| 摘要 |
A process for producing starch glues of the Stein-Hall type by continuously gelatinising aqueous starch slurries at elevated temperatures and high shear and mixing the resulting starch paste with raw starch, is characterised by adding a water-soluble oxidant producing nascent oxygen under the prevailing reaction conditions, such as an inorganic per compound, to the carrier starch prior to or during gelatinisation so that the starch and oxidant are contacted at a temperature of at least 95 DEG C for from 1 to 5 minutes. The oxidant is added and uniformly dispersed in the carrier starch dispersion before the viscosity of the latter exceeds 15000 cp and the carrier throughput is selected so as to ensure that the contact time between the oxidant and the at least partially gelatinized carrier starch at a temperature of at least 95 DEG C is in the range of 1-5 minutes. |
