Separation of aqueous hydrogen chloride from gaseous chlorinated hydrocarbons
US3948622A · kind A · utility
8Cited by
2References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 12, 1974 |
| Grant date | Apr 6, 1976 |
| Priority date | — |
| Expiry date | Jul 12, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B7/01
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A chlorinated hydrocarbon stream is cooled to condense water vapor and a major portion of the hydrogen chloride as aqueous hydrogen chloride. The uncondensed portion is further cooled by direct quenching with aqueous quench liquid to condense further water vapor, with the quench circuit being maintained on the alkaline side by the addition of base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.