Verfahren zur Herstellung von Calciumsorbat

摘要

Calcium sorbate is prepared by intimately mixing finely pulverized sorbic acid with the stoichiometric amount of finely pulverized calcium hydroxide and/or finely pulverized calcium oxide. Advantageously the water formed during the reaction is removed by performing the reaction under sub-atmospheric pressure, e.g. 200 to 400 mm. Hg. Complete conversion may be achieved by heating the reaction mixture to about 80 DEG C. after the exothermic reaction has ceased and this heating step may be combined with a drying step by applying a pressure below 100 mm. Hg. The reactants advantageously have an average grain size of less than 70m .