Hydrogen chloride-propylene separation
US4558167A · kind A · utility
5Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 1, 1983 |
| Grant date | Dec 10, 1985 |
| Priority date | — |
| Expiry date | Aug 1, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Hydrogen chloride is recovered from a mixture with propylene by extractive distillation with an inert extraction solvent to minimize reaction between hydrogen chloride and propylene during such distillation. The temperature and pressure conditions are coordinated with the extraction solvent and amount thereof to prevent the presence of hydrogen chloride in a liquid state. The process is particularly suitable for recovering hydrogen chloride in the production of allyl chloride by thermal chlorination of propylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.