date:Aug 06, 2012
ent.
Cleaning with sulfuric acid-based cleaners at low temperatures
Currently, hot cleaning programmes with a mineral acid (phosphoric or nitric acid based acids) are used to remove the mineral deposit of calcium phosphate that remains after production and cleaning with a hot alkali. Unless it is removed, the minerals serve as traps for more soil and breeding areas for pathogenic and spoilage microorganisms. The recent increase in the price for phosphoric acid and the subsequent increase in dem