Polymer cracking
US5481052A · kind A · utility
41Cited by
8References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 8, 1993 |
| Grant date | Jan 2, 1996 |
| Priority date | — |
| Expiry date | Apr 8, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G1/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This invention relates to a process for cracking waste polymers in a fluidized bed reactor to produce vaporous products comprising primary products which can be further processed, eg in a steam cracker to produce olefins, characterized in that the vaporous products are treated to generate a primary product substantially free of a high molecular weight tail having molecular weights >700 prior to further processing. The removal of the high molecular weight tail minimizes fouling and prolongs the lifetime of the reactors used for further processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.