A PROCESS FOR THE PRODUCTION OF COMPOUNDED STARCH DERIVATIVES

摘要

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.degree.C to below 100.degree.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.