| abstract |
process for the manufacture of sulfur-containing fertiolizer compositions, and fertilizer composition according to the present invention, a process is provided for the manufacture of sulfur-containing fertilizer compositions, said process comprising the steps of: a) obtaining a sludge from at least one phosphate-based fertilizer material selected from the group consisting of ammonium phosphates, nitrogen - phosphorus - potassium compounds (npk) based on ammonium phosphate, superphosphate and partially cured phosphate rocks; b) contact said mud with at least one surfactant and elemental sulfur; and c) introduce the mixture obtained in step b) into a granulator unit with the objective of obtaining granules of the fertilizer composition, with the sulfur being present in an amount within the range of 1 to 25% by weight, based on the total weight fertilizer composition. the present invention also obtains a fertilizer composition. |