Process for preparing detergent composition containing sodium an

Details Process for preparing detergent composition containing sodium an Process for preparing detergent composition containing sodium an

1993-12-16

1995-02-28

Skane, Christine

Compositions

Electrolytes for electrical devices

252 891, 252156, 252160, C11D 1700, C11D 704

Patent

active

053934466

ABSTRACT:
A detergent composition comprises a fired ceramic body, which carries as effective ingredients sodium oxide and potassium oxide thereon. Sodium metaphosphate and/or calcium oxide may also be carried as optional ingredient(s). The fired ceramic body may be made of a ceramic material formed primarily of silicon oxide and aluminum oxide. Preferably, the detergent composition may be in the form of granules and may be enclosed in a container defining apertures through a wall thereof. These apertures are dimensioned so that the granular detergent composition are prevented from being lost therethrough. A granular detergent composition can be produced, for example, by adding sodium oxide and potassium oxide to a ceramic material, adding water to the resulting dry ceramic powder, kneading and forming the resulting mixture into a green body of a predetermined shape, drying the green body, firing the thus-dried green body at 500.degree. C. to 700.degree. C., impregnating the resulting fired body with an aqueous solution of sodium metaphosphate, and firing the thus-impregnated body again at a temperature in a range of from 200.degree. C. to 400.degree. C.

REFERENCES:
patent: 3954672 (1976-05-01), Somers et al.
patent: 4051056 (1977-09-01), Hartman
patent: 4944165 (1990-07-01), Leebeek et al.
patent: 5028569 (1991-07-01), Cihon

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