A process for the production of compounded starch derivatives

Details A process for the production of compounded starch derivatives A process for the production of compounded starch derivatives

C - Chemistry, Metallurgy

11

D

C11D 3/37 (2006.01) C08L 3/02 (2006.01) C08L 3/10 (2006.01) C11D 3/22 (2006.01) C11D 7/26 (2006.01)

Patent

CA 2313171

The invention relates to a process for the production of a particulate preparation containing starch derivatives whereby particulate preparations with a high content of starch derivatives and a particle size distribution suitable for further processing into solid detergents are obtained from liquid systems containing such starch derivatives. The process essentially comprises the following steps: a) introducing a suspension containing a mixture of a starch derivative with a liquid solvent, which at least partly dissolves the starch derivative, and a solid carrier material into a mixer, b) drying the suspension with superheated vapor under a pressure below 900 mbar and at a drying temperature of 40°C to below 100°C, c) cooling the mixture thus obtained to a temperature below the drying temperature and d) forming granules during the drying step or during cooling of the mixture or the melt optionally formed.

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