Method of mechanical dishwashing and compositions

Details Method of mechanical dishwashing and compositions Method of mechanical dishwashing and compositions

C - Chemistry, Metallurgy

11

D

149/19, 134/29

C11D 7/00 (2006.01) C11D 1/00 (2006.01) C11D 3/00 (2006.01) C11D 3/02 (2006.01) C11D 3/08 (2006.01) C11D 3/10 (2006.01) C11D 3/12 (2006.01)

Patent

CA 1048909

ABSTRACT OF THE DISCLOSURE A method for the mechanical washing of dishes, wherein the soiled dishes are treated with an aqueous alkaline liquor having a pH of from 8 to 13 which contains at least one compound inhibiting alkaline earth metal ion precipitation,rinsing and recovering cleaned dishes comprising using finely-dispersed, water-insoluble silicate compounds having a calcium-binding power of at least 50 mg CaO/gm of anhydrous substance and having the formula, combined water not shown, of (M2/nO)x . Me2O3 . (SiO2)y where M is a cation of the valence n, exchangeable with calcium, x is a number of from 0.7 to 1.5, Me is a member selected from aluminum and boron and y is a number of from 0.8 to 6, as said compound inhibiting alkaline earth metal ion precipita- tion as well as alkaline-reacting mechanical dish washing com- positions containing said silicate compounds.

198561

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