Abstract: The present invention concerns a process for the preparation of free flowing granules of low hygroscopicity of one or more methylglycine diacetic acid (MGDA) salts, of the formula wherein R?CH3 and M is hydrogen, alkali metal, alkaline earth metal, ammonium or substituted ammonium in the appropriate stoechiometric amounts, by a process comprising the steps of i) heating a concentrated slurry comprising methylglycine diacetic acid (MGDA) and/or any salts thereof, the slurry having a solids content in the range of 45% to 70% and suitably in the range from 50% to 70%, and a moisture content of 30% up to 55%, and suitably between 30% and 50%, to a temperature in the range of 50 to 120° C., preferably to about 80° C., and ii) spray granulating said slurry, using an air inlet temperature of 120° C. or less.

Abstract: The present invention concerns a process for the preparation of free flowing granules of low hygroscopicity of one or more methylglycine diacetic acid (MGDA) salts, of the formula wherein R=CH3 and M is hydrogen, alkali metal, alkaline earth metal, ammonium or substituted ammonium in the appropriate stoechiometric amounts, by a process comprising the steps of i) heating a concentrated slurry comprising methylglycine diacetic acid (MGDA) and/or any salts thereof, the slurry having a solids content content in the range of 45% to 70% and suitably in the range from 50% to 70%, and a moisture content of 30% up to 55%, and suitably between 30% and 50%, to a temperature in the range of 50 to 120° C., preferably to about 80° C., and ii) spray granulating said slurry, using an air inlet temperature of 120° C. or less.

Abstract: Surfactant blends, processes for preparing them and particulate detergent compositions containing them. Mobile liquid surfactant blends consisting essentially of alkyl polyglycosides and ethoxylated nonionic surfactant are provided, the surfactant blend having a viscosity at 65° C. measured at 50s−1 not exceeding 1 Pas, the weight ratio of alkyl polyglycoside to ethoxylated nonionic surfactant being within the range of from 35.65 to 65.35, there being from 2-25% of water. Various processes for the preparation of such blends are provided. The mobile surfactant blends can be used in the preparation of particulate detergent compositions or components by mixing the blend with a particulate carrier material without requiring a drying step.