Aqueous cleaning in metal industry
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- Aqueous cleaning flowsheet
Literature: BAT of Surface Treatment of Metals & Plastics, 2006
- Typical parameters of the process
| Process | Temperature [°C] | Heat transfer medium | Residence time | Chemicals | Concentration | Details | Literature |
| Aqueous cleaning in process solution bath | 40-90 | Several minutes | alkalis or acids, silicates, phosphates and complexing and wetting agents | BAT for the surface treatment of metals and plastics, August 2006 | |||
| Aqueous cleaning in spray bath | 40-90 | Chlorinated hydrocarbones (CHC), hydrcarbones |
- Energy losses from the surface area of heated process solutions
LITERATURE: BAT for the Surface Treatment of Metals and Plastics, May 2005
