Processes for separation of aromatic compounds using a thin film composite membrane
US11318423B2 · kind B2 · utility
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3References
12Claims
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Assignee
Inventors
Key dates
| Filing date | Apr 13, 2020 |
| Grant date | May 3, 2022 |
| Priority date | — |
| Expiry date | Jun 30, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2325/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This invention discloses a method for separation of an aromatic compound from a mixture comprising an alkane using an improved thin-film composite membrane. The membrane is particularly useful for separation of benzene from cyclohexane, which have similar boiling points. The membrane comprises a more mechanically durable and defect-free separation layer as a result of its fabrication from an ionomer solution that is substantially free of dissolved ionic species not associated with the ionomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.