摘要 |
<p>The present invention relates to a spray-drying process for the preparation of a spray- dried detergent powder having a bulk density of 426g/l or less, wherein the spray-dried detergent powder comprises an anionic detersive surfactant and from 0wt% to 10wt% zeolite builder and from 0wt% to 10wt% phosphate builder, and wherein the process comprises the step of: (a) preparing an aqueous slurry suitable for spray-drying comprising from 30wt% to 60wt% water and from 40wt% to 70wt% 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.</p> |
申请人 |
THE PROCTER & GAMBLE COMPANY;SOMERVILLE ROBERTS, NIGEL, PATRICK;LUKSZA, PAUL, ANDRZEJ;RIDLEY, GORDON;FINLAY, CALLUM, NIALL FERGUS;BROOKER, ALAN, THOMAS |
发明人 |
SOMERVILLE ROBERTS, NIGEL, PATRICK;LUKSZA, PAUL, ANDRZEJ;RIDLEY, GORDON;FINLAY, CALLUM, NIALL FERGUS;BROOKER, ALAN, THOMAS |