Cleaning system
US6202654A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 16, 1995 |
| Grant date | Mar 20, 2001 |
| Priority date | — |
| Expiry date | Nov 16, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/0011
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to a method for cleaning a container (30) and conduits (32, 33, 36) associated with said container by adding a cleaning solvent to the container and circulating said solvent through said conduits back to said container. In accordance with the invention the cleaning solvent additionally is forced intermittently through a filter unit (1) containing an absorbent material, preferably active carbon (3), and then is allowed to flow through said conduits to said container, said container and conduits thus intermittently being flushed with clean solvent. The container may be a reaction vessel for chemical processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.