Complex Fertilizers, DAP, MAP, NPK and other grades

Casale’s Granulated Complex Fertilizer process can produce more than 200 multinutrient fertilizer grades, including NPK, NS and NP binaries and diammonium phosphate (DAP) in plants with capacities ranging from 5 to 100 MTPH per train.

The process can be adapted to suit a wide range of available feedstocks:

• If only solid raw materials are available, a conventional granulation plant is used. Steam is added in the drum granulator to promote agglomeration of the solids
• If phosphoric and/or sulphuric acids are available, Casale Pipe Reactor technology is the preferred choice, with either a single pipe reactor located in the granulator (GPR) or the Dual Pipe Reactor process, with a Pipe Reactor in the granulator (GPR) producing NP slurry and a second one in the dryer (DPR) producing solid ammonium phosphate.

Key features

• Conventional granulation plant as used in solid-feed granulation processes
• Casale Dual Pipe Reactor technology for sulphuric and phosphoric acid neutralization by ammonia, comprising Granulator Pipe Reactor (GPR) and Dryer Pipe Reactor (DPR)
• Proven design and wide experience
• Wide flexibility in fertilizer grades, including 30-10-0, DAP, 17-17-17, 15-15-5 and more than 200 other grades
• Wide range of feed materials, including ammonium nitrate, urea, ammonium sulphate and ammonia for N; superphosphate and phosphoric acid for P; and potassium chloride (MOP) and potassium sulphate (SOP) for K
• Low recycle rate
• Low energy consumption
• Casale Dual Pipe Reactor technology can be easily implemented as a revamp
• Efficient scrubbing system with zero liquid effluent.