ADVANCES IN PHOSPHATIC & GRANULATION TECHNOLOGY.

The increased cost of fuel and purchased power has directed the advancement of phosphatic technology toward development of energy efficient processes to make high nutrient fertilizers. The combination of a sulfuric acid po production and a phosphate complex producing wet process phosphoric acid and di-ammonium phosphate provides a unique opportunity for cogeneration of power. In NP/NPK manufacture, the pipe reactor technology has already replaced conventional pre-neutralizers in many plants in foreign countries. In India, MCF has implemented the technology for fluidized bed granulation with pipe reactor, which is under commissioning. The dual pipe reactor process developed by the cdF CHIMIE AZF appears attractive for the revamping of old NP/NPK plants to increase the production capacity and reduce energy requirement.