反应详情

A related protocol is described in Japanese Unexamined Patent Application Publication No. 54-163516. Here, the polyester obtained from reacting crotonaldehyde and ketene is decomposed with hydrochloric acid in the presence of a urea compound. The resulting decomposition reaction mixture is filtered to yield crude sorbic acid. Aqueous sodium hydroxide solution is added to the crude sorbic acid to yield an aqueous sodium sorbate solution. The aqueous sodium sorbate solution is treated with activated carbon, neutralized, and cooled to crystallize the purified sorbic acid.

1. customThe resulting decomposition reaction mixture
2. filtrationis filtered
3. customto yield crude sorbic acid