Preparation method of 1,10-decanediol

The invention discloses a preparation method of 1,10-decanediol, which is characterized by comprising the following steps: adding sebacic acid, decanediol and a titanate catalyst into a dry wax esterification reaction kettle, slowly heating to 130-180 DEG C while stirring, and carrying out vacuum dehydration reaction for 5-30 hours to obtain decanediol sebacate wax ester; and under the action of a hydrogenation catalyst, carrying out reduction reaction on the decanediol sebacate wax ester and hydrogen while keeping the hydrogen pressure at 10.0-20.0 MPa and the hydrogen flow rate at 300-1000 m /hour to generate a crude decanediol product, and carrying out high-vacuum distillation to obtain the 1,10-decanediol. The sebacic acid used as the main raw material is subjected to wax esterification reaction and hydrogenation reduction reaction to finally prepare the finished product. The finished product has the advantages of high purity and high yield (up to 95% above). The method has the advantages of simple production technique, low production cost and low pollution.