| abstract |
191579WO01 31 Powders and Granules and Process for making such Powders and Granules Abstract The present invention is directed towards a process for making a powder or granule containing 5 (A) at least one alkali metal salt of citric acid, and at least one additive selected from (B) at least one (co)polymer containing carboxylic acid groups, partially neutralized with al- kali, in a weight ratio of (A):(B) of from 5:1 up to 100:1, wherein said powder or granule contains at least 75% by weight of citrate (A),10 said process comprising the steps of (a) mixing the at least one alkali metal salt of citric acid (A) and the at least one (co)polymer (B) in the presence of water, (b) removing most of said water by spray-drying or spray granulation using a gas with an in-15 let temperature of at least 125°C. |