Dihydric alcohols continuouslyacetalated
The alcohol and aqueous formaldehyde enter a rectification column near the top and the acetal or a water/acetal azeotrope - is obtained at the top and water at the bottom. An acid catalyst, e.g. acid form of an ion-exchange material, is used. The method can be used to make cyclic acetals of glycol,...
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| Zusammenfassung: | The alcohol and aqueous formaldehyde enter a rectification column near the top and the acetal or a water/acetal azeotrope - is obtained at the top and water at the bottom. An acid catalyst, e.g. acid form of an ion-exchange material, is used. The method can be used to make cyclic acetals of glycol, propane diol 1:2 or 1:3 or butane diols. |
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