Regenerable cold trap for aluminum chloride effluent
US4479927A · kind A · utility
13Cited by
5References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 9, 1982 |
| Grant date | Oct 30, 1984 |
| Priority date | — |
| Expiry date | Aug 9, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B7/035
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Aluminum chloride gases and other gases from a processing system are directed to a cold trap including a blower connected thereto. The blower directs the gases, except for the aluminum chloride, out of the cold trap. The aluminum chloride is solidified in the trap. Means including a heater are provided to convert the solid aluminum chloride to a vapor and selectively empty the aluminum chloride out of the cold trap into another trap associated with means for chemically treating the aluminum chloride. The cold trap is then cooled and ready to receive additional aluminum chloride from the processing system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.