Description

This is a Turnkey project consisting of design, fabrication, supply, testing and commissioning of a process plant for Producing wet Ammonium Perchlorate (AP) from Sodium Perchlorate and Ammonium Chloride. Ammonium Perchlorate is used as a solid propellant for ISRO's launch vehicles.

The various processes involved are:

• Ammonium Chloride dissolution
• Double Decomposition reaction
• Crystallization
• Recrystallization and Vacuum filtration
• Fluidised Drying the processis controlled automatically by PLC

All equipment for the above processes was designed and manufactured in house, along with associated piping, structure etc.

Construction details

Materials:

• Evaporators: Titanium Gr2
• Crystallisers: SS 316L
• Structure: SS 316L

Critical aspects

• Finite element analysis of the structure was carried out to ensure integrity under all loading conditions, including seismic loads.
• Design and routing of piping was carried out for entire plant.
• Control and instrumentation system is integrated in the process to enable remote control of process.
• Stainless teel fabrication for vessels and structures was carried out in an isolated stainless steel bay