(0)C10C:0/0:
IPC6
SECTION C - CHEMISTRY; METALLURGY
WORKING-UP TAR, PITCH, ASPHALT, BITUMEN; PYROLIGNEOUS ACID
C10C
1/1

C 10 C

 WORKING-UP TAR, PITCH, ASPHALT, BITUMEN; PYROLIGNEOUS ACID (compositions of bituminous materials C 08 L 95/00; carbon filaments by decomposition of organic filaments D 01 F 9/14)

 

 

 
 

 1
/ 00 Working-up tar (coumarone resins C 08 F 244/00; obtaining hydrocarbon oils C 10 G) [4]

1
/ 02 • Removal of water (by distillation C 10 C 1/06)  

1
/ 04 • by distillation  

1
/ 06 • • Removal of water  

1
/ 08 • • Winning of aromatic fractions  

1
/ 10 • • • benzene fraction  

1
/ 12 • • • naphthalene fraction  

1
/ 14 • • Winning of tar oils from tar  

1
/ 16 • • Winning of pitch  

1
/ 18 • by extraction with selective solvents  

1
/ 19 • by thermal treatment not involving distillation [4]  

1
/ 20 • Refining by chemical means  
 

 3
/ 00 Working-up pitch, asphalt, bitumen

3
/ 02 • by chemical means  

3
/ 04 • • by blowing or oxidising  

3
/ 06 • by distillation  

3
/ 08 • by selective extraction  

3
/ 10 • Melting  

3
/ 12 • • Devices therefor  

3
/ 14 • Solidifying; Disintegrating, e.g. granulating  

3
/ 16 • • by direct contact with liquids  

3
/ 18 • Removing in solid form from reaction vessels, containers and the like, e.g. by cutting out, by pressing  
 

 5
/ 00 Production of pyroligneous acid (carbonisation of wood C 10 B)