2O5, and the use of triple superphosphate or sludge from the manufacture of phosphoric acid

摘要

The present invention relates to a process for the production of fertilizers and the use of triple superphosphate marketed in bulk or sludge from the manufacture of phosphoric acid for the enrichment of RochThe fosfáticas poor in P2O5 and obtaining a fertilizer.The process of the present invention for fertilizer production comprises the steps of: (a) mixing fosfáticas rocks with low content of P2O5 and triple superphosphate marketed in bulk or sludgeThe manufacture of phosphoric acid; (b) the merger of the material obtained in (a); and (c) cooling the melt obtained from the step (b) in water, and is granular amorphous / glassy.