C
SECTION C — CHEMISTRY; METALLURGY
 C

Note(s)

In section C, the definitions of groups of chemical elements are as follows:

  • Alkali metals: Li, Na, K, Rb, Cs, Fr
  • Alkaline earth metals: Ca, Sr, Ba, Ra
  • Lanthanides: elements with atomic numbers 57 to 71 inclusive
  • Rare earths: Sc, Y, Lanthanides
  • Actinides: elements with atomic numbers 89 to 103 inclusive
  • Refractory metals: Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, W
  • Halogens: F, Cl, Br, I, At
  • Noble gases: He, Ne, Ar, Kr, Xe, Rn
  • Platinum group: Os, Ir, Pt, Ru, Rh, Pd
  • Noble metals: Ag, Au, Platinum group
  • Light metals: alkali metals, alkaline earth metals, Be, Al, Mg
  • Heavy metals: metals other than light metals
  • Iron group: Fe, Co, Ni
  • Non-metals: H, B, C, Si, N, P, O, S, Se, Te, noble gases, halogens
  • Metals: elements other than non-metals
  • Transition elements: elements with atomic numbers 21 to 30 inclusive, 39 to 48 inclusive, 57 to 80 inclusive, 89 upwards

  
CHEMISTRY
 C10
PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
 C10C
WORKING-UP TAR, PITCH, ASPHALT, BITUMEN; PYROLIGNEOUS ACID (compositions of bituminous materials C08L 95/00)
 C10C 1/00
Working-up tar (coumarone resins C08F 244/00; obtaining hydrocarbon oils C10G)
 C10C 1/02
·  Removal of water (by distillation C10C 1/06)
 C10C 1/04
·  by distillation
 C10C 1/06
·  ·  Removal of water
 C10C 1/08
·  ·  Winning of aromatic fractions
 C10C 1/10
·  ·  ·  benzene fraction
 C10C 1/12
·  ·  ·  naphthalene fraction
 C10C 1/14
·  ·  Winning of tar oils from tar
 C10C 1/16
·  ·  Winning of pitch
 C10C 1/18
·  by extraction with selective solvents
 C10C 1/19
·  by thermal treatment not involving distillation  [4]
 C10C 1/20
·  Refining by chemical means
 C10C 3/00
Working-up pitch, asphalt, bitumen
 C10C 3/02
·  by chemical means
 C10C 3/04
·  ·  by blowing or oxidising
 C10C 3/06
·  by distillation
 C10C 3/08
·  by selective extraction
 C10C 3/10
·  Melting
 C10C 3/12
·  ·  Devices therefor
 C10C 3/14
·  Solidifying; Disintegrating, e.g. granulating
 C10C 3/16
·  ·  by direct contact with liquids
 C10C 3/18
·  Removing in solid form from reaction vessels, containers and the like, e.g. by cutting out, by pressing
 C10C 5/00
Production of pyroligneous acid (carbonisation of wood C10B)