| 1/00 | Working-up tar (obtaining hydrocarbon oils C10G
) |
| 1/02 | Working-up tar (obtaining hydrocarbon oils C10G
) Removal of water (by distillation C10C 1/06) |
| 1/04 | Working-up tar (obtaining hydrocarbon oils C10G
) by distillation |
| 1/06 | Working-up tar (obtaining hydrocarbon oils C10G
) by distillation Removal of water |
| 1/08 | Working-up tar (obtaining hydrocarbon oils C10G
) by distillation Winning of aromatic fractions |
| 1/10 | Working-up tar (obtaining hydrocarbon oils C10G
) by distillation Winning of aromatic fractions benzene fraction |
| 1/12 | Working-up tar (obtaining hydrocarbon oils C10G
) by distillation Winning of aromatic fractions naphthalene fraction |
| 1/14 | Working-up tar (obtaining hydrocarbon oils C10G
) by distillation Winning of tar oils from tar |
| 1/16 | Working-up tar (obtaining hydrocarbon oils C10G
) by distillation Winning of pitch |
| 1/18 | Working-up tar (obtaining hydrocarbon oils C10G
) by extraction with selective solvents |
| 1/19 | Working-up tar (obtaining hydrocarbon oils C10G
) by thermal treatment not involving distillation |
| 1/20 | Working-up tar (obtaining hydrocarbon oils C10G
) Refining by chemical means |
| 3/00 | Working-up pitch, asphalt, bitumen |
| 3/02 | Working-up pitch, asphalt, bitumen by chemical means |
| 3/04 | Working-up pitch, asphalt, bitumen by chemical means by blowing or oxidising |
| 3/06 | Working-up pitch, asphalt, bitumen by distillation |
| 3/08 | Working-up pitch, asphalt, bitumen by selective extraction |
| 3/10 | Working-up pitch, asphalt, bitumen Melting |
| 3/12 | Working-up pitch, asphalt, bitumen Melting Devices therefor |
| 3/14 | Working-up pitch, asphalt, bitumen Solidifying; Disintegrating, e.g. granulating |