Difference between revisions of "Etching and descalling in metall industry"
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Revision as of 15:29, 24 November 2010
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- Etching and descalling flowsheet
Literature: BAT for Surface Treatment of Metals & Plastics, 2006
- Typical parameters of the process
Process | Temperature [°C] | Heat transfer medium | Residence time | Chemicals | Concentration | Details | Literature |
Etching of aluminium | Sodium hydroxide (some fluorides are added if necessary) | BAT for the surface treatment of metals and plastics, August 2006 | |||||
Decorative etching of aluminium | 40-90 | Sodium hydroxide | 4-10 |
- Energy losses from the surface area of heated process solutions
LITERATURE: BAT for the Surface Treatment of Metals and Plastics, May 2005