Patent ID: 6242639
Filing Date: 2001-06-05
Classification: B01J,C07C,Y10T

Abstract:
A method for preparing neopentyl glycol hydroxypivalate granules which comprisesi) generating neopentyl glycol hydroxypivalate crystals by passing a neopentyl glycol hydroxypivalate melt through a precrystallizer to obtain a melt which contains from 15 to 55 wt % of neopentyl glycol hydroxypivalate crystals, based on the total amount of neopentyl glycol hydroxypivalate, andii) applying the melt from step i) to a cooling belt as a sheet-like layer, solidifying the melt and crushing the solidified melt to size reduction to produce granules, oriii) applying the melt from step i) dropwise onto a cooling belt and solidifying the drops.