C10C1/00	7	Working-up tar {(petroleum (oil) tar C10C3/00)}	C10C1/00	C10C1/00		442
C10C1/005	8	{by mixing two or more coaltar fractions}	C10C1/00	C10C1/00		88
C10C1/02	8	Removal of water (by distillation C10C1/06{; de-watering of hydrocarbon oils C10G33/00})	C10C1/02	C10C1/02		151
C10C1/04	8	by distillation	C10C1/04	C10C1/04		754
C10C1/06	9	Removal of water	C10C1/06	C10C1/06		81
C10C1/08	9	Winning of aromatic fractions	C10C1/08	C10C1/08		55
C10C1/10	10	benzene fraction {light fraction}	C10C1/10	C10C1/10		52
C10C1/12	10	naphthalene fraction {heavy fraction}	C10C1/12	C10C1/12		30
C10C1/14	9	Winning of tar oils from tar	C10C1/14	C10C1/14		45
C10C1/16	9	Winning of pitch	C10C1/16	C10C1/16		147
C10C1/18	8	by extraction with selective solvents (preparation of hydrocarbon oils from tar oils C10G21/00)	C10C1/18	C10C1/18		284
C10C1/19	8	by thermal treatment not involving distillation	C10C1/19	C10C1/19		165
C10C1/20	8	Refining by chemical means {inorganic or organic compounds}(obtaining hydrocarbon oils C10G)	C10C1/20	C10C1/20		420
C10C1/205	9	{refining in the presence of hydrogen}	C10C1/20	C10C1/20		138
C10C3/00	7	Working-up pitch, asphalt, bitumen {(compositions of asphalts and other bitumenous materials C08L95/00)}	C10C3/00	C10C3/00		687
C10C3/002	8	{by thermal means}	C10C3/00	C10C3/00		591
C10C3/005	8	{by mixing several fractions (also coaltar fractions with petroleum fractions)}	C10C3/00	C10C3/00		346
C10C3/007	8	{winning and separation of asphalt from mixtures with aggregates, fillers and other products, e.g. winning from natural asphalt and regeneration of waste asphalt}	C10C3/00	C10C3/00		304
C10C3/02	8	by chemical means {reaction}	C10C3/02	C10C3/02		459
C10C3/023	9	{with inorganic compounds}	C10C3/02	C10C3/02		313
C10C3/026	9	{with organic compounds}	C10C3/02	C10C3/02		459
C10C3/04	9	by blowing or oxidising {, e.g. air, ozone}	C10C3/04	C10C3/04		642
C10C3/06	8	by distillation	C10C3/06	C10C3/06		356
C10C3/08	8	by selective extraction	C10C3/08	C10C3/08		412
C10C3/10	8	Melting	C10C3/10	C10C3/10		72
C10C3/12	9	Devices therefor {(transporting and melting for road construction E01C + s.gr.)}	C10C3/12	C10C3/12		528
C10C3/14	8	Solidifying, Disintegrating, e.g. granulating	C10C3/14	C10C3/14		295
C10C3/16	9	by direct contact with liquids	C10C3/16	C10C3/16		116
C10C3/18	8	Removing in solid form from reaction vessels, containers and the like, e.g. by cutting out, by pressing	C10C3/18	C10C3/18		73
C10C5/00	7	Production of pyroligneous acid {distillation of wood, dry distillation of organic waste}(carbonisation of wood C10B)	C10C5/00	C10C5/00		658
