| C | SK | CHEMISTRY; METALLURGY |
| C05 | KL | FERTILISERS; MANUFACTURE THEREOF (processes or devices for granulating materials, in general B01J 2/00; soil-conditioning or soil-stabilising materials C09K 17/00) [4] |
| C05B | UKL | PHOSPHATIC FERTILISERS |
| C05B 1/00 | HGR | Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly |
| C05B 1/02 | UGR1 | |
| C05B 1/04 | UGR1 | | . | Double-superphosphate; Triple-superphosphate Other fertilisers based essentially on monocalcium phosphate |
|
| C05B 1/06 | UGR1 | | . | Ammoniation of superphosphates (fertilisers based essentially on ammonium orthophosphate C05B 7/00) |
|
| C05B 1/10 | UGR1 | | . | Apparatus for the manufacture of superphosphates |
|
| C05B 3/00 | HGR | Fertilisers based essentially on di-calcium phosphate (C05B 11/00 takes precedence) |
| C05B 5/00 | HGR | Thomas phosphate; Other slag phosphates |
| C05B 7/00 | HGR | Fertilisers based essentially on alkali or ammonium orthophosphates (C05B 11/00 takes precedence) |
| C05B 9/00 | HGR | Fertilisers based essentially on phosphates or double phosphates of magnesium (C05B 11/00 takes precedence) |
| C05B 11/00 | HGR | Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes |
| C05B 11/02 | UGR1 | |
| C05B 11/04 | UGR1 | |
| C05B 11/06 | UGR2 | | . . | using nitric acid (nitrophosphates) |
|
| C05B 11/08 | UGR2 | |
| C05B 11/10 | UGR2 | | . . | using orthophosphoric acid |
|
| C05B 11/12 | UGR2 | | . . | using aqueous hydrochloric acid |
|
| C05B 11/14 | UGR2 | | . . | using wet gaseous acids |
|
| C05B 11/16 | UGR1 | |
| C05B 13/00 | HGR | Fertilisers produced by pyrogenic processes from phosphatic materials |
| C05B 13/02 | UGR1 | | . | from rock phosphates (C05B 13/06 takes precedence) |
|
| C05B 13/04 | UGR1 | | . | from metallic phosphorus compounds, e.g. ferro-phosphorus |
|
| C05B 13/06 | UGR1 | | . | Alkali or alkaline earth meta- or polyphosphate fertilisers |
|
| C05B 15/00 | HGR | Organic phosphatic fertilisers (bone meal C05B 17/00) |
| C05B 17/00 | HGR | Other phosphatic fertilisers, e.g. soft rock phosphates, bone meal |
| C05B 17/02 | UGR1 | |
| C05B 19/00 | HGR | Granulation or pelletisation of phosphatic fertilisers other than slag (granulating slag C04B) |
| C05B 19/02 | UGR1 | | . | of superphosphates or mixtures containing them |
|
| C05B 21/00 | HGR | Mixtures of phosphatic fertilisers covered by more than one of the preceding main groups |