Preparation of 3-hydroxytetrahydrofuran
AssigneeBASF SE
InventorsHerbert Mueller, Dieter Voges
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Abstract
A process for the preparation of 3-hydroxytetrahydrofuran by catalytic dehydration of butane-1,2,4-triol, in which a catalyst chosen from the group of the bleaching earths is used and the dehydration is carried out in the presence of not less than 3 moles of water per mole of butane-1,2,4-triol.
Claims3
A process for the preparation of 3-hydroxytetrahydrofuran by the dehydration of butane-1,2,4-triol in a distillation vessel in the liquid phase over a catalyst at an elevated temperature, wherein a catalyst chosen from the group of the bleaching earths is used, wherein the dehydration is carried out in the presence of not less than 3 moles of water per mole of butane-1,2,4-triol and wherein a mixture of 3-hydroxytetrahydrofuran in water is distilled off and an aqueous solution of butane-1,2,4-triol, containing not less than 60% of water, is introduced at the same time to the distillation vessel.
Dependencies are inferred from the claim text.