Alkylation process using membrane for recovery of halides
US6281405A · kind A · utility
35Cited by
4References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 6, 2000 |
| Grant date | Aug 28, 2001 |
| Priority date | — |
| Expiry date | Dec 6, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/38
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for recovering halides from hydrocarbon containing streams is disclosed using a sulfonated hexafluro bis-A-polysulfone membrane of polymers and copolymers having the polymer repeat unit of the formula: ##STR1## in the polymer or copolymer. This process is applicable to recovering and recycling hydrogen chloride, which is used as a catalytic promoter, in hydrocarbon conversion processes such as isomerization and alkylation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.