Process to remove metal species from exhaust vapors
US5520896A · kind A · utility
71Cited by
7References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 1994 |
| Grant date | May 28, 1996 |
| Priority date | — |
| Expiry date | Jul 9, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D53/64
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The effluent stream from the treatment of glass with vapor-phase coating materials contains tin residues. By washing that effluent stream, in an apparatus having a scrubber bed and flow-control and -recycling means, with an acidic solution having a limited concentration of the tin residue, recovery efficiency of the post-coating treatment is improved, and process emissions are reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.