| abstract |
The use of polysaccharides or polysaccharide derivatives as components for building material mixtures is described, the polysaccharides or polysaccharide derivatives being obtainable by a) dissolving or swelling the polysaccharide or polysaccharide derivative in 50 to 80% by weight of water, based on the total weight. b) Conversion of the water from the swollen or dissolved polysaccharides or polysaccharide derivative into the vapor phase and simultaneous conversion of the dissolved or swollen polysaccharide or polysaccharide derivative into the solid state by introducing the dissolved or swollen polysaccharide derivatives into a high-speed gas baffle gas bombardment gas flow through the baffle gas Water vapor / inert gas mixture or water vapor / air mixture with a water vapor content of 40 to 99% by weight, based on the water vapor / inert gas mixture or water vapor / air mixture, the water is driven off. c) separation of the solid particles of the polysaccharide or polysaccharide derivative from the gas stream and optionally drying of the polysaccharide or polysaccharide derivative. |