| abstract |
The invention relates to a catalyst for preparing β -ionone, a preparation method thereof and a method for preparing β -ionone by using the catalyst, wherein the active component of the catalyst comprises Pd, Sm, S and K elements, the catalyst is applied to α -ionone and/or gamma-ionone hydroisomerization for preparing β -ionone, the conversion rate of raw materials is more than 99%, and the yield of β -ionone is more than 95%. |