Potassium sorbate synthesis

Yield:24634-61-5 91.5%

Reaction Conditions:

with potassium hydroxide in water at 55; for 0.5 h;Temperature;

Steps:

4 Example 4 The present procedure for preparing potassium sorbate comprises the steps of:

The present procedure for preparing potassium sorbate comprises the steps of: 1) injecting 40% sorbic acid aqueous solution into a ceramic membraneOf the reactor,The reactor was heated to 100 ° C bath: 2) 90% aqueous solution of potassium hydroxide was added,Sorbic acid aqueous solution and potassium hydroxide aqueous solution were added in a volume ratio of 1: 2; 3) the reaction vessel was placed on a shaker at a rotational speed of 120 rpm,The pH of the reaction system was maintained at 7.5,So that sorbic acid and potassium hydroxide at a temperature of 55 ° C reaction 30ηη; 4) reaction is completed,The reaction solution was cooled to room temperature,After pressure filtration,crystallization,Dehydration,dry,Granulation and drying process,Crystallization was carried out in a crystallization solution by adding 2.5%Of KC1, obtained potassium sorbate particles.In this example, the appearance of the potassium sorbate product was white, Purity of 99.9% or more,Product stability is good, The productThe yield was 91.5%.

References:

CN105669439,2016,A Location in patent:Paragraph 0022-0024