Low density agglomerate utilizing a carbohydrate binder.

摘要

A process for the preparation of a low density, substantially water-insoluble, particulate material which comprises forming an aqueous slurry containing precipitated calcium carbonate and a carbohydrate binder and treating said slurry to heating and mechanical processing steps to provide a particulate material having a particle size of 5-300 microns, a particle density of no more than 1.0 g/ml., and a resistance against degradation in water; and a low density, substantially water-insoluble, calcium carbonate-containing, particulate material prepared by such process.