Separation of commercially valuable chemicals from tire-derived pyrolytic oils
US5208401A · kind A · utility
10Cited by
12References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 9, 1991 |
| Grant date | May 4, 1993 |
| Priority date | — |
| Expiry date | May 9, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G1/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Commercially valuable chemicals are separated from tire-derived pyrolytic oils by subjecting the pyrolytic oils to a fractional distillation at a temperature of up to about 204.degree. C. under atmospheric pressure to isolate at least one commercially valuable chemical selected from the group consisting of paraffins, naphthenes, olefins and aromatics. Particularly valuable chemicals which can be extracted from tire-derived pyrolytic oils are benzene, toluene, xylene, styrene and dl-limonene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.