NPK Fertilizer Production (Odda Process)

This publication approaches a typical Odda Process for NPK Fertilizer production using rock phosphate, ammonia, nitric acid and carbon dioxide. Initially, rock phosphate is digested with nitric acid. Calcium nitrate is removed by crystallization from the NP solution, which is neutralized by addition of gaseous ammonia. To produce NPK potassium chloride or sulfate is finally admixed. The product formulation is 16-16-16 (16% N, 16% P2O5, 16% K2O). The economic analysis is based on a plant located in the United States.

The report provides a comprehensive study of NPK Fertilizer production and related NPK Fertilizer production cost, covering three key aspects: a complete description of the NPK Fertilizer production process examined; an in-depth analysis of the related NPK Fertilizer plant capital cost (Capex); and an evaluation of the respective NPK Fertilizer plant operating costs (Opex).

The NPK Fertilizer production process description includes a block flow diagram (BFD), an overview of the industrial site installations, detailing both the process unit and the necessary infrastructure, process consumption figures and comprehensive process flow diagrams (PFD). The NPK Fertilizer plant capital cost analysis breaks down the Capex by plant cost (i.e., ISBL, OSBL and Contingency); owner's cost; working capital; and costs incurred during industrial plant commissioning and start-up. The NPK Fertilizer plant operating costs analysis covers operating expenses, including variable costs like raw materials and utilities, and fixed costs such as maintenance, labor, and depreciation.

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