Propylene oxide-styrene monomer process
US5210354A · kind A · utility
19Cited by
7References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 8, 1992 |
| Grant date | May 11, 1993 |
| Priority date | — |
| Expiry date | May 8, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S585/905
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
In the co-production oxide and styrene monomer, there is produced a sodium-containing heavy residue stream previously suitable only as a low grade fuel. In accordance with the invention, the heavy residue stream is contacted with aqueous acid, and the resulting mixture is phase separated into an aqueous sodium-containing phase and an organic phase reduced in sodium, and at least a portion of the organic phase reduced in sodium is converted to styrene monomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.