Ammonium Sulphate
A high-nitrogen fertilizer usually produced through the neutralization of waste sulfuric acid using ammonia, ammonium sulphate is manufactured either by direct reaction or by evaporative crystallisation.
Related Technologies
Mechanical Vapour Recompression (MVR)
Forced Circulation Evaporator / Crystalliser (FC)
Draft Tube-Baffle Crystalliser (DTB)
Multiple Effect Evaporator (MEE)
Thermal Vapour Recompression (TVR)
Value
- Multiple stage arrangement improves heat recovery
- High quality condensate recovered (in recrystallisation applications)
- Control of magma density leads to longer on-stream availability
- Slow moving internal circulation propeller in the DTB minimises attrition of the crystals
- Simple controls minimize co-crystallisation of sodium chloride
Process
- Hot saturated feed is flash cooled stage-wise
- Surface condensers used to recover heat from flash vapours
- FC or DTB configuration used depending on crystal size requirement
- Centrifugation separates the crystals from the end brine
- Dryer / cooler achieves desired moisture level in product
- In some cases product compaction is employed
Flow Diagram
Unique Solutions
to Complex Problems
Partner with us to solve your Technological and Chemical problems
with innovative applications of tried-and-true processes.
Contact Us