Process for the preparation of powdery water-soluble cellulose derivatives with the application of a mixture of water vapor / inert gas or mixture of water vapor / air as a carrier gas carrier

摘要

Invention Patent: B "PROCESS FOR THE PREPARATION OF PULVERULENT HYDRO-SOLUBLE CELLULOSE DERIVATIVES WITH THE APPLICATION OF AN INERT WATER / GAS STEAM MIXTURE OR MIXTURE OF WATER / AIR STEAM AS TRANSPORT AND HEAT CARRIER GAS". The invention relates to a new, particularly economical process for the preparation of water-soluble powdery cellulose derivatives. The process includes the swelling or solution of the cellulose derivative in water and the subsequent grinding drying of the cellulose derivative, swollen or dissolved in a high speed gas shock mill without a sieve in which it is used as a transport and carrier gas. heat a mixture of water vapor / inert gas or a mixture of water vapor / air.