| C | SK | CHEMISTRY; METALLURGY |
| C13 | KL | SUGAR INDUSTRY (polysaccharides, e.g. starch, derivatives thereof C08B; malt C12C) [4] |
| C13D | UKL | PRODUCTION OR PURIFICATION OF SUGAR JUICES |
| C13D 1/00 | HGR | Production of sugar, i.e. sucrose, juices |
| C13D 1/02 | UGR1 | | . | Expressing juice from sugar cane or similar material, e.g. sorghum saccharatum |
|
| C13D 1/04 | UGR2 | | . . | combined with imbibition |
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| C13D 1/06 | UGR2 | |
| C13D 1/08 | UGR1 | | . | Extraction of sugar from sugar beet with water |
|
| C13D 1/10 | UGR2 | |
| C13D 1/12 | UGR2 | | . . | Details of extraction apparatus, e.g. arrangements of pipes or valves |
|
| C13D 1/14 | UGR1 | | . | using extracting agents other than water, e.g. alcohol or salt solutions |
|
| C13D 3/00 | HGR | Purification of sugar juices (mechanical separation of solids from liquids B01) |
| C13D 3/02 | UGR1 | | . | using alkaline earth compounds |
|
| C13D 3/04 | UGR2 | | . . | followed by saturation |
|
| C13D 3/06 | UGR3 | | . . . | with carbon dioxide or sulfur dioxide |
|
| C13D 3/08 | UGR1 | | . | by oxidation or reduction |
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| C13D 3/10 | UGR2 | | . . | using sulfur dioxide or sulfites |
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| C13D 3/12 | UGR1 | | . | using adsorption agents, e.g. active carbon |
|
| C13D 3/14 | UGR1 | | . | using ion-exchange materials |
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| C13D 3/16 | UGR1 | | . | by physical means, e.g. osmosis |
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| C13D 3/18 | UGR1 | |