Method for producing calcium propionate and installation for carrying out this production

摘要

Production of powdered calcium propionate (I) by convection drying involves supplying a pumpable aqueous suspension containing at least 30 wt.% finely divided (I) to a convection drier. An Independent claim is included for apparatus for the process which comprises a reactor (1) comprising a single stirred vessel or a cascade of at least two stirred vessels, a loop and a dispersing machine (3) for preparing the suspension. The outlet of the dispersing machine is linked via part of the loop (4.1) with the inlet of the reactor. The outlet of the reactor is linked by another part of the loop (4.2) with the inlet of the dispersing machine. A further line is linked to another inlet of the dispersing machine for introduction of solid starting material.