Spray-drying process for preparing a low density, low...

Details Spray-drying process for preparing a low density, low... Spray-drying process for preparing a low density, low...

2011-05-24

2011-05-24

Douyon, Lorna M (Department: 1761)

Cleaning compositions for solid surfaces, auxiliary compositions

Cleaning compositions or processes of preparing

Heterogeneous arrangement

C510S452000

Reexamination Certificate

active

07947642

ABSTRACT:
The present invention relates to a spray-drying process for the preparation of a spray-dried detergent powder having a bulk density of 426 g/l or less, wherein the spray-dried detergent powder comprises an anionic detersive surfactant and from 0 wt % to 10 wt % zeolite builder and from 0 wt % to 10 wt % phosphate builder, and wherein the process comprises the step of: (a) preparing an aqueous slurry suitable for spray-drying comprising from 30 wt % to 60 wt % water and from 40 wt % to 70 wt % non-aqueous material, wherein the non-aqueous material comprises an inorganic component and an organic component, wherein the weight ratio of the inorganic component to organic component is in the range of from 0.3:1 to 5:1; and (b) spraying the slurry into a spray-drying tower, wherein the temperature of the slurry as it enters the spray-drying tower is in the range of from 65° C. to 140° C., and wherein the outlet air temperature of the spray-drying tower is in the range of from 70° C. to 120° C.

REFERENCES:
patent: 2298650 (1942-10-01), Samaras et al.
patent: 3799880 (1974-03-01), Kelly et al.
patent: 3816352 (1974-06-01), Loureiro et al.
patent: 3962149 (1976-06-01), Chirash et al.
patent: 4129511 (1978-12-01), Ogoshi et al.
patent: 5151208 (1992-09-01), Huijben et al.
patent: 5726142 (1998-03-01), Partee et al.
patent: 6221831 (2001-04-01), Emery et al.
patent: 6528474 (2003-03-01), Artiga Gonzalez et al.
patent: 7078373 (2006-07-01), Burrows et al.
patent: 2003/0203832 (2003-10-01), Boucher et al.
patent: 2005/0101503 (2005-05-01), Caldwell et al.
patent: 2005/0187117 (2005-08-01), Somerville Roberts et al.
patent: 2005/0187130 (2005-08-01), Brooker et al.
patent: 2005/0187131 (2005-08-01), Brooker et al.
patent: 2006/0069007 (2006-03-01), Edward Boucher et al.
patent: 2006/0213801 (2006-09-01), Karaoren et al.
patent: 2008/0045435 (2008-02-01), Somerville Roberts et al.
patent: 41 02 745 (1992-08-01), None
patent: 1416039 (2004-05-01), None
patent: 1416040 (2004-05-01), None
patent: 1690921 (2006-08-01), None
patent: 1690922 (2006-08-01), None
patent: 2 159 534 (1985-12-01), None
patent: WO 93/23514 (1993-11-01), None
patent: WO0039261 (2000-07-01), None
patent: WO03/038028 (2003-05-01), None
patent: WO 2005/035382 (2005-04-01), None
patent: WO2005/083046 (2005-09-01), None
patent: WO2005/083048 (2005-09-01), None
patent: WO2005/083049 (2005-09-01), None
patent: WO2006/020788 (2006-02-01), None
patent: WO2006/020789 (2006-02-01), None
patent: WO2006/088665 (2006-08-01), None
patent: WO2006/088666 (2006-08-01), None

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