AMMONIA; CYANOGEN; COMPOUNDS THEREOF (salts of oxyacids of halogens C01B 11/00; peroxides, salts of peroxyacids C01B 15/00; thiosulfates, dithionites, polythionates C01B 17/64; compounds containing selenium or telluriumC01B 19/00; azides C01B 21/08; metal amides C01B 21/092; nitrites C01B 21/50; phosphides C01B 25/08; salts of oxyacids of phosphorus C01B 25/16; compounds containing silicon C01B 33/00; compounds containing boron C01B 35/00)
| Subclass | Title |
|---|---|
| 1/00 | Ammonia; Compounds thereof |
| 1/02 | Ammonia; Compounds thereof Preparation or separation of ammonia |
| 1/04 | Ammonia; Compounds thereof Preparation or separation of ammonia Preparation of ammonia by synthesis (preparation or purification of gas mixtures for ammonia synthesis C01B 3/02) |
| 1/08 | Ammonia; Compounds thereof Preparation or separation of ammonia Preparation of ammonia from nitrogenous organic substances |
| 1/10 | Ammonia; Compounds thereof Preparation or separation of ammonia Separation of ammonia from ammonia liquors, e.g. gas liquors |
