Development of a process for industrial parts cleaning based on shock waves and ionic liquids in dense phase carbon dioxide
IGF 17327 N
Within the project a process has been developed for cleaning of industrial parts on the basis of shock waves, ionic liquids and further additives in compressed carbon dioxide. The use of ionic liquids and other cleaning additives as well as shock or pressure waves was investigated. On film-like unpolar soils a good cleaning efficiency was shown by pure compressed carbon dioxide. With a modified spray cleaning system in combination with small amounts of ethanol as an additive an effective removal of film-like polar soils was obtained. Similar results were achieved with this system for particulate film-like polar soil combinations. The removal of saline soils was only partially possible. However, it is likely that with the addition of increased amounts of water saline soils could also be removed. With the new process combinations of polar, nonpolar and particulate soils can be removed more effectively than with previous methods.
The IGF-project 17327 N of the research association Europäische Forschungsgemeinschaft Reinigungs- und Hygienetechnologie e.V., Campus Fichtenhain 11, D-47807 Krefeld, was supported via the AiF within the funding programme „Industrielle Gemeinschaftsforschung und –entwicklung (IGF)“ by the Federal Ministry of Economic Affairs and Energy (BMWi) due to a decision of the German Parliament.
The research report is available on request from FRT.