Particulate detergent composition containing zeolite

Details Particulate detergent composition containing zeolite Particulate detergent composition containing zeolite

C - Chemistry, Metallurgy

11

D

C11D 3/12 (2006.01) C11D 17/06 (2006.01)

Patent

CA 2376227

A particulate zero-phosphate laundry detergent powder, preferably of bulk density 600-900 g/l, contains zeolite MAP and zeolite A in a weight ratio of at least 1:1. The powder may contain at least two different granular components containing organic surfactant and zeolite builder. A first granular component, which is preferably non-spray-dried and has a bulk density of 550- 900 g/l, contains zeolite MAP, while a second granular component, which is preferably spray-dried and has a bulk density of 200-450 g/l, contains zeolite A.

L'invention concerne une poudre détergente particulaire à lessive sans phosphate, ayant de préférence une densité apparente comprise entre 600 et 900 g/l, renfermant une zéolite MAP et une zéolite A selon un rapport de poids au moins égal à 1:1. La poudre peut renfermer au moins deux composants granuleux différents à base de tensioactif organique et d'adjuvant de zéolite. Un premier composant granuleux, de préférence non séché par atomisation et ayant une densité apparente comprise entre 550 et 900 g/l, renferme une zéolite MAP, et un second composant granuleux, de préférence séché par atomisation et ayant une densité apparente comprise entre 200 et 450 g/l, renferme une zéolite A.

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