METHOD FOR PREPARATION OF EFFERVESCENT GRANULES

The invention provides a method for the preparation of effervescent granules wherein the reactive, effervescent components (one acidic and one alkaline CO2-generating component) are brought to reaction with one another under stirring in a vacuum (100-900 mbar) in an evacuable mixing chamber, with sa...

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Bibliographic Details
Main Authors SCHIEMENZ, WOLFGANG, HÖBART, HANS, WEISS, GERD
Format Patent
LanguageEnglish
Polish
Published 02.09.2024
Subjects
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
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Summary:The invention provides a method for the preparation of effervescent granules wherein the reactive, effervescent components (one acidic and one alkaline CO2-generating component) are brought to reaction with one another under stirring in a vacuum (100-900 mbar) in an evacuable mixing chamber, with said mixing chamber being evacuated to a first vacuum value p1, and then 're-evacuated' to said first vacuum value p1 again, optionally repeatedly, once the pressure has increased to a second vacuum value p2 due to the progressing CO2 formation of the effervescent reaction. The method is carried out in such a way that during at least the effervescent reaction step(s) the stirring speed in the mixing chamber exhibits a Froude number (Fr) of 0.5 or higher, preferably 0.8 or higher, more preferably 0.9 or higher; such as, in the range of 0.50 to 8.00, or 0.80 to 8.00, or 0.90 to 8.00.
Bibliography:Application Number: PL20220803244T