Coromandel Fertilisers Ltd. (CFL) is operating a Phosphoric Acid Plant at Visakhapatnam, India having capacity of 255 MTPD since 1967. The plant is based on Dorr-Oliver Di-Hydrate process and was built and commissioned by Dorr-Oliver. The plant was designed to use Florida Rock and utilizes air cooling system for the phosphoric-gypsum slurry.

CFL carried out modifications to upgrade the plant to operate at 650-700 MTPD phosphoric acid using Togo and Algeria rock. The filtration section consists of one 58 sq. meter tilting pan filter.

CFL decided to install 110 sq. meter Horizontal Belt Filter system in addition to existing tilting pan filter for better performance of filtration.

HDO was called upon to commission this project as complete turnkey EPC project. The client set an aggressive deadline of 9 months for project completion.

Accomplishments:

• This is the longest horizontal belt filter installed in the Indian fertilizer industry
• The project is progressing as scheduled and slated for completion in September 2009