Aluminum cleaner and system

Details Aluminum cleaner and system Aluminum cleaner and system

C - Chemistry, Metallurgy

23

G

134/16, 149/8

C23G 1/14 (2006.01) C23G 1/22 (2006.01)

Patent

CA 1210661

ABSTRACT OF THE DISCLOSURE Processes and alkaline cleaning compositions for treating aluminum containers to prevent off-flavor and off-taste in liquid comestible products with which the containers are filled. The processes involve the use of an aqueous alkaline cleaning solution having the following compositions: Ingredient Quantity, g/l 1. Alkali metal or ammonium carbonate 0.1 - 0.9 2. Alkali metal or ammonium tripolyphosphate 0.6 - 7.6 (anhydrous) 3. Alkali metal or ammonium tetraborate 0.5 - 6.3 (pentahydrate) 4. Alkali metal or ammonium metasilicate 0.1 - 0.8 (anhydrous) 5. Tri(alkali metal or ammonium) phosphate 0.4 - 5.4 (anhydrous) 6. Alkali metal or ammonium gluconate or 0.1 - 1.3 glucoheptonate 7. Surfactant 0.02 - 0.27

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