Crystallization process for para-xylene recovery using two-stage recovery section
US5329061A · kind A · utility
15Cited by
10References
17Claims
0Family size
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Key dates
| Filing date | Jun 1, 1993 |
| Grant date | Jul 12, 1994 |
| Priority date | — |
| Expiry date | Jun 1, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C7/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
In a combination crystallization/xylene isomerization process for producing para-xylene crystals, the recovery section is modified to accommodate crystallizing and separating para-xylene crystals at two different temperatures (a higher temperature followed by a lower temperature). The benefit is a reduction in the overall energy cost of the process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.