BGS Council visit fertiliser plant

BGS Council visit fertiliser plant

Wednesday, May 5, 2010

BGS Council had a tour of the GrowHow fertiliser plant this week, with its meeting hosted by the company at its Cheshire base.

The plant runs continuously except for a few weeks when it is shut down each year and has an output of 1m tonnes of fertiliser a year.

The manufacture of fertiliser at Ince involves five separate stages:

1. Ammonia is formed from natural gas, air and steam

2. Nitric acid is produced from ammonia, air and purified water

3. The reaction between ammonia and nitric acid results in ammonium nitrate

4. Ammonium nitrate solution is prilled to form the straight ammonium nitrate product

5. Granulated compound NPKS fertilisers are manufactured by combining ammonium nitrate, ammonium phosphate and potash, sulphur is added in the form of ammonium sulphate.




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