| C | SK | CHEMISTRY; METALLURGY |
| C13 | KL | SUGAR INDUSTRY (polysaccharides, e.g. starch, derivatives thereof C08B; malt C12C) [4] |
| C13F | UKL | PREPARATION OR PROCESSING OF RAW SUGAR, SUGAR, OR SYRUP |
| C13F 1/00 | HGR | Thickening, evaporating, or boiling sugar juice (boiling apparatus B01B; evaporators B01D; centrifuges B04B) |
| C13F 1/02 | UGR1 | | . | Crystallisation; Crystallising apparatus |
|
| C13F 1/04 | UGR1 | | . | Separating crystals from mother liquors |
|
| C13F 1/06 | UGR2 | |
| C13F 1/08 | UGR2 | | . . | Washing residual mother liquor from crystals |
|
| C13F 1/10 | UGR3 | |
| C13F 1/12 | UGR2 | | . . | Recycling mother liquor or wash liquors |
|
| C13F 1/14 | UGR2 | | . . | Dissolving or refining raw sugar |
|
| C13F 3/00 | HGR | Miscellaneous sugar products, e.g. powdered, lump, or liquid sugar; Working-up of sugar (C13F 5/00 , C13H take precedence; sweetmeats A23G 3/00; foods containing carbohydrate syrups, sugars, sugar alcohols or starch hydrolysates A23L 1/09) [3] |
| C13F 3/02 | UGR1 | | . | formed by moulding sugar |
|
| C13F 5/00 | HGR | Drying sugar (storing sugar B65) |