Aqueous stream treatment in chlorinated hydrocarbon production
US4028427A · kind A · utility
4Cited by
11References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 27, 1975 |
| Grant date | Jun 7, 1977 |
| Priority date | — |
| Expiry date | Aug 27, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/34
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
In the production of chlorinated hydrocarbons, a waste water stream is recovered from the effluent and stripped of chlorinated hydrocarbon impurities by the use of a portion of the hydrocarbon to be chlorinated as a stripping gas. In addition, an aqueous hydrogen chloride stream recovered from the chlorinated hydrocarbon effluent can also be stripped of chlorinated hydrocarbon impurities by the use of a portion of the hydrocarbon to be chlorinated as a stripping gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.