India: Plant Engineering Iffco Selects Casale Technology for Phosphate and NPK Complex

Editor: Ahlam Rais

Under the terms of the agreement, Casale will study the modifications required to boost the output at Iffco’s complex, located in Gujarat, India by 15 % to 25 % and also furnish a new Granulator Pipe Reactor for each of the two lines at the complex.

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Sketch of the new Granulator Pipe Reactor (GPR).
Sketch of the new Granulator Pipe Reactor (GPR).
(Source: Casale)

Gujarat/India – Kandla in Gujarat, India is home to Iffco’s oldest production centre for phosphates and NPK. Two of the existing lines were commissioned back in 1999, based on Grande Paroisse’s Dual Pipe Reactor technology (DPR), presently licensed by Casale after they acquired the entire Nitrates and Phosphates technology portfolio originally developed by Grande Paroisse in 2013.

When Iffco decided to debottleneck the two lines it opted for Casale’s Solid Fertilizers technologies and expertise. Under the terms of the agreement that was awarded early this year, Casale will study the modifications required to boost the output by 15 % to 25 %, depending on the fertilizer grade to be produced, as well as furnish, for each of the two lines, one new Pipe Reactor to replace the existing one in the granulator.

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The new Granulator Pipe Reactor (GPR) is, in fact, central to the revamping approach devised by Casale as it allows to:

• Increase the phosphoric acid feed to the plant.

• Increase the N/P molar ratio.

• Minimize the impact on the scrubbing system as well as on the rest of the plant. In particular, the existing Pipe Reactor in the dryer will be not replaced.

• Increase the overall plant flexibility of operation.

Last but not least, the new GPR can be easily fitted in existing granulator drums without major modifications.