| 摘要 |
FIELD: chemistry.SUBSTANCE: described is a method for micronisation of polyols, comprising the following steps: a) providing a solid polyol, having chemical formula CHO, which is solid at 20-25°C, b) feeding the polyol into a jet mill and applying pressure using nitrogen, and c) collecting the micronised polyol. Micronised polyols obtained using the disclosed method, having particle size distribution (d) from 20 to 60 mcm and a flowability below or equal to 5 s/100 g, preferably below 5 s/100 g, are disclosed. The micronised polyols, although having lower particle size distribution compared to the corresponding milled polyols, have improved flowability. Most preferably, the polyol is selected from a group comprising one or more of such compounds as maltitol, isomalt, mannitol, sorbitol, xylitol and erythritol.EFFECT: preferred polyols are characterised by a compressibility index equal to or higher than 40.14 cl, 4 ex |
