Manufacture of fertilizers and nitrogen compounds

This class includes:

• manufacture of fertilizers:

• straight or complex nitrogenous, phosphatic or potassic fertilizers
• urea, crude natural phosphates and crude natural potassium salts

• manufacture of associated nitrogen products:

• nitric and sulphonitric acids, ammonia, ammonium chloride, ammonium carbonate, nitrites and nitrates of potassium

This class also includes:

• manufacture of potting soil with peat as main constituent
• manufacture of potting soil mixtures of natural soil, sand, clays and minerals